C / C++ / MFC

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class BVolume {<br />
protected:<br />
enum { NONE = 0, SPHERE, BOX, PLANE };<br />
public:<br />
static const unsigned short type = NONE;<br />
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virtual bool TestCollision(BVolume * volume)=0;<br />
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};<br />
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class BBox : public BVolume {<br />
public:<br />
static const unsigned short type = BOX;<br />
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bool TestCollision(BVolume * volume) { return Collision< volume -> type >(volume); }<br />
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template< unsigned short type > bool Collision(BVolume * volume) { return false; }<br />
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template< > bool Collision< BOX >(BVolume * box) { return BoxCollision(static_cast< BBox * >(box)); }<br />
template< > bool Collision< SPHERE >(BVolume * sphere) { return SphereCollision(static_cast< BSphere * >(sphere)); }<br />
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bool BoxCollision(BBox * box) { return true; } //For Testing That Code<br />
bool SphereCollision(BSphere * box) { return true; } //For Testing That Code (BSphere is for testing too)<br />
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};<br />
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BBox b1, b2;<br />
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bool Collided() {<br />
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return b1.TestCollision(&b2);<br />
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}<br />
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if(Collided()) std::cout << "Collided";<br />
else std::cout << "Not Collided";<br />
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