forked from LeenkxTeam/LNXSDK
84 lines
2.4 KiB
Haxe
84 lines
2.4 KiB
Haxe
package kha.math;
|
|
|
|
class FastMatrix2 {
|
|
static inline var width: Int = 2;
|
|
static inline var height: Int = 2;
|
|
|
|
public var _00: FastFloat;
|
|
public var _10: FastFloat;
|
|
public var _01: FastFloat;
|
|
public var _11: FastFloat;
|
|
|
|
public inline function new(_00: FastFloat, _10: FastFloat, _01: FastFloat, _11: FastFloat) {
|
|
this._00 = _00;
|
|
this._10 = _10;
|
|
this._01 = _01;
|
|
this._11 = _11;
|
|
}
|
|
|
|
/*@:arrayAccess public inline function get(index: Int): Float {
|
|
return this[index];
|
|
}
|
|
|
|
@:arrayAccess public inline function set(index: Int, value: Float): Float {
|
|
this[index] = value;
|
|
return value;
|
|
}
|
|
|
|
public static function index(x: Int, y: Int): Int {
|
|
return y * width + x;
|
|
}*/
|
|
extern public inline function setFrom(m: FastMatrix2): Void {
|
|
this._00 = m._00;
|
|
this._10 = m._10;
|
|
this._01 = m._01;
|
|
this._11 = m._11;
|
|
}
|
|
|
|
extern public static inline function empty(): FastMatrix2 {
|
|
return new FastMatrix2(0, 0, 0, 0);
|
|
}
|
|
|
|
extern public static inline function identity(): FastMatrix2 {
|
|
return new FastMatrix2(1, 0, 0, 1);
|
|
}
|
|
|
|
extern public static inline function scale(x: FastFloat, y: FastFloat): FastMatrix2 {
|
|
return new FastMatrix2(x, 0, 0, y);
|
|
}
|
|
|
|
extern public static inline function rotation(alpha: FastFloat): FastMatrix2 {
|
|
return new FastMatrix2(Math.cos(alpha), -Math.sin(alpha), Math.sin(alpha), Math.cos(alpha));
|
|
}
|
|
|
|
extern public inline function add(m: FastMatrix2): FastMatrix2 {
|
|
return new FastMatrix2(_00 + m._00, _10 + m._10, _01 + m._01, _11 + m._11);
|
|
}
|
|
|
|
extern public inline function sub(m: FastMatrix2): FastMatrix2 {
|
|
return new FastMatrix2(_00 - m._00, _10 - m._10, _01 - m._01, _11 - m._11);
|
|
}
|
|
|
|
extern public inline function mult(value: FastFloat): FastMatrix2 {
|
|
return new FastMatrix2(_00 * value, _10 * value, _01 * value, _11 * value);
|
|
}
|
|
|
|
extern public inline function transpose(): FastMatrix2 {
|
|
return new FastMatrix2(_00, _01, _10, _11);
|
|
}
|
|
|
|
extern public inline function trace(): FastFloat {
|
|
return _00 + _11;
|
|
}
|
|
|
|
extern public inline function multmat(m: FastMatrix2): FastMatrix2 {
|
|
return new FastMatrix2(_00 * m._00 + _10 * m._01, _00 * m._10 + _10 * m._11, _01 * m._00 + _11 * m._01, _01 * m._10 + _11 * m._11);
|
|
}
|
|
|
|
extern public inline function multvec(value: FastVector2): FastVector2 {
|
|
var x = _00 * value.x + _10 * value.y;
|
|
var y = _01 * value.x + _11 * value.y;
|
|
return new FastVector2(x, y);
|
|
}
|
|
}
|