151 lines
4.5 KiB
Lua
151 lines
4.5 KiB
Lua
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--[[
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Component 2x3:
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z+
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/|\
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\ 22 | 11 /
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\ 22 | 11 /
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\ 22 | 11 /
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333 \ | / 000
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333 \|/ 000
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−−−−−−−+−−−−−−−> x+
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444 /|\ 777
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444 / | \ 777
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/ 55 | 66 \
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/ 55 | 66 \
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/ 55 | 66 \
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--]]
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local function vecTo8dir(vec)
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local x = vec[1]
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local z = vec[3]
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return
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x>=0 and z>=0 and z<=x and 0 or
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x>=0 and z>=0 and z>x and 1 or
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x<0 and z>=0 and -z<=x and 2 or
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x<0 and z>=0 and -z>x and 3 or
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x<0 and z<0 and z>=x and 4 or
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x<0 and z<0 and z<x and 5 or
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x>=0 and z<0 and -z>=x and 6 or
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x>=0 and z<0 and -z<x and 7 or
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0 -- Should not happen
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end
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local function addToPos8dir(dir,pos,w,h)
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local x = pos[1]
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local y = pos[2]
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local z = pos[3]
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return
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dir == 0 and {x = x+h, y = y, z = z+w} or
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dir == 1 and {x = x+w, y = y, z = z+h} or
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dir == 2 and {x = x-w, y = y, z = z+h} or
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dir == 3 and {x = x-h, y = y, z = z+w} or
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dir == 4 and {x = x-h, y = y, z = z-w} or
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dir == 5 and {x = x-w, y = y, z = z-h} or
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dir == 6 and {x = x+w, y = y, z = z-h} or
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dir == 7 and {x = x+h, y = y, z = z-w} or
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pos -- Should not happen
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end
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-- Removes a node without calling on on_destruct()
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-- We use this to mess with bed nodes without causing unwanted recursion.
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local function remove_no_destruct(pos)
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minetest.swap_node(pos, {name = "air"})
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minetest.remove_node(pos) -- Now clear the meta
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minetest.check_for_falling(pos)
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end
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-- Everything is described as if dir=0
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-- {name,width,height,{cables_left,cables_right,cables_top,cables_bottom}}
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components = {
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"and" = {2,3,{{"in_1","in_2"},{"out"},{},{}}},
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"switch" = {2,1,{{"in"},{"out"},{"activate"},{}}},
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"demux" = {2,8,{{"in_1","in_2","in_3"},{"out_1","out_2","out_3","out_4","out_5","out_6","out_7","out_8"},{},{}}},
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}
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-- componentsblocks["block"] = {name,x,y}
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componentsblocks = {}
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minetest.register_node("logikraft:component_head", {
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drawtype = "block",
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tiles = {"component.png"},
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groups = {circuitry = 1,dig_immediate = 3},
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on_place = function(itemstack, placer, pointed_thing)
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local w = 3
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local h = 5
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local under = pointed_thing.under
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local node = minetest.get_node(under)
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local udef = minetest.registered_nodes[node.name]
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-- Rightclick is prioritary
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if udef and udef.on_rightclick and
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not (placer and placer:is_player() and
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placer:get_player_control().sneak) then
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return udef.on_rightclick(under, node, placer, itemstack,
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pointed_thing) or itemstack
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end
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-- Pos will be the head location
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local pos
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if udef and udef.buildable_to then
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pos = under
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else
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pos = pointed_thing.above
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end
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local player_name = placer and placer:get_player_name() or ""
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local dir = placer and placer:get_look_dir() and
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vecTo8dir(placer:get_look_dir()) or 0
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for i = 0,w*h-1 do
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local loc = addToPos8dir(dir,pos,i%w,(i-i%w)/w)
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local node_def = minetest.registered_nodes[minetest.get_node(loc).name]
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if not node_def or not node_def.buildable_to then
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-- Then we cannot build here
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return itemstack
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end
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end
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-- If we reached this point, we can build the component
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minetest.set_node(pos, {name = "logikraft:component_head", param2 = dir})
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for i = 1,w*h-1 do
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local loc = addToPos8dir(dir,pos,i%w,(i-i%w)/w)
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minetest.set_node(loc, {name = "logikraft:component_tail", param2 = dir})
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end
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if not minetest.is_creative_enabled(player_name) then
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itemstack:take_item()
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end
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return itemstack
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end,
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on_destruct = function(pos)
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local w = 3
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local h = 5
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local node = minetest.get_node(pos)
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dir = node.param2
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remove_no_destruct(pos) -- Should be logikraft:component_head
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for i = 1,w*h-1 do
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local loc = addToPos8dir(dir,pos,i%w,(i-i%w)/w)
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local onode = minetest.get_node(loc)
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if onode.name == "logikraft:component_tail" and onode.param2 == dir
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then
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remove_no_destruct(loc)
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end
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end
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end
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})
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minetest.register_node("logikraft:component_tail", {
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drawtype = "block",
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paramtype2 = "4dir",
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groups = {circuitry = 1},
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-- Which direction is the one of the head block
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tiles = {"component.png^[colorizehsl:120"}
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}) |