--get point where particle spawner is added
local function get_offset(wdir)
      local z = 0
      local x = 0
      if wdir == 4 then
            z = 0.25
      elseif wdir == 2 then
            x = 0.25
      elseif wdir == 5 then
            z = -0.25
      elseif wdir == 3 then
            x = -0.25
      end
      return {x = x, y = 0.27, z = z}      
end

--remove smoke and fire
local function delete_ps(pos)
      local meta = minetest.get_meta(pos)
      minetest.delete_particlespawner(meta:get_int("psf"))
      minetest.delete_particlespawner(meta:get_int("pss"))
end

--add in smoke and fire
local function create_ps(pos)
      local dir = get_offset(minetest.get_node(pos).param2)
      local ppos = vector.add(dir,pos)
      local meta = minetest.get_meta(pos)
      local psf = minetest.add_particlespawner({
            amount = 2,
            time = 0,
            minpos = ppos,
            maxpos = ppos,
            minvel = vector.new(0,0,0),
            maxvel = vector.new(0,0,0),
            minacc = {x=0, y=0, z=0},
            maxacc = {x=0, y=0, z=0},
            minexptime = 1,
            maxexptime = 1,
            minsize = 3,
            maxsize = 3,
            collisiondetection = false,
            vertical = true,
            texture = "redstone_torch_animated.png",
            animation = {type = "vertical_frames",

                  aspect_w = 16,
                  -- Width of a frame in pixels

                  aspect_h = 16,
                  -- Height of a frame in pixels

                  length =  0.2,
                  -- Full loop length
            },
      })
      local pss = minetest.add_particlespawner({
            amount = 2,
            time = 0,
            minpos = ppos,
            maxpos = ppos,
            minvel = vector.new(-0.1,0.1,-0.1),
            maxvel = vector.new(0.1,0.3,0.1),
            minacc = vector.new(0,0,0),
            maxacc = vector.new(0,0,0),
            minexptime = 1,
            maxexptime = 2,
            minsize = 1,
            maxsize = 2,
            collisiondetection = false,
            vertical = false,
            texture = "smoke.png",
      })
      meta:set_int("psf", psf)
      meta:set_int("pss", pss)
end

--reload smoke and flame on load
--[[
minetest.register_lbm({
      name = "redstone:torch",
      nodenames = {"redstone:torch_floor","redstone:torch_wall"},
      run_at_every_load = true,
      action = function(pos, node)
            create_ps(pos)
      end,
})
]]--
-- Item definitions
minetest.register_craftitem("redstone:torch", {
      description = "Redstone Torch",
      inventory_image = "redstone_torch.png",
      wield_image = "redstone_torch.png",
      wield_scale = {x = 1, y = 1, z = 1 + 1/16},
      liquids_pointable = false,
      power = 9,
      on_place = function(itemstack, placer, pointed_thing)
            if pointed_thing.type ~= "node" then
                  return itemstack
            end

            local wdir = minetest.dir_to_wallmounted(vector.subtract(pointed_thing.under,pointed_thing.above))

            local fakestack = itemstack
            local retval = false
            if wdir < 1 then
                  return itemstack
            elseif wdir == 1 then
                  retval = fakestack:set_name("redstone:torch_floor")
            else
                  retval = fakestack:set_name("redstone:torch_wall")
            end
            if not retval then
                  return itemstack
            end
            itemstack, retval = minetest.item_place(fakestack, placer, pointed_thing, wdir)
            itemstack:set_name("redstone:torch")

            if retval then
                  minetest.sound_play("wood", {pos=pointed_thing.above, gain = 1.0})
            end

            return itemstack
      end
})

minetest.register_node("redstone:torch_floor", {
      inventory_image = "redstone_torch.png",
      wield_image = "redstone_torch.png",
      wield_scale = {x = 1, y = 1, z = 1 + 2/16},
      drawtype = "mesh",
      mesh = "torch_floor.obj",
      tiles = {"redstone_torch.png"},
      paramtype = "light",
      paramtype2 = "none",
      power = 9,
      sunlight_propagates = true,
      drop = "redstone:torch",
      walkable = false,
      light_source = 13,
      groups = {choppy=2, dig_immediate=3, not_in_creative_inventory=1, attached_node=1, torch=1,redstone=1,connect_to_raillike=1},
      legacy_wallmounted = true,
      selection_box = {
            type = "fixed",
            fixed = {-1/16, -0.5, -1/16, 1/16, 2/16, 1/16},
      },
      on_construct = function(pos)
            --create_ps(pos)
            redstone.update(pos)
      end,
      after_destruct = function(pos, oldnode)
            redstone.update(pos,oldnode)
      end,
      on_destruct = function(pos)
            --delete_ps(pos)
      end,
      sounds = main.woodSound(),
})

minetest.register_node("redstone:torch_wall", {
      inventory_image = "redstone_torch.png",
      wield_image = "redstone_torch.png",
      wield_scale = {x = 1, y = 1, z = 1 + 1/16},
      drawtype = "mesh",
      mesh = "torch_wall.obj",
      tiles = {"redstone_torch.png"},
      paramtype = "light",
      paramtype2 = "wallmounted",
      sunlight_propagates = true,
      walkable = false,
      light_source = 13,
      power = 9,
      groups = {choppy=2, dig_immediate=3, flammable=1, not_in_creative_inventory=1, attached_node=1, torch=1,redstone=1,redstone_torch=1,connect_to_raillike=1},
      drop = "redstone:torch",
      selection_box = {
            type = "wallmounted",
            wall_top = {-0.1, -0.1, -0.1, 0.1, 0.5, 0.1},
            wall_bottom = {-0.1, -0.5, -0.1, 0.1, 0.1, 0.1},
            wall_side = {-0.5, -0.3, -0.1, -0.2, 0.3, 0.1},
      },
      on_construct = function(pos)
            --create_ps(pos)
            redstone.update(pos)
      end,
      after_destruct = function(pos, oldnode)
            --redstone.update(pos,oldnode)
      end,
      on_destruct = function(pos)
            delete_ps(pos)
      end,
      sounds = main.woodSound(),
})

minetest.register_craft({
      output = "redstone:torch 4",
      recipe = {
            {"redstone:dust"},
            {"main:stick"}
      }
})













minetest.register_craftitem("redstone:blink_torch", {
      description = "Redstone Blink Torch",
      inventory_image = "redstone_torch.png",
      wield_image = "redstone_torch.png",
      wield_scale = {x = 1, y = 1, z = 1 + 1/16},
      liquids_pointable = false,
      power = 8,
      on_place = function(itemstack, placer, pointed_thing)
            if pointed_thing.type ~= "node" then
                  return itemstack
            end

            local wdir = minetest.dir_to_wallmounted(vector.subtract(pointed_thing.under,pointed_thing.above))

            local fakestack = itemstack
            local retval = false
            if wdir < 1 then
                  return itemstack
            elseif wdir == 1 then
                  retval = fakestack:set_name("redstone:blink_torch_floor_1")
            else
                  retval = fakestack:set_name("redstone:blink_torch_wall_1")
            end
            if not retval then
                  return itemstack
            end
            itemstack, retval = minetest.item_place(fakestack, placer, pointed_thing, wdir)
            itemstack:set_name("redstone:blink_torch")

            if retval then
                  minetest.sound_play("wood", {pos=pointed_thing.above, gain = 1.0})
            end

            return itemstack
      end
})
for i = 0,1 do
      local coloring = 160*(1-i)
      -- BLINK TORCH

      minetest.register_node("redstone:blink_torch_floor_"..i, {
            inventory_image = "redstone_torch.png",
            wield_image = "redstone_torch.png",
            wield_scale = {x = 1, y = 1, z = 1 + 2/16},
            drawtype = "mesh",
            mesh = "torch_floor.obj",
            tiles = {"redstone_torch.png^[colorize:black:"..coloring},
            paramtype = "light",
            paramtype2 = "none",
            power = 8*i,
            sunlight_propagates = true,
            drop = "redstone:torch",
            walkable = false,
            light_source = i*13,
            groups = {choppy=2, dig_immediate=3, not_in_creative_inventory=1, attached_node=1, torch=1,redstone=1,connect_to_raillike=1,blinker_torch = 1},
            legacy_wallmounted = true,
            selection_box = {
                  type = "fixed",
                  fixed = {-1/16, -0.5, -1/16, 1/16, 2/16, 1/16},
            },
            on_construct = function(pos)
                  redstone.update(pos)
            end,
            after_destruct = function(pos, oldnode)
                  redstone.update(pos,oldnode)
            end,
            sounds = main.woodSound(),
      })

      minetest.register_node("redstone:blink_torch_wall_"..i, {
            inventory_image = "redstone_torch.png",
            wield_image = "redstone_torch.png",
            wield_scale = {x = 1, y = 1, z = 1 + 1/16},
            drawtype = "mesh",
            mesh = "torch_wall.obj",
            tiles = {"redstone_torch.png^[colorize:black:"..coloring},
            paramtype = "light",
            paramtype2 = "wallmounted",
            sunlight_propagates = true,
            walkable = false,
            light_source = 13*i,
            power = 8*i,
            groups = {choppy=2, dig_immediate=3, flammable=1, not_in_creative_inventory=1, attached_node=1, torch=1,redstone=1,redstone_torch=1,connect_to_raillike=1,blinker_torch = 1},
            drop = "redstone:torch",
            selection_box = {
                  type = "wallmounted",
                  wall_top = {-0.1, -0.1, -0.1, 0.1, 0.5, 0.1},
                  wall_bottom = {-0.1, -0.5, -0.1, 0.1, 0.1, 0.1},
                  wall_side = {-0.5, -0.3, -0.1, -0.2, 0.3, 0.1},
            },
            on_construct = function(pos)
                  redstone.update(pos)
            end,
            after_destruct = function(pos, oldnode)
                  redstone.update(pos,oldnode)
            end,
            sounds = main.woodSound(),
      })

end


minetest.register_abm{
      label = "Torch Blink",
	nodenames = {"group:blinker_torch"},
	--neighbors = {"group:redstone"},
	interval = 0.4,
	chance = 1,
	action = function(pos, node, active_object_count, active_object_count_wider)
            --minetest.set_node(pos,{name=node.name:sub(1, -2)..0})
		--redstone.update(pos)
            print("tests")
            local inversion = math.abs(tonumber(node.name:sub(#node.name, #node.name))-1) --never do this
            minetest.set_node(pos,{name=node.name:sub(1, #node.name-1)..inversion})
            redstone.update(pos)
	end,
}
minetest.register_craft({
      output = "redstone:blink_torch 4",
      recipe = {
            {"redstone:dust"},
            {"redstone:dust"},
            {"main:stick"}
      }
})