advtrains_freight_train/init.lua

local S
if minetest.get_modpath("intllib") then
    S = intllib.Getter()
else
    S = function(s,a,...)a={a,...}return s:gsub("@(%d+)",function(n)return a[tonumber(n)]end)end
end

local function loco_set_livery(self, puncher, itemstack,data)
		-- Get color data
	local meta = itemstack:get_meta()
	local color = meta:get_string("paint_color")
	if color and color:find("^#%x%x%x%x%x%x$") then
		data.livery = self.base_texture.."^("..self.base_livery.."^[multiply:"..color..")" -- livery texture has no own texture....
		self:set_textures(data)
	end
end

local function	loco_set_textures(self, data)
	if data.livery then
		self.object:set_properties({
				textures={data.livery}
		})
	end
end


advtrains.register_wagon("diesel_lokomotive", {
	mesh="advtrains_engine_diesel.b3d",
	textures = {"advtrains_engine_diesel.png"},
	is_locomotive=true,
	drives_on={default=true},
	max_speed=10,
	seats = {
		{
			name = S("Driver Stand (left)"),
			attach_offset = {x=-3, y=2, z=-2},
			view_offset = {x=-4, y=3, z=0},
			group = "dstand",
		},
		{
			name = S("Trainee Seat (right)"),
			attach_offset = {x=3, y=2, z=-2},
			view_offset = {x=4, y=3, z=0},
			group = "tseat",
		},
	},
	seat_groups = {
		dstand = {
			name = "Driver Stand",
			access_to = {"tseat"},
			driving_ctrl_access = true,
		},
		tseat = {
			name = "Trainee Seat",
			access_to = {"dstand"},
			driving_ctrl_access = false,
		},
	},
	assign_to_seat_group = {"dstand", "tseat"},
	visual_size = {x=1, y=1},
	wagon_span = 1.95,
	collisionbox = {-1.0,-0.5,-1.0, 1.0,2.5,1.0},
	base_texture = "advtrains_engine_diesel.png",
	base_livery = "advtrains_engine_diesel_livery.png",
	set_textures = loco_set_textures,
	set_livery = loco_set_livery,
	update_animation=function(self, velocity)
		if self.old_anim_velocity~=advtrains.abs_ceil(velocity) then
			self.object:set_animation({x=1,y=80}, advtrains.abs_ceil(velocity)*15, 0, true)
			self.old_anim_velocity=advtrains.abs_ceil(velocity)
		end
	end,
	custom_on_activate = function(self, staticdata_table, dtime_s)
		minetest.add_particlespawner({
			amount = 10,
			time = 0,
		--  ^ If time is 0 has infinite lifespan and spawns the amount on a per-second base
			minpos = {x=0, y=2.5, z=0.9},
			maxpos = {x=0, y=2.5, z=0.9},
			minvel = {x=-0.2, y=1.8, z=-0.2},
			maxvel = {x=0.2, y=2, z=0.2},
			minacc = {x=0, y=-0.1, z=0},
			maxacc = {x=0, y=-0.3, z=0},
			minexptime = 2,
			maxexptime = 4,
			minsize = 1,
			maxsize = 4,
		--  ^ The particle's properties are random values in between the bounds:
		--  ^ minpos/maxpos, minvel/maxvel (velocity), minacc/maxacc (acceleration),
		--  ^ minsize/maxsize, minexptime/maxexptime (expirationtime)
			collisiondetection = true,
		--  ^ collisiondetection: if true uses collision detection
			vertical = false,
		--  ^ vertical: if true faces player using y axis only
			texture = "smoke_puff.png",
		--  ^ Uses texture (string)
			attached = self.object,
		})
	end,
	drops={"advtrains:diesel_lokomotive"},
	horn_sound = "advtrains_engine_diesel_horn",
	glow = 1
}, S("Diesel Engine"), "advtrains_engine_diesel_inv.png")

advtrains.register_wagon("wagon_gravel", {
	mesh="advtrains_wagon_gravel.b3d",
	textures = {"advtrains_wagon_gravel.png"},
	drives_on={default=true},
	max_speed=10,
	seats = {},
	visual_size = {x=1, y=1},
	wagon_span=1.55,
	collisionbox = {-1.0,-0.5,-1.0, 1.0,1.5,1.0},
	drops={"advtrains:wagon_gravel"},
	has_inventory = true,
	get_inventory_formspec = function(self, pname, invname)
		return "size[8,11]"..
			"list["..invname..";box;0,0;8,6;]"..
			"list[current_player;main;0,7;8,4;]"..
			"listring[]"
	end,
	inventory_list_sizes = {
		box=8*6,
	},
}, S("Gravel Wagon"), "advtrains_wagon_gravel_inv.png")

advtrains.register_wagon("wagon_track", {
	mesh="advtrains_wagon_stick.b3d",
	textures = {"advtrains_wagon_stick.png"},
	drives_on={default=true},
	max_speed=10,
	seats = {},
	visual_size = {x=1, y=1},
	wagon_span=1.55,
	collisionbox = {-1.0,-0.5,-1.0, 1.0,1.5,1.0},
	drops={"advtrains:wagon_track"},
	has_inventory = true,
	get_inventory_formspec = function(self, pname, invname)
		return "size[8,11]"..
			"list["..invname..";box;0,0;8,6;]"..
			"list[current_player;main;0,7;8,4;]"..
			"listring[]"
	end,
	inventory_list_sizes = {
		box=8*6,
	},
}, S("Track Wagon"), "advtrains_wagon_track_inv.png")



advtrains.register_wagon("wagon_lava", {
	mesh="advtrains_wagon_lava.b3d",
	textures = {"advtrains_wagon_lava.png"},
	drives_on={default=true},
	max_speed=10,
	seats = {},
	visual_size = {x=1, y=1},
	wagon_span=1.55,
	collisionbox = {-1.0,-0.5,-1.0, 1.0,1.5,1.0},
	drops={"advtrains:wagon_lava"},
	has_inventory = true,
	get_inventory_formspec = function(self, pname, invname)
		return "size[8,11]"..
			"list["..invname..";box;0,0;8,6;]"..
			"list[current_player;main;0,7;8,4;]"..
			"listring[]"
	end,
	inventory_list_sizes = {
		box=8*6,
	},
}, S("Lava Wagon"), "advtrains_wagon_lava_inv.png")


advtrains.register_wagon("wagon_tree", {
	mesh="advtrains_wagon_tree.b3d",
	textures = {"advtrains_wagon_tree.png"},
	drives_on={default=true},
	max_speed=10,
	seats = {},
	visual_size = {x=1, y=1},
	wagon_span=1.55,
	collisionbox = {-1.0,-0.5,-1.0, 1.0,1.5,1.0},
	drops={"advtrains:wagon_tree"},
	has_inventory = true,
	get_inventory_formspec = function(self, pname, invname)
		return "size[8,11]"..
			"list["..invname..";box;0,0;8,6;]"..
			"list[current_player;main;0,7;8,4;]"..
			"listring[]"
	end,
	inventory_list_sizes = {
		box=8*6,
	},
}, S("Tree Wagon"), "advtrains_wagon_tree_inv.png")