Following on from my last post "How do I - Move toward another sprite" , now the enemy sprite overlaps the target sprite all good. However the next behaviour is that while the enemy sprite is overlapping for a period of time, after a given time the target sprite needs to start changing its apperance.
I first tried using the is overlapping event and then place a wait seconds action and then stated to change the sprite for another. This did just that but then the enemy sprite disappeared and on running this through the debuger it look as though changing the sprite to another seemed to create more memory
Is there a better way of changing the apperance of a sprite either with another sprite or by changing its colour etc.