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MineClone2/mods/ITEMS/REDSTONE/mesecons_mvps/init.lua

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-- Register stoppers for pistons
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mesecon.mvps_stoppers={}
-- Register nodes which drop as item when pushed or pulled
mesecon.mvps_droppers={}
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function mesecon:is_mvps_stopper(node, pushdir, stack, stackid)
local get_stopper = mesecon.mvps_stoppers[node.name]
if type (get_stopper) == "function" then
get_stopper = get_stopper(node, pushdir, stack, stackid)
end
return get_stopper
end
function mesecon:register_mvps_stopper(nodename, get_stopper)
if get_stopper == nil then
get_stopper = true
end
mesecon.mvps_stoppers[nodename] = get_stopper
end
function mesecon:is_mvps_dropper(node, pushdir, stack, stackid)
local get_dropper = mesecon.mvps_droppers[node.name]
if type (get_dropper) == "function" then
get_dropper = get_dropper(node, pushdir, stack, stackid)
end
if not get_dropper then
get_dropper = minetest.get_item_group(node.name, "dig_by_piston") == 1
end
return get_dropper
end
function mesecon:register_mvps_dropper(nodename, get_dropper)
if get_dropper == nil then
get_dropper = true
end
mesecon.mvps_droppers[nodename] = get_dropper
end
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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
core.check_for_falling(n.pos)
mesecon.on_placenode(n.pos, minetest.get_node(n.pos))
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mesecon:update_autoconnect(n.pos)
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}
-- determine the number of nodes to be pushed
local nodes = {}
while true do
nn = minetest.get_node_or_nil(np)
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if not nn or #nodes > maximum then
-- don't push at all, something is in the way (unloaded map or too many nodes)
return
end
if nn.name == "air"
or minetest.registered_nodes[nn.name].liquidtype ~= "none" then --is liquid
break
end
table.insert (nodes, {node = nn, pos = np})
np = mesecon:addPosRule(np, dir)
end
-- determine if one of the nodes blocks the push
for id, n in ipairs(nodes) do
if mesecon:is_mvps_stopper(n.node, dir, nodes, id) then
return
end
end
local first_dropper = nil
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-- remove all nodes
for id, n in ipairs(nodes) do
n.meta = minetest.get_meta(n.pos):to_table()
local is_dropper = mesecon:is_mvps_dropper(n.node, dir, nodes, id)
if is_dropper then
local drops = minetest.get_node_drops(n.node.name, "")
local droppos = vector.add(n.pos, dir)
minetest.handle_node_drops(droppos, drops, nil)
end
minetest.remove_node(n.pos)
if is_dropper then
first_dropper = id
break
end
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end
-- update mesecons for removed nodes ( has to be done after all nodes have been removed )
for id, n in ipairs(nodes) do
if first_dropper and id >= first_dropper then
break
end
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mesecon.on_dignode(n.pos, n.node)
mesecon:update_autoconnect(n.pos)
end
-- add nodes
for id, n in ipairs(nodes) do
if first_dropper and id >= first_dropper then
break
end
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np = mesecon:addPosRule(n.pos, dir)
minetest.add_node(np, n.node)
minetest.get_meta(np):from_table(n.meta)
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end
for i in ipairs(nodes) do
if first_dropper and i >= first_dropper then
break
end
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nodes[i].pos = mesecon:addPosRule(nodes[i].pos, dir)
end
return true, nodes
end
function mesecon:mvps_pull_single(pos, dir) -- pos: pos of mvps; direction: direction of pull (matches push direction for sticky pistons)
np = mesecon:addPosRule(pos, dir)
nn = minetest.get_node(np)
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if minetest.registered_nodes[nn.name].liquidtype == "none"
and not mesecon:is_mvps_stopper(nn, {x = -dir.x, y = -dir.y, z = -dir.z}, {{pos = np, node = nn}}, 1)
and not mesecon:is_mvps_dropper(nn, {x = -dir.x, y = -dir.y, z = -dir.z}, {{pos = np, node = nn}}, 1) then
local meta = minetest.get_meta(np):to_table()
minetest.remove_node(np)
minetest.add_node(pos, nn)
minetest.get_meta(pos):from_table(meta)
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core.check_for_falling(np)
core.check_for_falling(pos)
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mesecon.on_dignode(np, nn)
mesecon:update_autoconnect(np)
end
return {{pos = np, node = {param2 = 0, name = "air"}}, {pos = pos, node = nn}}
end
function mesecon:mvps_pull_all(pos, direction) -- pos: pos of mvps; direction: direction of pull
local lpos = {x=pos.x-direction.x, y=pos.y-direction.y, z=pos.z-direction.z} -- 1 away
local lnode = minetest.get_node(lpos)
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local lpos2 = {x=pos.x-direction.x*2, y=pos.y-direction.y*2, z=pos.z-direction.z*2} -- 2 away
local lnode2 = minetest.get_node(lpos2)
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if lnode.name ~= "ignore" and lnode.name ~= "air" and minetest.registered_nodes[lnode.name].liquidtype == "none" then return end
if lnode2.name == "ignore" or lnode2.name == "air" or not(minetest.registered_nodes[lnode2.name].liquidtype == "none") then return end
local oldpos = {x=lpos2.x+direction.x, y=lpos2.y+direction.y, z=lpos2.z+direction.z}
repeat
lnode2 = minetest.get_node(lpos2)
minetest.add_node(oldpos, {name=lnode2.name})
core.check_for_falling(oldpos)
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oldpos = {x=lpos2.x, y=lpos2.y, z=lpos2.z}
lpos2.x = lpos2.x-direction.x
lpos2.y = lpos2.y-direction.y
lpos2.z = lpos2.z-direction.z
lnode = minetest.get_node(lpos2)
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until lnode.name=="air" or lnode.name=="ignore" or not(minetest.registered_nodes[lnode2.name].liquidtype == "none")
minetest.remove_node(oldpos)
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end
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mesecon:register_mvps_stopper("mcl_core:sign")
mesecon:register_mvps_stopper("mcl_core:obsidian")
mesecon:register_mvps_stopper("mcl_core:bedrock")
mesecon:register_mvps_stopper("mcl_core:barrier")
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mesecon:register_mvps_stopper("mcl_core:void")
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mesecon:register_mvps_stopper("mcl_chests:chest")
mesecon:register_mvps_stopper("mcl_chests:chest_left")
mesecon:register_mvps_stopper("mcl_chests:chest_right")
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mesecon:register_mvps_stopper("mcl_chests:trapped_chest")
mesecon:register_mvps_stopper("mcl_chests:trapped_chest_left")
mesecon:register_mvps_stopper("mcl_chests:trapped_chest_right")
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mesecon:register_mvps_stopper("mcl_chests:ender_chest")
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mesecon:register_mvps_stopper("mcl_furnaces:furnace")
mesecon:register_mvps_stopper("mcl_furnaces:furnace_active")
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mesecon:register_mvps_stopper("mcl_hoppers:hopper")
mesecon:register_mvps_stopper("mcl_hoppers:hopper_side")
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mesecon:register_mvps_stopper("mcl_droppers:dropper")
mesecon:register_mvps_stopper("mcl_droppers:dropper_up")
mesecon:register_mvps_stopper("mcl_droppers:dropper_down")
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mesecon:register_mvps_stopper("mcl_anvils:anvil")
mesecon:register_mvps_stopper("mcl_anvils:anvil_damage_1")
mesecon:register_mvps_stopper("mcl_anvils:anvil_damage_2")
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mesecon:register_mvps_stopper("mcl_jukebox:jukebox")
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mesecon:register_mvps_stopper("mobs:spawner")
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mesecon:register_mvps_stopper("mesecons_commandblock:commandblock_off")
mesecon:register_mvps_stopper("mesecons_commandblock:commandblock_on")
mesecon:register_mvps_stopper("mesecons_solarpanel:solar_panel_off")
mesecon:register_mvps_stopper("mesecons_solarpanel:solar_panel_on")
mesecon:register_mvps_stopper("mesecons_solarpanel:solar_panel_inverted_off")
mesecon:register_mvps_stopper("mesecons_solarpanel:solar_panel_inverted_on")
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mesecon:register_mvps_stopper("mesecons_noteblock:noteblock")