Added back tool resizing

js/tools/ResizableTool.js

@@ -1,5 +1,32 @@
 class ResizableTool extends Tool {
+    startResizePos = undefined;
+    currSize = 1;
+	prevSize = 1;
+    
     constructor(name, options, switchFunc) {
         super(name, options, switchFunc);
     }
+
+    onRightStart(mousePos, mouseEvent) {
+        this.startResizePos = mousePos;
+    }
+
+    onRightDrag(mousePos, mouseEvent) {
+        //get new brush size based on x distance from original clicking location
+        let distanceFromClick = mousePos[0]/zoom - this.startResizePos[0]/zoom;
+
+        let brushSizeChange = Math.round(distanceFromClick/10);
+        let newBrushSize = this.currSize + brushSizeChange;
+
+        //set the brush to the new size as long as its bigger than 1 and less than 128
+        this.currSize = Math.min(Math.max(1,newBrushSize), 128);
+
+        //fix offset so the cursor stays centered
+        this.updateCursor();
+        this.onHover(this.startResizePos, mouseEvent);
+    }
+
+    onRightEnd(mousePos, mouseEvent) {
+        
+    }
 }