org.metacsp.spatial.geometry.ImpulseMath Maven / Gradle / Ivy

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A Java API for Meta-CSP based reasoning

There is a newer version: 1.3.5

package org.metacsp.spatial.geometry;

public class ImpulseMath
{

	public static final float PI = (float)StrictMath.PI;
	public static final float EPSILON = 0.0001f;
	public static final float EPSILON_SQ = EPSILON * EPSILON;
	public static final float BIAS_RELATIVE = 0.95f;
	public static final float BIAS_ABSOLUTE = 0.01f;
	public static final float DT = 1.0f / 60.0f;
	public static final Vec2 GRAVITY = new Vec2( 0.0f, 50.0f );
//	public static final float RESTING = GRAVITY.mul( DT ).lengthSq() + EPSILON;
	public static final float PENETRATION_ALLOWANCE = 0.0f;
//	public static final float PENETRATION_CORRETION = 0.4f;
	public static final float PENETRATION_CORRETION = 0.0f;

	public static boolean equal( float a, float b )
	{
		return StrictMath.abs( a - b ) <= EPSILON;
	}

	public static float clamp( float min, float max, float a )
	{
		return (a < min ? min : (a > max ? max : a));
	}

	public static int round( float a )
	{
		return (int)(a + 0.5f);
	}

	public static float random( float min, float max )
	{
		return (float)((max - min) * Math.random() + min);
	}

	public static int random( int min, int max )
	{
		return (int)((max - min + 1) * Math.random() + min);
	}

	public static boolean gt( float a, float b )
	{
		return a >= b * BIAS_RELATIVE + a * BIAS_ABSOLUTE;
	}
}