// Tom Plick
// 29 July 2005
// controls.cpp
// Read keypresses and change perspective based on them.

#include <windows.h>
#include "projector.h"

extern Projector TheProjector;


bool PollKeys(float timeDelta)
{
	bool change = false;

	if (GetAsyncKeyState(VK_UP) & 0x8000f ){
		TheProjector.addDistance(-8.0f * timeDelta);
		change = true;
	}

	if (GetAsyncKeyState(VK_DOWN) & 0x8000f ){
		TheProjector.addDistance( 8.0f * timeDelta);
		change = true;
	}

	if (GetAsyncKeyState(VK_LEFT) & 0x8000f ){
		TheProjector.addTheta(-1.0f * timeDelta);
		change = true;
	}
			
	if (GetAsyncKeyState(VK_RIGHT) & 0x8000f ){
		TheProjector.addTheta( 1.0f * timeDelta);
		change = true;
	}

	// Page up
	if (GetAsyncKeyState(VK_PRIOR) & 0x8000f ){
		TheProjector.addPhi(-1.0f * timeDelta);
		change = true;
	}

	// Page down
	if (GetAsyncKeyState(VK_NEXT) & 0x8000f ){
		TheProjector.addPhi( 1.0f * timeDelta);
		change = true;
	}

	if (GetAsyncKeyState(VK_RETURN) & 0x8000f){
		TheProjector.recenter();
		change = true;
	}

	return change;
}