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MineClone2/mods/ENTITIES/mcl_item_entity/init.lua

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Lua

--basic settings
local item_drop_settings = {} --settings table
item_drop_settings.age = 1 --how old an item has to be before collecting
item_drop_settings.radius_magnet = 2 --radius of item magnet
item_drop_settings.radius_collect = 0.1 --radius of collection
item_drop_settings.player_collect_height = 1.5 --added to their pos y value
item_drop_settings.collection_safety = false --do this to prevent items from flying away on laggy servers
item_drop_settings.collect_by_default = true --make item entities automatically collect in the item entity code
--versus setting it in the item drop code, setting true might interfere with
--mods that use item entities (like pipeworks)
item_drop_settings.random_item_velocity = true --this sets random item velocity if velocity is 0
item_drop_settings.drop_single_item = false --if true, the drop control drops 1 item instead of the entire stack, and sneak+drop drops the stack
-- drop_single_item is disabled by default because it is annoying to throw away items from the intentory screen
minetest.register_globalstep(function(dtime)
for _,player in ipairs(minetest.get_connected_players()) do
if player:get_hp() > 0 or not minetest.setting_getbool("enable_damage") then
local pos = player:getpos()
local inv = player:get_inventory()
--collection
for _,object in ipairs(minetest.get_objects_inside_radius({x=pos.x,y=pos.y + item_drop_settings.player_collect_height,z=pos.z}, item_drop_settings.radius_collect)) do
if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
if object:get_luaentity().collect and object:get_luaentity().age > item_drop_settings.age then
if inv and inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
if object:get_luaentity().itemstring ~= "" then
inv:add_item("main", ItemStack(object:get_luaentity().itemstring))
minetest.sound_play("item_drop_pickup", {
pos = pos,
max_hear_distance = 100,
gain = 10.0,
})
object:get_luaentity().itemstring = ""
object:remove()
end
end
end
end
end
--magnet
for _,object in ipairs(minetest.get_objects_inside_radius({x=pos.x,y=pos.y + item_drop_settings.player_collect_height,z=pos.z}, item_drop_settings.radius_magnet)) do
if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
if object:get_luaentity().collect and object:get_luaentity().age > item_drop_settings.age then
if inv and inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
--modified simplemobs api
local pos1 = pos
local pos2 = object:getpos()
local vec = {x=pos1.x-pos2.x, y=(pos1.y+item_drop_settings.player_collect_height)-pos2.y, z=pos1.z-pos2.z}
vec.x = pos2.x + (vec.x/3)
vec.y = pos2.y + (vec.y/3)
vec.z = pos2.z + (vec.z/3)
object:moveto(vec)
object:get_luaentity().physical_state = false
object:get_luaentity().object:set_properties({
physical = false
})
--fix eternally falling items
minetest.after(0, function()
object:setacceleration({x=0, y=0, z=0})
end)
--this is a safety to prevent items flying away on laggy servers
if item_drop_settings.collection_safety == true then
if object:get_luaentity().init ~= true then
object:get_luaentity().init = true
minetest.after(1, function(args)
local lua = object:get_luaentity()
if object == nil or lua == nil or lua.itemstring == nil then
return
end
if inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
inv:add_item("main", ItemStack(object:get_luaentity().itemstring))
if object:get_luaentity().itemstring ~= "" then
minetest.sound_play("item_drop_pickup", {
pos = pos,
max_hear_distance = 100,
gain = 10.0,
})
end
object:get_luaentity().itemstring = ""
object:remove()
else
object:setvelocity({x=0,y=0,z=0})
object:get_luaentity().physical_state = true
object:get_luaentity().object:set_properties({
physical = true
})
end
end, {player, object})
end
end
end
end
end
end
end
end
end)
function minetest.handle_node_drops(pos, drops, digger)
local inv
if minetest.setting_getbool("creative_mode") and digger and digger:is_player() then
inv = digger:get_inventory()
end
for _,item in ipairs(drops) do
local count, name
if type(item) == "string" then
count = 1
name = item
else
count = item:get_count()
name = item:get_name()
end
if not inv or not inv:contains_item("main", ItemStack(name)) then
for i=1,count do
local obj = minetest.add_item(pos, name)
if obj ~= nil then
obj:get_luaentity().collect = true
local x = math.random(1, 5)
if math.random(1,2) == 1 then
x = -x
end
local z = math.random(1, 5)
if math.random(1,2) == 1 then
z = -z
end
obj:setvelocity({x=1/x, y=obj:getvelocity().y, z=1/z})
obj:get_luaentity().age = 0.6
end
end
end
end
end
if item_drop_settings.drop_single_item then
-- Drop single items by default
function minetest.item_drop(itemstack, dropper, pos)
if dropper and dropper:is_player() then
local v = dropper:get_look_dir()
local p = {x=pos.x, y=pos.y+1.2, z=pos.z}
local cs = 1
if dropper:get_player_control().sneak then
cs = itemstack:get_count()
end
local item = itemstack:take_item(cs)
local obj = core.add_item(p, item)
if obj then
v.x = v.x*4
v.y = v.y*4 + 2
v.z = v.z*4
obj:setvelocity(v)
obj:get_luaentity().collect = true
return itemstack
end
end
end
end
--modify builtin:item
local time_to_live = tonumber(core.setting_get("item_entity_ttl"))
if not time_to_live then
time_to_live = 900
end
core.register_entity(":__builtin:item", {
initial_properties = {
hp_max = 1,
physical = true,
collide_with_objects = false,
collisionbox = {-0.3, -0.3, -0.3, 0.3, 0.3, 0.3},
visual = "wielditem",
visual_size = {x = 0.4, y = 0.4},
textures = {""},
spritediv = {x = 1, y = 1},
initial_sprite_basepos = {x = 0, y = 0},
is_visible = false,
infotext = "",
},
itemstring = '',
physical_state = true,
age = 0,
set_item = function(self, itemstring)
self.itemstring = itemstring
local stack = ItemStack(itemstring)
local count = stack:get_count()
local max_count = stack:get_stack_max()
if count > max_count then
count = max_count
self.itemstring = stack:get_name().." "..max_count
end
local s = 0.2 + 0.1 * (count / max_count)
local c = s
local itemtable = stack:to_table()
local itemname = nil
local description = ""
if itemtable then
itemname = stack:to_table().name
end
local item_texture = nil
local item_type = ""
if core.registered_items[itemname] then
item_texture = core.registered_items[itemname].inventory_image
item_type = core.registered_items[itemname].type
description = core.registered_items[itemname].description
end
local prop = {
is_visible = true,
visual = "wielditem",
textures = {itemname},
visual_size = {x = s, y = s},
collisionbox = {-c, -c, -c, c, c, c},
automatic_rotate = math.pi * 0.5,
infotext = description,
}
self.object:set_properties(prop)
if item_drop_settings.collect_by_default then
self.collect = true
end
if item_drop_settings.random_item_velocity == true then
minetest.after(0, function()
local vel = self.object:getvelocity()
if vel and vel.x == 0 and vel.z == 0 then
local x = math.random(1, 5)
if math.random(1,2) == 1 then
x = -x
end
local z = math.random(1, 5)
if math.random(1,2) == 1 then
z = -z
end
local y = math.random(2,4)
self.object:setvelocity({x=1/x, y=y, z=1/z})
end
end)
end
end,
get_staticdata = function(self)
return core.serialize({
itemstring = self.itemstring,
always_collect = self.always_collect,
age = self.age,
dropped_by = self.dropped_by,
collect = self.collect
})
end,
on_activate = function(self, staticdata, dtime_s)
if string.sub(staticdata, 1, string.len("return")) == "return" then
local data = core.deserialize(staticdata)
if data and type(data) == "table" then
self.itemstring = data.itemstring
self.always_collect = data.always_collect
if data.age then
self.age = data.age + dtime_s
else
self.age = dtime_s
end
--remember collection data
if data.collect then
self.collect = data.collect
end
self.dropped_by = data.dropped_by
end
else
self.itemstring = staticdata
end
self.object:set_armor_groups({immortal = 1})
self.object:setvelocity({x = 0, y = 2, z = 0})
self.object:setacceleration({x = 0, y = -10, z = 0})
self:set_item(self.itemstring)
end,
try_merge_with = function(self, own_stack, object, obj)
local stack = ItemStack(obj.itemstring)
if own_stack:get_name() == stack:get_name() and stack:get_free_space() > 0 then
local overflow = false
local count = stack:get_count() + own_stack:get_count()
local max_count = stack:get_stack_max()
if count > max_count then
overflow = true
count = count - max_count
else
self.itemstring = ''
end
local pos = object:getpos()
pos.y = pos.y + (count - stack:get_count()) / max_count * 0.15
object:moveto(pos, false)
local s, c
local max_count = stack:get_stack_max()
local name = stack:get_name()
if not overflow then
obj.itemstring = name .. " " .. count
s = 0.2 + 0.1 * (count / max_count)
c = s
object:set_properties({
visual_size = {x = s, y = s},
collisionbox = {-c, -c, -c, c, c, c}
})
self.object:remove()
-- merging succeeded
return true
else
s = 0.4
c = 0.3
object:set_properties({
visual_size = {x = s, y = s},
collisionbox = {-c, -c, -c, c, c, c}
})
obj.itemstring = name .. " " .. max_count
s = 0.2 + 0.1 * (count / max_count)
c = s
self.object:set_properties({
visual_size = {x = s, y = s},
collisionbox = {-c, -c, -c, c, c, c}
})
self.itemstring = name .. " " .. count
end
end
-- merging didn't succeed
return false
end,
on_step = function(self, dtime)
self.age = self.age + dtime
if time_to_live > 0 and self.age > time_to_live then
self.itemstring = ''
self.object:remove()
return
end
local p = self.object:getpos()
local node = core.get_node_or_nil(p)
local in_unloaded = (node == nil)
if in_unloaded then
-- Don't infinetly fall into unloaded map
self.object:setvelocity({x = 0, y = 0, z = 0})
self.object:setacceleration({x = 0, y = 0, z = 0})
self.physical_state = false
self.object:set_properties({physical = false})
return
end
-- Destroy item in lava or special nodes
local nn = node.name
local def = minetest.registered_nodes[nn]
if (def and def.groups and (def.groups.lava or def.groups.destroys_items == 1)) then
-- Special effect for lava
if def.groups.lava then
minetest.sound_play("builtin_item_lava", {pos = self.object:getpos(), gain = 0.5})
end
self.object:remove()
return
end
-- Move item around on flowing liquids
if minetest.registered_nodes[nn] and minetest.registered_nodes[nn].liquidtype == "flowing" then
local get_flowing_dir = function(self)
local pos = self.object:getpos()
local param2 = minetest.get_node(pos).param2
-- Search for a liquid source, or a flowing liquid node higher than
-- the item's position in the 4 cardinal directions
local posses = {
{x=-1, y=0, z=0},
{x=1, y=0, z=0},
{x=0, y=0, z=-1},
{x=0, y=0, z=1},
}
for _, p in pairs(posses) do
local realpos = vector.add(pos, p)
local name = minetest.get_node(realpos).name
local def = minetest.registered_nodes[name]
local par2 = minetest.get_node(realpos).param2
if def.liquidtype == "source" or (def.liquidtype == "flowing" and par2 > param2) then
-- Node found! Since we looked upwards, the flowing
-- direction is the *opposite* of what we've found
return vector.multiply(p, -1)
end
end
end
local vec = get_flowing_dir(self)
if vec then
local v = self.object:getvelocity()
-- Minecraft Wiki: Flowing speed is "about 1.39 meters per second"
local f = 1.39
if vec.x > 0 then
self.object:setacceleration({x = 0, y = 0, z = 0})
self.object:setvelocity({x = f, y = -0.22, z = 0})
elseif vec.x < 0 then
self.object:setacceleration({x = 0, y = 0, z = 0})
self.object:setvelocity({x = -f, y = -0.22, z = 0})
elseif vec.z > 0 then
self.object:setacceleration({x = 0, y = 0, z = 0})
self.object:setvelocity({x = 0, y = -0.22, z = f})
elseif vec.z < 0 then
self.object:setacceleration({x = 0, y = 0, z = 0})
self.object:setvelocity({x = 0, y = -0.22, z = -f})
end
self.object:setacceleration({x = 0, y = -10, z = 0})
self.physical_state = true
self.object:set_properties({
physical = true
})
return
end
end
-- If node is not registered or node is walkably solid and resting on nodebox
p.y = p.y - 0.5
local nn = minetest.get_node(p).name
local v = self.object:getvelocity()
if not core.registered_nodes[nn] or core.registered_nodes[nn].walkable and v.y == 0 then
if self.physical_state then
local own_stack = ItemStack(self.object:get_luaentity().itemstring)
-- Merge with close entities of the same item
for _, object in ipairs(core.get_objects_inside_radius(p, 0.8)) do
local obj = object:get_luaentity()
if obj and obj.name == "__builtin:item"
and obj.physical_state == false then
if self:try_merge_with(own_stack, object, obj) then
return
end
end
end
self.object:setvelocity({x = 0, y = 0, z = 0})
self.object:setacceleration({x = 0, y = 0, z = 0})
self.physical_state = false
self.object:set_properties({physical = false})
end
else
if not self.physical_state then
self.object:setvelocity({x = 0, y = 0, z = 0})
self.object:setacceleration({x = 0, y = -10, z = 0})
self.physical_state = true
self.object:set_properties({physical = true})
end
end
end,
-- Note: on_punch intentionally left out. The player should *not* be able to collect items by punching
})
if minetest.setting_get("log_mods") then
minetest.log("action", "mcl_item_entity loaded")
end