creating quadrangles with 4 fingers

HackKRK · Mar 22, 2012 · 713a714 · 713a714
1 parent 2d3de20
commit 713a714
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Showing 3 changed files with 20 additions and 8 deletions.
diff --git a/MovingShapes/ShapeView.h b/MovingShapes/ShapeView.h
@@ -16,6 +16,7 @@
 - (void)shapeViewDidMoveVertex: (NSInteger) vertex toPoint: (HKPoint *) point;
 - (void)shapeViewDidTouchWithOnePoint:(HKPoint*) point;
 - (void)shapeViewDidTouchWithThreePoints:(NSArray *)points;
+- (void)shapeViewDidTouchWithFourPoints:(NSArray *)points;
 - (void)shapeViewDidMoveByX: (CGFloat) x y: (CGFloat) y;
 @end
 

diff --git a/MovingShapes/ShapeView.m b/MovingShapes/ShapeView.m
@@ -86,6 +86,9 @@ - (void) processTouchEvent:(UIEvent *)event {
     case 3: 
       [delegate shapeViewDidTouchWithThreePoints: points];
       break;
+    case 4: 
+      [delegate shapeViewDidTouchWithFourPoints: points];
+      break;
   }
 }
 

diff --git a/MovingShapes/ViewController.m b/MovingShapes/ViewController.m
@@ -44,17 +44,25 @@ - (void)shapeViewDidMoveByX: (CGFloat) x y: (CGFloat) y {
   [self.view setNeedsDisplay];
 }
 
+- (void)updateShapeWithPoints:(NSArray*) points {
+    if (shape) {
+        [shape updatePoints: points];
+    } else {
+        shape = [[Shape alloc] initWithPoints: points];
+        [(ShapeView *) self.view setShape: shape];
+    }
+
+    [self.view setNeedsDisplay];
+}
+
 - (void)shapeViewDidTouchWithThreePoints:(NSArray *)points {
     NSLog(@"3 points: %@", points);
+    [self updateShapeWithPoints:points];
+}
 
-  if (shape) {
-    [shape updatePoints: points];
-  } else {
-    shape = [[Shape alloc] initWithPoints: points];
-    [(ShapeView *) self.view setShape: shape];
-  }
-
-  [self.view setNeedsDisplay];
+- (void)shapeViewDidTouchWithFourPoints:(NSArray *)points {
+    NSLog(@"4 points: %@", points);
+    [self updateShapeWithPoints:points];
 }
 
 - (void)gyroscopicDidUpdateRotation:(float)rotation {