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对像素进行取整保证在不同分辨率下保持清晰

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This commit is contained in:
yhh
2021-05-25 11:16:49 +08:00
parent da3ab02a8d
commit 6c44d38c10
8 changed files with 53 additions and 45 deletions
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4
source/src/Math/MathHelper.ts
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@@ -456,6 +456,10 @@ module es {
return t - Math.floor(t / length) * length;
}
public static floorToInt(f: number) {
return Math.trunc(Math.floor(f));
}
/**
* 将值绕一圈移动的助手
* @param position

22
source/src/Math/Rectangle.ts
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@@ -411,10 +411,10 @@ module es {
public calculateBounds(parentPosition: Vector2, position: Vector2, origin: Vector2, scale: Vector2,
rotation: number, width: number, height: number) {
if (rotation == 0) {
this.x = parentPosition.x + position.x - origin.x * scale.x;
this.y = parentPosition.y + position.y - origin.y * scale.y;
this.width = width * scale.x;
this.height = height * scale.y;
this.x = Math.trunc(parentPosition.x + position.x - origin.x * scale.x);
this.y = Math.trunc(parentPosition.y + position.y - origin.y * scale.y);
this.width = Math.trunc(width * scale.x);
this.height = Math.trunc(height * scale.y);
} else {
// 我们需要找到我们的绝对最小/最大值，并据此创建边界
let worldPosX = parentPosition.x + position.x;
@@ -441,14 +441,14 @@ module es {
Vector2Ext.transformR(bottomRight, this._transformMat, bottomRight);
// 找出最小值和最大值，这样我们就可以计算出我们的边界框。
let minX = Math.min(topLeft.x, bottomRight.x, topRight.x, bottomLeft.x);
let maxX = Math.max(topLeft.x, bottomRight.x, topRight.x, bottomLeft.x);
let minY = Math.min(topLeft.y, bottomRight.y, topRight.y, bottomLeft.y);
let maxY = Math.max(topLeft.y, bottomRight.y, topRight.y, bottomLeft.y);
let minX = Math.trunc(Math.min(topLeft.x, bottomRight.x, topRight.x, bottomLeft.x));
let maxX = Math.trunc(Math.max(topLeft.x, bottomRight.x, topRight.x, bottomLeft.x));
let minY = Math.trunc(Math.min(topLeft.y, bottomRight.y, topRight.y, bottomLeft.y));
let maxY = Math.trunc(Math.max(topLeft.y, bottomRight.y, topRight.y, bottomLeft.y));
this.location = new Vector2(minX, minY);
this.width = maxX - minX;
this.height = maxY - minY;
this.width = Math.trunc(maxX - minX);
this.height = Math.trunc(maxY - minY);
}
}
@@ -549,7 +549,7 @@ module es {
* 获取这个矩形的哈希码
*/
public getHashCode(): number{
return (this.x ^ this.y ^ this.width ^ this.height);
return (Math.trunc(this.x) ^ Math.trunc(this.y) ^ Math.trunc(this.width) ^ Math.trunc(this.height));
}
public clone(): Rectangle {

2
source/src/Math/SubpixelFloat.ts
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@@ -16,7 +16,7 @@ module es {
*/
public update(amount: number){
this.remainder += amount;
let motion = Math.floor(Math.trunc(this.remainder));
let motion = Math.trunc(this.remainder);
this.remainder -= motion;
amount = motion;
return amount;