Added support for keeping a limited set of tile textures.

dist/iwmlib.js

@@ -2336,6 +2336,8 @@
         onMouseWheel(event) {
             if (this.capture(event) && this.target.onMouseWheel) {
                 this.target.onMouseWheel(event);
+            } else {
+                //console.warn('Target has no onMouseWheel callback')
             }
         }
 
@@ -2529,6 +2531,8 @@
                 }
                 if (this.target.onMouseWheel) {
                     this.target.onMouseWheel(event);
+                } else {
+                    //console.warn('Target has no onMouseWheel callback', this.target)
                 }
             }
         }
@@ -4202,7 +4206,10 @@
                 let event = new ResizeEvent(this, { width: w, height: h });
                 this.onResize(event);
             }
-            if (this.resizeButton != null) ;
+            if (this.resizeButton != null) {
+                // this.resizeButton.style.width = 50/this.scale+"px"
+                // this.resizeButton.style.height = 50/this.scale+"px"
+            }
         }
 
         startResize(e) {