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新增跟随相机

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This commit is contained in:
YHH
2020-06-19 09:16:49 +08:00
parent b83b1a5b21
commit 981e149ca5
14 changed files with 509 additions and 31 deletions
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51
source/src/Math/Rectangle.ts
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@@ -23,7 +23,7 @@ class Rectangle {
return this.y + this.height;
}
public get center(){
public get center() {
return new Vector2(this.x + (this.width / 2), this.y + (this.height / 2));
}
@@ -36,6 +36,15 @@ class Rectangle {
this.y = value.y;
}
public get size() {
return new Vector2(this.width, this.height);
}
public set size(value: Vector2) {
this.width = value.x;
this.height = value.y;
}
constructor(x?: number, y?: number, width?: number, height?: number) {
this.x = x ? x : 0;
this.y = y ? y : 0;
@@ -56,53 +65,59 @@ class Rectangle {
(value.y < (this.y + this.height)));
}
public containsRect(value: Rectangle) {
return ((((this.x <= value.x) && (value.x < (this.x + this.width))) &&
(this.y <= value.y)) &&
(value.y < (this.y + this.height)));
}
public static fromMinMax(minX: number, minY: number, maxX: number, maxY: number) {
return new Rectangle(minX, minY, maxX - minX, maxY - minY);
}
public getClosestPointOnRectangleBorderToPoint(point: Point): {res: Vector2, edgeNormal: Vector2} {
public getClosestPointOnRectangleBorderToPoint(point: Point): { res: Vector2, edgeNormal: Vector2 } {
let edgeNormal = new Vector2(0, 0);
let res = new Vector2(0, 0);
res.x = MathHelper.clamp(point.x, this.left, this.right);
res.y = MathHelper.clamp(point.y, this.top, this.bottom);
if (this.contains(res)){
if (this.contains(res)) {
let dl = res.x - this.left;
let dr = this.right - res.x;
let dt = res.y - this.top;
let db = this.bottom - res.y;
let min = Math.min(dl, dr, dt, db);
if (min == dt){
if (min == dt) {
res.y = this.top;
edgeNormal.y = -1;
} else if(min == db){
} else if (min == db) {
res.y = this.bottom;
edgeNormal.y = 1;
} else if(min == dl){
} else if (min == dl) {
res.x = this.left;
edgeNormal.x = -1;
} else{
} else {
res.x = this.right;
edgeNormal.x = 1;
}
} else {
if (res.x == this.left){
if (res.x == this.left) {
edgeNormal.x = -1;
}
if (res.x == this.right){
if (res.x == this.right) {
edgeNormal.x = 1;
}
if (res.y == this.top){
if (res.y == this.top) {
edgeNormal.y = -1;
}
if (res.y == this.bottom){
if (res.y == this.bottom) {
edgeNormal.y = 1;
}
}
return {res: res, edgeNormal: edgeNormal};
return { res: res, edgeNormal: edgeNormal };
}
public calculateBounds(parentPosition: Vector2, position: Vector2, origin: Vector2, scale: Vector2,
@@ -149,26 +164,26 @@ class Rectangle {
* 给定多边形的点，计算边界
* @param points
*/
public static rectEncompassingPoints(points: Vector2[]){
public static rectEncompassingPoints(points: Vector2[]) {
let minX = Number.POSITIVE_INFINITY;
let minY = Number.POSITIVE_INFINITY;
let maxX = Number.NEGATIVE_INFINITY;
let maxY = Number.NEGATIVE_INFINITY;
for (let i = 0; i < points.length; i ++){
for (let i = 0; i < points.length; i++) {
let pt = points[i];
if (pt.x < minX){
if (pt.x < minX) {
minX = pt.x;
}
if (pt.x > maxX){
if (pt.x > maxX) {
maxX = pt.x;
}
if (pt.y < minY){
if (pt.y < minY) {
minY = pt.y;
}
if (pt.y > maxY){
if (pt.y > maxY) {
maxY = pt.y;
}
}