Flash >> Collision Detection Kit >> Color Exclusion Example

The Collision Detection Kit allows you to key out colors from display objects, ignoring them during collision detection.

In this example, a photo is imported as a bitmap and takes up the entire stage, and is set up to detect collisions with the balls falling from above. The color of the wall in the bitmap has been excluded from collision detection using the excludeColor() method, with a range specified to account for changes in light and shadow. As a result, the balls ignore the wall and only detect collisions against the paintings.

For more information on the excludeColor() method, please reference the documentation.

This example shows how you can exclude alpha values from collision detections. See how the Collision Detection Kit can exclude colors from collision checking. See how you can detect collisions on the fly. Draw on the stage to see how easy it is to work with organic shapes. The Collision Detection Kit plays well with TextField objects, as this example demonstrates. The kit even works with video. Watch how easy it is in this example. This demonstration shows off an important part of the Collision Detection Kit - returning the angle of collision. The kit accounts for local transforms like scale and rotation, as demonstrated in this example.