Further piston improvements, the pistons now delay before retracting and play nice with invalid states.
Anthony Zhang
parent
931ac23ff3
commit
ff5dcda7c7
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@ -1,9 +1,9 @@
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--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, mesecon = 2},
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groups = {cracky=3, mesecon=2},
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paramtype2 = "facedir",
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after_destruct = function(pos, oldnode)
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local dir = mesecon:piston_get_direction(oldnode)
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@ -18,17 +18,20 @@ minetest.register_node("mesecons_pistons:piston_normal", {
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end
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end,
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on_timer = function(pos, elapsed)
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mesecon:piston_push(pos, minetest.env:get_node(pos))
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if mesecon:is_powered(pos) then
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mesecon:piston_push(pos)
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else
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mesecon:piston_pull(pos)
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end
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return false
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end,
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})
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mesecon:register_effector("mesecons_pistons:piston_normal", "mesecons_pistons:piston_normal")
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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, mesecon = 2},
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groups = {cracky=3, mesecon=2},
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paramtype2 = "facedir",
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after_destruct = function(pos, oldnode)
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local dir = mesecon:piston_get_direction(oldnode)
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@ -43,7 +46,11 @@ minetest.register_node("mesecons_pistons:piston_sticky", {
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end
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end,
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on_timer = function(pos, elapsed)
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mesecon:piston_push(pos, minetest.env:get_node(pos))
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if mesecon:is_powered(pos) then
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mesecon:piston_push(pos)
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else
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mesecon:piston_pull(pos)
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end
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return false
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end,
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})
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@ -120,54 +127,22 @@ minetest.register_node("mesecons_pistons:piston_pusher_sticky", {
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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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-- Push action
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mesecon:register_on_signal_on(function(pos, node)
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local update = 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 timer = minetest.env:get_node_timer(pos)
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timer:set(1.0, 0)
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end)
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--Pull action
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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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timer:stop()
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timer:set(0.1, 0)
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end
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mesecon:register_on_signal_on(update) --push action
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mesecon:register_on_signal_off(update) --pull action
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function mesecon:piston_push(pos)
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local node = minetest.env:get_node(pos)
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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 minetest.registered_nodes[checknode.name].liquidtype == "none"
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and not mesecon:is_mvps_stopper(checknode.name) then
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minetest.env:set_node(pos, checknode)
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minetest.env:remove_node(checkpos)
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mesecon:updatenode(checkpos)
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end
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end
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nodeupdate(pos)
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end)
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function mesecon:piston_push(pos, node)
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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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pos = {x=pos.x + dir.x, y=pos.y + dir.y, z=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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@ -197,10 +172,9 @@ function mesecon:piston_push(pos, node)
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end
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local checknode = minetest.env:get_node(pos)
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minetest.env:remove_node(pos) --remove the first node
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mesecon:updatenode(pos)
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--add pusher
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minetest.env:dig_node(pos) --remove the first node
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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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@ -211,15 +185,49 @@ function mesecon:piston_push(pos, node)
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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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--check for conductor
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if mesecon:is_conductor_on(checknode.name) then
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checknode.name = mesecon:get_conductor_off(checknode.name)
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end
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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:set_node(pos, checknode)
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mesecon:updatenode(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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function mesecon:piston_pull(pos)
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local node = minetest.env:get_node(pos)
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local dir = mesecon:piston_get_direction(node)
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pos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to first node being 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 minetest.registered_nodes[checknode.name].liquidtype == "none"
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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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mesecon:updatenode(checkpos)
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end
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end
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nodeupdate(pos)
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end
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-- get piston direction
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function mesecon:piston_get_direction(node)
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if node.param2 == 3 then
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