1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 | /** * @author Mat Groves http://matgroves.com/ @Doormat23 */ /** * The Graphics class contains a set of methods that you can use to create primitive shapes and lines. * It is important to know that with the webGL renderer only simple polys can be filled at this stage * Complex polys will not be filled. Heres an example of a complex poly: http://www.goodboydigital.com/wp-content/uploads/2013/06/complexPolygon.png * * @class Graphics * @extends DisplayObjectContainer * @constructor */ PIXI.Graphics = function() { PIXI.DisplayObjectContainer.call( this ); this.renderable = true; /** * The alpha of the fill of this graphics object * * @property fillAlpha * @type Number */ this.fillAlpha = 1; /** * The width of any lines drawn * * @property lineWidth * @type Number */ this.lineWidth = 0; /** * The color of any lines drawn * * @property lineColor * @type String */ this.lineColor = "black"; /** * Graphics data * * @property graphicsData * @type Array * @private */ this.graphicsData = []; this.tint = 0xFFFFFF;// * Math.random(); this.blendMode = PIXI.blendModes.NORMAL; /** * Current path * * @property currentPath * @type Object * @private */ this.currentPath = {points:[]}; this._webGL = []; this.isMask = false; this.bounds = null; this.boundsPadding = 10; }; // constructor PIXI.Graphics.prototype = Object.create( PIXI.DisplayObjectContainer.prototype ); PIXI.Graphics.prototype.constructor = PIXI.Graphics; /** * If cacheAsBitmap is true the graphics object will then be rendered as if it was a sprite. * This is useful if your graphics element does not change often as it will speed up the rendering of the object * It is also usful as the graphics object will always be aliased because it will be rendered using canvas * Not recommended if you are conastanly redrawing the graphics element. * * @property cacheAsBitmap * @default false * @type Boolean * @private */ Object.defineProperty(PIXI.Graphics.prototype, "cacheAsBitmap", { get: function() { return this._cacheAsBitmap; }, set: function(value) { this._cacheAsBitmap = value; if(this._cacheAsBitmap) { this._generateCachedSprite(); } else { this.destroyCachedSprite(); this.dirty = true; } } }); /** * Specifies a line style used for subsequent calls to Graphics methods such as the lineTo() method or the drawCircle() method. * * @method lineStyle * @param lineWidth {Number} width of the line to draw, will update the object's stored style * @param color {Number} color of the line to draw, will update the object's stored style * @param alpha {Number} alpha of the line to draw, will update the object's stored style */ PIXI.Graphics.prototype.lineStyle = function(lineWidth, color, alpha) { if (!this.currentPath.points.length) this.graphicsData.pop(); this.lineWidth = lineWidth || 0; this.lineColor = color || 0; this.lineAlpha = (arguments.length < 3) ? 1 : alpha; this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha, fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling, points:[], type:PIXI.Graphics.POLY}; this.graphicsData.push(this.currentPath); }; /** * Moves the current drawing position to (x, y). * * @method moveTo * @param x {Number} the X coord to move to * @param y {Number} the Y coord to move to */ PIXI.Graphics.prototype.moveTo = function(x, y) { if (!this.currentPath.points.length) this.graphicsData.pop(); this.currentPath = this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha, fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling, points:[], type:PIXI.Graphics.POLY}; this.currentPath.points.push(x, y); this.graphicsData.push(this.currentPath); }; /** * Draws a line using the current line style from the current drawing position to (x, y); * the current drawing position is then set to (x, y). * * @method lineTo * @param x {Number} the X coord to draw to * @param y {Number} the Y coord to draw to */ PIXI.Graphics.prototype.lineTo = function(x, y) { this.currentPath.points.push(x, y); this.dirty = true; }; /** * Specifies a simple one-color fill that subsequent calls to other Graphics methods * (such as lineTo() or drawCircle()) use when drawing. * * @method beginFill * @param color {uint} the color of the fill * @param alpha {Number} the alpha */ PIXI.Graphics.prototype.beginFill = function(color, alpha) { this.filling = true; this.fillColor = color || 0; this.fillAlpha = (arguments.length < 2) ? 1 : alpha; }; /** * Applies a fill to the lines and shapes that were added since the last call to the beginFill() method. * * @method endFill */ PIXI.Graphics.prototype.endFill = function() { this.filling = false; this.fillColor = null; this.fillAlpha = 1; }; /** * @method drawRect * * @param x {Number} The X coord of the top-left of the rectangle * @param y {Number} The Y coord of the top-left of the rectangle * @param width {Number} The width of the rectangle * @param height {Number} The height of the rectangle */ PIXI.Graphics.prototype.drawRect = function( x, y, width, height ) { if (!this.currentPath.points.length) this.graphicsData.pop(); this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha, fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling, points:[x, y, width, height], type:PIXI.Graphics.RECT}; this.graphicsData.push(this.currentPath); this.dirty = true; }; /** * Draws a circle. * * @method drawCircle * @param x {Number} The X coord of the center of the circle * @param y {Number} The Y coord of the center of the circle * @param radius {Number} The radius of the circle */ PIXI.Graphics.prototype.drawCircle = function( x, y, radius) { if (!this.currentPath.points.length) this.graphicsData.pop(); this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha, fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling, points:[x, y, radius, radius], type:PIXI.Graphics.CIRC}; this.graphicsData.push(this.currentPath); this.dirty = true; }; /** * Draws an ellipse. * * @method drawEllipse * @param x {Number} * @param y {Number} * @param width {Number} * @param height {Number} */ PIXI.Graphics.prototype.drawEllipse = function( x, y, width, height) { if (!this.currentPath.points.length) this.graphicsData.pop(); this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha, fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling, points:[x, y, width, height], type:PIXI.Graphics.ELIP}; this.graphicsData.push(this.currentPath); this.dirty = true; }; /** * Clears the graphics that were drawn to this Graphics object, and resets fill and line style settings. * * @method clear */ PIXI.Graphics.prototype.clear = function() { this.lineWidth = 0; this.filling = false; this.dirty = true; this.clearDirty = true; this.graphicsData = []; this.bounds = null; //new PIXI.Rectangle(); }; /** * Useful function that returns a texture of the graphics object that can then be used to create sprites * This can be quite useful if your geometry is complicated and needs to be reused multiple times. * * @method generateTexture * @return {Texture} a texture of the graphics object */ PIXI.Graphics.prototype.generateTexture = function() { var bounds = this.getBounds(); var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height); var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas); canvasBuffer.context.translate(-bounds.x,-bounds.y); PIXI.CanvasGraphics.renderGraphics(this, canvasBuffer.context); return texture; }; PIXI.Graphics.prototype._renderWebGL = function(renderSession) { // if the sprite is not visible or the alpha is 0 then no need to render this element if(this.visible === false || this.alpha === 0 || this.isMask === true)return; if(this._cacheAsBitmap) { if(this.dirty) { this._generateCachedSprite(); // we will also need to update the texture on the gpu too! PIXI.updateWebGLTexture(this._cachedSprite.texture.baseTexture, renderSession.gl); this.dirty = false; } PIXI.Sprite.prototype._renderWebGL.call(this._cachedSprite, renderSession); return; } else { renderSession.spriteBatch.stop(); if(this._mask)renderSession.maskManager.pushMask(this.mask, renderSession); if(this._filters)renderSession.filterManager.pushFilter(this._filterBlock); // check blend mode if(this.blendMode !== renderSession.spriteBatch.currentBlendMode) { this.spriteBatch.currentBlendMode = this.blendMode; var blendModeWebGL = PIXI.blendModesWebGL[renderSession.spriteBatch.currentBlendMode]; this.spriteBatch.gl.blendFunc(blendModeWebGL[0], blendModeWebGL[1]); } PIXI.WebGLGraphics.renderGraphics(this, renderSession); if(this._filters)renderSession.filterManager.popFilter(); if(this._mask)renderSession.maskManager.popMask(renderSession); renderSession.drawCount++; renderSession.spriteBatch.start(); } }; PIXI.Graphics.prototype._renderCanvas = function(renderSession) { // if the sprite is not visible or the alpha is 0 then no need to render this element if(this.visible === false || this.alpha === 0 || this.isMask === true)return; var context = renderSession.context; var transform = this.worldTransform; if(this.blendMode !== renderSession.currentBlendMode) { renderSession.currentBlendMode = this.blendMode; context.globalCompositeOperation = PIXI.blendModesCanvas[renderSession.currentBlendMode]; } context.setTransform(transform[0], transform[3], transform[1], transform[4], transform[2], transform[5]); PIXI.CanvasGraphics.renderGraphics(this, context); }; PIXI.Graphics.prototype.getBounds = function() { if(!this.bounds)this.updateBounds(); var w0 = this.bounds.x; var w1 = this.bounds.width + this.bounds.x; var h0 = this.bounds.y; var h1 = this.bounds.height + this.bounds.y; var worldTransform = this.worldTransform; var a = worldTransform[0]; var b = worldTransform[3]; var c = worldTransform[1]; var d = worldTransform[4]; var tx = worldTransform[2]; var ty = worldTransform[5]; var x1 = a * w1 + c * h1 + tx; var y1 = d * h1 + b * w1 + ty; var x2 = a * w0 + c * h1 + tx; var y2 = d * h1 + b * w0 + ty; var x3 = a * w0 + c * h0 + tx; var y3 = d * h0 + b * w0 + ty; var x4 = a * w1 + c * h0 + tx; var y4 = d * h0 + b * w1 + ty; var maxX = -Infinity; var maxY = -Infinity; var minX = Infinity; var minY = Infinity; minX = x1 < minX ? x1 : minX; minX = x2 < minX ? x2 : minX; minX = x3 < minX ? x3 : minX; minX = x4 < minX ? x4 : minX; minY = y1 < minY ? y1 : minY; minY = y2 < minY ? y2 : minY; minY = y3 < minY ? y3 : minY; minY = y4 < minY ? y4 : minY; maxX = x1 > maxX ? x1 : maxX; maxX = x2 > maxX ? x2 : maxX; maxX = x3 > maxX ? x3 : maxX; maxX = x4 > maxX ? x4 : maxX; maxY = y1 > maxY ? y1 : maxY; maxY = y2 > maxY ? y2 : maxY; maxY = y3 > maxY ? y3 : maxY; maxY = y4 > maxY ? y4 : maxY; var bounds = this._bounds; bounds.x = minX; bounds.width = maxX - minX; bounds.y = minY; bounds.height = maxY - minY; return bounds; }; PIXI.Graphics.prototype.updateBounds = function() { var minX = Infinity; var maxX = -Infinity; var minY = Infinity; var maxY = -Infinity; var points, x, y; for (var i = 0; i < this.graphicsData.length; i++) { var data = this.graphicsData[i]; var type = data.type; var lineWidth = data.lineWidth; points = data.points; if(type === PIXI.Graphics.RECT) { x = points.x - lineWidth/2; y = points.y - lineWidth/2; var width = points.width + lineWidth; var height = points.height + lineWidth; minX = x < minX ? x : minX; maxX = x + width > maxX ? x + width : maxX; minY = y < minY ? x : minY; maxY = y + height > maxY ? y + height : maxY; } else if(type === PIXI.Graphics.CIRC || type === PIXI.Graphics.ELIP) { x = points.x; y = points.y; var radius = points.radius + lineWidth/2; minX = x - radius < minX ? x - radius : minX; maxX = x + radius > maxX ? x + radius : maxX; minY = y - radius < minY ? y - radius : minY; maxY = y + radius > maxY ? y + radius : maxY; } else { // POLY for (var j = 0; j < points.length; j+=2) { x = points[j]; y = points[j+1]; minX = x-lineWidth < minX ? x-lineWidth : minX; maxX = x+lineWidth > maxX ? x+lineWidth : maxX; minY = y-lineWidth < minY ? y-lineWidth : minY; maxY = y+lineWidth > maxY ? y+lineWidth : maxY; } } } var padding = this.boundsPadding; this.bounds = new PIXI.Rectangle(minX - padding, minY - padding, (maxX - minX) + padding * 2, (maxY - minY) + padding * 2); }; PIXI.Graphics.prototype._generateCachedSprite = function() { var bounds = this.getBounds(); if(!this._cachedSprite) { var canvasBuffer = new PIXI.CanvasBuffer(bounds.width, bounds.height); var texture = PIXI.Texture.fromCanvas(canvasBuffer.canvas); this._cachedSprite = new PIXI.Sprite(texture); this._cachedSprite.buffer = canvasBuffer; this._cachedSprite.worldTransform = this.worldTransform; } else { this._cachedSprite.buffer.resize(bounds.width, bounds.height); } // leverage the anchor to account for the offest of the element this._cachedSprite.anchor.x = -( bounds.x / bounds.width ); this._cachedSprite.anchor.y = -( bounds.y / bounds.height ); // this._cachedSprite.buffer.context.save(); this._cachedSprite.buffer.context.translate(-bounds.x,-bounds.y); PIXI.CanvasGraphics.renderGraphics(this, this._cachedSprite.buffer.context); // this._cachedSprite.buffer.context.restore(); }; PIXI.Graphics.prototype.destroyCachedSprite = function() { this._cachedSprite.texture.destroy(true); // let the gc collect the unused sprite // TODO could be object pooled! this._cachedSprite = null; }; // SOME TYPES: PIXI.Graphics.POLY = 0; PIXI.Graphics.RECT = 1; PIXI.Graphics.CIRC = 2; PIXI.Graphics.ELIP = 3; |