forked from minetest-mods/mesecons
222 lines
6.7 KiB
Lua
222 lines
6.7 KiB
Lua
--PISTONS
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--registration normal one:
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minetest.register_node("mesecons_pistons:piston_normal", {
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description = "Piston",
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tiles = {"jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_side.png"},
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groups = {cracky=3},
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paramtype2 = "facedir",
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after_dig_node = function(pos, oldnode)
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local dir = mesecon:piston_get_direction(oldnode)
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pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node to check
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--ensure piston is extended
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local checknode = minetest.env:get_node(pos)
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if checknode.name == "mesecons_pistons:piston_pusher_normal" then
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if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
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minetest.env:remove_node(pos) --remove the pusher
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end
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end
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end,
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})
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--registration sticky one:
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minetest.register_node("mesecons_pistons:piston_sticky", {
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description = "Sticky Piston",
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tiles = {"jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_sticky_side.png"},
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groups = {cracky=3},
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paramtype2 = "facedir",
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after_dig_node = function(pos, oldnode)
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local dir = mesecon:piston_get_direction(oldnode)
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pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node to check
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--ensure piston is extended
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local checknode = minetest.env:get_node(pos)
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if checknode.name == "mesecons_pistons:piston_pusher_sticky" then
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if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
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minetest.env:remove_node(pos) --remove the pusher
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end
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end
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end,
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})
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minetest.register_craft({
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output = '"mesecons_pistons:piston_normal" 2',
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recipe = {
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{"default:wood", "default:wood", "default:wood"},
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{"default:cobble", "default:steel_ingot", "default:cobble"},
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{"default:cobble", "mesecons:mesecon_off", "default:cobble"},
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}
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})
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minetest.register_craft({
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output = "mesecons_pistons:piston_sticky",
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recipe = {
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{"mesecons_materials:glue"},
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{"mesecons_pistons:piston_normal"},
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}
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})
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minetest.register_node("mesecons_pistons:piston_pusher_normal", {
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drawtype = "nodebox",
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tiles = {"jeija_piston_pusher_normal.png"},
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paramtype = "light",
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paramtype2 = "facedir",
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diggable = false,
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selection_box = {
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type = "fixed",
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fixed = {
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{-0.2, -0.2, -0.3, 0.2, 0.2, 0.5},
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{-0.5, -0.5, -0.5, 0.5, 0.5, -0.3},
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},
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},
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node_box = {
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type = "fixed",
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fixed = {
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{-0.2, -0.2, -0.3, 0.2, 0.2, 0.5},
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{-0.5, -0.5, -0.5, 0.5, 0.5, -0.3},
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},
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},
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})
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mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_normal")
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mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_sticky")
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minetest.register_node("mesecons_pistons:piston_pusher_sticky", {
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drawtype = "nodebox",
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tiles = {
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"jeija_piston_pusher_normal.png",
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"jeija_piston_pusher_normal.png",
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"jeija_piston_pusher_normal.png",
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"jeija_piston_pusher_normal.png",
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"jeija_piston_pusher_normal.png",
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"jeija_piston_pusher_sticky.png"
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},
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paramtype = "light",
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paramtype2 = "facedir",
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diggable = false,
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selection_box = {
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type = "fixed",
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fixed = {
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{-0.2, -0.2, -0.3, 0.2, 0.2, 0.5},
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{-0.5, -0.5, -0.5, 0.5, 0.5, -0.3},
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},
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},
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node_box = {
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type = "fixed",
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fixed = {
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{-0.2, -0.2, -0.3, 0.2, 0.2, 0.5},
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{-0.5, -0.5, -0.5, 0.5, 0.5, -0.3},
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},
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},
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})
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-- Push action
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mesecon:register_on_signal_on(function(pos, node)
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if node.name ~= "mesecons_pistons:piston_normal" and node.name ~= "mesecons_pistons:piston_sticky" then
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return
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end
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local dir = mesecon:piston_get_direction(node)
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pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node being pushed
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--determine the number of nodes that need to be pushed
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local count = 0
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local checkpos = {x=pos.x, y=pos.y, z=pos.z} --first node being pushed
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while true do
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local checknode = minetest.env:get_node(checkpos)
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--check for collision with stopper
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if mesecon:is_mvps_stopper(checknode.name) then
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return
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end
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--check for column end
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if checknode.name == "air"
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or checknode.name == "ignore"
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or checknode.name == "default:water_source"
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or checknode.name == "default:water_flowing"
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or checknode.name == "default:lava_source"
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or checknode.name == "default:lava_flowing" then
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break
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end
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--limit piston pushing capacity
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count = count + 1
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if count > 15 then
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return
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end
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checkpos.x, checkpos.y, checkpos.z = checkpos.x + dir.x, checkpos.y + dir.y, checkpos.z + dir.z
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end
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local checknode = minetest.env:get_node(pos)
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minetest.env:dig_node(pos) --remove the first node
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--add pusher
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if node.name == "mesecons_pistons:piston_normal" then
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minetest.env:add_node(pos, {name="mesecons_pistons:piston_pusher_normal", param2=node.param2})
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else
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minetest.env:add_node(pos, {name="mesecons_pistons:piston_pusher_sticky", param2=node.param2})
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end
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--move nodes forward
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for i = 1, count do
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pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to the next node
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--move the node forward
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local nextnode = minetest.env:get_node(pos)
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minetest.env:dig_node(pos)
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minetest.env:place_node(pos, checknode)
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checknode = nextnode
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end
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end)
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--Pull action (sticky only)
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mesecon:register_on_signal_off(function(pos, node)
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if node.name ~= "mesecons_pistons:piston_normal" and node.name ~= "mesecons_pistons:piston_sticky" then
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return
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end
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local dir = mesecon:piston_get_direction(node)
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pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to the node to be replaced
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--ensure piston is extended
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local checknode = minetest.env:get_node(pos)
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if checknode.name ~= "mesecons_pistons:piston_pusher_normal" and checknode.name ~= "mesecons_pistons:piston_pusher_sticky" then
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return
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end
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if checknode.param2 ~= node.param2 then --pusher is not facing the same direction as the piston
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return --piston is not extended
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end
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--retract piston
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minetest.env:remove_node(pos) --remove pusher
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if node.name == "mesecons_pistons:piston_sticky" then --retract block
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local checkpos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to the node to be retracted
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checknode = minetest.env:get_node(checkpos)
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if checknode.name ~= "air"
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and checknode.name ~= "ignore"
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and checknode.name ~= "default:water_source"
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and checknode.name ~= "default:water_flowing"
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and checknode.name ~= "default:lava_source"
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and checknode.name ~= "default:lava_flowing"
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and not mesecon:is_mvps_stopper(checknode.name) then
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minetest.env:place_node(pos, checknode)
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minetest.env:dig_node(checkpos)
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end
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end
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end)
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-- get push direction
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function mesecon:piston_get_direction(node)
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if node.param2 == 3 then
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return {x=1, y=0, z=0}
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elseif node.param2 == 2 then
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return {x=0, y=0, z=1}
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elseif node.param2 == 1 then
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return {x=-1, y=0, z=0}
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else --node.param2 == 0
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return {x=0, y=0, z=-1}
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end
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end
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