Actor reference ID on debug window, RefID is now Int, added Japanese on help page

Former-commit-id: 3519b8746d611c4badd65f01644ba05e41d10d04
Former-commit-id: 45bb407c2d932e5d70aab9c9eb4f3ef55ce68d27

src/net/torvald/imagefont/GameFontBase.kt

@@ -156,9 +156,7 @@ constructor() : Font {
 
     override fun getLineHeight() = H
 
-    override fun drawString(x: Float, y: Float, s: String) {
-        drawString(x, y, s, Color.white)
-    }
+    override fun drawString(x: Float, y: Float, s: String) = drawString(x, y, s, Color.white)
 
     override fun drawString(x: Float, y: Float, s: String, color: Color) {
         GL11.glEnable(GL11.GL_BLEND)
@@ -364,10 +362,13 @@ constructor() : Font {
                     )*/
                     sheetKey[prevInstance].getSubImage(sheetX, sheetY).draw(
                             Math.round(x + getWidthSubstr(s, i + 1) - glyphW).toFloat() // Interchar: pull punct right next to hangul to the left
-                            + if (i > 0 && isHangul(s[i - 1])) -3f else 0f,
+                            + if (i > 0 && isHangul(s[i - 1])) -3f
+                            else 0f,
+
                             Math.round(y).toFloat() + (if (prevInstance == SHEET_CJK_PUNCT) -1
                             else if (prevInstance == SHEET_FW_UNI) (H - H_HANGUL) / 2
                             else 0).toFloat(),
+
                             color
                     )
                 }

src/net/torvald/imagefont/SmallNumbers.kt

@@ -0,0 +1,50 @@
+package net.torvald.imagefont
+
+import org.newdawn.slick.Color
+import org.newdawn.slick.Font
+import org.newdawn.slick.SpriteSheet
+
+/**
+ * Created by minjaesong on 16-04-15.
+ */
+class SmallNumbers : Font {
+
+    internal val fontSheet: SpriteSheet
+
+    internal val W = 8
+    internal val H = 8
+
+    private val chars = arrayOf('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-')
+
+    init {
+        fontSheet = SpriteSheet("./res/graphics/fonts/numeric_small.png", W, H)
+    }
+
+    override fun getHeight(str: String): Int = H
+
+    override fun getWidth(str: String): Int = str.length * W
+
+    override fun getLineHeight(): Int = H
+
+    override fun drawString(x: Float, y: Float, text: String) = drawString(x, y, text, Color.white)
+
+    override fun drawString(x: Float, y: Float, text: String, col: Color) {
+        for (i in 0..text.length - 1) {
+            val index = charToSpriteNum(text.codePointAt(i))
+            if (index != null) {
+                fontSheet.getSubImage(index, 0).draw(
+                        x + i * W, y, col
+                )
+            }
+        }
+    }
+
+    override fun drawString(x: Float, y: Float, text: String, col: Color, startIndex: Int, endIndex: Int) {
+        throw UnsupportedOperationException()
+    }
+
+    private fun charToSpriteNum(ch: Int): Int? =
+            if (ch in '0'.toInt()..'9'.toInt()) ch - '0'.toInt()
+            else if (ch == '-'.toInt())         10
+            else null
+}