diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 8506e9c..f4653ae 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -29,8 +29,8 @@
           <file leaf-file-name="GameFontBase.kt" pinned="false" current-in-tab="true">
             <entry file="file://$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="293">
-                  <caret line="567" selection-start-line="567" selection-end-line="567" />
+                <state relative-caret-position="372">
+                  <caret line="372" lean-forward="true" selection-start-line="372" selection-end-line="372" />
                   <folding>
                     <element signature="e#1207#1689#0" expanded="true" />
                   </folding>
@@ -72,7 +72,7 @@
           <file leaf-file-name="FontTestGDX.kt" pinned="false" current-in-tab="false">
             <entry file="file://$PROJECT_DIR$/FontTestGDX/src/FontTestGDX.kt">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="-195">
+                <state relative-caret-position="338">
                   <caret line="33" column="38" selection-start-line="33" selection-start-column="38" selection-end-line="33" selection-end-column="38" />
                   <folding>
                     <element signature="e#0#384#0" expanded="true" />
@@ -84,8 +84,8 @@
           <file leaf-file-name="GameFontBase.kt" pinned="false" current-in-tab="true">
             <entry file="file://$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt">
               <provider selected="true" editor-type-id="text-editor">
-                <state relative-caret-position="537">
-                  <caret line="727" column="36" lean-forward="true" selection-start-line="727" selection-start-column="36" selection-end-line="727" selection-end-column="36" />
+                <state relative-caret-position="421">
+                  <caret line="90" column="332" selection-start-line="90" selection-start-column="332" selection-end-line="90" selection-end-column="332" />
                   <folding>
                     <element signature="e#1207#1689#0" expanded="true" />
                   </folding>
@@ -120,11 +120,6 @@
               </provider>
             </entry>
           </file>
-          <file leaf-file-name="demo.PNG" pinned="false" current-in-tab="false">
-            <entry file="file://$PROJECT_DIR$/demo.PNG">
-              <provider selected="true" editor-type-id="images" />
-            </entry>
-          </file>
           <file leaf-file-name="CONTRIBUTING.md" pinned="false" current-in-tab="false">
             <entry file="file://$PROJECT_DIR$/CONTRIBUTING.md">
               <provider selected="true" editor-type-id="split-provider[text-editor;MarkdownPreviewEditor]">
@@ -170,29 +165,22 @@
     <option name="RECENT_TEMPLATES">
       <list>
         <option value="Kotlin Class" />
+        <option value="Interface" />
+        <option value="Class" />
       </list>
     </option>
   </component>
   <component name="FindInProjectRecents">
     <findStrings>
-      <find>pro</find>
-      <find>system</find>
-      <find>posXbuffer</find>
-      <find>U+</find>
-      <find>variable</find>
-      <find>TextureRe</find>
-      <find>xyswap</find>
       <find>isXYSwapped</find>
       <find>xySw</find>
       <find>getWidth</find>
       <find>getWidthOfCharSeq</find>
       <find>makeShadow</find>
-      <find>fun draw</find>
       <find>glyphWidthBuffer</find>
       <find>oldCharSequence</find>
       <find>charSeq.toCodeP</find>
       <find>resetH</find>
-      <find>println</find>
       <find>HashMap</find>
       <find>drawPixmap</find>
       <find>RGBA</find>
@@ -205,12 +193,22 @@
       <find>buildWidthAndPos</find>
       <find>flagMake</find>
       <find>pixmapHolder?.dis</find>
+      <find>glyphProps[</find>
+      <find>textCache</find>
+      <find>glyphProps</find>
+      <find>(c: Int)</find>
+      <find>hashC</find>
+      <find>TreeNode</find>
+      <find>sear</find>
+      <find>fun draw</find>
+      <find>println</find>
     </findStrings>
     <replaceStrings>
       <replace>.141</replace>
       <replace>c</replace>
       <replace>har</replace>
       <replace>TEXH</replace>
+      <replace>(c: CodePoint)</replace>
     </replaceStrings>
   </component>
   <component name="Git.Settings">
@@ -236,6 +234,9 @@
         <option value="$PROJECT_DIR$/CONTRIBUTING.md" />
         <option value="$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/gdx/PixmapRegionPack.kt" />
         <option value="$PROJECT_DIR$/demotext.txt" />
+        <option value="$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/AgedItem.java" />
+        <option value="$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/RedBlackNode.java" />
+        <option value="$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/RedBlackTree.java" />
         <option value="$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt" />
       </list>
     </option>
@@ -251,8 +252,6 @@
       <foldersAlwaysOnTop value="true" />
     </navigator>
     <panes>
-      <pane id="PackagesPane" />
-      <pane id="Scope" />
       <pane id="ProjectPane">
         <subPane>
           <expand>
@@ -293,15 +292,17 @@
           <select />
         </subPane>
       </pane>
+      <pane id="PackagesPane" />
+      <pane id="Scope" />
     </panes>
   </component>
   <component name="PropertiesComponent">
-    <property name="SearchEverywhereHistoryKey" value="soft wr&#9;ACTION&#9;EditorToggleUseSoftWraps" />
+    <property name="SearchEverywhereHistoryKey" value="HashMap&#9;PSI&#9;JAVA://java.util.HashMap&#10;soft wr&#9;ACTION&#9;EditorToggleUseSoftWraps" />
     <property name="last_opened_file_path" value="$PROJECT_DIR$/lib/gdx.jar!/" />
     <property name="project.structure.last.edited" value="Artifacts" />
     <property name="project.structure.proportion" value="0.15" />
     <property name="project.structure.side.proportion" value="0.32068965" />
-    <property name="settings.editor.selected.configurable" value="configurable.group.editor" />
+    <property name="settings.editor.selected.configurable" value="preferences.language.Kotlin" />
   </component>
   <component name="RecentsManager">
     <key name="MoveFile.RECENT_KEYS">
@@ -361,6 +362,16 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
+    <configuration default="true" type="JetRunConfigurationType" factoryName="Kotlin">
+      <module name="BuildJAR_TerrarumSansBitmap" />
+      <option name="VM_PARAMETERS" />
+      <option name="PROGRAM_PARAMETERS" />
+      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
+      <option name="ALTERNATIVE_JRE_PATH" />
+      <option name="PASS_PARENT_ENVS" value="true" />
+      <option name="MAIN_CLASS_NAME" />
+      <option name="WORKING_DIRECTORY" />
+    </configuration>
     <configuration default="true" type="KotlinStandaloneScriptRunConfigurationType" factoryName="Kotlin script">
       <option name="filePath" />
       <option name="vmParameters" />
@@ -451,16 +462,6 @@
       <envs />
       <method />
     </configuration>
-    <configuration default="true" type="JetRunConfigurationType" factoryName="Kotlin">
-      <module name="BuildJAR_TerrarumSansBitmap" />
-      <option name="VM_PARAMETERS" />
-      <option name="PROGRAM_PARAMETERS" />
-      <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
-      <option name="ALTERNATIVE_JRE_PATH" />
-      <option name="PASS_PARENT_ENVS" value="true" />
-      <option name="MAIN_CLASS_NAME" />
-      <option name="WORKING_DIRECTORY" />
-    </configuration>
     <configuration default="true" type="Remote" factoryName="Remote">
       <option name="USE_SOCKET_TRANSPORT" value="true" />
       <option name="SERVER_MODE" value="false" />
@@ -521,26 +522,26 @@
     <layout>
       <window_info anchor="right" id="Palette" order="3" />
       <window_info anchor="bottom" id="TODO" order="6" />
-      <window_info anchor="bottom" id="Messages" order="9" weight="0.20779221" />
+      <window_info anchor="bottom" id="Messages" order="9" visible="true" weight="0.20779221" />
       <window_info anchor="right" id="Palette&#9;" order="5" />
       <window_info anchor="bottom" id="Event Log" order="10" side_tool="true" />
       <window_info anchor="right" id="Maven Projects" order="4" />
-      <window_info anchor="bottom" id="Version Control" order="8" />
       <window_info anchor="bottom" id="Run" order="2" weight="0.2591522" />
+      <window_info anchor="bottom" id="Version Control" order="8" />
       <window_info anchor="bottom" id="Terminal" order="7" />
       <window_info id="Designer" order="2" />
-      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.08742005" />
+      <window_info active="true" content_ui="combo" id="Project" order="0" visible="true" weight="0.09008529" />
+      <window_info anchor="bottom" id="Find" order="1" weight="0.32931355" />
       <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
       <window_info anchor="right" id="Ant Build" order="1" weight="0.25" />
       <window_info id="UI Designer" order="4" />
+      <window_info anchor="bottom" id="Debug" order="3" weight="0.24768089" />
       <window_info id="Favorites" order="3" side_tool="true" />
-      <window_info active="true" anchor="bottom" id="Debug" order="3" visible="true" weight="0.24768089" />
       <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
       <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
       <window_info anchor="right" id="Commander" order="0" weight="0.4" />
       <window_info anchor="bottom" id="Message" order="0" />
       <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
-      <window_info anchor="bottom" id="Find" order="1" weight="0.32931355" />
     </layout>
   </component>
   <component name="VcsContentAnnotationSettings">
@@ -556,35 +557,6 @@
     <option name="FILTER_TARGETS" value="false" />
   </component>
   <component name="editorHistoryManager">
-    <entry file="file://$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="18122">
-          <caret line="1394" column="67" selection-start-line="1394" selection-start-column="67" selection-end-line="1394" selection-end-column="67" />
-          <folding>
-            <element signature="e#1207#1689#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/README.md">
-      <provider selected="true" editor-type-id="split-provider[text-editor;MarkdownPreviewEditor]">
-        <state split_layout="SECOND">
-          <first_editor relative-caret-position="143">
-            <caret line="11" column="153" selection-start-line="11" selection-start-column="153" selection-end-line="11" selection-end-column="153" />
-          </first_editor>
-          <second_editor>
-            <js_state />
-          </second_editor>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/slick2d/GameFontBase.kt">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="8905">
-          <caret line="749" column="35" selection-start-line="749" selection-start-column="35" selection-end-line="749" selection-end-column="35" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="9594">
@@ -757,13 +729,7 @@
         </state>
       </provider>
     </entry>
-    <entry file="jar://$KOTLIN_BUNDLED$/lib/kotlin-runtime-sources.jar!/kotlin/CharSequence.kt">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="91">
-          <caret line="21" column="17" selection-start-line="21" selection-start-column="17" selection-end-line="21" selection-end-column="17" />
-        </state>
-      </provider>
-    </entry>
+    <entry file="jar://$KOTLIN_BUNDLED$/lib/kotlin-runtime-sources.jar!/kotlin/CharSequence.kt" />
     <entry file="jar://$PROJECT_DIR$/lib/gdx.jar!/com/badlogic/gdx/graphics/glutils/GLFrameBuffer.class">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="2379">
@@ -894,7 +860,7 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/FontTestGDX/src/FontTestGDX.kt">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-195">
+        <state relative-caret-position="338">
           <caret line="33" column="38" selection-start-line="33" selection-start-column="38" selection-end-line="33" selection-end-column="38" />
           <folding>
             <element signature="e#0#384#0" expanded="true" />
@@ -916,13 +882,49 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/demo.PNG">
-      <provider selected="true" editor-type-id="images" />
+    <entry file="jar://C:/Program Files/Java/jdk1.8.0_131/src.zip!/java/util/HashMap.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-5975">
+          <caret line="1798" column="23" selection-start-line="1798" selection-start-column="23" selection-end-line="1798" selection-end-column="23" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/AgedItem.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="325">
+          <caret line="25" column="1" selection-start-line="25" selection-start-column="1" selection-end-line="25" selection-end-column="1" />
+          <folding>
+            <element signature="e#309#310#0" expanded="true" />
+            <element signature="e#335#336#0" expanded="true" />
+            <element signature="e#462#463#0" expanded="true" />
+            <element signature="e#486#487#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/RedBlackNode.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="351">
+          <caret line="27" column="14" selection-start-line="27" selection-start-column="14" selection-end-line="27" selection-end-column="14" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/RedBlackTree.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-9212">
+          <caret line="69" column="67" selection-start-line="69" selection-start-column="67" selection-end-line="69" selection-end-column="67" />
+          <folding>
+            <element signature="imports" expanded="true" />
+            <element signature="e#22666#22667#0" expanded="true" />
+            <element signature="e#22707#22708#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="537">
-          <caret line="727" column="36" lean-forward="true" selection-start-line="727" selection-start-column="36" selection-end-line="727" selection-end-column="36" />
+        <state relative-caret-position="372">
+          <caret line="372" lean-forward="true" selection-start-line="372" selection-end-line="372" />
           <folding>
             <element signature="e#1207#1689#0" expanded="true" />
           </folding>
@@ -963,7 +965,7 @@
           <splitter-proportions>
             <option name="proportions">
               <list>
-                <option value="0.2" />
+                <option value="0.32068965" />
               </list>
             </option>
           </splitter-proportions>
@@ -975,7 +977,7 @@
           <splitter-proportions>
             <option name="proportions">
               <list>
-                <option value="0.2" />
+                <option value="0.32068965" />
               </list>
             </option>
           </splitter-proportions>
@@ -996,7 +998,7 @@
       </state>
       <state key="ProjectLibrariesConfigurable.UI">
         <settings>
-          <last-edited>TesterLib</last-edited>
+          <last-edited>GdxLib</last-edited>
           <splitter-proportions>
             <option name="proportions">
               <list>
diff --git a/FontTestGDX/lib/TerrarumSansBitmap.jar b/FontTestGDX/lib/TerrarumSansBitmap.jar
index 4e148c8..e8ede7f 100644
Binary files a/FontTestGDX/lib/TerrarumSansBitmap.jar and b/FontTestGDX/lib/TerrarumSansBitmap.jar differ
diff --git a/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt b/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt
index b12c50a..f1d7f03 100644
--- a/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt
+++ b/src/net/torvald/terrarumsansbitmap/gdx/GameFontBase.kt
@@ -33,12 +33,16 @@ import com.badlogic.gdx.utils.GdxRuntimeException
 import net.torvald.terrarumsansbitmap.GlyphProps
 import java.io.BufferedOutputStream
 import java.io.FileOutputStream
+import java.lang.NullPointerException
 import java.security.MessageDigest
 import java.util.zip.CRC32
 import java.util.zip.GZIPInputStream
 import kotlin.math.roundToInt
 
-typealias CodepointSequence = ArrayList<Int>
+typealias CodepointSequence = ArrayList<CodePoint>
+internal typealias CodePoint = Int
+internal typealias ARGB8888 = Int
+internal typealias Hash = Long
 
 /**
  * LibGDX port of Terrarum Sans Bitmap implementation
@@ -84,7 +88,7 @@ typealias CodepointSequence = ArrayList<Int>
  *
  * Created by minjaesong on 2017-06-15.
  */
-class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Boolean = false, val minFilter: Texture.TextureFilter = Texture.TextureFilter.Nearest, val magFilter: Texture.TextureFilter = Texture.TextureFilter.Nearest, var errorOnUnknownChar: Boolean = false) : BitmapFont() {
+class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Boolean = false, val minFilter: Texture.TextureFilter = Texture.TextureFilter.Nearest, val magFilter: Texture.TextureFilter = Texture.TextureFilter.Nearest, var errorOnUnknownChar: Boolean = false, val textCacheSize: Int = 128, val debug: Boolean = false) : BitmapFont() {
 
     // Hangul Implementation Specific //
 
@@ -122,19 +126,19 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
             9
     }
 
-    private fun isHangulChosung(c: Int) = c in (0x1100..0x115F) || c in (0xA960..0xA97F)
-    private fun isHangulJungseong(c: Int) = c in (0x1160..0x11A7) || c in (0xD7B0..0xD7C6)
-    private fun isHangulJongseong(c: Int) = c in (0x11A8..0x11FF) || c in (0xD7CB..0xD7FB)
+    private fun isHangulChosung(c: CodePoint) = c in (0x1100..0x115F) || c in (0xA960..0xA97F)
+    private fun isHangulJungseong(c: CodePoint) = c in (0x1160..0x11A7) || c in (0xD7B0..0xD7C6)
+    private fun isHangulJongseong(c: CodePoint) = c in (0x11A8..0x11FF) || c in (0xD7CB..0xD7FB)
 
-    private fun toHangulChosungIndex(c: Int) =
+    private fun toHangulChosungIndex(c: CodePoint) =
             if (!isHangulChosung(c)) throw IllegalArgumentException("This Hangul sequence does not begin with Chosung (${c.toHex()})")
             else if (c in 0x1100..0x115F) c - 0x1100
             else c - 0xA960 + 96
-    private fun toHangulJungseongIndex(c: Int) =
+    private fun toHangulJungseongIndex(c: CodePoint) =
             if (!isHangulJungseong(c)) 0
             else if (c in 0x1160..0x11A7) c - 0x1160
             else c - 0xD7B0 + 72
-    private fun toHangulJongseongIndex(c: Int) =
+    private fun toHangulJongseongIndex(c: CodePoint) =
             if (!isHangulJongseong(c)) 0
             else if (c in 0x11A8..0x11FF) c - 0x11A8 + 1
             else c - 0xD7CB + 88 + 1
@@ -146,7 +150,7 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
      * @param pCP Code point for Peak (Jungseong)
      * @param fCP Code point for Final (Jongseong
      */
-    private fun toHangulIndex(iCP: Int, pCP: Int, fCP: Int): IntArray {
+    private fun toHangulIndex(iCP: CodePoint, pCP: CodePoint, fCP: CodePoint): IntArray {
         val indexI = toHangulChosungIndex(iCP)
         val indexP = toHangulJungseongIndex(pCP)
         val indexF = toHangulJongseongIndex(fCP)
@@ -154,7 +158,7 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
         return intArrayOf(indexI, indexP, indexF)
     }
 
-    private fun toHangulIndexAndRow(iCP: Int, pCP: Int, fCP: Int): Pair<IntArray, IntArray> {
+    private fun toHangulIndexAndRow(iCP: CodePoint, pCP: CodePoint, fCP: CodePoint): Pair<IntArray, IntArray> {
         val (indexI, indexP, indexF) = toHangulIndex(iCP, pCP, fCP)
 
         val rowI = getHanInitialRow(indexI, indexP, indexF)
@@ -167,114 +171,114 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
 
     // END Hangul //
 
-    private fun isHangul(c: Int) = c in codeRange[SHEET_HANGUL]
-    private fun isAscii(c: Int) = c in codeRange[SHEET_ASCII_VARW]
-    private fun isRunic(c: Int) = c in codeRange[SHEET_RUNIC]
-    private fun isExtA(c: Int) = c in codeRange[SHEET_EXTA_VARW]
-    private fun isExtB(c: Int) = c in codeRange[SHEET_EXTB_VARW]
-    private fun isKana(c: Int) = c in codeRange[SHEET_KANA]
-    private fun isCJKPunct(c: Int) = c in codeRange[SHEET_CJK_PUNCT]
-    private fun isUniHan(c: Int) = c in codeRange[SHEET_UNIHAN]
-    private fun isCyrilic(c: Int) = c in codeRange[SHEET_CYRILIC_VARW]
-    private fun isFullwidthUni(c: Int) = c in codeRange[SHEET_FW_UNI]
-    private fun isUniPunct(c: Int) = c in codeRange[SHEET_UNI_PUNCT_VARW]
-    private fun isGreek(c: Int) = c in codeRange[SHEET_GREEK_VARW]
-    private fun isThai(c: Int) = c in codeRange[SHEET_THAI_VARW]
-    /*private fun isDiacritics(c: Int) = c in 0xE34..0xE3A
+    private fun isHangul(c: CodePoint) = c in codeRange[SHEET_HANGUL]
+    private fun isAscii(c: CodePoint) = c in codeRange[SHEET_ASCII_VARW]
+    private fun isRunic(c: CodePoint) = c in codeRange[SHEET_RUNIC]
+    private fun isExtA(c: CodePoint) = c in codeRange[SHEET_EXTA_VARW]
+    private fun isExtB(c: CodePoint) = c in codeRange[SHEET_EXTB_VARW]
+    private fun isKana(c: CodePoint) = c in codeRange[SHEET_KANA]
+    private fun isCJKPunct(c: CodePoint) = c in codeRange[SHEET_CJK_PUNCT]
+    private fun isUniHan(c: CodePoint) = c in codeRange[SHEET_UNIHAN]
+    private fun isCyrilic(c: CodePoint) = c in codeRange[SHEET_CYRILIC_VARW]
+    private fun isFullwidthUni(c: CodePoint) = c in codeRange[SHEET_FW_UNI]
+    private fun isUniPunct(c: CodePoint) = c in codeRange[SHEET_UNI_PUNCT_VARW]
+    private fun isGreek(c: CodePoint) = c in codeRange[SHEET_GREEK_VARW]
+    private fun isThai(c: CodePoint) = c in codeRange[SHEET_THAI_VARW]
+    /*private fun isDiacritics(c: CodePoint) = c in 0xE34..0xE3A
             || c in 0xE47..0xE4E
             || c == 0xE31*/
-    private fun isCustomSym(c: Int) = c in codeRange[SHEET_CUSTOM_SYM]
-    private fun isArmenian(c: Int) = c in codeRange[SHEET_HAYEREN_VARW]
-    private fun isKartvelian(c: Int) = c in codeRange[SHEET_KARTULI_VARW]
-    private fun isIPA(c: Int) = c in codeRange[SHEET_IPA_VARW]
-    private fun isLatinExtAdd(c: Int) = c in 0x1E00..0x1EFF
-    private fun isBulgarian(c: Int) = c in 0x400..0x45F
-    private fun isColourCode(c: Int) = c == 0x100000 || c in 0x10F000..0x10FFFF
-    private fun isCharsetOverride(c: Int) = c in 0xFFFC0..0xFFFFF
-    private fun isCherokee(c: Int) = c in codeRange[SHEET_TSALAGI_VARW]
-    private fun isInsular(c: Int) = c == 0x1D79 || c in 0xA779..0xA787
-    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 isExtC(c: Int) = c in codeRange[SHEET_EXTC_VARW]
+    private fun isCustomSym(c: CodePoint) = c in codeRange[SHEET_CUSTOM_SYM]
+    private fun isArmenian(c: CodePoint) = c in codeRange[SHEET_HAYEREN_VARW]
+    private fun isKartvelian(c: CodePoint) = c in codeRange[SHEET_KARTULI_VARW]
+    private fun isIPA(c: CodePoint) = c in codeRange[SHEET_IPA_VARW]
+    private fun isLatinExtAdd(c: CodePoint) = c in 0x1E00..0x1EFF
+    private fun isBulgarian(c: CodePoint) = c in 0x400..0x45F
+    private fun isColourCode(c: CodePoint) = c == 0x100000 || c in 0x10F000..0x10FFFF
+    private fun isCharsetOverride(c: CodePoint) = c in 0xFFFC0..0xFFFFF
+    private fun isCherokee(c: CodePoint) = c in codeRange[SHEET_TSALAGI_VARW]
+    private fun isInsular(c: CodePoint) = c == 0x1D79 || c in 0xA779..0xA787
+    private fun isNagariBengali(c: CodePoint) = c in codeRange[SHEET_NAGARI_BENGALI_VARW]
+    private fun isKartvelianCaps(c: CodePoint) = c in codeRange[SHEET_KARTULI_CAPS_VARW]
+    private fun isDiacriticalMarks(c: CodePoint) = c in codeRange[SHEET_DIACRITICAL_MARKS_VARW]
+    private fun isPolytonicGreek(c: CodePoint) = c in codeRange[SHEET_GREEK_POLY_VARW]
+    private fun isExtC(c: CodePoint) = c in codeRange[SHEET_EXTC_VARW]
 
-    private fun isCaps(c: Int) = Character.isUpperCase(c) || isKartvelianCaps(c)
+    private fun isCaps(c: CodePoint) = Character.isUpperCase(c) || isKartvelianCaps(c)
 
 
-    private fun extAindexX(c: Int) = (c - 0x100) % 16
-    private fun extAindexY(c: Int) = (c - 0x100) / 16
+    private fun extAindexX(c: CodePoint) = (c - 0x100) % 16
+    private fun extAindexY(c: CodePoint) = (c - 0x100) / 16
 
-    private fun extBindexX(c: Int) = (c - 0x180) % 16
-    private fun extBindexY(c: Int) = (c - 0x180) / 16
+    private fun extBindexX(c: CodePoint) = (c - 0x180) % 16
+    private fun extBindexY(c: CodePoint) = (c - 0x180) / 16
 
-    private fun runicIndexX(c: Int) = (c - 0x16A0) % 16
-    private fun runicIndexY(c: Int) = (c - 0x16A0) / 16
+    private fun runicIndexX(c: CodePoint) = (c - 0x16A0) % 16
+    private fun runicIndexY(c: CodePoint) = (c - 0x16A0) / 16
 
-    private fun kanaIndexX(c: Int) = (c - 0x3040) % 16
-    private fun kanaIndexY(c: Int) =
+    private fun kanaIndexX(c: CodePoint) = (c - 0x3040) % 16
+    private fun kanaIndexY(c: CodePoint) =
             if (c in 0x31F0..0x31FF) 12
             else if (c in 0x1B000..0x1B00F) 13
             else (c - 0x3040) / 16
 
-    private fun cjkPunctIndexX(c: Int) = (c - 0x3000) % 16
-    private fun cjkPunctIndexY(c: Int) = (c - 0x3000) / 16
+    private fun cjkPunctIndexX(c: CodePoint) = (c - 0x3000) % 16
+    private fun cjkPunctIndexY(c: CodePoint) = (c - 0x3000) / 16
 
-    private fun cyrilicIndexX(c: Int) = (c - 0x400) % 16
-    private fun cyrilicIndexY(c: Int) = (c - 0x400) / 16
+    private fun cyrilicIndexX(c: CodePoint) = (c - 0x400) % 16
+    private fun cyrilicIndexY(c: CodePoint) = (c - 0x400) / 16
 
-    private fun fullwidthUniIndexX(c: Int) = (c - 0xFF00) % 16
-    private fun fullwidthUniIndexY(c: Int) = (c - 0xFF00) / 16
+    private fun fullwidthUniIndexX(c: CodePoint) = (c - 0xFF00) % 16
+    private fun fullwidthUniIndexY(c: CodePoint) = (c - 0xFF00) / 16
 
-    private fun uniPunctIndexX(c: Int) = (c - 0x2000) % 16
-    private fun uniPunctIndexY(c: Int) = (c - 0x2000) / 16
+    private fun uniPunctIndexX(c: CodePoint) = (c - 0x2000) % 16
+    private fun uniPunctIndexY(c: CodePoint) = (c - 0x2000) / 16
 
-    private fun unihanIndexX(c: Int) = (c - 0x3400) % 256
-    private fun unihanIndexY(c: Int) = (c - 0x3400) / 256
+    private fun unihanIndexX(c: CodePoint) = (c - 0x3400) % 256
+    private fun unihanIndexY(c: CodePoint) = (c - 0x3400) / 256
 
-    private fun greekIndexX(c: Int) = (c - 0x370) % 16
-    private fun greekIndexY(c: Int) = (c - 0x370) / 16
+    private fun greekIndexX(c: CodePoint) = (c - 0x370) % 16
+    private fun greekIndexY(c: CodePoint) = (c - 0x370) / 16
 
-    private fun thaiIndexX(c: Int) = (c - 0xE00) % 16
-    private fun thaiIndexY(c: Int) = (c - 0xE00) / 16
+    private fun thaiIndexX(c: CodePoint) = (c - 0xE00) % 16
+    private fun thaiIndexY(c: CodePoint) = (c - 0xE00) / 16
 
-    private fun symbolIndexX(c: Int) = (c - 0xE000) % 16
-    private fun symbolIndexY(c: Int) = (c - 0xE000) / 16
+    private fun symbolIndexX(c: CodePoint) = (c - 0xE000) % 16
+    private fun symbolIndexY(c: CodePoint) = (c - 0xE000) / 16
 
-    private fun armenianIndexX(c: Int) = (c - 0x530) % 16
-    private fun armenianIndexY(c: Int) = (c - 0x530) / 16
+    private fun armenianIndexX(c: CodePoint) = (c - 0x530) % 16
+    private fun armenianIndexY(c: CodePoint) = (c - 0x530) / 16
 
-    private fun kartvelianIndexX(c: Int) = (c - 0x10D0) % 16
-    private fun kartvelianIndexY(c: Int) = (c - 0x10D0) / 16
+    private fun kartvelianIndexX(c: CodePoint) = (c - 0x10D0) % 16
+    private fun kartvelianIndexY(c: CodePoint) = (c - 0x10D0) / 16
 
-    private fun ipaIndexX(c: Int) = (c - 0x250) % 16
-    private fun ipaIndexY(c: Int) = (c - 0x250) / 16
+    private fun ipaIndexX(c: CodePoint) = (c - 0x250) % 16
+    private fun ipaIndexY(c: CodePoint) = (c - 0x250) / 16
 
-    private fun latinExtAddX(c: Int) = (c - 0x1E00) % 16
-    private fun latinExtAddY(c: Int) = (c - 0x1E00) / 16
+    private fun latinExtAddX(c: CodePoint) = (c - 0x1E00) % 16
+    private fun latinExtAddY(c: CodePoint) = (c - 0x1E00) / 16
 
-    private fun cherokeeIndexX(c: Int) = (c - 0x13A0) % 16
-    private fun cherokeeIndexY(c: Int) = (c - 0x13A0) / 16
+    private fun cherokeeIndexX(c: CodePoint) = (c - 0x13A0) % 16
+    private fun cherokeeIndexY(c: CodePoint) = (c - 0x13A0) / 16
 
-    private fun insularIndexX(c: Int) =
+    private fun insularIndexX(c: CodePoint) =
             if (c == 0x1D79) 0 else (c - 0xA770) % 16
-    private fun insularIndexY(c: Int) =
+    private fun insularIndexY(c: CodePoint) =
             if (c == 0x1D79) 0 else (c - 0xA770) / 16
 
-    private fun nagariIndexX(c: Int) = (c - 0x900) % 16
-    private fun nagariIndexY(c: Int) = (c - 0x900) / 16
+    private fun nagariIndexX(c: CodePoint) = (c - 0x900) % 16
+    private fun nagariIndexY(c: CodePoint) = (c - 0x900) / 16
 
-    private fun kartvelianCapsIndexX(c: Int) = (c - 0x1C90) % 16
-    private fun kartvelianCapsIndexY(c: Int) = (c - 0x1C90) / 16
+    private fun kartvelianCapsIndexX(c: CodePoint) = (c - 0x1C90) % 16
+    private fun kartvelianCapsIndexY(c: CodePoint) = (c - 0x1C90) / 16
 
-    private fun diacriticalMarksIndexX(c: Int) = (c - 0x300) % 16
-    private fun diacriticalMarksIndexY(c: Int) = (c - 0x300) / 16
+    private fun diacriticalMarksIndexX(c: CodePoint) = (c - 0x300) % 16
+    private fun diacriticalMarksIndexY(c: CodePoint) = (c - 0x300) / 16
 
-    private fun polytonicGreekIndexX(c: Int) = (c - 0x1F00) % 16
-    private fun polytonicGreekIndexY(c: Int) = (c - 0x1F00) / 16
+    private fun polytonicGreekIndexX(c: CodePoint) = (c - 0x1F00) % 16
+    private fun polytonicGreekIndexY(c: CodePoint) = (c - 0x1F00) / 16
 
-    private fun extCIndexX(c: Int) = (c - 0x2C60) % 16
-    private fun extCIndexY(c: Int) = (c - 0x2C60) / 16
+    private fun extCIndexX(c: CodePoint) = (c - 0x2C60) % 16
+    private fun extCIndexY(c: CodePoint) = (c - 0x2C60) / 16
 
     private val lowHeightLetters = "acegijmnopqrsuvwxyzɱɳʙɾɽʒʂʐʋɹɻɥɟɡɢʛȵɲŋɴʀɕʑçʝxɣχʁʜʍɰʟɨʉɯuʊøɘɵɤəɛœɜɞʌɔæɐɶɑɒɚɝɩɪʅʈʏʞⱥⱦⱱⱳⱴⱶⱷⱸⱺⱻ".toSortedSet()
     /**
@@ -285,8 +289,111 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
 
     // TODO (val posXbuffer: IntArray, val posYbuffer: IntArray) -> (val linotype: Pixmap)
     private data class ShittyGlyphLayout(val textBuffer: CodepointSequence, val linotype: Pixmap)
-    private val textCache = HashMap<CharSequence, ShittyGlyphLayout>()
 
+    //private val textCache = HashMap<CharSequence, ShittyGlyphLayout>()
+
+    private data class TextCacheObj(var age: Int, val hash: Long, val glyphLayout: ShittyGlyphLayout?)
+    private var textCacheCap = 0
+
+    private val textCache = Array(textCacheSize) { TextCacheObj(-1, -1L, null) }
+
+    /**
+     * Insertion sorts the last element fo the textCache
+     */
+    private fun addToCache(text: CodepointSequence, linotype: Pixmap) {
+        // make room first
+        if (textCacheCap == textCacheSize - 1) {
+            var c = 0
+            var mark = -1
+            while (c < textCacheSize - 1) {
+                if (textCache[c].age == 0 && mark == -1) // if unmarked and age == 0, mark it
+                    mark = c
+
+                if (mark >= 0) { // if marked then ...
+                    // shift left everyting by 1
+                    textCache[c] = textCache[c + 1]
+                }
+
+                c += 1
+            }
+        }
+
+        // count down all the elements' age by 1
+        textCache.forEach { it.age -= 1 }
+
+
+        // put new element at the end
+        textCache[textCacheCap] = TextCacheObj(textCacheCap, text.getHash(), ShittyGlyphLayout(text, linotype))
+
+
+
+        // insertion sort last elem (sorted by hash)
+        if (textCacheCap >= 1) { // when there's two or more elem...
+            var j = textCacheCap - 1
+            val x = textCache[textCacheCap]
+            while (j >= 0 && textCache[j].hash > x.hash) {
+                textCache[j + 1] = textCache[j]
+                j -= 1
+            }
+            textCache[j + 1] = x
+        }
+
+
+        if (textCacheCap < textCacheSize - 1) {
+            textCacheCap++
+        }
+    }
+
+    private fun getCache(hash: Long): TextCacheObj {
+        var low = 0
+        var high = textCacheCap
+        var key = -1
+
+
+        while (low <= high) {
+            val mid = (low + high).ushr(1) // safe from overflows
+
+            val midVal = textCache[mid]
+
+            if (hash > midVal.hash)
+                low = mid + 1
+            else if (hash < midVal.hash)
+                high = mid - 1
+            else {
+                key = mid
+                break // the condition is not enough to break the loop
+            }
+        }
+
+        if (key < 0)
+            throw NullPointerException("No element found")
+
+        return textCache[key]
+    }
+
+    private fun cacheContains(hash: Long): Boolean {
+        var low = 0
+        var high = textCacheCap
+        var key = -1
+
+
+        while (low <= high) {
+            val mid = (low + high).ushr(1) // safe from overflows
+
+            val midVal = textCache[mid]
+
+            if (hash > midVal.hash)
+                low = mid + 1
+            else if (hash < midVal.hash)
+                high = mid - 1
+            else {
+                key = mid
+                break // the condition is not enough to break the loop
+            }
+        }
+
+        return (key >= 0)
+    }
 
     private fun getColour(codePoint: Int): Int { // input: 0x10F_RGB, out: RGBA8888
         if (colourBuffer.containsKey(codePoint))
@@ -306,7 +413,7 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
         return col
     }
 
-    private val colourBuffer = HashMap<Int, Int>()
+    private val colourBuffer = HashMap<CodePoint, ARGB8888>()
 
     private val unihanWidthSheets = arrayOf(
             SHEET_UNIHAN,
@@ -397,7 +504,8 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
             0x1F00..0x1FFF,
             0x2C60..0x2C7F
     )
-    private val glyphProps: HashMap<Int, GlyphProps> = HashMap()
+    /** Props of all printable Unicode points. */
+    private val glyphProps: HashMap<CodePoint, GlyphProps> = HashMap()
     private val sheets: Array<PixmapRegionPack>
 
     private var charsetOverride = 0
@@ -567,6 +675,10 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
     private val pixmapOffsetY = 10
 
     override fun draw(batch: Batch, charSeq: CharSequence, x: Float, y: Float): GlyphLayout? {
+        if (debug)
+            println("[TerrarumSansBitmap] max age: $textCacheCap")
+
+
 
         fun Int.flipY() = this * if (flipY) 1 else -1
 
@@ -579,10 +691,11 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
         val mainColObj = originalColour
         var mainCol: Int = originalColour.toRGBA8888().forceOpaque()
 
+        val charSeqHash = charSeq.toCodePoints().getHash()
 
         if (charSeq.isNotBlank()) {
 
-            if (!textCache.containsKey(charSeq) || flagFirstRun) {
+            if (!cacheContains(charSeqHash) || flagFirstRun) {
                 textBuffer = charSeq.toCodePoints()
 
                 val (posXbuffer, posYbuffer) = buildWidthAndPosBuffers()
@@ -704,13 +817,14 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
 
 
                 // put things into cache
-                textCache[charSeq] = ShittyGlyphLayout(textBuffer, linotype!!)
+                //textCache[charSeq] = ShittyGlyphLayout(textBuffer, linotype!!)
+                addToCache(textBuffer, linotype!!)
             }
             else {
-                val bufferObj = textCache[charSeq]
+                val bufferObj = getCache(charSeqHash)
 
-                textBuffer = bufferObj!!.textBuffer
-                linotype = bufferObj!!.linotype
+                textBuffer = bufferObj.glyphLayout!!.textBuffer
+                linotype = bufferObj.glyphLayout!!.linotype
             }
 
 
@@ -788,7 +902,7 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
         return len
     }
 
-    private fun getSheetType(c: Int): Int {
+    private fun getSheetType(c: CodePoint): Int {
         if (charsetOverride == 1 && isBulgarian(c))
             return SHEET_BULGARIAN_VARW
         else if (charsetOverride == 2 && isBulgarian(c))
@@ -1492,6 +1606,7 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
     val charsetOverrideBulgarian = Character.toChars(CHARSET_OVERRIDE_BG_BG)
     val charsetOverrideSerbian = Character.toChars(CHARSET_OVERRIDE_SR_SR)
 
+    // randomiser effect hash ONLY
     private val hashBasis = -3750763034362895579L
     private val hashPrime = 1099511628211L
     private var hashAccumulator = hashBasis
@@ -1508,6 +1623,21 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
         getHash(y.toRawBits())
     }
 
+
+    fun CodepointSequence.getHash(): Long {
+        val hashBasis = -3750763034362895579L
+        val hashPrime = 1099511628211L
+        var hashAccumulator = hashBasis
+
+        this.forEach {
+            hashAccumulator = hashAccumulator xor it.toLong()
+            hashAccumulator *= hashPrime
+        }
+
+        return hashAccumulator
+    }
+
+
     private fun Int.toHex() = "U+${this.toString(16).padStart(4, '0').toUpperCase()}"
 
     private fun CharSequence.sha256(): ByteArray {
@@ -1614,4 +1744,4 @@ class GameFontBase(fontDir: String, val noShadow: Boolean = false, val flipY: Bo
         val noColorCode = toColorCode(0x0000)
     }
 
-}
\ No newline at end of file
+}