Databases
StackOverflow2013
Postsdbo
POcocos2d for iPhone - Touch no longer works correctly after scale
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POcocos2d for iPhone - Touch no longer works correctly after scale
    primarykey
    data
    text
    <p>I am rather new to using Cocos2d for iPhone and I am having an issue with touch locations. At the moment I am simply trying to touch and move a sprite on the screen, this works fine when the layer is unmoved as well as when I translate the layer (changing self.position in X direction in my case) however, when I scale my layer (example: self.scale = .5) the touch no longer moves the sprite. I have done a lot of forum searching/google searching and I think my issue has to do with my coordinate transforms (node space/world space etc.) But I am not 100% sure. I did notice that when I scale, if I click the location where the sprite would be without the scale, then I could move the sprite. This leads me to believe that my transforms are not taking the scale into account.</p> <p>Here is the coordinate transform code I am currently using to get touch locations:</p> <pre><code>- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *myTouch = [touches anyObject]; CGPoint location = [myTouch locationInView:[myTouch view]]; location = [self convertToNodeSpace:location]; location = [[CCDirector sharedDirector] convertToGL:location]; } </code></pre> <p>Here is the code that is checking if the location (same location variable as above) is touching a sprite, although I feel much more confident that this code is correct, who knows!</p> <pre><code>for (CCSprite *sprite in movableSprites) { if (CGRectContainsPoint(sprite.boundingBox, touchLocation)) { NSLog(@"Woohoo, you touched a sprite!"); break; } } </code></pre> <p>Let me know if you need anymore information and thanks for reading!</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USSteven
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POcocos2d for iPhone - Touch no longer works correctly after scale
      1. USDaishi Nakajima
      1. VTFavorite
    2. VO
      singulars
      1. POcocos2d for iPhone - Touch no longer works correctly after scale
      1. This table or related slice is empty.
      1. VTUpMod
    1. COHmmmm I think you need to use convertToWorldSpace there as you want the location not transformed to the layer's space (which is scaled). Could be wrong though.
      singulars
      1. POcocos2d for iPhone - Touch no longer works correctly after scale
      1. USLearnCocos2D
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload