forked from minetest-mods/mesecons
345 lines
10 KiB
Lua
345 lines
10 KiB
Lua
local piston_get_rules = function (node)
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local all_rules ={
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{x=0, y=0, z=1},
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{x=0, y=0, z=-1},
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{x=1, y=0, z=0},
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{x=-1, y=0, z=0},
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{x=1, y=1, z=0},
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{x=1, y=-1, z=0},
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{x=-1, y=1, z=0},
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{x=-1, y=-1, z=0},
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{x=0, y=1, z=1},
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{x=0, y=-1, z=1},
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{x=0, y=1, z=-1},
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{x=0, y=-1, z=-1}}
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local pusher_dir = vector.multiply(minetest.facedir_to_dir(node.param2), -1)
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for k,v in ipairs(all_rules) do
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if vector.equals(v, pusher_dir) then
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table.remove(all_rules, k)
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end
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end
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return all_rules
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end
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local function piston_facedir_direction(node)
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local rules = {{x = 0, y = 0, z = -1}}
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for i = 1, node.param2 do
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rules = mesecon.rotate_rules_left(rules)
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end
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return rules[1]
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end
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local piston_remove_pusher = function(pos, node)
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local pistonspec = minetest.registered_nodes[node.name].mesecons_piston
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local dir = vector.multiply(minetest.facedir_to_dir(node.param2), -1)
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local pusherpos = vector.add(pos, dir)
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local pushername = minetest.get_node(pusherpos).name
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-- make sure there actually is a pusher (for compatibility reasons mainly)
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if pushername ~= pistonspec.pusher then
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return
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end
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minetest.remove_node(pusherpos)
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minetest.sound_play("piston_retract", {
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pos = pos,
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max_hear_distance = 20,
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gain = 0.3,
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})
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nodeupdate(pusherpos)
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end
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local piston_on = function(pos, node)
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local pistonspec = minetest.registered_nodes[node.name].mesecons_piston
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local dir = vector.multiply(minetest.facedir_to_dir(node.param2), -1)
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local np = vector.add(pos, dir)
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local maxpush = mesecon.setting("piston_max_push", 15)
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local success, stack, oldstack = mesecon.mvps_push(np, dir, maxpush)
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if success then
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minetest.set_node(pos, {param2 = node.param2, name = pistonspec.onname})
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minetest.set_node(np, {param2 = node.param2, name = pistonspec.pusher})
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minetest.sound_play("piston_extend", {
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pos = pos,
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max_hear_distance = 20,
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gain = 0.3,
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})
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mesecon.mvps_process_stack(stack)
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mesecon.mvps_move_objects(np, dir, oldstack)
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end
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end
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local piston_off = function(pos, node)
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local pistonspec = minetest.registered_nodes[node.name].mesecons_piston
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minetest.set_node(pos, {param2 = node.param2, name = pistonspec.offname})
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piston_remove_pusher(pos, node)
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if pistonspec.sticky then
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local maxpull = mesecon.setting("piston_max_pull", 15)
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local dir = vector.multiply(minetest.facedir_to_dir(node.param2), -1)
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local pullpos = vector.add(pos, vector.multiply(dir, 2))
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local stack = mesecon.mvps_pull_single(pullpos, vector.multiply(dir, -1), maxpull)
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mesecon.mvps_process_stack(pos, dir, stack)
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end
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end
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local piston_onrotate = function(pos, node, _, _, newparam2)
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local node_copy = minetest.get_node(pos)
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minetest.after(0, mesecon.on_dignode, pos, node)
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node_copy.param2 = newparam2
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minetest.after(0, mesecon.on_placenode, pos, node_copy)
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end
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local pt = 3/16 -- pusher thickness
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local piston_pusher_box = {
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type = "fixed",
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fixed = {
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{-2/16, -2/16, -.5 + pt, 2/16, 2/16, .5 + pt},
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{-.5 , -.5 , -.5 , .5 , .5 , -.5 + pt},
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}
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}
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local piston_on_box = {
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type = "fixed",
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fixed = {
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{-.5, -.5, -.5 + pt, .5, .5, .5}
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}
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}
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-- Normal (non-sticky) ones:
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local pistonspec_normal = {
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offname = "mesecons_pistons:piston_normal_off",
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onname = "mesecons_pistons:piston_normal_on",
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dir = piston_facedir_direction,
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pusher = "mesecons_pistons:piston_pusher_normal",
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}
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-- offstate
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minetest.register_node("mesecons_pistons:piston_normal_off", {
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description = "Piston",
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tiles = {
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"mesecons_piston_top.png",
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"mesecons_piston_bottom.png",
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"mesecons_piston_left.png",
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"mesecons_piston_right.png",
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"mesecons_piston_back.png",
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"mesecons_piston_pusher_front.png"
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},
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groups = {cracky = 3},
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paramtype2 = "facedir",
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mesecons_piston = pistonspec_normal,
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on_rotate = piston_onrotate,
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sounds = default.node_sound_wood_defaults(),
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mesecons = {effector={
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action_on = piston_on,
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rules = piston_get_rules
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}}
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})
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-- onstate
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minetest.register_node("mesecons_pistons:piston_normal_on", {
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drawtype = "nodebox",
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tiles = {
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"mesecons_piston_top.png",
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"mesecons_piston_bottom.png",
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"mesecons_piston_left.png",
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"mesecons_piston_right.png",
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"mesecons_piston_back.png",
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"mesecons_piston_on_front.png"
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},
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inventory_image = "mesecons_piston_top.png",
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wield_image = "mesecons_piston_top.png",
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groups = {cracky = 3, not_in_creative_inventory = 1},
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paramtype = "light",
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paramtype2 = "facedir",
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drop = "mesecons_pistons:piston_normal_off",
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after_dig_node = piston_remove_pusher,
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node_box = piston_on_box,
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selection_box = piston_on_box,
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mesecons_piston = pistonspec_normal,
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on_rotate = false,
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sounds = default.node_sound_wood_defaults(),
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mesecons = {effector={
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action_off = piston_off,
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rules = piston_get_rules
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}}
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})
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-- pusher
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minetest.register_node("mesecons_pistons:piston_pusher_normal", {
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drawtype = "nodebox",
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tiles = {
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"mesecons_piston_pusher_top.png",
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"mesecons_piston_pusher_bottom.png",
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"mesecons_piston_pusher_left.png",
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"mesecons_piston_pusher_right.png",
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"mesecons_piston_pusher_back.png",
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"mesecons_piston_pusher_front.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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on_rotate = false,
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corresponding_piston = "mesecons_pistons:piston_normal_on",
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selection_box = piston_pusher_box,
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node_box = piston_pusher_box,
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})
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-- Sticky ones
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local pistonspec_sticky = {
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offname = "mesecons_pistons:piston_sticky_off",
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onname = "mesecons_pistons:piston_sticky_on",
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dir = piston_facedir_direction,
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pusher = "mesecons_pistons:piston_pusher_sticky",
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sticky = true,
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}
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-- offstate
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minetest.register_node("mesecons_pistons:piston_sticky_off", {
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description = "Sticky Piston",
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tiles = {
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"mesecons_piston_top.png",
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"mesecons_piston_bottom.png",
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"mesecons_piston_left.png",
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"mesecons_piston_right.png",
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"mesecons_piston_back.png",
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"mesecons_piston_pusher_front_sticky.png"
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},
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groups = {cracky = 3},
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paramtype2 = "facedir",
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on_rotate = piston_onrotate,
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mesecons_piston = pistonspec_sticky,
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sounds = default.node_sound_wood_defaults(),
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mesecons = {effector={
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action_on = piston_on,
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rules = piston_get_rules
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}}
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})
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-- onstate
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minetest.register_node("mesecons_pistons:piston_sticky_on", {
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drawtype = "nodebox",
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tiles = {
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"mesecons_piston_top.png",
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"mesecons_piston_bottom.png",
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"mesecons_piston_left.png",
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"mesecons_piston_right.png",
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"mesecons_piston_back.png",
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"mesecons_piston_on_front.png"
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},
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inventory_image = "mesecons_piston_top.png",
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wield_image = "mesecons_piston_top.png",
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groups = {cracky = 3, not_in_creative_inventory = 1},
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paramtype = "light",
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paramtype2 = "facedir",
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drop = "mesecons_pistons:piston_sticky_off",
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after_dig_node = piston_remove_pusher,
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node_box = piston_on_box,
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selection_box = piston_on_box,
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mesecons_piston = pistonspec_sticky,
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on_rotate = false,
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sounds = default.node_sound_wood_defaults(),
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mesecons = {effector={
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action_off = piston_off,
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rules = piston_get_rules
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}}
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})
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-- pusher
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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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"mesecons_piston_pusher_top.png",
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"mesecons_piston_pusher_bottom.png",
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"mesecons_piston_pusher_left.png",
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"mesecons_piston_pusher_right.png",
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"mesecons_piston_pusher_back.png",
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"mesecons_piston_pusher_front_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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on_rotate = false,
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corresponding_piston = "mesecons_pistons:piston_sticky_on",
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selection_box = piston_pusher_box,
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node_box = piston_pusher_box,
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})
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-- Register pushers as stoppers if they would be seperated from the piston
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local piston_pusher_get_stopper = function (node, dir, stack, stackid)
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if (stack[stackid + 1]
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and stack[stackid + 1].node.name == minetest.registered_nodes[node.name].corresponding_piston
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and stack[stackid + 1].node.param2 == node.param2)
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or (stack[stackid - 1]
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and stack[stackid - 1].node.name == minetest.registered_nodes[node.name].corresponding_piston
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and stack[stackid - 1].node.param2 == node.param2) then
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return false
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end
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return true
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end
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local piston_pusher_up_down_get_stopper = function (node, dir, stack, stackid)
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if (stack[stackid + 1]
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and stack[stackid + 1].node.name == minetest.registered_nodes[node.name].corresponding_piston)
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or (stack[stackid - 1]
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and stack[stackid - 1].node.name == minetest.registered_nodes[node.name].corresponding_piston) then
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return false
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end
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return true
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end
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mesecon.register_mvps_stopper("mesecons_pistons:piston_pusher_normal", piston_pusher_get_stopper)
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mesecon.register_mvps_stopper("mesecons_pistons:piston_pusher_sticky", piston_pusher_get_stopper)
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-- Register pistons as stoppers if they would be seperated from the stopper
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local piston_up_down_get_stopper = function (node, dir, stack, stackid)
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if (stack[stackid + 1]
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and stack[stackid + 1].node.name == minetest.registered_nodes[node.name].mesecons_piston.pusher)
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or (stack[stackid - 1]
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and stack[stackid - 1].node.name == minetest.registered_nodes[node.name].mesecons_piston.pusher) then
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return false
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end
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return true
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end
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local piston_get_stopper = function (node, dir, stack, stackid)
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local pistonspec = minetest.registered_nodes[node.name].mesecons_piston
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local dir = pistonspec.dir(node)
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local pusherpos = vector.add(stack[stackid].pos, dir)
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local pushernode = minetest.get_node(pusherpos)
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if minetest.registered_nodes[node.name].mesecons_piston.pusher == pushernode.name then
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for _, s in ipairs(stack) do
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if vector.equals(s.pos, pusherpos) -- pusher is also to be pushed
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and s.node.param2 == node.param2 then
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return false
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end
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end
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end
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return true
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end
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mesecon.register_mvps_stopper("mesecons_pistons:piston_normal_on", piston_get_stopper)
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mesecon.register_mvps_stopper("mesecons_pistons:piston_sticky_on", piston_get_stopper)
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--craft recipes
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minetest.register_craft({
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output = "mesecons_pistons:piston_normal_off 2",
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recipe = {
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{"group:wood", "group:wood", "group:wood"},
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{"default:cobble", "default:steel_ingot", "default:cobble"},
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{"default:cobble", "group:mesecon_conductor_craftable", "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_off",
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recipe = {
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{"mesecons_materials:glue"},
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{"mesecons_pistons:piston_normal_off"},
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}
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})
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