forked from MineClone5/MineClone5
128 lines
3.5 KiB
Lua
128 lines
3.5 KiB
Lua
--
|
|
-- Snowballs and other throwable items
|
|
--
|
|
|
|
local GRAVITY = tonumber(minetest.setting_get("movement_gravity"))
|
|
local snowball_VELOCITY=19
|
|
local egg_VELOCITY=19
|
|
local pearl_VELOCITY=19
|
|
|
|
--Shoot item
|
|
local throw_function = function (entity_name, velocity)
|
|
local func = function(item, player, pointed_thing)
|
|
local playerpos=player:getpos()
|
|
local obj=minetest.add_entity({x=playerpos.x,y=playerpos.y+1.5,z=playerpos.z}, entity_name)
|
|
local dir=player:get_look_dir()
|
|
obj:setvelocity({x=dir.x*velocity, y=dir.y*velocity, z=dir.z*velocity})
|
|
obj:setacceleration({x=dir.x*-3, y=-GRAVITY, z=dir.z*-3})
|
|
obj:get_luaentity()._thrower = player:get_player_name()
|
|
item:take_item()
|
|
return item
|
|
end
|
|
return func
|
|
end
|
|
|
|
-- The snowball entity
|
|
local snowball_ENTITY={
|
|
physical = false,
|
|
timer=0,
|
|
textures = {"mcl_throwing_snowball.png"},
|
|
_lastpos={},
|
|
collisionbox = {0,0,0,0,0,0},
|
|
}
|
|
local egg_ENTITY={
|
|
physical = false,
|
|
timer=0,
|
|
textures = {"mcl_throwing_egg.png"},
|
|
_lastpos={},
|
|
collisionbox = {0,0,0,0,0,0},
|
|
}
|
|
-- Ender pearl entity
|
|
local pearl_ENTITY={
|
|
physical = false,
|
|
timer=0,
|
|
textures = {"mcl_throwing_ender_pearl.png"},
|
|
_lastpos={},
|
|
collisionbox = {0,0,0,0,0,0},
|
|
_thrower = nil, -- Player ObjectRef of the player who threw the ender pearl
|
|
}
|
|
|
|
-- Snowball and egg entity on_step()--> called when snowball is moving.
|
|
local on_step = function(self, dtime)
|
|
self.timer=self.timer+dtime
|
|
local pos = self.object:getpos()
|
|
local node = minetest.get_node(pos)
|
|
|
|
-- Remove when hitting a node.
|
|
if self._lastpos.x~=nil then
|
|
if node.name ~= "air" then
|
|
self.object:remove()
|
|
return
|
|
end
|
|
end
|
|
self._lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set _lastpos-->Node will be added at last pos outside the node
|
|
end
|
|
|
|
-- Movement function of ender pearl
|
|
local pearl_on_step = function(self, dtime)
|
|
self.timer=self.timer+dtime
|
|
local pos = self.object:getpos()
|
|
local node = minetest.get_node(pos)
|
|
|
|
--Become item when hitting a node.
|
|
if self._lastpos.x~=nil then
|
|
if node.name ~= "air" then
|
|
local player = minetest.get_player_by_name(self._thrower)
|
|
if player then
|
|
-- Teleport and hurt player
|
|
player:setpos(pos)
|
|
player:set_hp(player:get_hp() - 5)
|
|
end
|
|
self.object:remove()
|
|
return
|
|
end
|
|
end
|
|
self._lastpos={x=pos.x, y=pos.y, z=pos.z} -- Set lastpos-->Node will be added at last pos outside the node
|
|
end
|
|
|
|
snowball_ENTITY.on_step = on_step
|
|
egg_ENTITY.on_step = on_step
|
|
pearl_ENTITY.on_step = pearl_on_step
|
|
|
|
minetest.register_entity("mcl_throwing:snowball_entity", snowball_ENTITY)
|
|
minetest.register_entity("mcl_throwing:egg_entity", egg_ENTITY)
|
|
minetest.register_entity("mcl_throwing:ender_pearl_entity", pearl_ENTITY)
|
|
|
|
-- Snowball
|
|
minetest.register_craftitem("mcl_throwing:snowball", {
|
|
description = "Snowball",
|
|
inventory_image = "mcl_throwing_snowball.png",
|
|
stack_max = 16,
|
|
on_use = throw_function("mcl_throwing:snowball_entity", snowball_VELOCITY),
|
|
on_construct = function(pos)
|
|
pos.y = pos.y - 1
|
|
if minetest.get_node(pos).name == "default:dirt_with_grass" then
|
|
minetest.set_node(pos, {name="default:dirt_with_snow"})
|
|
end
|
|
end,
|
|
})
|
|
|
|
-- Egg
|
|
minetest.register_craftitem("mcl_throwing:egg", {
|
|
description = "Egg",
|
|
inventory_image = "mcl_throwing_egg.png",
|
|
stack_max = 16,
|
|
on_use = throw_function("mcl_throwing:egg_entity", egg_VELOCITY),
|
|
groups = { craftitem = 1 },
|
|
})
|
|
|
|
-- Ender Pearl
|
|
minetest.register_craftitem("mcl_throwing:ender_pearl", {
|
|
description = "Ender Pearl",
|
|
wield_image = "mcl_throwing_ender_pearl.png",
|
|
inventory_image = "mcl_throwing_ender_pearl.png",
|
|
stack_max = 16,
|
|
on_use = throw_function("mcl_throwing:ender_pearl_entity", pearl_VELOCITY),
|
|
})
|
|
|