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local modpath = minetest.get_modpath(minetest.get_current_modname())
dofile(modpath.."/railcart.lua")
local worldpath = minetest.get_worldpath()
local input = io.open(worldpath.."/railcart.txt", "r")
if input then
local data = input:read('*all')
if data then
local carts = minetest.deserialize(data) or {}
for id, ref in pairs(carts) do
railcart.allcarts[id] = railcart.cart:new(ref)
end
end
input = nil
end
local function is_valid_player(object)
if object then
return object:is_player()
end
end
minetest.register_globalstep(function(dtime)
for _, cart in pairs(railcart.allcarts) do
cart:on_step(dtime)
end
railcart.timer = railcart.timer + dtime
if railcart.timer > RAILCART_OBJECT_SAVE_TIME then
railcart:save()
railcart.timer = 0
end
end)
minetest.register_on_shutdown(function()
railcart:save()
end)
minetest.register_privilege("carts", "Player can pick-up and place carts.")
minetest.register_entity("railcart:cart_entity", {
physical = false,
collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
visual = "mesh",
mesh = "railcart.x",
visual_size = {x=1, y=1},
textures = {"cart.png"},
cart = nil,
driver = nil,
timer = 0,
on_activate = function(self, staticdata, dtime_s)
self.object:set_armor_groups({immortal=1})
if staticdata == "expired" then
self.object:remove()
end
end,
on_punch = function(self, puncher, _, _, direction)
if not is_valid_player(puncher) then
return
end
if puncher:get_player_control().sneak then
if self.cart then
if self.cart.id then
railcart.allcarts[self.cart.id] = nil
railcart:save()
end
end
self.object:remove()
local inv = puncher:get_inventory()
if minetest.setting_getbool("creative_mode") then
if not inv:contains_item("main", "railcart:cart") then
inv:add_item("main", "railcart:cart")
end
else
inv:add_item("main", "railcart:cart")
end
return
end
if self.cart and direction then
local pos = vector.round(self.object:getpos())
local dir = vector.round(vector.normalize(direction))
local speed = railcart:velocity_to_speed(self.cart.vel)
self.timer = 0
self.cart.target = nil
self.cart.prev = pos
self.cart.vel = vector.multiply(dir, RAILCART_SPEED_PUSH)
self.cart.accel = railtrack:get_acceleration(pos)
self.object:setvelocity(self.cart.vel)
end
end,
on_rightclick = function(self, clicker)
if not is_valid_player(clicker) then
return
end
if self.driver and clicker == self.driver then
self.driver = nil
clicker:set_detach()
elseif not self.driver then
self.driver = clicker
clicker:set_attach(self.object, "", {x=0,y=5,z=0}, {x=0,y=0,z=0})
end
end,
on_step = function(self, dtime)
local cart = self.cart
local object = self.object
if not cart or not object then
return
end
self.timer = self.timer - dtime
if self.timer > 0 then
return
end
self.timer = railcart:update(cart, RAILCART_ENTITY_UPDATE_TIME, object)
end,
get_staticdata = function(self)
return "expired"
end,
})
minetest.register_craftitem("railcart:cart", {
description = "Railcart",
inventory_image = minetest.inventorycube("cart_top.png", "cart_side.png", "cart_side.png"),
wield_image = "cart_side.png",
on_place = function(itemstack, placer, pointed_thing)
local name = placer:get_player_name()
if not name or pointed_thing.type ~= "node" then
return
end
local pos = pointed_thing.under
if not railtrack:is_railnode(pos) then
return
end
if not minetest.is_singleplayer() then
if not minetest.check_player_privs(name, {carts=true}) then
minetest.chat_send_player(name, "Requires carts privilege")
return
end
end
local cart = railcart.cart:new()
cart.id = #railcart.allcarts + 1
cart.pos = pos
cart.prev = vector.new(pos)
cart.accel = railtrack:get_acceleration(pos)
table.insert(railcart.allcarts, cart)
railcart:save()
if not minetest.setting_getbool("creative_mode") then
itemstack:take_item()
end
return itemstack
end,
})
minetest.register_craft({
output = "railcart:cart",
recipe = {
{"default:steel_ingot", "", "default:steel_ingot"},
{"default:steel_ingot", "", "default:steel_ingot"},
{"group:wood", "default:steel_ingot", "group:wood"},
},
})
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