use luxe str function and small progress

Luxe/game.wren

@@ -52,18 +52,16 @@ class Game is Ready {
     ui_mouse = Camera.screen_point_to_world(app.ui_camera, ui_mouse.x, ui_mouse.y)
     Globals["UiMouse"] = ui_mouse
 
-    if(Input.key_state_released(Key.escape)) {
-      IO.shutdown()
-    }
-
-    if(Input.key_state_pressed(Key.key_q)) {
-      _tooltip.cycle_size()
-    }
     
     DrawDebug.commit()
     _tooltip.tick()
+    _adventures.tick()
 
     app.tick(delta)
+
+    if(Input.key_state_released(Key.escape)) {
+      IO.shutdown()
+    }
   } //tick
 
   destroy() {

Luxe/math/stringUtil.wren

@@ -1,5 +1,4 @@
-//a lot of this is bad and can only handle ASCII
-//too bad ¯\_(ツ)_/¯
+import "luxe: string" for Str
 
 class StringUtil{
   static directions{
@@ -59,28 +58,20 @@ class StringUtil{
 
   //checks if a character (as codepoint is lowercase)
   static is_lower(char){
-    return char >= 97 && char <= 122
+    return Str.compare(Str.upper(char), char) != 0
   }
 
   //checks if a character (as codepoint is uppercase)
   static is_upper(char){
-    return char >= 65 && char <= 90
+    return Str.compare(Str.lower(char), char) != 0
   }
 
   static is_letter(char){
     return is_lower(char) || is_upper(char)
   }
 
-  static to_upper(string){
-    return string.codePoints.map{|c|is_lower(c)?c-32:c}.map{|c|String.fromCodePoint(c)}.join()
-  }
-
-  static to_lower(string){
-    return string.codePoints.map{|c|is_upper(c)?c+32:c}.map{|c|String.fromCodePoint(c)}.join()
-  }
-
   static capitalize(string){
-    return to_upper(string[0]) + string[1..-1]
+    return Str.upper(string[0]) + string[1..-1]
   }
 
   //todo: this ignores words that arent preceeded by a space like (this) or "this". maybe fix that?
@@ -107,10 +98,11 @@ class WordSequence is Sequence{
     if(!iterator) iterator = [-1, -1, false] //fake value from -1 to -1
     if(iterator[1] >= _string.count-1) return false //abort when at end
     var start = iterator[1]+1
-    var is_word = StringUtil.is_letter(_string.codePointAt_(start))
+    System.print(_string.codePointAt_(start))
+    var is_word = StringUtil.is_letter(_string[start])
     var end = start + 1
     //count up until you find something thats not a word/separator depending on what the first letter was
-    while(end < _string.count && StringUtil.is_letter(_string.codePointAt_(end)) == is_word){
+    while(end < _string.count && StringUtil.is_letter(_string[end]) == is_word){
       end = end + 1
     }
     end = end - 1