Major reorganization, start setup for trains
This commit is contained in:
parent
cf7350418f
commit
17a5b1eee3
File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,84 @@
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local modname = minetest.get_current_modname()
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local S = minetest.get_translator(modname)
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local function activate_normal_minecart(self)
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detach_driver(self)
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-- Detach passenger
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if self._passenger then
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local mob = self._passenger.object
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mob:set_detach()
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end
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end
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mcl_minecarts.register_minecart({
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itemstring = "mcl_minecarts:minecart",
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craft = {
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output = "mcl_minecarts:minecart",
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recipe = {
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{"mcl_core:iron_ingot", "", "mcl_core:iron_ingot"},
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{"mcl_core:iron_ingot", "mcl_core:iron_ingot", "mcl_core:iron_ingot"},
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},
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},
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entity_id = "mcl_minecarts:minecart",
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description = S("Minecart"),
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tt_helop = S("Vehicle for fast travel on rails"),
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long_descp = S("Minecarts can be used for a quick transportion on rails.") .. "\n" ..
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S("Minecarts only ride on rails and always follow the tracks. At a T-junction with no straight way ahead, they turn left. The speed is affected by the rail type."),
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S("You can place the minecart on rails. Right-click it to enter it. Punch it to get it moving.") .. "\n" ..
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S("To obtain the minecart, punch it while holding down the sneak key.") .. "\n" ..
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S("If it moves over a powered activator rail, you'll get ejected."),
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initial_properties = {
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mesh = "mcl_minecarts_minecart.b3d",
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textures = {"mcl_minecarts_minecart.png"},
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},
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icon = "mcl_minecarts_minecart_normal.png",
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drop = {"mcl_minecarts:minecart"},
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on_rightclick = function(self, clicker)
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local name = clicker:get_player_name()
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if not clicker or not clicker:is_player() then
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return
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end
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local player_name = clicker:get_player_name()
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if self._driver and player_name == self._driver then
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--detach_driver(self)
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elseif not self._driver and not clicker:get_player_control().sneak then
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self._driver = player_name
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self._start_pos = self.object:get_pos()
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mcl_player.player_attached[player_name] = true
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clicker:set_attach(self.object, "", vector.new(1,-1.75,-2), vector.new(0,0,0))
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mcl_player.player_attached[name] = true
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minetest.after(0.2, function(name)
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local player = minetest.get_player_by_name(name)
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if player then
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mcl_player.player_set_animation(player, "sit" , 30)
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player:set_eye_offset(vector.new(0,-5.5,0), vector.new(0,-4,0))
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mcl_title.set(clicker, "actionbar", {text=S("Sneak to dismount"), color="white", stay=60})
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end
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end, name)
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end
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end,
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on_activate_by_rail = activate_normal_minecart,
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_mcl_minecarts_on_step = function(self, dtime)
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-- Grab mob
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if math.random(1,20) > 15 and not self._passenger then
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local mobsnear = minetest.get_objects_inside_radius(self.object:get_pos(), 1.3)
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for n=1, #mobsnear do
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local mob = mobsnear[n]
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if mob then
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local entity = mob:get_luaentity()
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if entity and entity.is_mob then
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self._passenger = entity
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mob:set_attach(self.object, "", PASSENGER_ATTACH_POSITION, vector.zero())
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break
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end
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end
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end
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elseif self._passenger then
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local passenger_pos = self._passenger.object:get_pos()
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if not passenger_pos then
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self._passenger = nil
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end
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end
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end
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})
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@ -0,0 +1,35 @@
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local modname = minetest.get_current_modname()
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local modpath = minetest.get_modpath(modname)
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local mod = mcl_minecarts
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local S = minetest.get_translator(modname)
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-- Minecart with Chest
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mcl_minecarts.register_minecart({
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itemstring = "mcl_minecarts:chest_minecart",
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craft = {
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output = "mcl_minecarts:chest_minecart",
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recipe = {
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{"mcl_chests:chest"},
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{"mcl_minecarts:minecart"},
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},
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},
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entity_id = "mcl_minecarts:chest_minecart",
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description = S("Minecart with Chest"),
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tt_help = nil,
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longdesc = nil,
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usagehelp = nil,
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initial_properties = {
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mesh = "mcl_minecarts_minecart_chest.b3d",
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textures = {
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"mcl_chests_normal.png",
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"mcl_minecarts_minecart.png"
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},
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},
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icon = "mcl_minecarts_minecart_chest.png",
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drop = {"mcl_minecarts:minecart", "mcl_chests:chest"},
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groups = { container = 1 },
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on_rightclick = nil,
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on_activate_by_rail = nil,
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creative = true
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})
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mcl_entity_invs.register_inv("mcl_minecarts:chest_minecart","Minecart",27,false,true)
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@ -0,0 +1,64 @@
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local modname = minetest.get_current_modname()
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local modpath = minetest.get_modpath(modname)
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local mod = mcl_minecarts
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local S = minetest.get_translator(modname)
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function table_metadata(table)
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return {
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table = table,
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set_string = function(self, key, value)
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--print("set_string("..tostring(key)..", "..tostring(value)..")")
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self.table[key] = tostring(value)
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end,
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get_string = function(self, key)
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if self.table[key] then
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return tostring(self.table[key])
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end
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end
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}
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end
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-- Minecart with Command Block
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mod.register_minecart({
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itemstring = "mcl_minecarts:command_block_minecart",
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entity_id = "mcl_minecarts:command_block_minecart",
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description = S("Minecart with Command Block"),
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tt_help = nil,
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loncdesc = nil,
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usagehelp = nil,
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initial_properties = {
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mesh = "mcl_minecarts_minecart_block.b3d",
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textures = {
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"jeija_commandblock_off.png^[verticalframe:2:0",
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"jeija_commandblock_off.png^[verticalframe:2:0",
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"jeija_commandblock_off.png^[verticalframe:2:0",
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"jeija_commandblock_off.png^[verticalframe:2:0",
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"jeija_commandblock_off.png^[verticalframe:2:0",
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"jeija_commandblock_off.png^[verticalframe:2:0",
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"mcl_minecarts_minecart.png",
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},
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},
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icon = "mcl_minecarts_minecart_command_block.png",
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drop = {"mcl_minecarts:minecart"},
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on_rightclick = function(self, clicker)
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self._staticdata.meta = self._staticdata.meta or {}
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local meta = table_metadata(self._staticdata.meta)
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mesecon.commandblock.handle_rightclick(meta, clicker)
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end,
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_mcl_minecarts_on_place = function(self, placer)
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-- Create a fake metadata object that stores into the cart's staticdata
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self._staticdata.meta = self._staticdata.meta or {}
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local meta = table_metadata(self._staticdata.meta)
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mesecon.commandblock.initialize(meta)
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mesecon.commandblock.place(meta, placer)
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end,
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on_activate_by_rail = function(self, timer)
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self._staticdata.meta = self._staticdata.meta or {}
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local meta = table_metadata(self._staticdata.meta)
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mesecon.commandblock.action_on(meta, self.object:get_pos())
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end,
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creative = true
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})
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@ -0,0 +1,92 @@
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local modname = minetest.get_current_modname()
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local S = minetest.get_translator(modname)
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-- Minecart with Furnace
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mcl_minecarts.register_minecart({
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itemstring = "mcl_minecarts:furnace_minecart",
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craft = {
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output = "mcl_minecarts:furnace_minecart",
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recipe = {
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{"mcl_furnaces:furnace"},
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{"mcl_minecarts:minecart"},
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},
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},
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entity_id = "mcl_minecarts:furnace_minecart",
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description = S("Minecart with Furnace"),
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tt_help = nil,
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longdesc = S("A minecart with furnace is a vehicle that travels on rails. It can propel itself with fuel."),
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usagehelp = S("Place it on rails. If you give it some coal, the furnace will start burning for a long time and the minecart will be able to move itself. Punch it to get it moving.") .. "\n" ..
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S("To obtain the minecart and furnace, punch them while holding down the sneak key."),
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initial_properties = {
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mesh = "mcl_minecarts_minecart_block.b3d",
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textures = {
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"default_furnace_top.png",
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"default_furnace_top.png",
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"default_furnace_front.png",
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"default_furnace_side.png",
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"default_furnace_side.png",
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"default_furnace_side.png",
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"mcl_minecarts_minecart.png",
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},
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},
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icon = "mcl_minecarts_minecart_furnace.png",
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drop = {"mcl_minecarts:minecart", "mcl_furnaces:furnace"},
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on_rightclick = function(self, clicker)
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local staticdata = self._staticdata
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-- Feed furnace with coal
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if not clicker or not clicker:is_player() then
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return
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end
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local held = clicker:get_wielded_item()
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if minetest.get_item_group(held:get_name(), "coal") == 1 then
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staticdata.fueltime = (staticdata.fueltime or 0) + 180
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-- Trucate to 27 minutes (9 uses)
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if staticdata.fueltime > 27*60 then
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staticdata.fuel_time = 27*60
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end
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if not minetest.is_creative_enabled(clicker:get_player_name()) then
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held:take_item()
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local index = clicker:get_wield_index()
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local inv = clicker:get_inventory()
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inv:set_stack("main", index, held)
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end
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self.object:set_properties({textures =
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{
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"default_furnace_top.png",
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"default_furnace_top.png",
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"default_furnace_front_active.png",
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"default_furnace_side.png",
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"default_furnace_side.png",
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"default_furnace_side.png",
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"mcl_minecarts_minecart.png",
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}})
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end
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end,
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on_activate_by_rail = nil,
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creative = true,
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_mcl_minecarts_on_step = function(self, dtime)
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local staticdata = self._staticdata
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-- Update furnace stuff
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if (staticdata.fueltime or 0) > 0 then
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staticdata.fueltime = (staticdata.fueltime or dtime) - dtime
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if staticdata.fueltime <= 0 then
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self.object:set_properties({textures =
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{
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"default_furnace_top.png",
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"default_furnace_top.png",
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"default_furnace_front.png",
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"default_furnace_side.png",
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"default_furnace_side.png",
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"default_furnace_side.png",
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"mcl_minecarts_minecart.png",
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}})
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staticdata.fueltime = 0
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end
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end
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end,
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})
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@ -0,0 +1,178 @@
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local modname = minetest.get_current_modname()
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local modpath = minetest.get_modpath(modname)
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local mod = mcl_minecarts
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local S = minetest.get_translator(modname)
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local LOGGING_ON = minetest.settings:get_bool("mcl_logging_minecarts", false)
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local function mcl_log(message)
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if LOGGING_ON then
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mcl_util.mcl_log(message, "[Minecarts]", true)
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end
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end
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local function hopper_take_item(self, dtime)
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local pos = self.object:get_pos()
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if not pos then return end
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if not self or self.name ~= "mcl_minecarts:hopper_minecart" then return end
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if mcl_util.check_dtime_timer(self, dtime, "hoppermc_take", 0.15) then
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--minetest.log("The check timer was triggered: " .. dump(pos) .. ", name:" .. self.name)
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else
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--minetest.log("The check timer was not triggered")
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return
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end
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local above_pos = vector.offset(pos, 0, 0.9, 0)
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local objs = minetest.get_objects_inside_radius(above_pos, 1.25)
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if objs then
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mcl_log("there is an itemstring. Number of objs: ".. #objs)
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for k, v in pairs(objs) do
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local ent = v:get_luaentity()
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if ent and not ent._removed and ent.itemstring and ent.itemstring ~= "" then
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local taken_items = false
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mcl_log("ent.name: " .. tostring(ent.name))
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mcl_log("ent pos: " .. tostring(ent.object:get_pos()))
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local inv = mcl_entity_invs.load_inv(self, 5)
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if not inv then return false end
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local current_itemstack = ItemStack(ent.itemstring)
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mcl_log("inv. size: " .. self._inv_size)
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if inv:room_for_item("main", current_itemstack) then
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mcl_log("Room")
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inv:add_item("main", current_itemstack)
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ent.object:get_luaentity().itemstring = ""
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ent.object:remove()
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taken_items = true
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else
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mcl_log("no Room")
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end
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if not taken_items then
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local items_remaining = current_itemstack:get_count()
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-- This will take part of a floating item stack if no slot can hold the full amount
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for i = 1, self._inv_size, 1 do
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local stack = inv:get_stack("main", i)
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mcl_log("i: " .. tostring(i))
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mcl_log("Items remaining: " .. items_remaining)
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mcl_log("Name: " .. tostring(stack:get_name()))
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if current_itemstack:get_name() == stack:get_name() then
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mcl_log("We have a match. Name: " .. tostring(stack:get_name()))
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local room_for = stack:get_stack_max() - stack:get_count()
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mcl_log("Room for: " .. tostring(room_for))
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if room_for == 0 then
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-- Do nothing
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mcl_log("No room")
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elseif room_for < items_remaining then
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mcl_log("We have more items remaining than space")
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items_remaining = items_remaining - room_for
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stack:set_count(stack:get_stack_max())
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inv:set_stack("main", i, stack)
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taken_items = true
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else
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local new_stack_size = stack:get_count() + items_remaining
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stack:set_count(new_stack_size)
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mcl_log("We have more than enough space. Now holds: " .. new_stack_size)
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inv:set_stack("main", i, stack)
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items_remaining = 0
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ent.object:get_luaentity().itemstring = ""
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ent.object:remove()
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taken_items = true
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break
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end
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mcl_log("Count: " .. tostring(stack:get_count()))
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mcl_log("stack max: " .. tostring(stack:get_stack_max()))
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--mcl_log("Is it empty: " .. stack:to_string())
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end
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if i == self._inv_size and taken_items then
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mcl_log("We are on last item and still have items left. Set final stack size: " .. items_remaining)
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current_itemstack:set_count(items_remaining)
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--mcl_log("Itemstack2: " .. current_itemstack:to_string())
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ent.itemstring = current_itemstack:to_string()
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end
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end
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end
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--Add in, and delete
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if taken_items then
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mcl_log("Saving")
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mcl_entity_invs.save_inv(ent)
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return taken_items
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else
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mcl_log("No need to save")
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end
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end
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end
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end
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return false
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end
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-- Minecart with Hopper
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mod.register_minecart({
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itemstring = "mcl_minecarts:hopper_minecart",
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craft = {
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output = "mcl_minecarts:hopper_minecart",
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recipe = {
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{"mcl_hoppers:hopper"},
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{"mcl_minecarts:minecart"},
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},
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},
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entity_id = "mcl_minecarts:hopper_minecart",
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description = S("Minecart with Hopper"),
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tt_help = nil,
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longdesc = nil,
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usagehelp = nil,
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initial_properties = {
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mesh = "mcl_minecarts_minecart_hopper.b3d",
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textures = {
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"mcl_hoppers_hopper_inside.png",
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"mcl_minecarts_minecart.png",
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"mcl_hoppers_hopper_outside.png",
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"mcl_hoppers_hopper_top.png",
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},
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},
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icon = "mcl_minecarts_minecart_hopper.png",
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drop = {"mcl_minecarts:minecart", "mcl_hoppers:hopper"},
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groups = { container = 1 },
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on_rightclick = nil,
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on_activate_by_rail = nil,
|
||||
_mcl_minecarts_on_enter = function(self, pos)
|
||||
local staticdata = self._staticdata
|
||||
if (staticdata.hopper_delay or 0) > 0 then
|
||||
return
|
||||
end
|
||||
|
||||
-- try to pull from containers into our inventory
|
||||
local inv = mcl_entity_invs.load_inv(self,5)
|
||||
local above_pos = pos + vector.new(0,1,0)
|
||||
mcl_util.hopper_pull_to_inventory(inv, 'main', above_pos, pos)
|
||||
|
||||
staticdata.hopper_delay = (staticdata.hopper_delay or 0) + (1/20)
|
||||
end,
|
||||
_mcl_minecarts_on_step = function(self, dtime)
|
||||
hopper_take_item(self, dtime)
|
||||
end,
|
||||
creative = true
|
||||
})
|
||||
mcl_entity_invs.register_inv("mcl_minecarts:hopper_minecart", "Hopper Minecart", 5, false, true)
|
||||
|
||||
|
|
@ -0,0 +1,123 @@
|
|||
local modname = minetest.get_current_modname()
|
||||
local modpath = minetest.get_modpath(modname)
|
||||
local mod = mcl_minecarts
|
||||
local S = minetest.get_translator(modname)
|
||||
|
||||
-- Minecart with TNT
|
||||
local function activate_tnt_minecart(self, timer)
|
||||
if self._boomtimer then
|
||||
return
|
||||
end
|
||||
if timer then
|
||||
self._boomtimer = timer
|
||||
else
|
||||
self._boomtimer = tnt.BOOMTIMER
|
||||
end
|
||||
self.object:set_properties({textures = {
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_minecarts_minecart.png",
|
||||
}})
|
||||
self._blinktimer = tnt.BLINKTIMER
|
||||
minetest.sound_play("tnt_ignite", {pos = self.object:get_pos(), gain = 1.0, max_hear_distance = 15}, true)
|
||||
end
|
||||
mod.register_minecart({
|
||||
itemstring = "mcl_minecarts:tnt_minecart",
|
||||
craft = {
|
||||
output = "mcl_minecarts:tnt_minecart",
|
||||
recipe = {
|
||||
{"mcl_tnt:tnt"},
|
||||
{"mcl_minecarts:minecart"},
|
||||
},
|
||||
},
|
||||
entity_id = "mcl_minecarts:tnt_minecart",
|
||||
description = S("Minecart with TNT"),
|
||||
tt_help = S("Vehicle for fast travel on rails").."\n"..S("Can be ignited by tools or powered activator rail"),
|
||||
longdesc = S("A minecart with TNT is an explosive vehicle that travels on rail."),
|
||||
usagehelp = S("Place it on rails. Punch it to move it. The TNT is ignited with a flint and steel or when the minecart is on an powered activator rail.") .. "\n" ..
|
||||
S("To obtain the minecart and TNT, punch them while holding down the sneak key. You can't do this if the TNT was ignited."),
|
||||
initial_properties = {
|
||||
mesh = "mcl_minecarts_minecart_block.b3d",
|
||||
textures = {
|
||||
"default_tnt_top.png",
|
||||
"default_tnt_bottom.png",
|
||||
"default_tnt_side.png",
|
||||
"default_tnt_side.png",
|
||||
"default_tnt_side.png",
|
||||
"default_tnt_side.png",
|
||||
"mcl_minecarts_minecart.png",
|
||||
},
|
||||
},
|
||||
icon = "mcl_minecarts_minecart_tnt.png",
|
||||
drop = {"mcl_minecarts:minecart", "mcl_tnt:tnt"},
|
||||
on_rightclick = function(self, clicker)
|
||||
-- Ingite
|
||||
if not clicker or not clicker:is_player() then
|
||||
return
|
||||
end
|
||||
if self._boomtimer then
|
||||
return
|
||||
end
|
||||
local held = clicker:get_wielded_item()
|
||||
if held:get_name() == "mcl_fire:flint_and_steel" then
|
||||
if not minetest.is_creative_enabled(clicker:get_player_name()) then
|
||||
held:add_wear(65535/65) -- 65 uses
|
||||
local index = clicker:get_wield_index()
|
||||
local inv = clicker:get_inventory()
|
||||
inv:set_stack("main", index, held)
|
||||
end
|
||||
activate_tnt_minecart(self)
|
||||
end
|
||||
end,
|
||||
on_activate_by_rail = activate_tnt_minecart,
|
||||
creative = true,
|
||||
_mcl_minecarts_on_step = function(self, dtime)
|
||||
-- Update TNT stuff
|
||||
if self._boomtimer then
|
||||
-- Explode
|
||||
self._boomtimer = self._boomtimer - dtime
|
||||
local pos = self.object:get_pos()
|
||||
if self._boomtimer <= 0 then
|
||||
self.object:remove()
|
||||
mcl_explosions.explode(pos, 6, { drop_chance = 1.0 })
|
||||
return
|
||||
else
|
||||
tnt.smoke_step(pos)
|
||||
end
|
||||
end
|
||||
if self._blinktimer then
|
||||
self._blinktimer = self._blinktimer - dtime
|
||||
if self._blinktimer <= 0 then
|
||||
self._blink = not self._blink
|
||||
if self._blink then
|
||||
self.object:set_properties({textures =
|
||||
{
|
||||
"default_tnt_top.png",
|
||||
"default_tnt_bottom.png",
|
||||
"default_tnt_side.png",
|
||||
"default_tnt_side.png",
|
||||
"default_tnt_side.png",
|
||||
"default_tnt_side.png",
|
||||
"mcl_minecarts_minecart.png",
|
||||
}})
|
||||
else
|
||||
self.object:set_properties({textures =
|
||||
{
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_tnt_blink.png",
|
||||
"mcl_minecarts_minecart.png",
|
||||
}})
|
||||
end
|
||||
self._blinktimer = tnt.BLINKTIMER
|
||||
end
|
||||
end
|
||||
end,
|
||||
})
|
||||
|
|
@ -312,3 +312,48 @@ function mcl_minecarts:get_rail_direction(pos_, dir, ctrl, old_switch, railtype)
|
|||
|
||||
return dir
|
||||
end
|
||||
function mcl_minecarts:update_cart_orientation()
|
||||
local staticdata = self._staticdata
|
||||
|
||||
-- constants
|
||||
local _2_pi = math.pi * 2
|
||||
local pi = math.pi
|
||||
local dir = staticdata.dir
|
||||
|
||||
-- Calculate an angle from the x,z direction components
|
||||
local rot_y = math.atan2( dir.x, dir.z ) + ( staticdata.rot_adjust or 0 )
|
||||
if rot_y < 0 then
|
||||
rot_y = rot_y + _2_pi
|
||||
end
|
||||
|
||||
-- Check if the rotation is a 180 flip and don't change if so
|
||||
local rot = self.object:get_rotation()
|
||||
local diff = math.abs((rot_y - ( rot.y + pi ) % _2_pi) )
|
||||
if diff < 0.001 or diff > _2_pi - 0.001 then
|
||||
-- Update rotation adjust and recalculate the rotation
|
||||
staticdata.rot_adjust = ( ( staticdata.rot_adjust or 0 ) + pi ) % _2_pi
|
||||
rot.y = math.atan2( dir.x, dir.z ) + ( staticdata.rot_adjust or 0 )
|
||||
else
|
||||
rot.y = rot_y
|
||||
end
|
||||
|
||||
-- Forward/backwards tilt (pitch)
|
||||
if dir.y < 0 then
|
||||
rot.x = -0.25 * pi
|
||||
elseif dir.y > 0 then
|
||||
rot.x = 0.25 * pi
|
||||
else
|
||||
rot.x = 0
|
||||
end
|
||||
|
||||
if ( staticdata.rot_adjust or 0 ) < 0.01 then
|
||||
rot.x = -rot.x
|
||||
end
|
||||
if dir.z ~= 0 then
|
||||
rot.x = -rot.x
|
||||
end
|
||||
|
||||
self.object:set_rotation(rot)
|
||||
end
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -1,11 +1,14 @@
|
|||
local modname = minetest.get_current_modname()
|
||||
|
||||
local modpath = minetest.get_modpath(modname)
|
||||
mcl_minecarts = {}
|
||||
local mod = mcl_minecarts
|
||||
mcl_minecarts.modpath = minetest.get_modpath(modname)
|
||||
mcl_minecarts.modpath = modpath
|
||||
|
||||
-- Constants
|
||||
mcl_minecarts.speed_max = 10
|
||||
mcl_minecarts.check_float_time = 15
|
||||
mcl_minecarts.FRICTION = 0.4
|
||||
|
||||
dofile(mcl_minecarts.modpath.."/functions.lua")
|
||||
dofile(mcl_minecarts.modpath.."/rails.lua")
|
||||
dofile(mcl_minecarts.modpath.."/carts.lua")
|
||||
for _,filename in pairs({"functions","rails","train","storage","carts"}) do
|
||||
dofile(modpath.."/"..filename..".lua")
|
||||
end
|
||||
|
|
|
|||
|
|
@ -0,0 +1,496 @@
|
|||
local modname = minetest.get_current_modname()
|
||||
local modpath = minetest.get_modpath(modname)
|
||||
local mod = mcl_minecarts
|
||||
local S = minetest.get_translator(modname)
|
||||
|
||||
-- Constants
|
||||
local DEBUG = false
|
||||
local friction = mcl_minecarts.FRICTION
|
||||
|
||||
-- Imports
|
||||
local train_length = mod.train_length
|
||||
local update_train = mod.update_train
|
||||
local update_cart_orientation = mod.update_cart_orientation
|
||||
local get_cart_data = mod.get_cart_data
|
||||
|
||||
local function detach_minecart(self)
|
||||
local staticdata = self._staticdata
|
||||
|
||||
staticdata.connected_at = nil
|
||||
self.object:set_velocity(staticdata.dir * staticdata.velocity)
|
||||
end
|
||||
mod.detach_minecart = detach_minecart
|
||||
|
||||
local function try_detach_minecart(self)
|
||||
local staticdata = self._staticdata
|
||||
|
||||
local node = minetest.get_node(staticdata.connected_at)
|
||||
if minetest.get_item_group(node.name, "rail") == 0 then
|
||||
detach_minecart(self)
|
||||
end
|
||||
end
|
||||
|
||||
--[[
|
||||
Array of hooks { {u,v,w}, name }
|
||||
Actual position is pos + u * dir + v * right + w * up
|
||||
]]
|
||||
local enter_exit_checks = {
|
||||
{ 0, 0, 0, "" },
|
||||
{ 0, 0, 1, "_above" },
|
||||
{ 0, 0,-1, "_below" },
|
||||
{ 0, 1, 0, "_side" },
|
||||
{ 0,-1, 0, "_side" },
|
||||
}
|
||||
|
||||
local function handle_cart_enter_exit(self, pos, next_dir, event)
|
||||
local staticdata = self._staticdata
|
||||
|
||||
local dir = staticdata.dir
|
||||
local right = vector.new( dir.z, dir.y, -dir.x)
|
||||
local up = vector.new(0,1,0)
|
||||
for _,check in ipairs(enter_exit_checks) do
|
||||
local check_pos = pos + dir * check[1] + right * check[2] + up * check[3]
|
||||
local node = minetest.get_node(check_pos)
|
||||
local node_def = minetest.registered_nodes[node.name]
|
||||
if node_def then
|
||||
-- node-specific hook
|
||||
local hook_name = "_mcl_minecarts_"..event..check[4]
|
||||
local hook = node_def[hook_name]
|
||||
if hook then hook(check_pos, self, next_dir, pos) end
|
||||
|
||||
-- global minecart hook
|
||||
hook = mcl_minecarts[event..check[4]]
|
||||
if hook then hook(check_pos, self, next_dir, node_def) end
|
||||
end
|
||||
end
|
||||
|
||||
-- Handle cart-specific behaviors
|
||||
local hook = self["_mcl_minecarts_"..event]
|
||||
if hook then hook(self, pos) end
|
||||
end
|
||||
local function set_metadata_cart_status(pos, uuid, state)
|
||||
local meta = minetest.get_meta(pos)
|
||||
local carts = minetest.deserialize(meta:get_string("_mcl_minecarts_carts")) or {}
|
||||
carts[uuid] = state
|
||||
meta:set_string("_mcl_minecarts_carts", minetest.serialize(carts))
|
||||
end
|
||||
local function handle_cart_enter(self, pos, next_dir)
|
||||
--print("entering "..tostring(pos))
|
||||
set_metadata_cart_status(pos, self._staticdata.uuid, 1)
|
||||
handle_cart_enter_exit(self, pos, next_dir, "on_enter" )
|
||||
end
|
||||
local function handle_cart_leave(self, pos, next_dir)
|
||||
--print("leaving "..tostring(pos))
|
||||
set_metadata_cart_status(pos, self._staticdata.uuid, nil)
|
||||
handle_cart_enter_exit(self, pos, next_dir, "on_leave" )
|
||||
end
|
||||
local function handle_cart_node_watches(self, dtime)
|
||||
local staticdata = self._staticdata
|
||||
local watches = staticdata.node_watches or {}
|
||||
local new_watches = {}
|
||||
for _,node_pos in ipairs(watches) do
|
||||
local node = minetest.get_node(node_pos)
|
||||
local node_def = minetest.registered_nodes[node.name]
|
||||
if node_def then
|
||||
local hook = node_def._mcl_minecarts_node_on_step
|
||||
if hook and hook(node_pos, self, dtime) then
|
||||
new_watches[#new_watches+1] = node_pos
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
staticdata.node_watches = new_watches
|
||||
end
|
||||
|
||||
local function handle_cart_collision(cart1, prev_pos, next_dir)
|
||||
-- Look ahead one block
|
||||
local pos = vector.add(prev_pos, next_dir)
|
||||
|
||||
local meta = minetest.get_meta(pos)
|
||||
local carts = minetest.deserialize(meta:get_string("_mcl_minecarts_carts")) or {}
|
||||
local cart_uuid = nil
|
||||
local dirty = false
|
||||
for uuid,v in pairs(carts) do
|
||||
-- Clean up dead carts
|
||||
if not get_cart_data(uuid) then
|
||||
carts[uuid] = nil
|
||||
dirty = true
|
||||
uuid = nil
|
||||
end
|
||||
|
||||
if uuid and uuid ~= cart1._staticdata.uuid then cart_uuid = uuid end
|
||||
end
|
||||
if dirty then
|
||||
meta:set_string("_mcl_minecarts_carts",minetest.serialize(carts))
|
||||
end
|
||||
|
||||
local meta = minetest.get_meta(vector.add(pos,next_dir))
|
||||
if not cart_uuid then return end
|
||||
minetest.log("action","cart #"..cart1._staticdata.uuid.." collided with cart #"..cart_uuid.." at "..tostring(pos))
|
||||
|
||||
local cart2_aoid = mcl_util.get_active_object_id_from_uuid(cart_uuid)
|
||||
local cart2 = minetest.luaentities[cart2_aoid]
|
||||
if not cart2 then return end
|
||||
|
||||
-- Standard Collision Handling
|
||||
local cart1_staticdata = cart1._staticdata
|
||||
local cart2_staticdata = cart2._staticdata
|
||||
|
||||
local u1 = cart1_staticdata.velocity
|
||||
local u2 = cart2_staticdata.velocity
|
||||
local m1 = cart1_staticdata.mass
|
||||
local m2 = cart2_staticdata.mass
|
||||
|
||||
if u2 == 0 and u1 < 1 and train_length(cart1) < 3 then
|
||||
-- Link carts
|
||||
cart2_staticdata.behind = cart1_staticdata.uuid
|
||||
cart1_staticdata.ahead = cart1_staticdata.uuid
|
||||
cart2_staticdata.velocity = cart1_staticdata.velocity
|
||||
return
|
||||
end
|
||||
|
||||
-- Calculate new velocities according to https://en.wikipedia.org/wiki/Elastic_collision#One-dimensional_Newtonian
|
||||
local c1 = m1 + m2
|
||||
local d = m1 - m2
|
||||
local v1 = ( d * u1 + 2 * m2 * u2 ) / c1
|
||||
local v2 = ( 2 * m1 * u1 + d * u2 ) / c1
|
||||
|
||||
cart1_staticdata.velocity = v1
|
||||
cart2_staticdata.velocity = v2
|
||||
|
||||
-- Force the other cart to move the same direction this one was
|
||||
cart2_staticdata.dir = mcl_minecarts:get_rail_direction(cart2_staticdata.connected_at, cart1_staticdata.dir)
|
||||
end
|
||||
|
||||
|
||||
local function vector_away_from_players(self, staticdata)
|
||||
local objs = minetest.get_objects_inside_radius(self.object:get_pos(), 1.1)
|
||||
for n=1,#objs do
|
||||
local obj = objs[n]
|
||||
local player_name = obj:get_player_name()
|
||||
if player_name and player_name ~= "" and not ( self._driver and self._driver == player_name ) then
|
||||
return obj:get_pos() - self.object:get_pos()
|
||||
end
|
||||
end
|
||||
|
||||
return nil
|
||||
end
|
||||
|
||||
local function direction_away_from_players(self, staticdata)
|
||||
local diff = vector_away_from_players(self, staticdata)
|
||||
if not diff then return 0 end
|
||||
|
||||
local length = vector.distance(vector.new(0,0,0),diff)
|
||||
local vec = diff / length
|
||||
local force = vector.dot( vec, vector.normalize(staticdata.dir) )
|
||||
|
||||
-- Check if this would push past the end of the track and don't move it it would
|
||||
-- This prevents an oscillation that would otherwise occur
|
||||
local dir = staticdata.dir
|
||||
if force > 0 then
|
||||
dir = -dir
|
||||
end
|
||||
if mcl_minecarts:is_rail( staticdata.connected_at + dir ) then
|
||||
if force > 0.5 then
|
||||
return -length * 4
|
||||
elseif force < -0.5 then
|
||||
return length * 4
|
||||
end
|
||||
end
|
||||
return 0
|
||||
end
|
||||
|
||||
local function calculate_acceleration(self, staticdata)
|
||||
local acceleration = 0
|
||||
|
||||
-- Fix up movement data
|
||||
staticdata.velocity = staticdata.velocity or 0
|
||||
|
||||
-- Apply friction if moving
|
||||
if staticdata.velocity > 0 then
|
||||
acceleration = -friction
|
||||
end
|
||||
|
||||
local pos = staticdata.connected_at
|
||||
local node_name = minetest.get_node(pos).name
|
||||
local node_def = minetest.registered_nodes[node_name]
|
||||
local max_vel = mcl_minecarts.speed_max
|
||||
|
||||
if self._go_forward then
|
||||
acceleration = 4
|
||||
elseif self._brake then
|
||||
acceleration = -1.5
|
||||
elseif (staticdata.fueltime or 0) > 0 and staticdata.velocity <= 4 then
|
||||
acceleration = 0.6
|
||||
elseif staticdata.velocity >= ( node_def._max_acceleration_velocity or max_vel ) then
|
||||
-- Standard friction
|
||||
elseif node_def and node_def._rail_acceleration then
|
||||
acceleration = node_def._rail_acceleration * 4
|
||||
end
|
||||
|
||||
-- Factor in gravity after everything else
|
||||
local gravity_strength = 2.45 --friction * 5
|
||||
if staticdata.dir.y < 0 then
|
||||
acceleration = gravity_strength - friction
|
||||
elseif staticdata.dir.y > 0 then
|
||||
acceleration = -gravity_strength + friction
|
||||
end
|
||||
|
||||
return acceleration
|
||||
end
|
||||
|
||||
local function reverse_direction(self, staticdata)
|
||||
-- Complete moving thru this block into the next, reverse direction, and put us back at the same position we were at
|
||||
local next_dir = -staticdata.dir
|
||||
staticdata.connected_at = staticdata.connected_at + staticdata.dir
|
||||
staticdata.distance = 1 - staticdata.distance
|
||||
|
||||
-- recalculate direction
|
||||
local next_dir,_ = mcl_minecarts:get_rail_direction(staticdata.connected_at, next_dir, nil, nil, staticdata.railtype)
|
||||
staticdata.dir = next_dir
|
||||
end
|
||||
|
||||
local function do_movement_step(self, dtime)
|
||||
local staticdata = self._staticdata
|
||||
if not staticdata.connected_at then return 0 end
|
||||
|
||||
-- Calculate timestep remaiing in this block
|
||||
local x_0 = staticdata.distance or 0
|
||||
local remaining_in_block = 1 - x_0
|
||||
local a = calculate_acceleration(self, staticdata)
|
||||
local v_0 = staticdata.velocity
|
||||
|
||||
-- Repel minecarts
|
||||
local away = direction_away_from_players(self, staticdata)
|
||||
if away > 0 then
|
||||
v_0 = away
|
||||
elseif away < 0 then
|
||||
reverse_direction(self, staticdata)
|
||||
v_0 = -away
|
||||
end
|
||||
|
||||
if DEBUG and ( v_0 > 0 or a ~= 0 ) then
|
||||
print( " cart "..tostring(staticdata.uuid)..
|
||||
": a="..tostring(a)..
|
||||
",v_0="..tostring(v_0)..
|
||||
",x_0="..tostring(x_0)..
|
||||
",timestep="..tostring(timestep)..
|
||||
",dir="..tostring(staticdata.dir)..
|
||||
",connected_at="..tostring(staticdata.connected_at)..
|
||||
",distance="..tostring(staticdata.distance)
|
||||
)
|
||||
end
|
||||
|
||||
-- Not moving
|
||||
if a == 0 and v_0 == 0 then return 0 end
|
||||
|
||||
-- Movement equation with acceleration: x_1 = x_0 + v_0 * t + 0.5 * a * t*t
|
||||
local timestep
|
||||
local stops_in_block = false
|
||||
local inside = v_0 * v_0 + 2 * a * remaining_in_block
|
||||
if inside < 0 then
|
||||
-- Would stop or reverse direction inside this block, calculate time to v_1 = 0
|
||||
timestep = -v_0 / a
|
||||
stops_in_block = true
|
||||
elseif a ~= 0 then
|
||||
-- Setting x_1 = x_0 + remaining_in_block, and solving for t gives:
|
||||
timestep = ( math.sqrt( v_0 * v_0 + 2 * a * remaining_in_block) - v_0 ) / a
|
||||
else
|
||||
timestep = remaining_in_block / v_0
|
||||
end
|
||||
|
||||
-- Truncate timestep to remaining time delta
|
||||
if timestep > dtime then
|
||||
timestep = dtime
|
||||
end
|
||||
|
||||
-- Truncate timestep to prevent v_1 from being larger that speed_max
|
||||
local v_max = mcl_minecarts.speed_max
|
||||
if (v_0 ~= v_max) and ( v_0 + a * timestep > v_max) then
|
||||
timestep = ( v_max - v_0 ) / a
|
||||
end
|
||||
|
||||
-- Prevent infinite loops
|
||||
if timestep <= 0 then return 0 end
|
||||
|
||||
-- Calculate v_1 taking v_max into account
|
||||
local v_1 = v_0 + a * timestep
|
||||
if v_1 > v_max then
|
||||
v_1 = v_max
|
||||
elseif v_1 < friction / 5 then
|
||||
v_1 = 0
|
||||
end
|
||||
|
||||
-- Calculate x_1
|
||||
local x_1 = x_0 + timestep * v_0 + 0.5 * a * timestep * timestep
|
||||
|
||||
-- Update position and velocity of the minecart
|
||||
staticdata.velocity = v_1
|
||||
staticdata.distance = x_1
|
||||
|
||||
if DEBUG and (1==0) and ( v_0 > 0 or a ~= 0 ) then
|
||||
print( "- cart #"..tostring(staticdata.uuid)..
|
||||
": a="..tostring(a)..
|
||||
",v_0="..tostring(v_0)..
|
||||
",v_1="..tostring(v_1)..
|
||||
",x_0="..tostring(x_0)..
|
||||
",x_1="..tostring(x_1)..
|
||||
",timestep="..tostring(timestep)..
|
||||
",dir="..tostring(staticdata.dir)..
|
||||
",connected_at="..tostring(staticdata.connected_at)..
|
||||
",distance="..tostring(staticdata.distance)
|
||||
)
|
||||
end
|
||||
|
||||
-- Entity movement
|
||||
local pos = staticdata.connected_at
|
||||
|
||||
-- Handle movement to next block, account for loss of precision in calculations
|
||||
if x_1 >= 0.99 then
|
||||
staticdata.distance = 0
|
||||
|
||||
-- Anchor at the next node
|
||||
local old_pos = pos
|
||||
pos = pos + staticdata.dir
|
||||
staticdata.connected_at = pos
|
||||
|
||||
-- Get the next direction
|
||||
local next_dir,_ = mcl_minecarts:get_rail_direction(pos, staticdata.dir, nil, nil, staticdata.railtype)
|
||||
if DEBUG and next_dir ~= staticdata.dir then
|
||||
print( "Changing direction from "..tostring(staticdata.dir).." to "..tostring(next_dir))
|
||||
end
|
||||
|
||||
-- Handle cart collisions
|
||||
handle_cart_collision(self, pos, next_dir)
|
||||
|
||||
-- Leave the old node
|
||||
handle_cart_leave(self, old_pos, next_dir )
|
||||
|
||||
-- Enter the new node
|
||||
handle_cart_enter(self, pos, next_dir)
|
||||
|
||||
try_detach_minecart(self)
|
||||
|
||||
-- Handle end of track
|
||||
if next_dir == staticdata.dir * -1 and next_dir.y == 0 then
|
||||
if DEBUG then print("Stopping cart at end of track at "..tostring(pos)) end
|
||||
staticdata.velocity = 0
|
||||
end
|
||||
|
||||
-- Update cart direction
|
||||
staticdata.dir = next_dir
|
||||
elseif stops_in_block and v_1 < (friction/5) and a <= 0 then
|
||||
-- Handle direction flip due to gravity
|
||||
if DEBUG then print("Gravity flipped direction") end
|
||||
|
||||
-- Velocity should be zero at this point
|
||||
staticdata.velocity = 0
|
||||
|
||||
reverse_direction(self, staticdata)
|
||||
|
||||
-- Intermediate movement
|
||||
pos = staticdata.connected_at + staticdata.dir * staticdata.distance
|
||||
else
|
||||
-- Intermediate movement
|
||||
pos = pos + staticdata.dir * staticdata.distance
|
||||
end
|
||||
|
||||
self.object:move_to(pos)
|
||||
|
||||
-- Update cart orientation
|
||||
update_cart_orientation(self)
|
||||
|
||||
-- Debug reporting
|
||||
if DEBUG and ( v_0 > 0 or v_1 > 0 ) then
|
||||
print( " cart #"..tostring(staticdata.uuid)..
|
||||
": a="..tostring(a)..
|
||||
",v_0="..tostring(v_0)..
|
||||
",v_1="..tostring(v_1)..
|
||||
",x_0="..tostring(x_0)..
|
||||
",x_1="..tostring(x_1)..
|
||||
",timestep="..tostring(timestep)..
|
||||
",dir="..tostring(staticdata.dir)..
|
||||
",pos="..tostring(pos)..
|
||||
",connected_at="..tostring(staticdata.connected_at)..
|
||||
",distance="..tostring(staticdata.distance)
|
||||
)
|
||||
end
|
||||
|
||||
-- Report the amount of time processed
|
||||
return dtime - timestep
|
||||
end
|
||||
|
||||
local function do_movement( self, dtime )
|
||||
local staticdata = self._staticdata
|
||||
|
||||
-- Allow the carts to be delay for the rest of the world to react before moving again
|
||||
if ( staticdata.delay or 0 ) > dtime then
|
||||
staticdata.delay = staticdata.delay - dtime
|
||||
return
|
||||
else
|
||||
staticdata.delay = 0
|
||||
end
|
||||
|
||||
-- Break long movements at block boundaries to make it
|
||||
-- it impossible to jump across gaps due to server lag
|
||||
-- causing large timesteps
|
||||
while dtime > 0 do
|
||||
local new_dtime = do_movement_step(self, dtime)
|
||||
|
||||
update_train(self)
|
||||
|
||||
-- Handle node watches here in steps to prevent server lag from changing behavior
|
||||
handle_cart_node_watches(self, dtime - new_dtime)
|
||||
|
||||
dtime = new_dtime
|
||||
end
|
||||
end
|
||||
|
||||
local function do_detached_movement(self, dtime)
|
||||
local staticdata = self._staticdata
|
||||
|
||||
-- Make sure the object is still valid before trying to move it
|
||||
if not self.object or not self.object:get_pos() then return end
|
||||
|
||||
-- Apply physics
|
||||
if mcl_physics then
|
||||
mcl_physics.apply_entity_environmental_physics(self)
|
||||
else
|
||||
-- Simple physics
|
||||
local friction = self.object:get_velocity() or vector.new(0,0,0)
|
||||
friction.y = 0
|
||||
|
||||
local accel = vector.new(0,-9.81,0) -- gravity
|
||||
accel = vector.add(accel, vector.multiply(friction,-0.9))
|
||||
self.object:set_acceleration(accel)
|
||||
end
|
||||
|
||||
local away = vector_away_from_players(self, staticdata)
|
||||
if away then
|
||||
local v = self.object:get_velocity()
|
||||
self.object:set_velocity(v - away)
|
||||
end
|
||||
|
||||
-- Try to reconnect to rail
|
||||
local pos_r = vector.round(self.object:get_pos())
|
||||
local node = minetest.get_node(pos_r)
|
||||
if minetest.get_item_group(node.name, "rail") ~= 0 then
|
||||
staticdata.connected_at = pos_r
|
||||
staticdata.railtype = node.name
|
||||
|
||||
local freebody_velocity = self.object:get_velocity()
|
||||
staticdata.dir = mod:get_rail_direction(pos_r, mod.snap_direction(freebody_velocity))
|
||||
|
||||
-- Use vector projection to only keep the velocity in the new direction of movement on the rail
|
||||
-- https://en.wikipedia.org/wiki/Vector_projection
|
||||
staticdata.velocity = vector.dot(staticdata.dir,freebody_velocity)
|
||||
|
||||
-- Clear freebody movement
|
||||
self.object:set_velocity(vector.new(0,0,0))
|
||||
self.object:set_acceleration(vector.new(0,0,0))
|
||||
end
|
||||
end
|
||||
|
||||
--return do_movement, do_detatched_movement
|
||||
return do_movement,do_detached_movement,handle_cart_enter
|
||||
|
||||
|
|
@ -188,7 +188,7 @@ function mod.register_rail(itemstring, ndef)
|
|||
if not ndef.inventory_image then ndef.inventory_image = ndef.tiles[1] end
|
||||
if not ndef.wield_image then ndef.wield_image = ndef.tiles[1] end
|
||||
|
||||
print("registering rail "..itemstring.." with definition: "..dump(ndef))
|
||||
--print("registering rail "..itemstring.." with definition: "..dump(ndef))
|
||||
|
||||
-- Make registrations
|
||||
minetest.register_node(itemstring, ndef)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,37 @@
|
|||
local storage = minetest.get_mod_storage()
|
||||
local mod = mcl_minecarts
|
||||
|
||||
local cart_data = {}
|
||||
local cart_data_fail_cache = {}
|
||||
|
||||
function mod.get_cart_data(uuid)
|
||||
if cart_data[uuid] then return cart_data[uuid] end
|
||||
if cart_data_fail_cache[uuid] then return nil end
|
||||
|
||||
local data = minetest.deserialize(storage:get_string("cart-"..uuid))
|
||||
if not data then
|
||||
cart_data_fail_cache[uuid] = true
|
||||
return nil
|
||||
end
|
||||
|
||||
cart_data[uuid] = data
|
||||
return data
|
||||
end
|
||||
local function save_cart_data(uuid)
|
||||
if not cart_data[uuid] then return end
|
||||
storage:set_string("cart-"..uuid,minetest.serialize(cart_data[uuid]))
|
||||
end
|
||||
mod.save_cart_data = save_cart_data
|
||||
|
||||
function mod.update_cart_data(data)
|
||||
local uuid = data.uuid
|
||||
cart_data[uuid] = data
|
||||
cart_data_fail_cache[uuid] = nil
|
||||
save_cart_data(uuid)
|
||||
end
|
||||
function mod.destroy_cart_data(uuid)
|
||||
storage:set_string("cart-"..uuid,"")
|
||||
cart_data[uuid] = nil
|
||||
cart_data_fail_cache[uuid] = true
|
||||
end
|
||||
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
function mcl_minecarts.update_train(cart)
|
||||
end
|
||||
|
||||
function mcl_minecarts.train_length(cart)
|
||||
end
|
||||
Loading…
Reference in New Issue