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typedef struct vector{
	double x;
	double y;
	double z;
} velocity, position, displacement;

typedef struct physicsobject{
	position pos;
	velocity vel;
	displacement disp;
	bool isGrounded;
	double facing;
	double moveSpeed;
	double height;
	int id;
} propPhysics,propWeapon;

        propWeapon weapon_shotgun;
	propPhysics player;

weapon_shotgun.pos.x=100;
	weapon_shotgun.pos.z=100;
	weapon_shotgun.pos.y=dbGetTerrainGroundHeight(terrain,weapon_shotgun.pos.x,weapon_shotgun.pos.z)+35.75;
	weapon_shotgun.height=1;
	weapon_shotgun.id=shotgun;
	weapon_shotgun.isGrounded=false;

	player.pos.x=20;
	player.pos.z=20;
	player.height=10;
	player.pos.y=dbGetTerrainGroundHeight(terrain,player.pos.x,player.pos.z)+player.height;
	player.isGrounded=true;

        while(LoopGDK()){
		if(dbReturnKey()==1){
			weapon_shotgun.pos.x=100;
			weapon_shotgun.pos.z=100;
			weapon_shotgun.pos.y=dbGetTerrainGroundHeight(terrain,weapon_shotgun.pos.x,weapon_shotgun.pos.z)+35.75;
			weapon_shotgun.height=1;
			weapon_shotgun.id=shotgun;
			weapon_shotgun.isGrounded=false;

			player.pos.x=20;
			player.pos.z=20;
			player.height=10;
			player.pos.y=dbGetTerrainGroundHeight(terrain,player.pos.x,player.pos.z)+player.height;
			player.isGrounded=true;
		}
		player.moveSpeed=loopTime*.1;
		if((dbKeyState(17)==1)&&(player.isGrounded)){
			player.disp.x+=(player.moveSpeed*sin(player.facing*toRadian));
			player.disp.z+=(player.moveSpeed*cos(player.facing*toRadian));
		}
		if((dbKeyState(31)==1)&&(player.isGrounded)){
			player.disp.x+=(-player.moveSpeed*sin(player.facing*toRadian));
			player.disp.z+=(-player.moveSpeed*cos(player.facing*toRadian));
		}
		if((dbKeyState(30)==1)&&(player.isGrounded)){
			player.disp.x+=(player.moveSpeed*sin((player.facing-90)*toRadian));
			player.disp.z+=(player.moveSpeed*cos((player.facing-90)*toRadian));
		}
		if((dbKeyState(32)==1)&&(player.isGrounded)){
			player.disp.x+=(player.moveSpeed*sin((player.facing+90)*toRadian));
			player.disp.z+=(player.moveSpeed*cos((player.facing+90)*toRadian));
		}
		if((dbSpaceKey()==1)&&(player.isGrounded)){
			player.vel.y=25;
		}
		if(dbKeyState(18)==1){
			player.facing+=.1*loopTime;
			if(player.facing>=360)player.facing-=360;
		}
		if(dbKeyState(16)==1){
			player.facing-=.1*loopTime;
			if(player.facing<0)player.facing+=360;
		}

		//Update facing and stuff
		player=gravityEffect(player,loopTime);
                weapon_shotgun=gravityEffect(weapon_shotgun,loopTime);

		player.pos.x+=player.disp.x;
		if(player.isGrounded)player.disp.x=0;
		player.pos.z+=player.disp.z;
		if(player.isGrounded)player.disp.z=0;

		dbRotateCamera(dbCameraAngleX(),player.facing,dbCameraAngleZ());
		dbPositionCamera(player.pos.x,player.pos.y,player.pos.z);
		dbPositionObject(weapon_shotgun.id,weapon_shotgun.pos.x,weapon_shotgun.pos.y,weapon_shotgun.pos.z);
		loopTime=dbTimer()-loopTimeCheck;
		loopTimeCheck=dbTimer();
		dbSync();
	}

propPhysics gravityEffect(propPhysics propToTest, double timeElapsed){
	double timeElapsedS=timeElapsed/timeScale;
	if(propToTest.pos.y>dbGetTerrainGroundHeight(terrain,propToTest.pos.x,propToTest.pos.z)+propToTest.height){
		propToTest.isGrounded=false;
	}
	if((propToTest.pos.y)<(dbGetTerrainGroundHeight(terrain,propToTest.pos.x,propToTest.pos.z)+propToTest.height)){
			propToTest.pos.y=dbGetTerrainGroundHeight(terrain,propToTest.pos.x,propToTest.pos.z)+propToTest.height;
			propToTest.vel.y=0;
			propToTest.disp.y=0;
			propToTest.isGrounded=true;
	}
	if(!propToTest.isGrounded)propToTest.vel.y=propToTest.vel.y+((-1*gravity)*timeElapsedS);
	propToTest.disp.y=propToTest.vel.y*timeElapsedS;
	propToTest.pos.y+=propToTest.disp.y;propToTest.disp.y=0;
	return propToTest;
}

class propPhysics{
	private:
		char temp[50];
	public:
		position pos;
		velocity vel;
		displacement disp;
		acceleration accel;
		double height, moveSpeed, pitch, facing;
		int id, health;
		bool isGrounded;

		void updateStats(int timeElapsed){
			double timeElapsedS=timeElapsed/100;

			if(pos.y<dbGetTerrainGroundHeight(terrain,pos.x,pos.z)+height){
				pos.y=dbGetTerrainGroundHeight(terrain,pos.x,pos.z)+height;
				isGrounded=true;
				vel.y=0;
			}
			if(pos.y>dbGetTerrainGroundHeight(terrain,pos.x,pos.z)+height){
				isGrounded=false;
			}

			//Velocity
			moveSpeed=(height/standing)*timeElapsed*1.5;
			if(!isGrounded){
				vel.y+=-.008*gravity*timeElapsed;
			}

			//Angles
			if(facing>360)facing-=360;
			if(facing<0)facing+=360;
			if(pitch>80)pitch=80;
			if(pitch<-70)pitch=-70;

			//Displacement
			disp.x+=vel.x*.0125*moveSpeed;if(isGrounded)vel.x=0;
			disp.z+=vel.z*.0125*moveSpeed;if(isGrounded)vel.z=0;
			disp.y+=vel.y*.0125*moveSpeed;if(isGrounded)vel.y=0;

			//Position
			pos.x+=disp.x;disp.x=0;
			pos.z+=disp.z;disp.z=0;
			pos.y+=disp.y;disp.y=0;

			return;
		}
};