├── LICENSE ├── README.md ├── fireworks v2.0.css ├── fireworks v2.0.html ├── fireworks v2.0.js ├── image └── image.png └── jQuery.js /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2024 codetoanbug 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # FireWork 2 | 3 | Demo: 4 | ![Demo](image/image.png) 5 | -------------------------------------------------------------------------------- /fireworks v2.0.css: -------------------------------------------------------------------------------- 1 | canvas { 2 | display: block; 3 | } 4 | 5 | .block-audio { 6 | display: none; 7 | } -------------------------------------------------------------------------------- /fireworks v2.0.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | FireWorks v2.0 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 | -------------------------------------------------------------------------------- /fireworks v2.0.js: -------------------------------------------------------------------------------- 1 | $(function () { 2 | var canvas = $("#canvas")[0]; 3 | canvas.width = $(window).width(); 4 | canvas.height = $(window).height(); 5 | var ctx = canvas.getContext("2d"); 6 | 7 | // resize 8 | $(window).on("resize", function () { 9 | canvas.width = $(window).width(); 10 | canvas.height = $(window).height(); 11 | ctx.fillStyle = "#000003"; 12 | ctx.fillRect(0, 0, canvas.width, canvas.height); 13 | center = { x: canvas.width / 2, y: canvas.height / 2 }; 14 | }); 15 | 16 | // init 17 | ctx.fillStyle = "#000003"; 18 | ctx.fillRect(0, 0, canvas.width, canvas.height); 19 | // objects 20 | var listFire = []; 21 | var listFirework = []; 22 | var listText = []; 23 | var listSpecial = []; 24 | var listSpark = []; 25 | var lights = []; 26 | var fireNumber = 10; 27 | var center = { x: canvas.width / 2, y: canvas.height / 2 }; 28 | var range = 100; 29 | var fired = 0; 30 | var onHold = 0; 31 | var supprise = false; 32 | var textIndex = 0; 33 | var actions = [ 34 | makeDoubleFullCircleFirework, 35 | makePlanetCircleFirework, 36 | makeFullCircleFirework, 37 | makeDoubleCircleFirework, 38 | makeHeartFirework, 39 | makeCircleFirework, 40 | makeRandomFirework 41 | ]; 42 | for (var i = 0; i < fireNumber; i++) { 43 | var fire = { 44 | x: (Math.random() * range) / 2 - range / 4 + center.x, 45 | y: Math.random() * range * 2.5 + canvas.height, 46 | size: Math.random() + 0.5, 47 | fill: "#ff3", 48 | vx: Math.random() - 0.5, 49 | vy: -(Math.random() + 4), 50 | ax: Math.random() * 0.06 - 0.03, 51 | delay: Math.round(Math.random() * range) + range * 4, 52 | hold: false, 53 | alpha: 1, 54 | far: Math.random() * range + (center.y - range) 55 | }; 56 | fire.base = { 57 | x: fire.x, 58 | y: fire.y, 59 | vx: fire.vx, 60 | vy: fire.vy 61 | }; 62 | // 63 | listFire.push(fire); 64 | // play sound 65 | playLaunchSound(); 66 | } 67 | // define array of sound 68 | var listExpSound = $("audio.exp"); 69 | var listLaunchSound = $("audio.launch"); 70 | 71 | // define array position of text 72 | var textString = "happynewyear2025"; 73 | var textMatrix = [ 74 | 4.5, 75 | 0, 76 | 5.5, 77 | 0, 78 | 6.5, 79 | 0, 80 | 7.5, 81 | 0, 82 | 8.5, 83 | 0, 84 | 0, 85 | 1, 86 | 1, 87 | 1, 88 | 2, 89 | 1, 90 | 3, 91 | 1, 92 | 4, 93 | 1, 94 | 6, 95 | 1, 96 | 7, 97 | 1, 98 | 8, 99 | 1, 100 | 10, 101 | 1, 102 | 11, 103 | 1, 104 | 12, 105 | 1, 106 | 13, 107 | 1, 108 | 5, 109 | 2, 110 | 6, 111 | 2, 112 | 7, 113 | 2, 114 | 8, 115 | 2 116 | ]; 117 | var chars = { 118 | h: [ 119 | 0, 120 | 0, 121 | 0, 122 | 1, 123 | 0, 124 | 2, 125 | 0, 126 | 3, 127 | 0, 128 | 4, 129 | 0, 130 | 5, 131 | 0, 132 | 6, 133 | 0, 134 | 7, 135 | 1, 136 | 3, 137 | 2, 138 | 3, 139 | 3, 140 | 3, 141 | 4, 142 | 3, 143 | 5, 144 | 0, 145 | 5, 146 | 1, 147 | 5, 148 | 2, 149 | 5, 150 | 3, 151 | 5, 152 | 4, 153 | 5, 154 | 5, 155 | 5, 156 | 6, 157 | 5, 158 | 7 159 | ], 160 | a: [ 161 | 2, 162 | 0, 163 | 2, 164 | 1, 165 | 2, 166 | 2, 167 | 1, 168 | 2, 169 | 1, 170 | 3, 171 | 1, 172 | 4, 173 | 1, 174 | 5, 175 | 0, 176 | 5, 177 | 0, 178 | 6, 179 | 0, 180 | 7, 181 | 2, 182 | 5, 183 | 3, 184 | 0, 185 | 3, 186 | 1, 187 | 3, 188 | 2, 189 | 4, 190 | 2, 191 | 4, 192 | 3, 193 | 4, 194 | 4, 195 | 4, 196 | 1, 197 | 5, 198 | 5, 199 | 5, 200 | 6, 201 | 5, 202 | 7, 203 | 3, 204 | 5 205 | ], 206 | p: [ 207 | 0, 208 | 0, 209 | 0, 210 | 1, 211 | 0, 212 | 2, 213 | 0, 214 | 3, 215 | 0, 216 | 4, 217 | 0, 218 | 5, 219 | 0, 220 | 6, 221 | 0, 222 | 7, 223 | 1, 224 | 0, 225 | 2, 226 | 0, 227 | 3, 228 | 0, 229 | 4, 230 | 1, 231 | 5, 232 | 2, 233 | 4, 234 | 3, 235 | 3, 236 | 4, 237 | 2, 238 | 4, 239 | 1, 240 | 4 241 | ], 242 | y: [ 243 | 0, 244 | 0, 245 | 0, 246 | 1, 247 | 1, 248 | 1, 249 | 1, 250 | 2, 251 | 1, 252 | 3, 253 | 2, 254 | 3, 255 | 2, 256 | 4, 257 | 2, 258 | 5, 259 | 2, 260 | 6, 261 | 2, 262 | 7, 263 | 3, 264 | 2, 265 | 3, 266 | 3, 267 | 4, 268 | 1, 269 | 4, 270 | 2, 271 | 5, 272 | 0, 273 | 5, 274 | 1 275 | ], 276 | l: [ 277 | 0, 278 | 0, 279 | 0, 280 | 1, 281 | 0, 282 | 2, 283 | 0, 284 | 3, 285 | 0, 286 | 4, 287 | 0, 288 | 5, 289 | 0, 290 | 6, 291 | 0, 292 | 7, 293 | 1, 294 | 7, 295 | 2, 296 | 7, 297 | 3, 298 | 7, 299 | 4, 300 | 7, 301 | 5, 302 | 7 303 | ], 304 | u: [ 305 | 0, 306 | 0, 307 | 0, 308 | 1, 309 | 0, 310 | 2, 311 | 0, 312 | 3, 313 | 0, 314 | 4, 315 | 0, 316 | 5, 317 | 0, 318 | 6, 319 | 1, 320 | 7, 321 | 2, 322 | 7, 323 | 3, 324 | 7, 325 | 4, 326 | 7, 327 | 5, 328 | 0, 329 | 5, 330 | 1, 331 | 5, 332 | 2, 333 | 5, 334 | 3, 335 | 5, 336 | 4, 337 | 5, 338 | 5, 339 | 5, 340 | 6 341 | ], 342 | n: [ 343 | 0, 344 | 0, 345 | 0, 346 | 1, 347 | 0, 348 | 2, 349 | 0, 350 | 3, 351 | 0, 352 | 4, 353 | 0, 354 | 5, 355 | 0, 356 | 6, 357 | 0, 358 | 7, 359 | 1, 360 | 1, 361 | 1, 362 | 2, 363 | 2, 364 | 2, 365 | 2, 366 | 3, 367 | 2, 368 | 4, 369 | 3, 370 | 4, 371 | 3, 372 | 5, 373 | 4, 374 | 5, 375 | 4, 376 | 6, 377 | 5, 378 | 0, 379 | 5, 380 | 1, 381 | 5, 382 | 2, 383 | 5, 384 | 3, 385 | 5, 386 | 4, 387 | 5, 388 | 5, 389 | 5, 390 | 6, 391 | 5, 392 | 7 393 | ], 394 | e: [ 395 | 0, 396 | 0, 397 | 0, 398 | 1, 399 | 0, 400 | 2, 401 | 0, 402 | 3, 403 | 0, 404 | 4, 405 | 0, 406 | 5, 407 | 0, 408 | 6, 409 | 0, 410 | 7, 411 | 1, 412 | 0, 413 | 2, 414 | 0, 415 | 3, 416 | 0, 417 | 4, 418 | 0, 419 | 5, 420 | 0, 421 | 1, 422 | 3, 423 | 2, 424 | 3, 425 | 3, 426 | 3, 427 | 4, 428 | 3, 429 | 1, 430 | 7, 431 | 2, 432 | 7, 433 | 3, 434 | 7, 435 | 4, 436 | 7, 437 | 5, 438 | 7 439 | ], 440 | w: [ 441 | 0, 442 | 0, 443 | 0, 444 | 1, 445 | 0, 446 | 2, 447 | 0, 448 | 3, 449 | 0, 450 | 4, 451 | 0, 452 | 5, 453 | 1, 454 | 6, 455 | 2, 456 | 1, 457 | 2, 458 | 2, 459 | 2, 460 | 3, 461 | 2, 462 | 4, 463 | 2, 464 | 5, 465 | 2, 466 | 6, 467 | 2, 468 | 7, 469 | 3, 470 | 7, 471 | 5, 472 | 0, 473 | 5, 474 | 1, 475 | 5, 476 | 2, 477 | 5, 478 | 3, 479 | 5, 480 | 4, 481 | 5, 482 | 5, 483 | 4, 484 | 5, 485 | 4, 486 | 6 487 | ], 488 | r: [ 489 | 0, 490 | 0, 491 | 0, 492 | 1, 493 | 0, 494 | 2, 495 | 0, 496 | 3, 497 | 0, 498 | 4, 499 | 0, 500 | 5, 501 | 0, 502 | 6, 503 | 0, 504 | 7, 505 | 1, 506 | 0, 507 | 2, 508 | 0, 509 | 3, 510 | 0, 511 | 4, 512 | 1, 513 | 5, 514 | 2, 515 | 4, 516 | 3, 517 | 3, 518 | 4, 519 | 2, 520 | 4, 521 | 1, 522 | 4, 523 | 1, 524 | 5, 525 | 2, 526 | 5, 527 | 3, 528 | 6, 529 | 4, 530 | 6, 531 | 5, 532 | 7 533 | ], 534 | 2: [ 535 | 0, 536 | 1, 537 | 0, 538 | 0, 539 | 1, 540 | 0, 541 | 2, 542 | 0, 543 | 3, 544 | 0, 545 | 4, 546 | 0, 547 | 5, 548 | 0, 549 | 5, 550 | 1, 551 | 5, 552 | 2, 553 | 5, 554 | 3, 555 | 4, 556 | 3, 557 | 3, 558 | 3, 559 | 2, 560 | 3, 561 | 2, 562 | 4, 563 | 1, 564 | 4, 565 | 1, 566 | 5, 567 | 0, 568 | 5, 569 | 0, 570 | 6, 571 | 0, 572 | 7, 573 | 1, 574 | 7, 575 | 2, 576 | 7, 577 | 3, 578 | 7, 579 | 4, 580 | 7, 581 | 5, 582 | 7, 583 | 5, 584 | 6 585 | ], 586 | 0: [ 587 | 0, 588 | 1, 589 | 0, 590 | 2, 591 | 0, 592 | 3, 593 | 0, 594 | 4, 595 | 0, 596 | 5, 597 | 0, 598 | 6, 599 | 1, 600 | 0, 601 | 2, 602 | 0, 603 | 3, 604 | 0, 605 | 4, 606 | 0, 607 | 1, 608 | 7, 609 | 2, 610 | 7, 611 | 3, 612 | 7, 613 | 4, 614 | 7, 615 | 5, 616 | 1, 617 | 5, 618 | 2, 619 | 5, 620 | 3, 621 | 5, 622 | 4, 623 | 5, 624 | 5, 625 | 5, 626 | 6 627 | ], 628 | 1: [ 629 | 1, 630 | 2, 631 | 2, 632 | 2, 633 | 2, 634 | 1, 635 | 3, 636 | 1, 637 | 3, 638 | 0, 639 | 4, 640 | 0, 641 | 4, 642 | 1, 643 | 4, 644 | 2, 645 | 4, 646 | 3, 647 | 4, 648 | 4, 649 | 4, 650 | 5, 651 | 4, 652 | 6, 653 | 4, 654 | 7, 655 | 1, 656 | 7, 657 | 2, 658 | 7, 659 | 3, 660 | 7, 661 | 5, 662 | 7 663 | ], 664 | 7: [ 665 | 0, 666 | 0, 667 | 1, 668 | 0, 669 | 2, 670 | 0, 671 | 3, 672 | 0, 673 | 4, 674 | 0, 675 | 5, 676 | 0, 677 | 5, 678 | 1, 679 | 5, 680 | 2, 681 | 5, 682 | 3, 683 | 4, 684 | 3, 685 | 4, 686 | 4, 687 | 3, 688 | 4, 689 | 3, 690 | 5, 691 | 3, 692 | 6, 693 | 3, 694 | 7 695 | ] 696 | }; 697 | 698 | function initText() { 699 | var i = textIndex; 700 | var velocity = Math.random() * 0.25 + 1; 701 | var shift = { x: -(Math.random() + 2), y: -(Math.random() + 3) }; 702 | var char = chars[textString[i]]; 703 | var width = 80; 704 | var half = 6.5 * width; 705 | var left = textMatrix[i * 2] * width - half; 706 | var top = textMatrix[i * 2 + 1] * range * 1.2 - range * 2.4; 707 | for (var j = 0; j < fireNumber * char.length * 0.25; j++) { 708 | var rand = Math.floor(Math.random() * char.length * 0.5); 709 | var x = char[rand * 2] + shift.x; 710 | var y = char[rand * 2 + 1] + shift.y; 711 | var text = { 712 | x: center.x + left * 0.9, 713 | y: center.y + top, 714 | left: center.x + left, 715 | size: Math.random() + 0.5, 716 | fill: "#ff3", 717 | vx: x * (velocity + (Math.random() - 0.5) * 0.5), 718 | vy: y * (velocity + (Math.random() - 0.5) * 0.5), 719 | ay: 0.08, 720 | alpha: 1, 721 | life: Math.round((Math.random() * range) / 2) + range / 1.5 722 | }; 723 | text.base = { 724 | life: text.life, 725 | size: text.size 726 | }; 727 | text.direct = (text.left - text.x) * 0.08; 728 | listText.push(text); 729 | } 730 | // play sound 731 | playExpSound(); 732 | // 733 | lights.push({ 734 | x: center.x + left * 0.9, 735 | y: center.y + top, 736 | color: text.fill, 737 | radius: range * 2 738 | }); 739 | if (++textIndex < textString.length) { 740 | setTimeout(initText, 10); 741 | } else { 742 | textIndex = 0; 743 | } 744 | } 745 | 746 | function initSpark() { 747 | var x = Math.random() * range * 3 - range * 1.5 + center.x; 748 | var vx = Math.random() - 0.5; 749 | var vy = -(Math.random() + 4); 750 | var ax = Math.random() * 0.04 - 0.02; 751 | var far = Math.random() * range * 4 - range + center.y; 752 | var direct = ax * 10 * Math.PI; 753 | var max = fireNumber * 0.5; 754 | for (var i = 0; i < max; i++) { 755 | var special = { 756 | x: x, 757 | y: Math.random() * range * 0.25 + canvas.height, 758 | size: Math.random() + 2, 759 | fill: "#ff3", 760 | vx: vx, 761 | vy: vy, 762 | ax: ax, 763 | direct: direct, 764 | alpha: 1 765 | }; 766 | special.far = far - (special.y - canvas.height); 767 | listSpecial.push(special); 768 | // play sound 769 | playLaunchSound(); 770 | } 771 | } 772 | 773 | function randColor() { 774 | var r = Math.floor(Math.random() * 256); 775 | var g = Math.floor(Math.random() * 256); 776 | var b = Math.floor(Math.random() * 256); 777 | var color = "rgb($r, $g, $b)"; 778 | color = color.replace("$r", r); 779 | color = color.replace("$g", g); 780 | color = color.replace("$b", b); 781 | return color; 782 | } 783 | 784 | function playExpSound() { 785 | var sound = listExpSound[Math.floor(Math.random() * listExpSound.length)]; 786 | sound.volume = Math.random() * 0.4 + 0.1; 787 | sound.play(); 788 | } 789 | 790 | function playLaunchSound() { 791 | setTimeout(function () { 792 | var sound = 793 | listLaunchSound[Math.floor(Math.random() * listLaunchSound.length)]; 794 | sound.volume = 0.05; 795 | sound.play(); 796 | }, 200); 797 | } 798 | 799 | function makeCircleFirework(fire) { 800 | var color = randColor(); 801 | var velocity = Math.random() * 2 + 6; 802 | var max = fireNumber * 5; 803 | for (var i = 0; i < max; i++) { 804 | var rad = (i * Math.PI * 2) / max; 805 | var firework = { 806 | x: fire.x, 807 | y: fire.y, 808 | size: Math.random() + 1.5, 809 | fill: color, 810 | vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5, 811 | vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5, 812 | ay: 0.04, 813 | alpha: 1, 814 | life: Math.round((Math.random() * range) / 2) + range / 2 815 | }; 816 | firework.base = { 817 | life: firework.life, 818 | size: firework.size 819 | }; 820 | listFirework.push(firework); 821 | } 822 | return color; 823 | } 824 | 825 | function makeDoubleCircleFirework(fire) { 826 | var color = randColor(); 827 | var velocity = Math.random() * 2 + 8; 828 | var max = fireNumber * 3; 829 | for (var i = 0; i < max; i++) { 830 | var rad = (i * Math.PI * 2) / max; 831 | var firework = { 832 | x: fire.x, 833 | y: fire.y, 834 | size: Math.random() + 1.5, 835 | fill: color, 836 | vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5, 837 | vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5, 838 | ay: 0.04, 839 | alpha: 1, 840 | life: Math.round((Math.random() * range) / 2) + range / 1.5 841 | }; 842 | firework.base = { 843 | life: firework.life, 844 | size: firework.size 845 | }; 846 | listFirework.push(firework); 847 | } 848 | color = randColor(); 849 | velocity = Math.random() * 3 + 4; 850 | for (var i = 0; i < max; i++) { 851 | var rad = (i * Math.PI * 2) / max; 852 | var firework = { 853 | x: fire.x, 854 | y: fire.y, 855 | size: Math.random() + 1.5, 856 | fill: color, 857 | vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5, 858 | vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5, 859 | ay: 0.04, 860 | alpha: 1, 861 | life: Math.round((Math.random() * range) / 2) + range / 1.5 862 | }; 863 | firework.base = { 864 | life: firework.life, 865 | size: firework.size 866 | }; 867 | listFirework.push(firework); 868 | } 869 | return color; 870 | } 871 | 872 | function makePlanetCircleFirework(fire) { 873 | var color = "#aa0609"; 874 | var velocity = Math.random() * 2 + 4; 875 | var max = fireNumber * 2; 876 | for (var i = 0; i < max; i++) { 877 | var rad = (i * Math.PI * 2) / max; 878 | var firework = { 879 | x: fire.x, 880 | y: fire.y, 881 | size: Math.random() + 1.5, 882 | fill: color, 883 | vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5, 884 | vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5, 885 | ay: 0.04, 886 | alpha: 1, 887 | life: Math.round((Math.random() * range) / 2) + range / 1.5 888 | }; 889 | firework.base = { 890 | life: firework.life, 891 | size: firework.size 892 | }; 893 | listFirework.push(firework); 894 | } 895 | max = fireNumber * 4; 896 | for (var i = 0; i < max; i++) { 897 | var rad = (i * Math.PI * 2) / max; 898 | var firework = { 899 | x: fire.x, 900 | y: fire.y, 901 | size: Math.random() + 1.5, 902 | fill: color, 903 | vx: Math.cos(rad) * velocity * Math.random(), 904 | vy: Math.sin(rad) * velocity * Math.random(), 905 | ay: 0.04, 906 | alpha: 1, 907 | life: Math.round((Math.random() * range) / 2) + range / 1.5 908 | }; 909 | firework.base = { 910 | life: firework.life, 911 | size: firework.size 912 | }; 913 | listFirework.push(firework); 914 | } 915 | max = fireNumber * 3; 916 | color = "#ff9"; 917 | var rotate = Math.random() * Math.PI * 2; 918 | var vx = velocity * (Math.random() + 2); 919 | var vy = velocity * 0.6; 920 | for (var i = 0; i < max; i++) { 921 | var rad = (i * Math.PI * 2) / max; 922 | // calc x, y for ellipse 923 | var cx = Math.cos(rad) * vx + (Math.random() - 0.5) * 0.5; 924 | var cy = Math.sin(rad) * vy + (Math.random() - 0.5) * 0.5; 925 | var firework = { 926 | x: fire.x, 927 | y: fire.y, 928 | size: Math.random() + 1.5, 929 | fill: color, 930 | vx: cx * Math.cos(rotate) - cy * Math.sin(rotate), // rotate x ellipse 931 | vy: cx * Math.sin(rotate) + cy * Math.cos(rotate), // rotate y ellipse 932 | ay: 0.02, 933 | alpha: 1, 934 | life: Math.round((Math.random() * range) / 2) + range / 1.5 935 | }; 936 | firework.base = { 937 | life: firework.life, 938 | size: firework.size 939 | }; 940 | listFirework.push(firework); 941 | } 942 | return "#aa0609"; 943 | } 944 | 945 | function makeFullCircleFirework(fire) { 946 | var color = randColor(); 947 | var velocity = Math.random() * 8 + 8; 948 | var max = fireNumber * 3; 949 | for (var i = 0; i < max; i++) { 950 | var rad = (i * Math.PI * 2) / max; 951 | var firework = { 952 | x: fire.x, 953 | y: fire.y, 954 | size: Math.random() + 1.5, 955 | fill: color, 956 | vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5, 957 | vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5, 958 | ay: 0.06, 959 | alpha: 1, 960 | life: Math.round((Math.random() * range) / 2) + range / 1.5 961 | }; 962 | firework.base = { 963 | life: firework.life, 964 | size: firework.size 965 | }; 966 | listFirework.push(firework); 967 | } 968 | max = fireNumber * Math.round(Math.random() * 4 + 4); 969 | for (var i = 0; i < max; i++) { 970 | var rad = (i * Math.PI * 2) / max; 971 | var firework = { 972 | x: fire.x, 973 | y: fire.y, 974 | size: Math.random() + 1.5, 975 | fill: color, 976 | vx: Math.cos(rad) * velocity * Math.random(), 977 | vy: Math.sin(rad) * velocity * Math.random(), 978 | ay: 0.06, 979 | alpha: 1, 980 | life: Math.round((Math.random() * range) / 2) + range / 1.5 981 | }; 982 | firework.base = { 983 | life: firework.life, 984 | size: firework.size 985 | }; 986 | listFirework.push(firework); 987 | } 988 | return color; 989 | } 990 | 991 | function makeDoubleFullCircleFirework(fire) { 992 | var color = randColor(); 993 | var velocity = Math.random() * 8 + 8; 994 | var max = fireNumber * 3; 995 | for (var i = 0; i < max; i++) { 996 | var rad = (i * Math.PI * 2) / max; 997 | var firework = { 998 | x: fire.x, 999 | y: fire.y, 1000 | size: Math.random() + 1.5, 1001 | fill: color, 1002 | vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5, 1003 | vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5, 1004 | ay: 0.04, 1005 | alpha: 1, 1006 | life: Math.round((Math.random() * range) / 2) + range / 1.5 1007 | }; 1008 | firework.base = { 1009 | life: firework.life, 1010 | size: firework.size 1011 | }; 1012 | listFirework.push(firework); 1013 | } 1014 | color = randColor(); 1015 | velocity = Math.random() * 3 + 4; 1016 | max = fireNumber * 2; 1017 | for (var i = 0; i < max; i++) { 1018 | var rad = (i * Math.PI * 2) / max; 1019 | var firework = { 1020 | x: fire.x, 1021 | y: fire.y, 1022 | size: Math.random() + 1.5, 1023 | fill: color, 1024 | vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5, 1025 | vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5, 1026 | ay: 0.06, 1027 | alpha: 1, 1028 | life: Math.round((Math.random() * range) / 2) + range / 1.5 1029 | }; 1030 | firework.base = { 1031 | life: firework.life, 1032 | size: firework.size 1033 | }; 1034 | listFirework.push(firework); 1035 | } 1036 | max = fireNumber * 4; 1037 | for (var i = 0; i < max; i++) { 1038 | var rad = (i * Math.PI * 2) / max; 1039 | var firework = { 1040 | x: fire.x, 1041 | y: fire.y, 1042 | size: Math.random() + 1.5, 1043 | fill: color, 1044 | vx: Math.cos(rad) * velocity * Math.random(), 1045 | vy: Math.sin(rad) * velocity * Math.random(), 1046 | ay: 0.06, 1047 | alpha: 1, 1048 | life: Math.round((Math.random() * range) / 2) + range / 1.5 1049 | }; 1050 | firework.base = { 1051 | life: firework.life, 1052 | size: firework.size 1053 | }; 1054 | listFirework.push(firework); 1055 | } 1056 | return color; 1057 | } 1058 | 1059 | function makeHeartFirework(fire) { 1060 | var color = randColor(); 1061 | var velocity = Math.random() * 3 + 3; 1062 | var max = fireNumber * 5; 1063 | var rotate = Math.random() * Math.PI * 2; 1064 | for (var i = 0; i < max; i++) { 1065 | var rad = (i * Math.PI * 2) / max + rotate; 1066 | var v, p; 1067 | if (rad - rotate < Math.PI * 0.5) { 1068 | p = (rad - rotate) / (Math.PI * 0.5); 1069 | v = velocity + velocity * p; 1070 | } else if (rad - rotate > Math.PI * 0.5 && rad - rotate < Math.PI) { 1071 | p = (rad - rotate - Math.PI * 0.5) / (Math.PI * 0.5); 1072 | v = velocity * (2 - p); 1073 | } else if (rad - rotate > Math.PI && rad - rotate < Math.PI * 1.5) { 1074 | p = (rad - rotate - Math.PI) / (Math.PI * 0.5); 1075 | v = velocity * (1 - p); 1076 | } else if (rad - rotate > Math.PI * 1.5 && rad - rotate < Math.PI * 2) { 1077 | p = (rad - rotate - Math.PI * 1.5) / (Math.PI * 0.5); 1078 | v = velocity * p; 1079 | } else { 1080 | v = velocity; 1081 | } 1082 | v = v + (Math.random() - 0.5) * 0.25; 1083 | var firework = { 1084 | x: fire.x, 1085 | y: fire.y, 1086 | size: Math.random() + 1.5, 1087 | fill: color, 1088 | vx: Math.cos(rad) * v, 1089 | vy: Math.sin(rad) * v, 1090 | ay: 0.02, 1091 | alpha: 1, 1092 | life: Math.round((Math.random() * range) / 2) + range / 1.5 1093 | }; 1094 | firework.base = { 1095 | life: firework.life, 1096 | size: firework.size 1097 | }; 1098 | listFirework.push(firework); 1099 | } 1100 | return color; 1101 | } 1102 | 1103 | function makeRandomFirework(fire) { 1104 | var color = randColor(); 1105 | for (var i = 0; i < fireNumber * 5; i++) { 1106 | var firework = { 1107 | x: fire.x, 1108 | y: fire.y, 1109 | size: Math.random() + 1.5, 1110 | fill: color, 1111 | vx: Math.random() * 15 - 7.5, 1112 | vy: Math.random() * -15 + 5, 1113 | ay: 0.05, 1114 | alpha: 1, 1115 | life: Math.round((Math.random() * range) / 2) + range / 2 1116 | }; 1117 | firework.base = { 1118 | life: firework.life, 1119 | size: firework.size 1120 | }; 1121 | listFirework.push(firework); 1122 | } 1123 | return color; 1124 | } 1125 | 1126 | function makeSpark(special) { 1127 | var color = special.fill; 1128 | var velocity = Math.random() * 6 + 12; 1129 | var max = fireNumber; 1130 | for (var i = 0; i < max; i++) { 1131 | var rad = 1132 | Math.random() * Math.PI * 0.3 + Math.PI * 0.35 + Math.PI + special.direct; 1133 | var spark = { 1134 | x: special.x, 1135 | y: special.y, 1136 | size: Math.random() + 1, 1137 | fill: color, 1138 | vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5, 1139 | vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5, 1140 | ay: 0.02, 1141 | alpha: 1, 1142 | rad: rad, 1143 | direct: special.direct, 1144 | chain: Math.round(Math.random() * 2) + 2, 1145 | life: Math.round((Math.random() * range) / 2) + range / 2 1146 | }; 1147 | spark.base = { 1148 | life: spark.life, 1149 | velocity: velocity 1150 | }; 1151 | listSpark.push(spark); 1152 | } 1153 | return color; 1154 | } 1155 | 1156 | function chainSpark(parentSpark) { 1157 | var color = parentSpark.fill; 1158 | if (parentSpark.chain > 0) { 1159 | var velocity = parentSpark.base.velocity * 0.6; 1160 | var max = Math.round(Math.random() * 5); 1161 | for (var i = 0; i < max; i++) { 1162 | var rad = 1163 | Math.random() * Math.PI * 0.3 - 1164 | Math.PI * 0.15 + 1165 | parentSpark.rad + 1166 | parentSpark.direct; 1167 | var spark = { 1168 | x: parentSpark.x, 1169 | y: parentSpark.y, 1170 | size: parentSpark.size * 0.6, 1171 | fill: color, 1172 | vx: Math.cos(rad) * velocity + (Math.random() - 0.5) * 0.5, 1173 | vy: Math.sin(rad) * velocity + (Math.random() - 0.5) * 0.5, 1174 | ay: 0.02, 1175 | alpha: 1, 1176 | rad: rad, 1177 | direct: parentSpark.direct, 1178 | chain: parentSpark.chain, 1179 | life: parentSpark.base.life * 0.8 1180 | }; 1181 | spark.base = { 1182 | life: spark.life, 1183 | size: spark.size, 1184 | velocity: velocity 1185 | }; 1186 | listSpark.push(spark); 1187 | } 1188 | 1189 | if (Math.random() > 0.9 && parentSpark.chain > 1) { 1190 | // play sound 1191 | playExpSound(); 1192 | } 1193 | } 1194 | return color; 1195 | } 1196 | 1197 | (function loop() { 1198 | requestAnimationFrame(loop); 1199 | update(); 1200 | draw(); 1201 | })(); 1202 | 1203 | function update() { 1204 | // update fire logic 1205 | for (var i = 0; i < listFire.length; i++) { 1206 | var fire = listFire[i]; 1207 | // 1208 | if (fire.y <= fire.far) { 1209 | // play sound 1210 | playExpSound(); 1211 | // case add firework 1212 | fired++; 1213 | var color = actions[Math.floor(Math.random() * actions.length)](fire); 1214 | // light 1215 | lights.push({ x: fire.x, y: fire.y, color: color, radius: range * 2 }); 1216 | // reset 1217 | fire.y = fire.base.y; 1218 | fire.x = fire.base.x; 1219 | // special 1220 | if (fired % 33 == 0) { 1221 | initSpark(); 1222 | } 1223 | // on hold 1224 | supprise = fired % 100 == 0 ? true : supprise; 1225 | if (supprise) { 1226 | fire.vx = 0; 1227 | fire.vy = 0; 1228 | fire.ax = 0; 1229 | fire.hold = true; 1230 | onHold++; 1231 | } else { 1232 | fire.vx = fire.base.vx; 1233 | fire.vy = fire.base.vy; 1234 | fire.ax = Math.random() * 0.06 - 0.03; 1235 | // play sound 1236 | playLaunchSound(); 1237 | } 1238 | } 1239 | // 1240 | if (fire.hold && fire.delay <= 0) { 1241 | onHold--; 1242 | fire.hold = false; 1243 | fire.delay = Math.round(Math.random() * range) + range * 4; 1244 | fire.vx = fire.base.vx; 1245 | fire.vy = fire.base.vy; 1246 | fire.ax = Math.random() * 0.06 - 0.03; 1247 | fire.alpha = 1; 1248 | // play sound 1249 | playLaunchSound(); 1250 | } else if (fire.hold && fire.delay > 0) { 1251 | fire.delay--; 1252 | } else { 1253 | fire.x += fire.vx; 1254 | fire.y += fire.vy; 1255 | fire.vx += fire.ax; 1256 | fire.alpha = (fire.y - fire.far) / fire.far; 1257 | } 1258 | } 1259 | 1260 | // update firework logic 1261 | for (var i = listFirework.length - 1; i >= 0; i--) { 1262 | var firework = listFirework[i]; 1263 | if (firework) { 1264 | firework.vx *= 0.9; 1265 | firework.vy *= 0.9; 1266 | firework.x += firework.vx; 1267 | firework.y += firework.vy; 1268 | firework.vy += firework.ay; 1269 | firework.alpha = firework.life / firework.base.life; 1270 | firework.size = firework.alpha * firework.base.size; 1271 | firework.alpha = firework.alpha > 0.6 ? 1 : firework.alpha; 1272 | // 1273 | firework.life--; 1274 | if (firework.life <= 0) { 1275 | listFirework.splice(i, 1); 1276 | } 1277 | } 1278 | } 1279 | 1280 | // supprise happy new year! 1281 | if (supprise && onHold == 10) { 1282 | supprise = false; 1283 | setTimeout(initText, 3000); 1284 | } 1285 | 1286 | // update text logic 1287 | for (var i = listText.length - 1; i >= 0; i--) { 1288 | var text = listText[i]; 1289 | text.vx *= 0.9; 1290 | text.vy *= 0.9; 1291 | text.direct *= 0.9; 1292 | text.x += text.vx + text.direct; 1293 | text.y += text.vy; 1294 | text.vy += text.ay; 1295 | text.alpha = text.life / text.base.life; 1296 | text.size = text.alpha * text.base.size; 1297 | text.alpha = text.alpha > 0.6 ? 1 : text.alpha; 1298 | // 1299 | text.life--; 1300 | if (text.life <= 0) { 1301 | listText.splice(i, 1); 1302 | } 1303 | } 1304 | 1305 | // update special logic 1306 | for (var i = listSpecial.length - 1; i >= 0; i--) { 1307 | var special = listSpecial[i]; 1308 | if (special.y <= special.far) { 1309 | // play sound 1310 | playExpSound(); 1311 | // light 1312 | lights.push({ 1313 | x: special.x, 1314 | y: special.y, 1315 | color: special.fill, 1316 | alpha: 0.02, 1317 | radius: range * 2 1318 | }); 1319 | // 1320 | makeSpark(special); 1321 | // remove from list 1322 | listSpecial.splice(i, 1); 1323 | } else { 1324 | special.x += special.vx; 1325 | special.y += special.vy; 1326 | special.vx += special.ax; 1327 | special.alpha = (special.y - special.far) / special.far; 1328 | } 1329 | } 1330 | 1331 | // update spark logic 1332 | for (var i = listSpark.length - 1; i >= 0; i--) { 1333 | var spark = listSpark[i]; 1334 | if (spark) { 1335 | spark.vx *= 0.9; 1336 | spark.vy *= 0.9; 1337 | spark.x += spark.vx; 1338 | spark.y += spark.vy; 1339 | spark.vy += spark.ay; 1340 | spark.alpha = spark.life / spark.base.life + 0.2; 1341 | // 1342 | spark.life--; 1343 | if (spark.life < spark.base.life * 0.8 && spark.life > 0) { 1344 | // 1345 | spark.chain--; 1346 | chainSpark(spark); 1347 | } 1348 | if (spark.life <= 0) { 1349 | listSpark.splice(i, 1); 1350 | } 1351 | } 1352 | } 1353 | } 1354 | 1355 | function draw() { 1356 | // clear 1357 | ctx.globalCompositeOperation = "source-over"; 1358 | ctx.globalAlpha = 0.2; 1359 | ctx.fillStyle = "#000003"; 1360 | ctx.fillRect(0, 0, canvas.width, canvas.height); 1361 | 1362 | // re-draw 1363 | ctx.globalCompositeOperation = "screen"; 1364 | for (var i = 0; i < listFire.length; i++) { 1365 | var fire = listFire[i]; 1366 | ctx.globalAlpha = fire.alpha; 1367 | ctx.beginPath(); 1368 | ctx.arc(fire.x, fire.y, fire.size, 0, Math.PI * 2); 1369 | ctx.closePath(); 1370 | ctx.fillStyle = fire.fill; 1371 | ctx.fill(); 1372 | } 1373 | 1374 | for (var i = 0; i < listFirework.length; i++) { 1375 | var firework = listFirework[i]; 1376 | ctx.globalAlpha = firework.alpha; 1377 | ctx.beginPath(); 1378 | ctx.arc(firework.x, firework.y, firework.size, 0, Math.PI * 2); 1379 | ctx.closePath(); 1380 | ctx.fillStyle = firework.fill; 1381 | ctx.fill(); 1382 | } 1383 | 1384 | for (var i = 0; i < listSpecial.length; i++) { 1385 | var special = listSpecial[i]; 1386 | ctx.globalAlpha = special.alpha; 1387 | // ctx.beginPath(); 1388 | // ctx.arc(special.x, special.y, special.size, 0, Math.PI * 2); 1389 | // ctx.closePath(); 1390 | // ctx.fill(); 1391 | ctx.fillStyle = special.fill; 1392 | ctx.fillRect( 1393 | special.x - special.size, 1394 | special.y - special.size, 1395 | special.size * 2, 1396 | special.size * 2 1397 | ); 1398 | } 1399 | 1400 | for (var i = 0; i < listSpark.length; i++) { 1401 | var spark = listSpark[i]; 1402 | ctx.globalAlpha = spark.alpha; 1403 | // ctx.beginPath(); 1404 | // ctx.arc(spark.x, spark.y, spark.size, 0, Math.PI * 2); 1405 | // ctx.closePath(); 1406 | // ctx.fill(); 1407 | ctx.fillStyle = spark.fill; 1408 | ctx.fillRect( 1409 | spark.x - spark.size, 1410 | spark.y - spark.size, 1411 | spark.size * 2, 1412 | spark.size * 2 1413 | ); 1414 | } 1415 | 1416 | // light effect 1417 | while (lights.length) { 1418 | var light = lights.pop(); 1419 | var gradient = ctx.createRadialGradient( 1420 | light.x, 1421 | light.y, 1422 | 0, 1423 | light.x, 1424 | light.y, 1425 | light.radius 1426 | ); 1427 | gradient.addColorStop(0, "#fff"); 1428 | gradient.addColorStop(0.2, light.color); 1429 | gradient.addColorStop(0.8, "rgba(0, 0, 0, 0)"); 1430 | gradient.addColorStop(1, "rgba(0, 0, 0, 0)"); 1431 | ctx.globalAlpha = light.alpha ? light.alpha : 0.25; 1432 | ctx.fillStyle = gradient; 1433 | ctx.fillRect( 1434 | light.x - light.radius, 1435 | light.y - light.radius, 1436 | light.radius * 2, 1437 | light.radius * 2 1438 | ); 1439 | } 1440 | 1441 | // supprise: HAPPY LUNAR NEW YEAR 2017! 1442 | for (var i = 0; i < listText.length; i++) { 1443 | var text = listText[i]; 1444 | ctx.globalAlpha = text.alpha; 1445 | ctx.fillStyle = text.fill; 1446 | ctx.fillRect( 1447 | text.x - text.size, 1448 | text.y - text.size, 1449 | text.size * 2, 1450 | text.size * 2 1451 | ); 1452 | } 1453 | } 1454 | }); 1455 | -------------------------------------------------------------------------------- /image/image.png: 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