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优化vector2构造函数

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This commit is contained in:
yhh
2021-05-24 17:20:27 +08:00
parent 9c7703eb2d
commit da3ab02a8d
20 changed files with 177 additions and 109 deletions
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4
source/src/Utils/Extensions/RectangleExt.ts
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@@ -250,7 +250,7 @@ module es {
*/
public static getClosestPointOnRectangleToPoint(rect: Rectangle, point: Vector2) {
// 对于每个轴，如果该点在盒子外面，则将在盒子上，否则不理会它
let res = new Vector2();
let res = es.Vector2.zero;
res.x = MathHelper.clamp(point.x, rect.left, rect.right)
res.y = MathHelper.clamp(point.y, rect.top, rect.bottom);
@@ -264,7 +264,7 @@ module es {
*/
public static getClosestPointOnRectangleBorderToPoint(rect: Rectangle, point: Vector2) {
// 对于每个轴，如果该点在盒子外面，则将在盒子上，否则不理会它
let res = new Vector2();
let res = es.Vector2.zero;
res.x = MathHelper.clamp(point.x, rect.left, rect.right)
res.y = MathHelper.clamp(point.y, rect.top, rect.bottom);

6
source/src/Utils/Extensions/Vector2Ext.ts
View File

@@ -71,7 +71,7 @@ module es {
* @param d
* @param intersection
*/
public static getRayIntersection(a: Vector2, b: Vector2, c: Vector2, d: Vector2, intersection: Vector2 = new Vector2()) {
public static getRayIntersection(a: Vector2, b: Vector2, c: Vector2, d: Vector2, intersection: Vector2 = es.Vector2.zero) {
let dy1 = b.y - a.y;
let dx1 = b.x - a.x;
let dy2 = d.y - c.y;
@@ -99,7 +99,7 @@ module es {
public static normalize(vec: Vector2) {
let magnitude = Math.sqrt((vec.x * vec.x) + (vec.y * vec.y));
if (magnitude > MathHelper.Epsilon) {
vec.divide(new Vector2(magnitude));
vec.divideScaler(magnitude);
} else {
vec.x = vec.y = 0;
}
@@ -131,7 +131,7 @@ module es {
* @param matrix
* @param result
*/
public static transformR(position: Vector2, matrix: Matrix2D, result: Vector2 = new Vector2()) {
public static transformR(position: Vector2, matrix: Matrix2D, result: Vector2 = es.Vector2.zero) {
let x = (position.x * matrix.m11) + (position.y * matrix.m21) + matrix.m31;
let y = (position.x * matrix.m12) + (position.y * matrix.m22) + matrix.m32;
result.x = x;