// C Source File
// Created 01/10/2007 09:16:38 PM
// Star Blaster by Tyler Cassidy
// Version 1.00
// Email: tyler@tylerc.org || altadogsledder89@yahoo.ca

//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.

//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.

#include <tigcclib.h>
#include "include.h"

/* Calculate Final Velocity from Initial Velocity & speed */
/* speed: 0 = reverse, 1 = drift, 2 = go, 3 = speed boost */
long velocityFinal(long vi, unsigned char speed)
{
	long vf;
	
	switch(speed)
	{
		case 0: // Reverse
			vf = vi - ACEL_RATE;
		break;
		default:
		case 1: // Drift
			vf = vi - DECEL_RATE;
		break;
		case 2: // Go
			vf = vi + ACEL_RATE;
		break;
		case 3: // Speed Boost
			vf = vi + ACEL_SRATE;
		break;
	}
	
	return vf;
}

/* Calculate new X Coordinate from Velocity, angle and oldX */
long newDest_x(short angle, long velocity, long oldX)
{
	return CosCalc(angle, (short)velocity) + oldX;
}

/* Calculate new Y Coordinate from Velocity, angle and oldY */
long newDest_y(short angle, long velocity, long oldY)
{
	return SinCalc(angle, (short)velocity) + oldY;
}