Started generalizing component

blocks/component.lua

@@ -1,8 +1,20 @@
 
-
 --[[
-0 : x+,z+
-1 : TODO finish the comment
+Component 2x3:
+
+       z+
+      /|\
+\   22 | 11   /
+ \  22 | 11  /
+  \ 22 | 11 /
+333 \  |  /  000
+333   \|/    000
+−−−−−−−+−−−−−−−> x+
+444   /|\    777
+444 /  |  \  777
+  / 55 | 66 \
+ /  55 | 66  \
+/   55 | 66   \
 --]]
 local function vecTo8dir(vec)
     local x = vec[1]
@@ -42,6 +54,19 @@ local function remove_no_destruct(pos)
 	minetest.check_for_falling(pos)
 end
 
+-- Everything is described as if dir=0
+-- {name,width,height,{cables_left,cables_right,cables_top,cables_bottom}}
+components = {
+    "and" = {2,3,{{"in_1","in_2"},{"out"},{},{}}},
+    "switch" = {2,1,{{"in"},{"out"},{"activate"},{}}},
+    "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"},{},{}}},
+}
+
+-- componentsblocks["block"] = {name,x,y}
+componentsblocks = {}
+
+
+
 minetest.register_node("logikraft:component_head", {
     drawtype = "block",
     tiles = {"component.png"},