dragonbones-runtime
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the tools to build dragonbones file for diffrent framework
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text/typescript
/**
* The MIT License (MIT)
*
* Copyright (c) 2012-2017 DragonBones team and other contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
namespace dragonBones {
/**
* - 2D Transform.
* @version DragonBones 3.0
* @language en_US
*/
/**
* - 2D 变换。
* @version DragonBones 3.0
* @language zh_CN
*/
export class Transform {
/**
* @private
*/
public static readonly PI: number = Math.PI;
/**
* @private
*/
public static readonly PI_D: number = Math.PI * 2.0;
/**
* @private
*/
public static readonly PI_H: number = Math.PI / 2.0;
/**
* @private
*/
public static readonly PI_Q: number = Math.PI / 4.0;
/**
* @private
*/
public static readonly RAD_DEG: number = 180.0 / Math.PI;
/**
* @private
*/
public static readonly DEG_RAD: number = Math.PI / 180.0;
/**
* @private
*/
public static normalizeRadian(value: number): number {
value = (value + Math.PI) % (Math.PI * 2.0);
value += value > 0.0 ? -Math.PI : Math.PI;
return value;
}
/**
* - Horizontal translate.
* @version DragonBones 3.0
* @language en_US
*/
/**
* - 水平位移。
* @version DragonBones 3.0
* @language zh_CN
*/
public x: number;
/**
* - Vertical translate.
* @version DragonBones 3.0
* @language en_US
*/
/**
* - 垂直位移。
* @version DragonBones 3.0
* @language zh_CN
*/
public y: number;
/**
* - Skew. (In radians)
* @version DragonBones 3.0
* @language en_US
*/
/**
* - 倾斜。 （以弧度为单位）
* @version DragonBones 3.0
* @language zh_CN
*/
public skew: number;
/**
* - rotation. (In radians)
* @version DragonBones 3.0
* @language en_US
*/
/**
* - 旋转。 （以弧度为单位）
* @version DragonBones 3.0
* @language zh_CN
*/
public rotation: number;
/**
* - Horizontal Scaling.
* @version DragonBones 3.0
* @language en_US
*/
/**
* - 水平缩放。
* @version DragonBones 3.0
* @language zh_CN
*/
public scaleX: number;
/**
* - Vertical scaling.
* @version DragonBones 3.0
* @language en_US
*/
/**
* - 垂直缩放。
* @version DragonBones 3.0
* @language zh_CN
*/
public scaleY: number;
/**
* @private
*/
public constructor(x: number = 0.0, y: number = 0.0, skew: number = 0.0, rotation: number = 0.0, scaleX: number = 1.0, scaleY: number = 1.0) {
this.x = x;
this.y = y;
this.skew = skew;
this.rotation = rotation;
this.scaleX = scaleX;
this.scaleY = scaleY;
}
public toString(): string {
return "[object dragonBones.Transform] x:" + this.x + " y:" + this.y + " skewX:" + this.skew * 180.0 / Math.PI + " skewY:" + this.rotation * 180.0 / Math.PI + " scaleX:" + this.scaleX + " scaleY:" + this.scaleY;
}
/**
* @private
*/
public copyFrom(value: Transform): Transform {
this.x = value.x;
this.y = value.y;
this.skew = value.skew;
this.rotation = value.rotation;
this.scaleX = value.scaleX;
this.scaleY = value.scaleY;
return this;
}
/**
* @private
*/
public identity(): Transform {
this.x = this.y = 0.0;
this.skew = this.rotation = 0.0;
this.scaleX = this.scaleY = 1.0;
return this;
}
/**
* @private
*/
public add(value: Transform): Transform {
this.x += value.x;
this.y += value.y;
this.skew += value.skew;
this.rotation += value.rotation;
this.scaleX *= value.scaleX;
this.scaleY *= value.scaleY;
return this;
}
/**
* @private
*/
public minus(value: Transform): Transform {
this.x -= value.x;
this.y -= value.y;
this.skew -= value.skew;
this.rotation -= value.rotation;
this.scaleX /= value.scaleX;
this.scaleY /= value.scaleY;
return this;
}
/**
* @private
*/
public fromMatrix(matrix: Matrix): Transform {
const backupScaleX = this.scaleX, backupScaleY = this.scaleY;
const PI_Q = Transform.PI_Q;
this.x = matrix.tx;
this.y = matrix.ty;
this.rotation = Math.atan(matrix.b / matrix.a);
let skewX = Math.atan(-matrix.c / matrix.d);
this.scaleX = (this.rotation > -PI_Q && this.rotation < PI_Q) ? matrix.a / Math.cos(this.rotation) : matrix.b / Math.sin(this.rotation);
this.scaleY = (skewX > -PI_Q && skewX < PI_Q) ? matrix.d / Math.cos(skewX) : -matrix.c / Math.sin(skewX);
if (backupScaleX >= 0.0 && this.scaleX < 0.0) {
this.scaleX = -this.scaleX;
this.rotation = this.rotation - Math.PI;
}
if (backupScaleY >= 0.0 && this.scaleY < 0.0) {
this.scaleY = -this.scaleY;
skewX = skewX - Math.PI;
}
this.skew = skewX - this.rotation;
return this;
}
/**
* @private
*/
public toMatrix(matrix: Matrix): Transform {
if (this.rotation === 0.0) {
matrix.a = 1.0;
matrix.b = 0.0;
}
else {
matrix.a = Math.cos(this.rotation);
matrix.b = Math.sin(this.rotation);
}
if (this.skew === 0.0) {
matrix.c = -matrix.b;
matrix.d = matrix.a;
}
else {
matrix.c = -Math.sin(this.skew + this.rotation);
matrix.d = Math.cos(this.skew + this.rotation);
}
if (this.scaleX !== 1.0) {
matrix.a *= this.scaleX;
matrix.b *= this.scaleX;
}
if (this.scaleY !== 1.0) {
matrix.c *= this.scaleY;
matrix.d *= this.scaleY;
}
matrix.tx = this.x;
matrix.ty = this.y;
return this;
}
}
}