support for polytonic greek

src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt

@@ -193,6 +193,7 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
     private fun isNagariBengali(c: Int) = c in codeRange[SHEET_NAGARI_BENGALI_VARW]
     private fun isKartvelianCaps(c: Int) = c in codeRange[SHEET_KARTULI_CAPS_VARW]
     private fun isDiacriticalMarks(c: Int) = c in codeRange[SHEET_DIACRITICAL_MARKS_VARW]
+    private fun isPolytonicGreek(c: Int) = c in codeRange[SHEET_GREEK_POLY_VARW]
 
     private fun isCaps(c: Int) = Character.isUpperCase(c) || isKartvelianCaps(c)
 
@@ -265,6 +266,9 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
     private fun diacriticalMarksIndexX(c: Int) = (c - 0x300) % 16
     private fun diacriticalMarksIndexY(c: Int) = (c - 0x300) / 16
 
+    private fun polytonicGreekIndexX(c: Int) = (c - 0x1F00) % 16
+    private fun polytonicGreekIndexY(c: Int) = (c - 0x1F00) / 16
+
     private val lowHeightLetters = "acegijmnopqrsuvwxyzɱɳʙɾɽʒʂʐʋɹɻɥɟɡɢʛȵɲŋɴʀɕʑçʝxɣχʁʜʍɰʟɨʉɯuʊøɘɵɤəɛœɜɞʌɔæɐɶɑɒɚɝɩɪʅʈʏʞ".toSortedSet()
     /**
      * lowercase AND the height is equal to x-height (e.g. lowercase B, D, F, H, K, L, ... does not count
@@ -312,7 +316,8 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
             SHEET_INSUAR_VARW,
             SHEET_NAGARI_BENGALI_VARW,
             SHEET_KARTULI_CAPS_VARW,
-            SHEET_DIACRITICAL_MARKS_VARW
+            SHEET_DIACRITICAL_MARKS_VARW,
+            SHEET_GREEK_POLY_VARW
     )
     private val autoShiftDownOnLowercase = arrayOf(
             SHEET_DIACRITICAL_MARKS_VARW
@@ -344,7 +349,8 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
             "insular_variable.tga",
             "devanagari_bengali_variable.tga",
             "kartuli_allcaps_variable.tga",
-            "diacritical_marks_variable.tga"
+            "diacritical_marks_variable.tga",
+            "greek_polytonic_xyswap_variable.tga"
     )
     private val codeRange = arrayOf( // MUST BE MATCHING WITH SHEET INDICES!!
             0..0xFF,
@@ -371,7 +377,8 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
             0xA770..0xA787, // if it work, don't fix it (yet--wait until Latin Extended C)
             0x900..0x9FF,
             0x1C90..0x1CBF,
-            0x300..0x36F
+            0x300..0x36F,
+            0x1F00..0x1FFF
     )
     private val glyphProps: HashMap<Int, GlyphProps> = HashMap()
     private val sheets: Array<TextureRegionPack>
@@ -399,10 +406,20 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
 
 
             if (isVariable) {
-                println("[TerrarumSansBitmap] loading texture $it [VARIABLE]")
+                if (isXYSwapped) {
+                    println("[TerrarumSansBitmap] loading texture $it [VARIABLE, XYSWAP]")
+                }
+                else {
+                    println("[TerrarumSansBitmap] loading texture $it [VARIABLE]")
+                }
             }
             else {
-                println("[TerrarumSansBitmap] loading texture $it")
+                if (isXYSwapped) {
+                    println("[TerrarumSansBitmap] loading texture $it [XYSWAP]")
+                }
+                else {
+                    println("[TerrarumSansBitmap] loading texture $it")
+                }
             }
 
 
@@ -803,6 +820,8 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
             return SHEET_KARTULI_CAPS_VARW
         else if (isDiacriticalMarks(c))
             return SHEET_DIACRITICAL_MARKS_VARW
+        else if (isPolytonicGreek(c))
+            return SHEET_GREEK_POLY_VARW
         else
             return SHEET_UNKNOWN
         // fixed width
@@ -900,6 +919,10 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
                 sheetX = diacriticalMarksIndexX(ch)
                 sheetY = diacriticalMarksIndexY(ch)
             }
+            SHEET_GREEK_POLY_VARW -> {
+                sheetX = polytonicGreekIndexX(ch)
+                sheetY = polytonicGreekIndexY(ch)
+            }
             else -> {
                 sheetX = ch % 16
                 sheetY = ch / 16
@@ -1308,6 +1331,7 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
         internal val SHEET_NAGARI_BENGALI_VARW=22
         internal val SHEET_KARTULI_CAPS_VARW = 23
         internal val SHEET_DIACRITICAL_MARKS_VARW = 24
+        internal val SHEET_GREEK_POLY_VARW   = 25
 
         internal val SHEET_UNKNOWN = 254
 

src/net/torvald/terrarumsansbitmap/gdx/TextureRegionPack.kt

@@ -77,11 +77,11 @@ class TextureRegionPack(
         else {
             regions = Array<TextureRegion>(horizontalCount * verticalCount, {
                 val region = TextureRegion()
-                val rx = (it % verticalCount * (tileW + hGap)) + hFrame
-                val ry = (it / verticalCount * (tileH + vGap)) + vFrame
+                val rx = (it / verticalCount * (tileW + hGap)) + hFrame
+                val ry = (it % verticalCount * (tileH + vGap)) + vFrame
 
                 region.setRegion(texture)
-                region.setRegion(ry, rx, tileW, tileH)
+                region.setRegion(rx, ry, tileW, tileH)
 
                 region.flip(false, globalFlipY)