debugger's got its colour codes back

src/net/torvald/terrarum/imagefont/TinyAlphNum.kt

@@ -1,5 +1,6 @@
 package net.torvald.terrarum.imagefont
 
+import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.g2d.Batch
 import com.badlogic.gdx.graphics.g2d.BitmapFont
 import com.badlogic.gdx.graphics.g2d.GlyphLayout
@@ -25,15 +26,67 @@ object TinyAlphNum : BitmapFont() {
         return W * str.length
     }
 
+    lateinit var colourHolder: Color
+
     override fun draw(batch: Batch, text: CharSequence, x: Float, y: Float): GlyphLayout? {
+        val originalColour = batch.color
+        colourHolder = batch.color
+
+        var charsPrinted = 0
         text.forEachIndexed { index, c ->
-            batch.draw(fontSheet.get(index % 16, index / 16), x + index * W, y)
+            if (isColourCodeHigh(c)) {
+                val cchigh = c
+                val cclow = text[index + 1]
+                val colour = getColour(cchigh, cclow)
+
+                colourHolder = colour
+            }
+            else if (c in 0.toChar()..255.toChar()) {
+                batch.color = colourHolder.cpy().mul(0.5f, 0.5f, 0.5f, 1f)
+                batch.draw(fontSheet.get(c.toInt() % 16, c.toInt() / 16), x + charsPrinted * W + 1, y)
+                batch.draw(fontSheet.get(c.toInt() % 16, c.toInt() / 16), x + charsPrinted * W    , y + 1)
+                batch.draw(fontSheet.get(c.toInt() % 16, c.toInt() / 16), x + charsPrinted * W + 1, y + 1)
+
+
+                batch.color = colourHolder.cpy()
+                batch.draw(fontSheet.get(c.toInt() % 16, c.toInt() / 16), x + charsPrinted * W, y)
+
+                charsPrinted += 1
+            }
         }
 
+
+        batch.color = originalColour
+
         return null
     }
 
     override fun getLineHeight() = H.toFloat()
     override fun getCapHeight() = getLineHeight()
     override fun getXHeight() = getLineHeight()
+
+
+
+    private fun isColourCodeHigh(c: Char) = c.toInt() in 0b110110_1111000000..0b110110_1111111111
+    private fun isColourCodeLow(c: Char) = c.toInt() in 0b110111_0000000000..0b110111_1111111111
+
+    private fun getColour(charHigh: Char, charLow: Char): Color { // input: 0x10ARGB, out: RGBA8888
+        val codePoint = Character.toCodePoint(charHigh, charLow)
+
+        if (colourBuffer.containsKey(codePoint))
+            return colourBuffer[codePoint]!!
+
+        val r = codePoint.and(0xF000).ushr(12)
+        val g = codePoint.and(0x0F00).ushr(8)
+        val b = codePoint.and(0x00F0).ushr(4)
+        val a = codePoint.and(0x000F)
+
+        val col = Color(r.shl(28) or r.shl(24) or g.shl(20) or g.shl(16) or b.shl(12) or b.shl(8) or a.shl(4) or a)
+
+
+        colourBuffer[codePoint] = col
+        return col
+    }
+
+    private val colourBuffer = HashMap<Int, Color>()
 }