Rewrite pistons (#362)

1 files changed, 48 insertions, 0 deletions

diff --git a/mesecons_pistons/legacy.lua b/mesecons_pistons/legacy.lua
new file mode 100644
index 0000000..0c6dcb3
--- /dev/null
+++ b/mesecons_pistons/legacy.lua
@@ -0,0 +1,48 @@
+local ground_dir = {
+	[0] = {x =  0, y = -1, z =  0},
+	      {x =  0, y =  0, z = -1},
+	      {x =  0, y =  0, z =  1},
+	      {x = -1, y =  0, z =  0},
+	      {x =  1, y =  0, z =  0},
+	      {x =  0, y =  1, z =  0},
+}
+
+minetest.register_lbm({
+	label = "Upgrade legacy pistons pointing up",
+	name = "mesecons_pistons:replace_legacy_piston_up",
+	nodenames = {
+		"mesecons_pistons:piston_up_normal_off",
+		"mesecons_pistons:piston_up_normal_on",
+		"mesecons_pistons:piston_up_pusher_normal",
+		"mesecons_pistons:piston_up_sticky_off",
+		"mesecons_pistons:piston_up_sticky_on",
+		"mesecons_pistons:piston_up_pusher_sticky",
+	},
+	run_at_every_load = false,
+	action = function(pos, node)
+		local dir = ground_dir[math.floor(node.param2/4)]
+		node.param2 = minetest.dir_to_facedir(dir, true)
+		node.name = node.name:sub(1, 24)..node.name:sub(28)
+		minetest.swap_node(pos, node)
+	end,
+})
+
+minetest.register_lbm({
+	label = "Upgrade legacy pistons pointing down",
+	name = "mesecons_pistons:replace_legacy_piston_down",
+	nodenames = {
+		"mesecons_pistons:piston_down_normal_off",
+		"mesecons_pistons:piston_down_normal_on",
+		"mesecons_pistons:piston_down_pusher_normal",
+		"mesecons_pistons:piston_down_sticky_off",
+		"mesecons_pistons:piston_down_sticky_on",
+		"mesecons_pistons:piston_down_pusher_sticky",
+	},
+	run_at_every_load = false,
+	action = function(pos, node)
+		local dir = vector.multiply(ground_dir[math.floor(node.param2/4)], -1)
+		node.param2 = minetest.dir_to_facedir(dir, true)
+		node.name = node.name:sub(1, 24)..node.name:sub(30)
+		minetest.swap_node(pos, node)
+	end,
+})