I’m trying to write a simple 2D physics simulator. In it, I have 3 classes : One for box, one for circle, and one called manifold which serve for collision detection. Long story short, the manifold class need to have 2 variable of the thing that colide inside that can either be a box or circle. I f…

Object a = new manifold(); Object b = new box(); Object c = new circle(); Are all valid statements but what data type are they? In fact they are all of type Object so when you do something like a.checkCollision(b, c); It won’t work because checkCollision is a method inside the mmanifold class an…

The class Object

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quark April 12, 2020, 3:42pm 6

The solution is to either use inheritance or interfaces so that objects of type circle and box look the same to the manifold class but have different implementations for common methods.

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The class Object

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