Reduced memory usage of BigLetter library

Applications/3D Print.app/Sample.3dm

@@ -1,27 +1,36 @@
 {
-	label = "Beer",
+	label = "Companion Cube",
-	tooltip = "Cold wheat beer... mmmmm",
 	shapes = {
-		{ 0, 0, 2, 7, 1, 5, texture = "minecraft:blocks/log_spruce" },
+		-- Center
-		{ 1, 0, 1, 6, 1, 6, texture = "minecraft:blocks/log_spruce" },
+		{2, 2,2, 14, 14, 14, texture = "wool_colored_gray"},
-		{ 2, 0, 0, 5, 1, 7, texture = "minecraft:blocks/log_spruce" },
+
-		{ 0, 1, 2, 1, 7, 5, texture = "minecraft:blocks/log_spruce" },
+		-- Corners
-		{ 1, 1, 1, 2, 7, 2, texture = "minecraft:blocks/log_spruce" },
+		{ 0, 0, 0, 5, 5, 5, texture = "wool_colored_silver"},
-		{ 1, 1, 5, 2, 7, 6, texture = "minecraft:blocks/log_spruce" },
+		{ 0, 0, 11, 5, 5, 16, texture = "wool_colored_silver"},
-		{ 2, 1, 0, 5, 7, 1, texture = "minecraft:blocks/log_spruce" },
+		{ 0, 11, 0, 5, 16, 5, texture = "wool_colored_silver"},
-		{ 2, 1, 6, 5, 7, 7, texture = "minecraft:blocks/log_spruce" },
+		{ 0, 11, 11, 5, 16, 16, texture = "wool_colored_silver"},
-		{ 5, 1, 1, 6, 7, 2, texture = "minecraft:blocks/log_spruce" },
+		{ 11, 0, 0, 16, 5, 5, texture = "wool_colored_silver"},
-		{ 5, 1, 5, 6, 7, 6, texture = "minecraft:blocks/log_spruce" },
+		{ 11, 0, 11, 16, 5, 16, texture = "wool_colored_silver"},
-		{ 6, 1, 2, 7, 7, 5, texture = "minecraft:blocks/log_spruce" },
+		{ 11, 11, 0, 16, 16, 5, texture = "wool_colored_silver"},
-		{ 7, 1, 3, 9, 2, 4, texture = "minecraft:blocks/stone" },
+		{ 11, 11, 11, 16, 16, 16, texture = "wool_colored_silver"},
-		{ 5, 2, 0, 6, 8, 1, texture = "minecraft:blocks/snow", tint = 16771749 },
+
-		{ 6, 2, 1, 7, 8, 2, texture = "minecraft:blocks/snow", tint = 16771749 },
+		-- Edges
-		{ 8, 2, 3, 9, 6, 4, texture = "minecraft:blocks/stone" },
+		{ 1, 6, 1, 3, 10, 3, texture = "wool_colored_silver"},
-		{ 7, 5, 3, 9, 6, 4, texture = "minecraft:blocks/stone" },
+		{ 1, 6, 13, 3, 10, 15, texture = "wool_colored_silver"},
-		{ 1, 6, 2, 6, 7, 5, texture = "minecraft:blocks/snow", tint = 16771749 },
+		{ 13, 6, 1, 15, 10, 3, texture = "wool_colored_silver"},
-		{ 2, 6, 1, 5, 8, 5, texture = "minecraft:blocks/snow", tint = 16771749 },
+		{ 13, 6, 13, 15, 10, 15, texture = "wool_colored_silver"},
-		{ 2, 6, 5, 5, 7, 6, texture = "minecraft:blocks/snow", tint = 16771749 },
+		{ 6, 1, 1, 10, 3, 3, texture = "wool_colored_silver"},
-		{ 3, 7, 0, 6, 8, 5, texture = "minecraft:blocks/snow", tint = 16771749 },
+		{ 6, 1, 13, 10, 3, 15, texture = "wool_colored_silver"},
-		{ 3, 8, 1, 6, 9, 4, texture = "minecraft:blocks/snow", tint = 16771749 }
+		{ 6, 13, 1, 10, 15, 3, texture = "wool_colored_silver"},
+		{ 6, 13, 13, 10, 15, 15, texture = "wool_colored_silver"},
+		{ 1, 1, 6, 3, 3, 10, texture = "wool_colored_silver"},
+		{ 13, 1, 6, 15, 3, 10, texture = "wool_colored_silver"},
+		{ 1, 13, 6, 3, 15, 10, texture = "wool_colored_silver"},
+		{ 13, 13, 6, 15, 15, 10, texture = "wool_colored_silver"},
+
+		-- Centers
+		{ 1, 6, 6, 15, 10, 10, texture = "wool_colored_magenta"},
+		{ 6, 6, 1, 10, 10, 15, texture = "wool_colored_magenta"},
+		{ 6, 1, 6, 10, 15, 10, texture = "wool_colored_magenta"}
 	}
 }

Libraries/BigLetters.lua

@@ -7,7 +7,8 @@ local lettersInterval = 2
 local unknownSymbol = "*"
 local spaceWidth = 2
 
-local letters = {
+local function getCharTable(c)
+	return ({
 		["0"] = {
 			{ 1, 1, 1 },
 			{ 1, 0, 1 },
@@ -544,52 +545,58 @@ local letters = {
 			{ 0, 0, 0, 0, 0 },
 			{ 1, 0, 1, 0, 1 },
 		},
-}
+	})[c]
+end
 
 function bigLetters.draw(x, y, color, symbol, drawWithSymbol)
+	local char
+
 	if symbol == " " then
 		return spaceWidth
-  elseif not letters[symbol] then
-    symbol = unknownSymbol
-  end
-
-  for j = 1, #letters[symbol] do
-    for i = 1, #letters[symbol][j] do
-      if letters[symbol][j][i] == 1 then
-        if not drawWithSymbol then
-          screen.drawRectangle(x + i * 2 - 2, y + (pixelHeight - #letters[symbol]) + j - 1, 2, 1, color, 0xFFFFFF, " ")
 	else
-          screen.drawText(x + i * 2 - 2, y + (pixelHeight - #letters[symbol]) + j - 1, color, "*")
+		char = getCharTable(symbol) or getCharTable(unknownSymbol)
+	end
+
+	for j = 1, #char do
+		for i = 1, #char[j] do
+			if char[j][i] == 1 then
+				if not drawWithSymbol then
+					screen.drawRectangle(x + i * 2 - 2, y + (pixelHeight - #char) + j - 1, 2, 1, color, 0xFFFFFF, " ")
+				else
+					screen.drawText(x + i * 2 - 2, y + (pixelHeight - #char) + j - 1, color, "*")
 				end
 			end
 		end
 	end
 
-  return #letters[symbol][1]
+	return #char[1]
 end
 
 function bigLetters.drawText(x, y, color, stroka, drawWithSymbol)
 	checkArg(4, stroka, "string")
+	
 	for i = 1, unicode.len(stroka) do
 		x = x + bigLetters.draw(x, y, color, unicode.sub(stroka, i, i), drawWithSymbol) * 2 + lettersInterval
 	end
+
 	return x
 end
 
 function bigLetters.getTextSize(text)
 	local width, height = 0, 0
-  local symbol, symbolWidth, symbolHeight
+	local symbol, symbolWidth, symbolHeight, char
+	
 	for i = 1, unicode.len(text) do
 		symbol = unicode.sub(text, i, i)
+
 		if symbol == " " then
 			symbolWidth = spaceWidth
 			symbolHeight = 5
-    elseif not letters[symbol] then 
-      symbolHeight = #letters[unknownSymbol]
-      symbolWidth = #letters[unknownSymbol][1]
 		else
-      symbolHeight = #letters[symbol]
+			char = getCharTable(symbol) or getCharTable(unknownSymbol)
-      symbolWidth = #letters[symbol][1]
+
+			symbolHeight = #char
+			symbolWidth = #char[1]
 		end
 
 		width = width + symbolWidth * 2 + lettersInterval
@@ -600,14 +607,3 @@ function bigLetters.getTextSize(text)
 end
 
 return bigLetters
-
-
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