1 files changed, 22 insertions, 1 deletions

@@ -10,7 +10,7 @@
 
 @implementation Cart
 
-@synthesize sprite, immobile;
+@synthesize sprite, immobile, delegate, falling;
 
 - (id)initWithSprite:(CCSprite*)m_sprite
 {
@@ -20,6 +20,7 @@
     {
         sprite = m_sprite;
         immobile = NO;
+        falling = NO;
     }
     
     return self;
@@ -30,7 +31,27 @@
     if (!immobile)
     {
         // Move the cart based on acceleration gathered from accelerometer
+        CGPoint prevLoc = sprite.position;
         sprite.position = ccp(MIN(MAX(sprite.position.x+accelX, 16),464), sprite.position.y);
+        
+        if ((delegate != nil) && ([delegate respondsToSelector:@selector(cartIsObstructed:)]))
+        {
+            if ([delegate cartIsObstructed:self])
+            {
+                sprite.position = prevLoc;
+            }
+        }
+        
+        if (falling)
+        {
+            if ((delegate != nil) && ([delegate respondsToSelector:@selector(cartShouldFall:)]))
+            {
+                int bottom = [delegate cartShouldFall:self];
+                sprite.position = ccp(sprite.position.x, MAX(bottom, sprite.position.y-6));
+            } else {
+                NSLog(@"Falling is set on a cart without a compatible game mode.");
+            }
+        }
     }
 }