forked from VoxeLibre/VoxeLibre
128 lines
3.5 KiB
Lua
128 lines
3.5 KiB
Lua
--
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-- Snowballs and other throwable items
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--
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local GRAVITY = tonumber(minetest.setting_get("movement_gravity"))
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local snowball_VELOCITY=24
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local egg_VELOCITY=24
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local pearl_VELOCITY=24
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--Shoot item
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local throw_function = function (entity_name, velocity)
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local func = function(item, player, pointed_thing)
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local playerpos=player:getpos()
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local obj=minetest.add_entity({x=playerpos.x,y=playerpos.y+1.5,z=playerpos.z}, entity_name)
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local dir=player:get_look_dir()
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obj:setvelocity({x=dir.x*velocity, y=dir.y*velocity, z=dir.z*velocity})
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obj:setacceleration({x=dir.x*-3, y=-GRAVITY, z=dir.z*-3})
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obj:get_luaentity()._thrower = player:get_player_name()
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item:take_item()
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return item
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end
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return func
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end
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-- The snowball entity
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local snowball_ENTITY={
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physical = false,
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timer=0,
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textures = {"mcl_throwing_snowball.png"},
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_lastpos={},
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collisionbox = {0,0,0,0,0,0},
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}
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local egg_ENTITY={
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physical = false,
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timer=0,
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textures = {"mcl_throwing_egg.png"},
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_lastpos={},
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collisionbox = {0,0,0,0,0,0},
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}
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-- Ender pearl entity
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local pearl_ENTITY={
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physical = false,
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timer=0,
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textures = {"mcl_throwing_ender_pearl.png"},
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_lastpos={},
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collisionbox = {0,0,0,0,0,0},
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_thrower = nil, -- Player ObjectRef of the player who threw the ender pearl
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}
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-- Snowball and egg entity on_step()--> called when snowball is moving.
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local on_step = function(self, dtime)
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self.timer=self.timer+dtime
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local pos = self.object:getpos()
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local node = minetest.get_node(pos)
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-- Remove when hitting a node.
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if self._lastpos.x~=nil then
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if node.name ~= "air" then
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self.object:remove()
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return
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end
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end
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self._lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set _lastpos-->Node will be added at last pos outside the node
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end
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-- Movement function of ender pearl
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local pearl_on_step = function(self, dtime)
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self.timer=self.timer+dtime
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local pos = self.object:getpos()
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local node = minetest.get_node(pos)
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--Become item when hitting a node.
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if self._lastpos.x~=nil then
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if node.name ~= "air" then
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local player = minetest.get_player_by_name(self._thrower)
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if player then
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-- Teleport and hurt player
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player:setpos(pos)
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player:set_hp(player:get_hp() - 5)
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end
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self.object:remove()
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return
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end
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end
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self._lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set lastpos-->Node will be added at last pos outside the node
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end
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snowball_ENTITY.on_step = on_step
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egg_ENTITY.on_step = on_step
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pearl_ENTITY.on_step = pearl_on_step
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minetest.register_entity("mcl_throwing:snowball_entity", snowball_ENTITY)
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minetest.register_entity("mcl_throwing:egg_entity", egg_ENTITY)
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minetest.register_entity("mcl_throwing:ender_pearl_entity", pearl_ENTITY)
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-- Snowball
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minetest.register_craftitem("mcl_throwing:snowball", {
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description = "Snowball",
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inventory_image = "mcl_throwing_snowball.png",
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stack_max = 16,
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on_use = throw_function("mcl_throwing:snowball_entity", snowball_VELOCITY),
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on_construct = function(pos)
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pos.y = pos.y - 1
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if minetest.get_node(pos).name == "default:dirt_with_grass" then
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minetest.set_node(pos, {name="default:dirt_with_snow"})
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end
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end,
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})
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-- Egg
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minetest.register_craftitem("mcl_throwing:egg", {
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description = "Egg",
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inventory_image = "mcl_throwing_egg.png",
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stack_max = 16,
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on_use = throw_function("mcl_throwing:egg_entity", egg_VELOCITY),
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groups = { craftitem = 1 },
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})
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-- Ender Pearl
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minetest.register_craftitem("mcl_throwing:ender_pearl", {
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description = "Ender Pearl",
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wield_image = "mcl_throwing_ender_pearl.png",
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inventory_image = "mcl_throwing_ender_pearl.png",
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stack_max = 16,
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on_use = throw_function("mcl_throwing:ender_pearl_entity", pearl_VELOCITY),
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})
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