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pixi-spine-debug.js
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((PIXI)=>{
PIXI = PIXI || window.PIXI;
if(PIXI && PIXI.spine && PIXI.spine.Spine){
class SpineDebug{
constructor(spine){
this.spine = spine;
this.skeleton = spine.skeleton;
this.init();
}
init(){
const _ts = this,
spine = _ts.spine;
let list = _ts.list = [
// 'bonesLine','bonesDots', // 骨骼
'bones','skeletonXY',
'regionAttachmentsShape', // 区块
'meshTrianglesLine','meshHullLine', // 蒙皮
'clippingPolygon', // 蒙版
'boundingBoxesRect','boundingBoxesCircle','boundingBoxesPolygon', // 边界框
'pathsCurve','pathsLine' // 路径
],
ghs = _ts.ghs = {},
debugGroup = _ts.debugGroup = new PIXI.Container();
// 创建图形，并添加到debug容器
for(let i=0,len=list.length; i<len; i++){
let name = list[i];
ghs[name] = name === 'bones' ? new PIXI.Container() : new PIXI.Graphics();
debugGroup.addChild(ghs[name]);
};
spine.addChild(debugGroup);
}
update(){
const _ts = this,
spine = _ts.spine,
ghs = _ts.ghs;
_ts.scale = spine.scale.x || spine.scale.y || 1;
_ts.lineWidth = 1 / Math.abs(_ts.scale);
// 清除绘制
for(let key in ghs){
if(ghs[key] instanceof PIXI.Graphics){
ghs[key].clear();
}else if(ghs[key] instanceof PIXI.Container){
for(let len=ghs[key].children.length; len > 0; len--){
ghs[key].children[len - 1].destroy({children:true,texture:true,baseTexture:true});
};
};
};
// 绘制骨骼
if(spine.drawBones){
_ts.drawBones();
};
// 绘制路径
if(spine.drawPaths){
_ts.drawPaths();
};
// 绘制边界框
if(spine.drawBoundingBoxes){
_ts.drawBoundingBoxes();
};
// 绘制蒙版区域
if(spine.drawClipping){
_ts.drawClipping();
};
// 绘制蒙皮
if(spine.drawMeshHull || spine.drawMeshTriangles){
_ts.drawMeshHullAndMeshTriangles();
};
// 绘制区块附件
if(spine.drawRegionAttachments){
_ts.drawRegionAttachments();
};
}
// 绘制区块附件
drawRegionAttachments(){
const _ts = this,
ghs = _ts.ghs,
skeleton = _ts.skeleton,
slots = skeleton.slots,
lineWidth = _ts.lineWidth;
ghs.regionAttachmentsShape.lineStyle(lineWidth,0x0078FF,1);
for(let i=0,len=slots.length; i<len; i++){
let slot = slots[i],
attachment = slot.getAttachment();
if(!(attachment instanceof PIXI.spine.core.RegionAttachment)){continue;};
let vertices = new Float32Array(8);
attachment.updateOffset();
attachment.computeWorldVertices(slot.bone,vertices,0,2);
ghs.regionAttachmentsShape.drawPolygon([...vertices.slice(0,8)]);
// ghs.regionAttachmentsShape.moveTo(vertices[0],vertices[1]);
// ghs.regionAttachmentsShape.lineTo(vertices[2],vertices[3]);
// ghs.regionAttachmentsShape.lineTo(vertices[4],vertices[5]);
// ghs.regionAttachmentsShape.lineTo(vertices[6],vertices[7]);
// ghs.regionAttachmentsShape.lineTo(vertices[0],vertices[1]);
};
}
// 绘制蒙皮
drawMeshHullAndMeshTriangles(){
const _ts = this,
spine = _ts.spine,
ghs = _ts.ghs,
skeleton = _ts.skeleton,
slots = skeleton.slots,
lineWidth = _ts.lineWidth;
ghs.meshHullLine.lineStyle(lineWidth,0x0078FF,1);
ghs.meshTrianglesLine.lineStyle(lineWidth,0xFFCC00,1);
for(let i=0,len=slots.length; i<len; i++){
let slot = slots[i];
if(!slot.bone.active){continue;};
let attachment = slot.getAttachment();
if(!(attachment instanceof PIXI.spine.core.MeshAttachment)){continue;};
let vertices = new Float32Array(attachment.vertices.length),
triangles = attachment.triangles,
hullLength = attachment.hullLength;
attachment.computeWorldVertices(slot, 0, attachment.worldVerticesLength, vertices, 0, 2);
// 画蒙皮网格（三角形）
if(spine.drawMeshTriangles){
for(let _i=0,_len=triangles.length; _i<_len; _i+=3){
let v1 = triangles[_i] * 2,
v2 = triangles[_i + 1] * 2,
v3 = triangles[_i + 2] * 2;
ghs.meshTrianglesLine.moveTo(vertices[v1],vertices[v1 + 1]);
ghs.meshTrianglesLine.lineTo(vertices[v2],vertices[v2 + 1]);
ghs.meshTrianglesLine.lineTo(vertices[v3],vertices[v3 + 1]);
};
};
// 画蒙皮边框
if(spine.drawMeshHull && hullLength > 0){
hullLength = (hullLength >> 1) * 2;
let lastX = vertices[hullLength - 2],
lastY = vertices[hullLength - 1];
for(let _i=0,_len=hullLength; _i<_len; _i+=2){
let x = vertices[_i],
y = vertices[_i + 1];
ghs.meshHullLine.moveTo(x,y);
ghs.meshHullLine.lineTo(lastX,lastY);
lastX = x;
lastY = y;
};
};
};
}
// 蒙版区域
drawClipping(){
const _ts = this,
ghs = _ts.ghs,
skeleton = _ts.skeleton,
slots = skeleton.slots,
lineWidth = _ts.lineWidth;
ghs.clippingPolygon.lineStyle(lineWidth,0xFF00FF,1);
for(let i=0,len=slots.length; i<len; i++){
let slot = slots[i];
if(!slot.bone.active){continue;};
let attachment = slot.getAttachment();
if(!(attachment instanceof PIXI.spine.core.ClippingAttachment)){continue;};
let nn = attachment.worldVerticesLength,
world = new Float32Array(nn);
attachment.computeWorldVertices(slot, 0, nn, world, 0, 2);
ghs.clippingPolygon.drawPolygon([...world]);
};
}
// 绘制边界框
drawBoundingBoxes(){
const _ts = this,
ghs = _ts.ghs,
lineWidth = _ts.lineWidth;
// 绘制边界框的总外框
ghs.boundingBoxesRect.lineStyle(lineWidth,0x00FF00,5);
let bounds = new PIXI.spine.core.SkeletonBounds();
bounds.update(this.skeleton, true);
ghs.boundingBoxesRect.drawRect(bounds.minX, bounds.minY, bounds.getWidth(), bounds.getHeight());
let polygons = bounds.polygons,
drawPolygon = (polygonVertices,offset,count)=>{
ghs.boundingBoxesPolygon.lineStyle(lineWidth,0x00FF00,1);
ghs.boundingBoxesPolygon.beginFill(0x00FF00,0.1);
if(count < 3){
throw new Error('Polygon must contain at least 3 vertices');
};
let paths = [],
dotSize = lineWidth * 2;
for(let i=0,len=polygonVertices.length; i<len; i+=2){
let x1 = polygonVertices[i],
y1 = polygonVertices[i+1];
// 绘制边界框节点
ghs.boundingBoxesCircle.lineStyle(0);
ghs.boundingBoxesCircle.beginFill(0x00DD00);
ghs.boundingBoxesCircle.drawCircle(x1,y1,dotSize);
ghs.boundingBoxesCircle.endFill();
paths.push(x1,y1);
};
// 绘制边界框区域
ghs.boundingBoxesPolygon.drawPolygon(paths);
ghs.boundingBoxesPolygon.endFill();
};
for(let i=0,len=polygons.length; i<len; i++){
let polygon = polygons[i]
drawPolygon(polygon,0,polygon.length);
};
}
// 绘制路径
drawPaths(){
const _ts = this,
lineWidth = _ts.lineWidth,
skeleton = _ts.skeleton,
slots = skeleton.slots,
ghs = _ts.ghs;
ghs.pathsCurve.lineStyle(lineWidth,0xFF0000,1);
ghs.pathsLine.lineStyle(lineWidth,0xFF00FF,1);
for(let i=0,len=slots.length; i<len; i++){
let slot = slots[i];
if (!slot.bone.active){continue;};
let attachment = slot.getAttachment();
if(attachment instanceof PIXI.spine.core.PathAttachment){
let nn = attachment.worldVerticesLength,
world = new Float32Array(nn);
attachment.computeWorldVertices(slot, 0, nn, world, 0, 2);
let x1 = world[2],
y1 = world[3],
x2 = 0,
y2 = 0;
if(attachment.closed){
let cx1 = world[0],
cy1 = world[1],
cx2 = world[nn - 2],
cy2 = world[nn - 1];
x2 = world[nn - 4];
y2 = world[nn - 3];
// 曲线
ghs.pathsCurve.moveTo(x1,y1);
ghs.pathsCurve.bezierCurveTo(cx1, cy1, cx2, cy2, x2, y2);
// 句柄
ghs.pathsLine.moveTo(x1,y1);
ghs.pathsLine.lineTo(cx1,cy1);
ghs.pathsLine.moveTo(x2,y2);
ghs.pathsLine.lineTo(cx2,cy2);
};
nn -= 4;
for (var ii = 4; ii < nn; ii += 6) {
var cx1 = world[ii], cy1 = world[ii + 1], cx2 = world[ii + 2], cy2 = world[ii + 3];
x2 = world[ii + 4];
y2 = world[ii + 5];
// 曲线
ghs.pathsCurve.moveTo(x1,y1);
ghs.pathsCurve.bezierCurveTo(cx1, cy1, cx2, cy2, x2, y2);
// 句柄
ghs.pathsLine.moveTo(x1,y1);
ghs.pathsLine.lineTo(cx1,cy1);
ghs.pathsLine.moveTo(x2,y2);
ghs.pathsLine.lineTo(cx2,cy2);
x1 = x2;
y1 = y2;
}
};
};
}
// 绘制骨骼
drawBones(){
const _ts = this,
lineWidth = _ts.lineWidth,
skeleton = _ts.skeleton,
skeletonX = skeleton.x,
skeletonY = skeleton.y,
bones = skeleton.bones,
ghs = _ts.ghs;
ghs.skeletonXY.lineStyle(lineWidth, 0xFF0000, 1);
for(let i=0,len=bones.length; i<len; i++){
let bone = bones[i],
boneLen = bone.data.length,
starX = skeletonX + bone.worldX,
starY = skeletonY + bone.worldY,
endX = skeletonX + boneLen * bone.matrix.a + bone.worldX,
endY = skeletonY + boneLen * bone.matrix.b + bone.worldY;
if(bone.data.name === 'root' || bone.parent === null){continue;};
// 三角形计算公式
// 面积 A=sqrt((a+b+c)*(-a+b+c)*(a-b+c)*(a+b-c))/4
// 阿尔法 alpha=acos((pow(b, 2)+pow(c, 2)-pow(a, 2))/(2*b*c))
// 贝塔 beta=acos((pow(a, 2)+pow(c, 2)-pow(b, 2))/(2*a*c))
// 伽马 gamma=acos((pow(a, 2)+pow(b, 2)-pow(c, 2))/(2*a*b))
let w = Math.abs(starX - endX),
h = Math.abs(starY - endY),
// a = w, // 边长a
a2 = Math.pow(w,2), // 边长a平方根
b = h, // 边长b
b2 = Math.pow(h,2), // 边长b平方根
c = Math.sqrt(a2 + b2), // 边长c
c2 = Math.pow(c,2), // 边长c平方根
rad = Math.PI / 180,
// A = Math.acos([a2 + c2 - b2] / [2 * a * c]) || 0, // A角角度
// C = Math.acos([a2 + b2 - c2] / [2 * a * b]) || 0, // C角角度
B = Math.acos([c2 + b2 - a2] / [2 * b * c]) || 0; // B角角度
if(c === 0){continue;};
let gp = new PIXI.Graphics();
ghs.bones.addChild(gp);
// 绘制骨骼线条
let refRation = c / 50 / _ts.scale;
gp.beginFill(0x00EECC,1);
gp.drawPolygon(
0,0,
0 - refRation, c - refRation * 3,
0, c - refRation,
0 + refRation, c - refRation * 3
);
gp.endFill();
gp.x = starX;
gp.y = starY;
gp.pivot.y = c;
// 计算骨骼旋转角度
let rotation = 0;
if(starX < endX && starY < endY){ // 右下
rotation = -B + 180 * rad;
}else if(starX > endX && starY < endY){ // 左下
rotation = 180 * rad + B;
}else if(starX > endX && starY > endY){ // 左上
rotation = -B;
}else if(starX < endX && starY > endY){ // 左下
rotation = B;
}else if(starY === endY && starX < endX){ // 向右
rotation = 90 * rad;
}else if(starY === endY && starX > endX){ // 向左
rotation = -90 * rad;
}else if(starX === endX && starY < endY){ // 向下
rotation = 180 * rad;
}else if(starX === endX && starY > endY){ // 向上
rotation = 0;
};
gp.rotation = rotation;
// 绘制骨骼起始旋转点
gp.lineStyle(lineWidth + refRation / 2.4,0x00EECC,1)
gp.beginFill(0x000000,0.6);
gp.drawCircle(0,c,refRation * 1.2);
gp.endFill();
};
// 绘制骨架起点『X』形式
let startDotSize = lineWidth * 3;
ghs.skeletonXY.moveTo(skeletonX - startDotSize,skeletonY - startDotSize);
ghs.skeletonXY.lineTo(skeletonX + startDotSize,skeletonY + startDotSize);
ghs.skeletonXY.moveTo(skeletonX + startDotSize,skeletonY - startDotSize);
ghs.skeletonXY.lineTo(skeletonX - startDotSize,skeletonY + startDotSize);
}
};
const Spine = PIXI.spine.Spine,
oldUpadte = Spine.prototype.update,
drawDebug = function(){
if(!this.drawDebug){
return;
};
if(!this.spineDebug){
this.spineDebug = new SpineDebug(this);
};
this.spineDebug.update();
};
Spine.prototype.updateMyDebugGraphics = drawDebug;
Spine.prototype.update = function(dt){
oldUpadte.call(this,dt);
this.updateMyDebugGraphics();
};
};
})(PIXI);