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Nodebox piston pushers! Fix a few piston bugs such as pistons pushing pistons, pistons pushing blocks into pushers causing blocks to get deleted, and many more. As a side effect, players can no longer simply walk through piston pushers. Additionally, pistons will only remove their own pushers, and not those of neighboring pistons as well. Remove ENABLE_PISTON_ANIMATION option (not compatible with nodebox piston pushers).

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This commit is contained in:
Anthony Zhang 2012-07-20 16:27:43 -04:00
parent d3a4c2cb34
commit 9736b0f61e
2 changed files with 125 additions and 121 deletions
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3
mesecons/settings.lua
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@ -1,4 +1,3 @@
-- SETTINGS -- SETTINGS
ENABLE_PISTON_ANIMATION=true
BLINKY_PLANT_INTERVAL=3 BLINKY_PLANT_INTERVAL=3
ENABLE_TEMPEREST=true ENABLE_TEMPEREST=false

243
mesecons_pistons/init.lua
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@ -1,18 +1,42 @@
--PISTONS --PISTONS
--registration normal one: --registration normal one:
minetest.register_node("mesecons_pistons:piston_normal", { minetest.register_node("mesecons_pistons:piston_normal", {
description = "Piston",
tile_images = {"jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_side.png"}, tile_images = {"jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_tb.png", "jeija_piston_side.png"},
groups = {cracky=3}, groups = {cracky=3},
paramtype2="facedir", paramtype2 = "facedir",
description="Piston", after_dig_node = function(pos, oldnode)
after_dig_node = function(pos) local dir = mesecon:piston_get_direction(oldnode)
local objs = minetest.env:get_objects_inside_radius(pos, 2) pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node to check
for k, obj in pairs(objs) do
if obj:get_entity_name() == "mesecons_pistons:piston_pusher_normal" then --ensure piston is extended
obj:remove() local checknode = minetest.env:get_node(pos)
if checknode.name == "mesecons_pistons:piston_pusher_normal" then
if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
minetest.env:remove_node(pos) --remove the pusher
end end
end end
end end,
})
--registration sticky one:
minetest.register_node("mesecons_pistons:piston_sticky", {
description = "Sticky Piston",
tile_images = {"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"},
groups = {cracky=3},
paramtype2 = "facedir",
after_dig_node = function(pos, oldnode)
local dir = mesecon:piston_get_direction(oldnode)
pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node to check
--ensure piston is extended
local checknode = minetest.env:get_node(pos)
if checknode.name == "mesecons_pistons:piston_pusher_sticky" then
if checknode.param2 == oldnode.param2 then --pusher is facing the same direction as the piston
minetest.env:remove_node(pos) --remove the pusher
end
end
end,
}) })
minetest.register_craft({ minetest.register_craft({
@ -24,22 +48,6 @@ minetest.register_craft({
} }
}) })
--registration sticky one:
minetest.register_node("mesecons_pistons:piston_sticky", {
tile_images = {"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"},
groups = {cracky=3},
paramtype2="facedir",
description="Sticky Piston",
after_dig_node = function(pos)
local objs = minetest.env:get_objects_inside_radius(pos, 2)
for k, obj in pairs(objs) do
if obj:get_entity_name() == "mesecons_pistons:piston_pusher_sticky" then
obj:remove()
end
end
end
})
minetest.register_craft({ minetest.register_craft({
output = "mesecons_pistons:piston_sticky", output = "mesecons_pistons:piston_sticky",
recipe = { recipe = {
@ -48,31 +56,65 @@ minetest.register_craft({
} }
}) })
-- get push direction minetest.register_node("mesecons_pistons:piston_pusher_normal", {
function mesecon:piston_get_direction(pos) drawtype = "nodebox",
local param2 = minetest.env:get_node(pos).param2 tile_images = {"jeija_piston_pusher_normal.png"},
if param2 == 3 then paramtype = "light",
return {x=1, y=0, z=0} paramtype2 = "facedir",
elseif param2 == 2 then diggable = false,
return {x=0, y=0, z=1} selection_box = {
elseif param2 == 1 then type = "fixed",
return {x=-1, y=0, z=0} fixed = {
else --param2 == 0 {-0.2, -0.2, -0.3, 0.2, 0.2, 0.5},
return {x=0, y=0, z=-1} {-0.5, -0.5, -0.5, 0.5, 0.5, -0.3},
end },
end },
node_box = {
type = "fixed",
fixed = {
{-0.2, -0.2, -0.3, 0.2, 0.2, 0.5},
{-0.5, -0.5, -0.5, 0.5, 0.5, -0.3},
},
},
})
mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_normal")
mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_sticky")
minetest.register_node("mesecons_pistons:piston_pusher_sticky", {
drawtype = "nodebox",
tile_images = {"jeija_piston_pusher_sticky.png"},
paramtype = "light",
paramtype2 = "facedir",
diggable = false,
selection_box = {
type = "fixed",
fixed = {
{-0.2, -0.2, -0.3, 0.2, 0.2, 0.5},
{-0.5, -0.5, -0.5, 0.5, 0.5, -0.3},
},
},
node_box = {
type = "fixed",
fixed = {
{-0.2, -0.2, -0.3, 0.2, 0.2, 0.5},
{-0.5, -0.5, -0.5, 0.5, 0.5, -0.3},
},
},
})
-- Push action -- Push action
mesecon:register_on_signal_on(function (pos, node) mesecon:register_on_signal_on(function(pos, node)
if node.name ~= "mesecons_pistons:piston_normal" and node.name ~= "mesecons_pistons:piston_sticky" then if node.name ~= "mesecons_pistons:piston_normal" and node.name ~= "mesecons_pistons:piston_sticky" then
return return
end end
local dir = mesecon:piston_get_direction(pos) local dir = mesecon:piston_get_direction(node)
pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node being pushed
--determine the number of nodes that need to be pushed --determine the number of nodes that need to be pushed
local count = 0 local count = 0
local checkpos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --first node being pushed local checkpos = {x=pos.x, y=pos.y, z=pos.z} --first node being pushed
local checknode = minetest.env:get_node(checkpos) local checknode = minetest.env:get_node(checkpos)
while checknode.name ~= "air" while checknode.name ~= "air"
and checknode.name ~= "ignore" and checknode.name ~= "ignore"
@ -87,32 +129,24 @@ mesecon:register_on_signal_on(function (pos, node)
end end
--check for collision with stopper --check for collision with stopper
checkpos.x, checkpos.y, checkpos.z = checkpos.x + dir.x, checkpos.y + dir.y, checkpos.z + dir.z
checknode = minetest.env:get_node(checkpos) checknode = minetest.env:get_node(checkpos)
if mesecon:is_mvps_stopper(checknode.name) then if mesecon:is_mvps_stopper(checknode.name) then
return return
end end
checkpos.x, checkpos.y, checkpos.z = checkpos.x + dir.x, checkpos.y + dir.y, checkpos.z + dir.z
end end
--add pusher entity checknode = minetest.env:get_node(pos)
local object minetest.env:dig_node(pos) --remove the first node
if node.name == "mesecons_pistons:piston_normal" then --normal piston
object = minetest.env:add_entity(pos, "mesecons_pistons:piston_pusher_normal")
else --sticky piston
object = minetest.env:add_entity(pos, "mesecons_pistons:piston_pusher_sticky")
end
--move pusher forward --add pusher
if ENABLE_PISTON_ANIMATION then if node.name == "mesecons_pistons:piston_normal" then
object:setvelocity({x=dir.x * 4, y=dir.y * 4, z=dir.z * 4}) minetest.env:add_node(pos, {name="mesecons_pistons:piston_pusher_normal", param2=node.param2})
else else
object:moveto(pos, false) minetest.env:add_node(pos, {name="mesecons_pistons:piston_pusher_sticky", param2=node.param2})
end end
--move nodes forward --move nodes forward
pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z --move to first node being pushed
checknode = minetest.env:get_node(pos)
minetest.env:dig_node(pos) --remove the first node
for i = 1, count do for i = 1, count do
--move to the next node --move to the next node
pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z pos.x, pos.y, pos.z = pos.x + dir.x, pos.y + dir.y, pos.z + dir.z
@ -126,78 +160,49 @@ end)
--Pull action (sticky only) --Pull action (sticky only)
mesecon:register_on_signal_off(function(pos, node) mesecon:register_on_signal_off(function(pos, node)
if node.name ~= "mesecons_pistons:piston_sticky" and node.name ~= "mesecons_pistons:piston_normal" then if node.name ~= "mesecons_pistons:piston_normal" and node.name ~= "mesecons_pistons:piston_sticky" then
return return
end end
--remove piston pusher local dir = mesecon:piston_get_direction(node)
local found = false --whether or not the piston was extended 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
local objects = minetest.env:get_objects_inside_radius(pos, 2)
for k, object in pairs(objects) do --ensure piston is extended
local name = object:get_luaentity().name local checknode = minetest.env:get_node(pos)
if name == "mesecons_pistons:piston_pusher_normal" or name == "mesecons_pistons:piston_pusher_sticky" then if checknode.name ~= "mesecons_pistons:piston_pusher_normal" and checknode.name ~= "mesecons_pistons:piston_pusher_sticky" then
found = true return
object:remove() end
end if checknode.param2 ~= node.param2 then --pusher is not facing the same direction as the piston
return --piston is not extended
end end
--retract piston --retract piston
if found and node.name == "mesecons_pistons:piston_sticky" then minetest.env:remove_node(pos) --remove pusher
local dir = mesecon:piston_get_direction(pos) if node.name == "mesecons_pistons:piston_sticky" then --retract block
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 local checkpos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to the node to be retracted
local checknode = minetest.env:get_node(pos) checknode = minetest.env:get_node(checkpos)
if checknode.name == "air" if checknode.name ~= "air"
or checknode.name == "default:water_source" and checknode.name ~= "ignore"
or checknode.name == "default:water_flowing" and checknode.name ~= "default:water_source"
or checknode.name == "default:lava_source" and checknode.name ~= "default:water_flowing"
or checknode.name == "default:lava_flowing" then and checknode.name ~= "default:lava_source"
local checkpos = {x=pos.x + dir.x, y=pos.y + dir.y, z=pos.z + dir.z} --move to the node to be retracted and checknode.name ~= "default:lava_flowing"
local checknode = minetest.env:get_node(checkpos) and not mesecon:is_mvps_stopper(checknode.name) then
if checknode.name ~= "air" minetest.env:place_node(pos, checknode)
and checknode.name ~= "ignore" minetest.env:dig_node(checkpos)
and checknode.name ~= "default:water_source"
and checknode.name ~= "default:water_flowing"
and checknode.name ~= "default:lava_source"
and checknode.name ~= "default:lava_flowing" then
minetest.env:place_node(pos, checknode)
minetest.env:dig_node(checkpos)
end
end end
end end
end) end)
--Piston Animation -- get push direction
local PISTON_PUSHER_NORMAL = { function mesecon:piston_get_direction(node)
physical = false, if node.param2 == 3 then
visual = "sprite", return {x=1, y=0, z=0}
textures = {"default_wood.png", "default_wood.png", "jeija_piston_pusher_normal.png", "jeija_piston_pusher_normal.png", "jeija_piston_pusher_normal.png", "jeija_piston_pusher_normal.png"}, elseif node.param2 == 2 then
collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5}, return {x=0, y=0, z=1}
visual = "cube", elseif node.param2 == 1 then
timer=0, return {x=-1, y=0, z=0}
} else --node.param2 == 0
return {x=0, y=0, z=-1}
function PISTON_PUSHER_NORMAL:on_step(dtime)
self.timer = self.timer+dtime
if self.timer >= 0.24 then
self.object:setvelocity({x=0, y=0, z=0})
end end
end end
local PISTON_PUSHER_STICKY = {
physical = false,
visual = "sprite",
textures = {"default_wood.png", "default_wood.png", "jeija_piston_pusher_sticky.png", "jeija_piston_pusher_sticky.png", "jeija_piston_pusher_sticky.png", "jeija_piston_pusher_sticky.png"},
collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
visual = "cube",
timer = 0,
}
function PISTON_PUSHER_STICKY:on_step(dtime)
self.timer=self.timer+dtime
if self.timer >= 0.24 then
self.object:setvelocity({x=0, y=0, z=0})
end
end
minetest.register_entity("mesecons_pistons:piston_pusher_normal", PISTON_PUSHER_NORMAL)
minetest.register_entity("mesecons_pistons:piston_pusher_sticky", PISTON_PUSHER_STICKY)