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Make pistons and movestones move objects (push only yet)

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This commit is contained in:
Jeija 2013-04-02 11:56:37 +02:00
parent e789794c75
commit 3b38bbcaf2
4 changed files with 126 additions and 41 deletions
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14
mesecons/util.lua
View File

@ -22,3 +22,17 @@ end
function mesecon:cmpPos(p1, p2)
return (p1.x == p2.x and p1.y == p2.y and p1.z == p2.z)
end
function mesecon:tablecopy(table) -- deep table copy
local newtable = {}
for idx, item in pairs(table) do
if type(item) == "table" then
newtable[idx] = mesecon:tablecopy(item)
else
newtable[idx] = item
end
end
return newtable
end

38
mesecons_movestones/init.lua
View File

@ -79,6 +79,7 @@ minetest.register_entity("mesecons_movestones:movestone_entity", {
textures = {"jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_arrows.png", "jeija_movestone_arrows.png"},
collisionbox = {-0.5,-0.5,-0.5, 0.5, 0.5, 0.5},
visual = "cube",
lastdir = {x=0, y=0, z=0},
on_punch = function(self, hitter)
self.object:remove()
@ -90,21 +91,27 @@ minetest.register_entity("mesecons_movestones:movestone_entity", {
pos.x, pos.y, pos.z = math.floor(pos.x), math.floor(pos.y), math.floor(pos.z)
local direction = mesecon:get_movestone_direction(pos)
if not direction then
if not direction then -- no mesecon power
local name = minetest.env:get_node(pos).name
if name ~= "air" and name ~= "ignore" and minetest.registered_nodes[name].liquidtype == "none" then
mesecon:mvps_push(pos, direction, MOVESTONE_MAXIMUM_PUSH)
if name ~= "air" and name ~= "ignore"
and minetest.registered_nodes[name].liquidtype == "none" then
mesecon:mvps_push(pos, self.lastdir, MOVESTONE_MAXIMUM_PUSH)
end
minetest.env:add_node(pos, {name="mesecons_movestones:movestone"})
self.object:remove()
return
end
local np = mesecon:addPosRule(pos, direction)
if not mesecon:mvps_push(np, direction, MOVESTONE_MAXIMUM_PUSH) then
local success, stack, oldstack =
mesecon:mvps_push(pos, direction, MOVESTONE_MAXIMUM_PUSH)
if not success then -- Too large stack/stopper in the way
minetest.env:add_node(pos, {name="mesecons_movestones:movestone"})
self.object:remove()
return
else
mesecon:mvps_process_stack (stack)
mesecon:mvps_move_objects (pos, direction, oldstack)
self.lastdir = direction
end
self.object:setvelocity({x=direction.x*2, y=direction.y*2, z=direction.z*2})
@ -156,6 +163,7 @@ minetest.register_entity("mesecons_movestones:sticky_movestone_entity", {
textures = {"jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_movestone_side.png", "jeija_sticky_movestone.png", "jeija_sticky_movestone.png"},
collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
visual = "cube",
lastdir = {x=0, y=0, z=0},
on_punch = function(self, hitter)
self.object:remove()
@ -167,21 +175,27 @@ minetest.register_entity("mesecons_movestones:sticky_movestone_entity", {
pos.x, pos.y, pos.z = math.floor(pos.x), math.floor(pos.y), math.floor(pos.z)
local direction = mesecon:get_movestone_direction(pos)
if not direction then
if not direction then -- no mesecon power
local name = minetest.env:get_node(pos).name
if name ~= "air" and name ~= "ignore" and minetest.registered_nodes[name].liquidtype == "none" then
mesecon:mvps_push(pos, direction, MOVESTONE_MAXIMUM_PUSH)
if name ~= "air" and name ~= "ignore"
and minetest.registered_nodes[name].liquidtype == "none" then
mesecon:mvps_push(pos, self.lastdir, MOVESTONE_MAXIMUM_PUSH)
end
minetest.env:add_node(pos, {name="mesecons_movestones:sticky_movestone"})
self.object:remove()
return
end
local np = mesecon:addPosRule(pos, direction)
if not mesecon:mvps_push(np, direction, MOVESTONE_MAXIMUM_PUSH) then
local success, stack, oldstack =
mesecon:mvps_push(pos, direction, MOVESTONE_MAXIMUM_PUSH)
if not success then -- Too large stack/stopper in the way
minetest.env:add_node(pos, {name="mesecons_movestones:sticky_movestone"})
self.object:remove()
return
else
mesecon:mvps_process_stack (stack)
mesecon:mvps_move_objects (pos, direction, oldstack)
self.lastdir = direction
end
self.object:setvelocity({x=direction.x*2, y=direction.y*2, z=direction.z*2})
@ -190,3 +204,7 @@ minetest.register_entity("mesecons_movestones:sticky_movestone_entity", {
mesecon:mvps_pull_all(pos, direction)
end,
})
mesecon:register_mvps_unmov("mesecons_movestones:movestone_entity")
mesecon:register_mvps_unmov("mesecons_movestones:sticky_movestone_entity")

62
mesecons_mvps/init.lua
View File

@ -1,6 +1,7 @@
--register stoppers for movestones/pistons
mesecon.mvps_stoppers = {}
mesecon.mvps_unmov = {}
function mesecon:is_mvps_stopper(node, pushdir, stack, stackid)
local get_stopper = mesecon.mvps_stoppers[node.name]
@ -17,6 +18,15 @@ function mesecon:register_mvps_stopper(nodename, get_stopper)
mesecon.mvps_stoppers[nodename] = get_stopper
end
-- Objects that cannot be moved (e.g. movestones)
function mesecon:register_mvps_unmov(objectname)
mesecon.mvps_unmov[objectname] = true;
end
function mesecon:is_mvps_unmov(objectname)
return mesecon.mvps_unmov[objectname]
end
function mesecon:mvps_process_stack(stack)
-- update mesecons for placed nodes ( has to be done after all nodes have been added )
for _, n in ipairs(stack) do
@ -26,13 +36,12 @@ function mesecon:mvps_process_stack(stack)
end
end
function mesecon:mvps_push(pos, dir, maximum) -- pos: pos of mvps; dir: direction of push; maximum: maximum nodes to be pushed
np = {x = pos.x, y = pos.y, z = pos.z}
function mesecon:mvps_get_stack(pos, dir, maximum)
-- determine the number of nodes to be pushed
local np = {x = pos.x, y = pos.y, z = pos.z}
local nodes = {}
while true do
nn = minetest.env:get_node_or_nil(np)
local nn = minetest.env:get_node_or_nil(np)
if not nn or #nodes > maximum then
-- don't push at all, something is in the way (unloaded map or too many nodes)
return
@ -47,6 +56,11 @@ function mesecon:mvps_push(pos, dir, maximum) -- pos: pos of mvps; dir: directio
np = mesecon:addPosRule(np, dir)
end
return nodes
end
function mesecon:mvps_push(pos, dir, maximum) -- pos: pos of mvps; dir: direction of push; maximum: maximum nodes to be pushed
local nodes = mesecon:mvps_get_stack(pos, dir, maximum)
-- determine if one of the nodes blocks the push
for id, n in ipairs(nodes) do
@ -74,11 +88,12 @@ function mesecon:mvps_push(pos, dir, maximum) -- pos: pos of mvps; dir: directio
minetest.env:get_meta(np):from_table(n.meta)
end
local oldstack = mesecon:tablecopy(nodes)
for i in ipairs(nodes) do
nodes[i].pos = mesecon:addPosRule(nodes[i].pos, dir)
end
return true, nodes
return true, nodes, oldstack
end
function mesecon:mvps_pull_single(pos, dir) -- pos: pos of mvps; direction: direction of pull (matches push direction for sticky pistons)
@ -123,5 +138,42 @@ function mesecon:mvps_pull_all(pos, direction) -- pos: pos of mvps; direction: d
minetest.env:remove_node(oldpos)
end
function mesecon:mvps_move_objects(pos, dir, nodestack)
-- Move object at tip of stack
local pushpos = mesecon:addPosRule(pos, -- get pos at tip of stack
{x = dir.x * (#nodestack),
y = dir.y * (#nodestack),
z = dir.z * (#nodestack)})
local objects = minetest.env:get_objects_inside_radius(pushpos, 1)
for _, obj in ipairs(objects) do
local entity = obj:get_luaentity()
if not entity or not mesecon:is_mvps_unmov(entity.name) then
obj:setpos(mesecon:addPosRule(obj:getpos(), dir))
end
end
-- Move objects lying/standing on the stack (before it was pushed - oldstack)
local objects_above = {}
if tonumber(minetest.setting_get("movement_gravity")) > 0 and dir.y == 0 then
-- If gravity positive and dir horizontal, push players standing on the stack
for _, n in ipairs(nodestack) do
local p_above = mesecon:addPosRule(n.pos, {x=0, y=1, z=0})
local objects = minetest.env:get_objects_inside_radius(p_above, 1)
for _, obj in ipairs(objects) do
table.insert(objects_above, obj)
end
end
end
for _, obj in ipairs(objects_above) do
local entity = obj:get_luaentity()
if not entity or not mesecon:is_mvps_unmov(entity.name) then
obj:setpos(mesecon:addPosRule(obj:getpos(), dir))
end
end
end
mesecon:register_mvps_stopper("default:chest_locked")
mesecon:register_mvps_stopper("default:furnace")

7
mesecons_pistons/init.lua
View File

@ -70,13 +70,14 @@ end
local piston_on = function (pos, node)
local pistonspec = minetest.registered_nodes[node.name].mesecons_piston
dir = piston_get_direction(pistonspec.dir, node)
local dir = piston_get_direction(pistonspec.dir, node)
local np = mesecon:addPosRule(pos, dir)
success, stack = mesecon:mvps_push(np, dir, PISTON_MAXIMUM_PUSH)
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})
mesecon:mvps_process_stack (stack)
mesecon:mvps_move_objects (np, dir, oldstack)
end
end
@ -89,7 +90,7 @@ local piston_off = function (pos, node)
dir = piston_get_direction(pistonspec.dir, node)
pullpos = mesecon:addPosRule(pos, dir)
stack = mesecon:mvps_pull_single(pullpos, dir)
mesecon:mvps_process_stack(stack)
mesecon:mvps_process_stack(pos, dir, stack)
end
end