LibGDX, here I am.

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

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+package net.torvald.terrarum.imagefont
+
+import com.badlogic.gdx.graphics.g2d.Batch
+import com.badlogic.gdx.graphics.g2d.BitmapFont
+import com.badlogic.gdx.graphics.g2d.GlyphLayout
+import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
+
+/**
+ * Created by minjaesong on 16-04-15.
+ */
+object TinyAlphNum : BitmapFont() {
+
+    internal val W = 8
+    internal val H = 8
+
+    internal val fontSheet = TextureRegionPack("./assets/graphics/fonts/milky.tga", W, H)
+
+
+    init {
+        setOwnsTexture(true)
+        setUseIntegerPositions(true)
+    }
+
+    fun getWidth(str: String): Int {
+        return W * str.length
+    }
+
+    override fun draw(batch: Batch, text: CharSequence, x: Float, y: Float): GlyphLayout? {
+        text.forEachIndexed { index, c ->
+            batch.draw(fontSheet.get(index % 16, index / 16), x + index * W, y)
+        }
+
+        return null
+    }
+
+    override fun getLineHeight() = H.toFloat()
+    override fun getCapHeight() = getLineHeight()
+    override fun getXHeight() = getLineHeight()
+}