-- Get mesecon rules of pistons piston_rules = {{x=0, y=0, z=1}, --everything apart from z- (pusher side) {x=1, y=0, z=0}, {x=-1, y=0, z=0}, {x=1, y=1, z=0}, {x=1, y=-1, z=0}, {x=-1, y=1, z=0}, {x=-1, y=-1, z=0}, {x=0, y=1, z=1}, {x=0, y=-1, z=1}} local piston_up_rules = {{x=0, y=0, z=-1}, --everything apart from y+ (pusher side) {x=1, y=0, z=0}, {x=-1, y=0, z=0}, {x=0, y=0, z=1}, {x=1, y=-1, z=0}, {x=-1, y=-1, z=0}, {x=0, y=-1, z=1}, {x=0, y=-1, z=-1}} local piston_down_rules = {{x=0, y=0, z=-1}, --everything apart from y- (pusher side) {x=1, y=0, z=0}, {x=-1, y=0, z=0}, {x=0, y=0, z=1}, {x=1, y=1, z=0}, {x=-1, y=1, z=0}, {x=0, y=1, z=1}, {x=0, y=1, z=-1}} local piston_get_rules = function (node) local rules = piston_rules for i = 1, node.param2 do rules = mesecon:rotate_rules_left(rules) end return rules end piston_facedir_direction = function (node) local rules = {{x = 0, y = 0, z = -1}} for i = 1, node.param2 do rules = mesecon:rotate_rules_left(rules) end return rules[1] end piston_get_direction = function(dir, node) if type(dir) == "function" then return dir(node) else return dir end end local piston_remove_pusher = function(pos, node) pistonspec = minetest.registered_nodes[node.name].mesecons_piston if pushername == pistonspec.pusher then --make sure there actually is a pusher (for compatibility reasons mainly) return end dir = piston_get_direction(pistonspec.dir, node) local pusherpos = mesecon:addPosRule(pos, dir) local pushername = minetest.env:get_node(pusherpos).name minetest.env:remove_node(pusherpos) minetest.sound_play("piston_retract", { pos = pos, max_hear_distance = 20, gain = 0.3, }) nodeupdate(pusherpos) end local piston_on = function(pos, node) local pistonspec = minetest.registered_nodes[node.name].mesecons_piston local dir = piston_get_direction(pistonspec.dir, node) local np = mesecon:addPosRule(pos, dir) local success, stack, oldstack = mesecon:mvps_push(np, dir, PISTON_MAXIMUM_PUSH) if success then minetest.env:add_node(pos, {param2 = node.param2, name = pistonspec.onname}) minetest.env:add_node(np, {param2 = node.param2, name = pistonspec.pusher}) minetest.sound_play("piston_extend", { pos = pos, max_hear_distance = 20, gain = 0.3, }) mesecon:mvps_process_stack (stack) mesecon:mvps_move_objects (np, dir, oldstack) end end local piston_off = function(pos, node) local pistonspec = minetest.registered_nodes[node.name].mesecons_piston minetest.env:add_node(pos, {param2 = node.param2, name = pistonspec.offname}) piston_remove_pusher(pos, node) if pistonspec.sticky then dir = piston_get_direction(pistonspec.dir, node) pullpos = mesecon:addPosRule(pos, dir) stack = mesecon:mvps_pull_single(pullpos, dir) mesecon:mvps_process_stack(pos, dir, stack) end end local piston_orientate = function(pos, placer) -- not placed by player if not placer then return end -- placer pitch in degrees local pitch = placer:get_look_pitch() * (180 / math.pi) local node = minetest.env:get_node(pos) local pistonspec = minetest.registered_nodes[node.name].mesecons_piston if pitch > 55 then --looking upwards minetest.env:add_node(pos, {name=pistonspec.piston_down}) elseif pitch < -55 then --looking downwards minetest.env:add_node(pos, {name=pistonspec.piston_up}) end end -- Horizontal pistons local pt = 3/16 -- pusher thickness local piston_pusher_box = { type = "fixed", fixed = { {-2/16, -2/16, -.5 + pt, 2/16, 2/16, .5 + pt}, {-.5 , -.5 , -.5 , .5 , .5 , -.5 + pt}, } } local piston_on_box = { type = "fixed", fixed = { {-.5, -.5, -.5 + pt, .5, .5, .5} } } -- Normal (non-sticky) ones: local pistonspec_normal = { offname = "mesecons_pistons:piston_normal_off", onname = "mesecons_pistons:piston_normal_on", dir = piston_facedir_direction, pusher = "mesecons_pistons:piston_pusher_normal", piston_down = "mesecons_pistons:piston_down_normal_off", piston_up = "mesecons_pistons:piston_up_normal_off", } -- offstate minetest.register_node("mesecons_pistons:piston_normal_off", { description = "Piston", tiles = { "mesecons_piston_top.png", "mesecons_piston_bottom.png", "mesecons_piston_left.png", "mesecons_piston_right.png", "mesecons_piston_back.png", "mesecons_piston_pusher_front.png" }, groups = {cracky = 3}, paramtype2 = "facedir", after_place_node = piston_orientate, mesecons_piston = pistonspec_normal, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_on = piston_on, rules = piston_get_rules }} }) -- onstate minetest.register_node("mesecons_pistons:piston_normal_on", { drawtype = "nodebox", tiles = { "mesecons_piston_top.png", "mesecons_piston_bottom.png", "mesecons_piston_left.png", "mesecons_piston_right.png", "mesecons_piston_back.png", "mesecons_piston_on_front.png" }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype = "light", paramtype2 = "facedir", drop = "mesecons_pistons:piston_normal_off", after_dig_node = piston_remove_pusher, node_box = piston_on_box, selection_box = piston_on_box, mesecons_piston = pistonspec_normal, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_off = piston_off, rules = piston_get_rules }} }) -- pusher minetest.register_node("mesecons_pistons:piston_pusher_normal", { drawtype = "nodebox", tiles = { "mesecons_piston_pusher_top.png", "mesecons_piston_pusher_bottom.png", "mesecons_piston_pusher_left.png", "mesecons_piston_pusher_right.png", "mesecons_piston_pusher_back.png", "mesecons_piston_pusher_front.png" }, paramtype = "light", paramtype2 = "facedir", diggable = false, corresponding_piston = "mesecons_pistons:piston_normal_on", selection_box = piston_pusher_box, node_box = piston_pusher_box, }) -- Sticky ones local pistonspec_sticky = { offname = "mesecons_pistons:piston_sticky_off", onname = "mesecons_pistons:piston_sticky_on", dir = piston_facedir_direction, pusher = "mesecons_pistons:piston_pusher_sticky", sticky = true, piston_down = "mesecons_pistons:piston_down_sticky_off", piston_up = "mesecons_pistons:piston_up_sticky_off", } -- offstate minetest.register_node("mesecons_pistons:piston_sticky_off", { description = "Sticky Piston", tiles = { "mesecons_piston_top.png", "mesecons_piston_bottom.png", "mesecons_piston_left.png", "mesecons_piston_right.png", "mesecons_piston_back.png", "mesecons_piston_pusher_front_sticky.png" }, groups = {cracky = 3}, paramtype2 = "facedir", after_place_node = piston_orientate, mesecons_piston = pistonspec_sticky, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_on = piston_on, rules = piston_get_rules }} }) -- onstate minetest.register_node("mesecons_pistons:piston_sticky_on", { drawtype = "nodebox", tiles = { "mesecons_piston_top.png", "mesecons_piston_bottom.png", "mesecons_piston_left.png", "mesecons_piston_right.png", "mesecons_piston_back.png", "mesecons_piston_on_front.png" }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype = "light", paramtype2 = "facedir", drop = "mesecons_pistons:piston_normal_off", after_dig_node = piston_remove_pusher, node_box = piston_on_box, selection_box = piston_on_box, mesecons_piston = pistonspec_sticky, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_off = piston_off, rules = piston_get_rules }} }) -- pusher minetest.register_node("mesecons_pistons:piston_pusher_sticky", { drawtype = "nodebox", tiles = { "mesecons_piston_pusher_top.png", "mesecons_piston_pusher_bottom.png", "mesecons_piston_pusher_left.png", "mesecons_piston_pusher_right.png", "mesecons_piston_pusher_back.png", "mesecons_piston_pusher_front_sticky.png" }, paramtype = "light", paramtype2 = "facedir", diggable = false, corresponding_piston = "mesecons_pistons:piston_sticky_on", selection_box = piston_pusher_box, node_box = piston_pusher_box, }) -- -- -- UP -- -- local piston_up_pusher_box = { type = "fixed", fixed = { {-2/16, -.5 - pt, -2/16, 2/16, .5 - pt, 2/16}, {-.5 , .5 - pt, -.5 , .5 , .5 , .5}, } } local piston_up_on_box = { type = "fixed", fixed = { {-.5, -.5, -.5 , .5, .5-pt, .5} } } -- Normal local pistonspec_normal_up = { offname = "mesecons_pistons:piston_up_normal_off", onname = "mesecons_pistons:piston_up_normal_on", dir = {x = 0, y = 1, z = 0}, pusher = "mesecons_pistons:piston_up_pusher_normal" } -- offstate minetest.register_node("mesecons_pistons:piston_up_normal_off", { tiles = { "mesecons_piston_pusher_front.png", "mesecons_piston_back.png", "mesecons_piston_left.png^[transformR270", "mesecons_piston_right.png^[transformR90", "mesecons_piston_bottom.png", "mesecons_piston_top.png^[transformR180", }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype2 = "facedir", drop = "mesecons_pistons:piston_normal_off", mesecons_piston = pistonspec_normal_up, mesecons = {effector={ action_on = piston_on, rules = piston_up_rules, }} }) -- onstate minetest.register_node("mesecons_pistons:piston_up_normal_on", { drawtype = "nodebox", tiles = { "mesecons_piston_on_front.png", "mesecons_piston_back.png", "mesecons_piston_left.png^[transformR270", "mesecons_piston_right.png^[transformR90", "mesecons_piston_bottom.png", "mesecons_piston_top.png^[transformR180", }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype = "light", paramtype2 = "facedir", drop = "mesecons_pistons:piston_normal_off", after_dig_node = piston_remove_pusher, node_box = piston_up_on_box, selection_box = piston_up_on_box, mesecons_piston = pistonspec_normal_up, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_off = piston_off, rules = piston_up_rules, }} }) -- pusher minetest.register_node("mesecons_pistons:piston_up_pusher_normal", { drawtype = "nodebox", tiles = { "mesecons_piston_pusher_front.png", "mesecons_piston_pusher_back.png", "mesecons_piston_pusher_left.png^[transformR270", "mesecons_piston_pusher_right.png^[transformR90", "mesecons_piston_pusher_bottom.png", "mesecons_piston_pusher_top.png^[transformR180", }, paramtype = "light", paramtype2 = "facedir", diggable = false, corresponding_piston = "mesecons_pistons:piston_up_normal_on", selection_box = piston_up_pusher_box, node_box = piston_up_pusher_box, }) -- Sticky local pistonspec_sticky_up = { offname = "mesecons_pistons:piston_up_sticky_off", onname = "mesecons_pistons:piston_up_sticky_on", dir = {x = 0, y = 1, z = 0}, pusher = "mesecons_pistons:piston_up_pusher_sticky", sticky = true } -- offstate minetest.register_node("mesecons_pistons:piston_up_sticky_off", { tiles = { "mesecons_piston_pusher_front_sticky.png", "mesecons_piston_back.png", "mesecons_piston_left.png^[transformR270", "mesecons_piston_right.png^[transformR90", "mesecons_piston_bottom.png", "mesecons_piston_top.png^[transformR180", "mesecons_piston_tb.png" }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype2 = "facedir", drop = "mesecons_pistons:piston_sticky_off", mesecons_piston = pistonspec_sticky_up, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_on = piston_on, rules = piston_up_rules, }} }) -- onstate minetest.register_node("mesecons_pistons:piston_up_sticky_on", { drawtype = "nodebox", tiles = { "mesecons_piston_on_front.png", "mesecons_piston_back.png", "mesecons_piston_left.png^[transformR270", "mesecons_piston_right.png^[transformR90", "mesecons_piston_bottom.png", "mesecons_piston_top.png^[transformR180", }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype = "light", paramtype2 = "facedir", drop = "mesecons_pistons:piston_normal_off", after_dig_node = piston_remove_pusher, node_box = piston_up_on_box, selection_box = piston_up_on_box, mesecons_piston = pistonspec_sticky_up, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_off = piston_off, rules = piston_up_rules, }} }) -- pusher minetest.register_node("mesecons_pistons:piston_up_pusher_sticky", { drawtype = "nodebox", tiles = { "mesecons_piston_pusher_front_sticky.png", "mesecons_piston_pusher_back.png", "mesecons_piston_pusher_left.png^[transformR270", "mesecons_piston_pusher_right.png^[transformR90", "mesecons_piston_pusher_bottom.png", "mesecons_piston_pusher_top.png^[transformR180", }, paramtype = "light", paramtype2 = "facedir", diggable = false, corresponding_piston = "mesecons_pistons:piston_up_sticky_on", selection_box = piston_up_pusher_box, node_box = piston_up_pusher_box, }) -- -- -- DOWN -- -- local piston_down_pusher_box = { type = "fixed", fixed = { {-2/16, -.5 + pt, -2/16, 2/16, .5 + pt, 2/16}, {-.5 , -.5 , -.5 , .5 , -.5 + pt, .5}, } } local piston_down_on_box = { type = "fixed", fixed = { {-.5, -.5+pt, -.5 , .5, .5, .5} } } -- Normal local pistonspec_normal_down = { offname = "mesecons_pistons:piston_down_normal_off", onname = "mesecons_pistons:piston_down_normal_on", dir = {x = 0, y = -1, z = 0}, pusher = "mesecons_pistons:piston_down_pusher_normal", } -- offstate minetest.register_node("mesecons_pistons:piston_down_normal_off", { tiles = { "mesecons_piston_back.png", "mesecons_piston_pusher_front.png", "mesecons_piston_left.png^[transformR90", "mesecons_piston_right.png^[transformR270", "mesecons_piston_bottom.png^[transformR180", "mesecons_piston_top.png", }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype2 = "facedir", drop = "mesecons_pistons:piston_normal_off", mesecons_piston = pistonspec_normal_down, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_on = piston_on, rules = piston_down_rules, }} }) -- onstate minetest.register_node("mesecons_pistons:piston_down_normal_on", { drawtype = "nodebox", tiles = { "mesecons_piston_back.png", "mesecons_piston_on_front.png", "mesecons_piston_left.png^[transformR90", "mesecons_piston_right.png^[transformR270", "mesecons_piston_bottom.png^[transformR180", "mesecons_piston_top.png", }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype = "light", paramtype2 = "facedir", drop = "mesecons_pistons:piston_normal_off", after_dig_node = piston_remove_pusher, node_box = piston_down_on_box, selection_box = piston_down_on_box, mesecons_piston = pistonspec_normal_down, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_off = piston_off, rules = piston_down_rules, }} }) -- pusher minetest.register_node("mesecons_pistons:piston_down_pusher_normal", { drawtype = "nodebox", tiles = { "mesecons_piston_pusher_back.png", "mesecons_piston_pusher_front.png", "mesecons_piston_pusher_left.png^[transformR90", "mesecons_piston_pusher_right.png^[transformR270", "mesecons_piston_pusher_bottom.png^[transformR180", "mesecons_piston_pusher_top.png", }, paramtype = "light", paramtype2 = "facedir", diggable = false, corresponding_piston = "mesecons_pistons:piston_down_normal_on", selection_box = piston_down_pusher_box, node_box = piston_down_pusher_box, }) -- Sticky local pistonspec_sticky_down = { onname = "mesecons_pistons:piston_down_sticky_on", offname = "mesecons_pistons:piston_down_sticky_off", dir = {x = 0, y = -1, z = 0}, pusher = "mesecons_pistons:piston_down_pusher_sticky", sticky = true } -- offstate minetest.register_node("mesecons_pistons:piston_down_sticky_off", { tiles = { "mesecons_piston_back.png", "mesecons_piston_pusher_front_sticky.png", "mesecons_piston_left.png^[transformR90", "mesecons_piston_right.png^[transformR270", "mesecons_piston_bottom.png^[transformR180", "mesecons_piston_top.png", }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype2 = "facedir", drop = "mesecons_pistons:piston_sticky_off", mesecons_piston = pistonspec_sticky_down, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_on = piston_on, rules = piston_down_rules, }} }) -- onstate minetest.register_node("mesecons_pistons:piston_down_sticky_on", { drawtype = "nodebox", tiles = { "mesecons_piston_back.png", "mesecons_piston_on_front.png", "mesecons_piston_left.png^[transformR90", "mesecons_piston_right.png^[transformR270", "mesecons_piston_bottom.png^[transformR180", "mesecons_piston_top.png", }, inventory_image = "mesecons_piston_top.png", wield_image = "mesecons_piston_top.png", groups = {cracky = 3, not_in_creative_inventory = 1}, paramtype = "light", paramtype2 = "facedir", drop = "mesecons_pistons:piston_sticky_off", after_dig_node = piston_remove_pusher, node_box = piston_down_on_box, selection_box = piston_down_on_box, mesecons_piston = pistonspec_sticky_down, sounds = default.node_sound_wood_defaults(), mesecons = {effector={ action_off = piston_off, rules = piston_down_rules, }} }) -- pusher minetest.register_node("mesecons_pistons:piston_down_pusher_sticky", { drawtype = "nodebox", tiles = { "mesecons_piston_pusher_back.png", "mesecons_piston_pusher_front_sticky.png", "mesecons_piston_pusher_left.png^[transformR90", "mesecons_piston_pusher_right.png^[transformR270", "mesecons_piston_pusher_bottom.png^[transformR180", "mesecons_piston_pusher_top.png", }, paramtype = "light", paramtype2 = "facedir", diggable = false, corresponding_piston = "mesecons_pistons:piston_down_sticky_on", selection_box = piston_down_pusher_box, node_box = piston_down_pusher_box, }) -- Register pushers as stoppers if they would be seperated from the piston local piston_pusher_get_stopper = function (node, dir, stack, stackid) if (stack[stackid + 1] and stack[stackid + 1].node.name == minetest.registered_nodes[node.name].corresponding_piston and stack[stackid + 1].node.param2 == node.param2) or (stack[stackid - 1] and stack[stackid - 1].node.name == minetest.registered_nodes[node.name].corresponding_piston and stack[stackid - 1].node.param2 == node.param2) then return false end return true end local piston_pusher_up_down_get_stopper = function (node, dir, stack, stackid) if (stack[stackid + 1] and stack[stackid + 1].node.name == minetest.registered_nodes[node.name].corresponding_piston) or (stack[stackid - 1] and stack[stackid - 1].node.name == minetest.registered_nodes[node.name].corresponding_piston) then return false end return true end mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_normal", piston_pusher_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_sticky", piston_pusher_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_up_pusher_normal", piston_pusher_up_down_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_up_pusher_sticky", piston_pusher_up_down_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_down_pusher_normal", piston_pusher_up_down_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_down_pusher_sticky", piston_pusher_up_down_get_stopper) -- Register pistons as stoppers if they would be seperated from the stopper local piston_up_down_get_stopper = function (node, dir, stack, stackid) if (stack[stackid + 1] and stack[stackid + 1].node.name == minetest.registered_nodes[node.name].mesecons_piston.pusher) or (stack[stackid - 1] and stack[stackid - 1].node.name == minetest.registered_nodes[node.name].mesecons_piston.pusher) then return false end return true end local piston_get_stopper = function (node, dir, stack, stackid) pistonspec = minetest.registered_nodes[node.name].mesecons_piston dir = piston_get_direction(pistonspec.dir, node) local pusherpos = mesecon:addPosRule(stack[stackid].pos, dir) local pushernode = minetest.env:get_node(pusherpos) if minetest.registered_nodes[node.name].mesecons_piston.pusher == pushernode.name then for _, s in ipairs(stack) do if mesecon:cmpPos(s.pos, pusherpos) -- pusher is also to be pushed and s.node.param2 == node.param2 then return false end end end return true end mesecon:register_mvps_stopper("mesecons_pistons:piston_normal_on", piston_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_sticky_on", piston_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_up_normal_on", piston_up_down_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_up_sticky_on", piston_up_down_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_down_normal_on", piston_up_down_get_stopper) mesecon:register_mvps_stopper("mesecons_pistons:piston_down_sticky_on", piston_up_down_get_stopper) --craft recipes minetest.register_craft({ output = "mesecons_pistons:piston_normal_off 2", recipe = { {"default:wood", "default:wood", "default:wood"}, {"default:cobble", "default:steel_ingot", "default:cobble"}, {"default:cobble", "group:mesecon_conductor_craftable", "default:cobble"}, } }) minetest.register_craft({ output = "mesecons_pistons:piston_sticky_off", recipe = { {"mesecons_materials:glue"}, {"mesecons_pistons:piston_normal_off"}, } })