Yet another segfault (a.k.a. Darkhog is a total noob)

[phibermon]

You've got two 'isColliding' member functions as part of TGameObject but you've not overloaded them. This should give you an error in objfpc mode as far as I'm aware.

You're range checking 'CurrentAnim' but you're not range checking 'GO.CurrentAnim' which you also use. Not saying that's the issue but you should be meticulous about such things.

I'm getting the build environment setup so I can compile and debug this for you, will have you an answer asap

EDIT : You're also calling 'inherited create' from your TAnimatedSprite constructor but the parent class doesn't have it's constructor marked as virtual.

User137 is correct, you don't have 'Create' defined in the TAnimatedSprite interface but you do have it in the implementation section. As a result you're not calling that 'Create' in your Gameobject creation, instead it'll be calling whatever 'Create()' it next finds, probably TObject.

I don't mean this is an offensive manner, but I've learned some things today, I'd of said this would never compile! but there lies the executable

Edit : BAADF00D isn't just an amusing coincidence you know, look it up

Edit : You had your compiler optimization on the highest setting, this will prevent you from debugging properly.