Equivalent: float scheduling
| 523 | |
| 524 | // Equivalent: float scheduling |
| 525 | static void zParPTankSnowUpdate(zParPTank* zp, float dt) |
| 526 | { |
| 527 | snow_particle_data* end = snow_particles + zp->num_particles; |
| 528 | F32 fadein_life = 0.9f * snow_life; |
| 529 | F32 fadeout_life = 0.4f * snow_life; |
| 530 | F32 ilife = snow_life; |
| 531 | F32 ifadein = 2550.0f * (1.0f / ilife); |
| 532 | F32 ifadeout = 637.5f * (1.0f / ilife); |
| 533 | snow_pool.reset(); |
| 534 | snow_particle_data* it = snow_particles; |
| 535 | while (it != end) |
| 536 | { |
| 537 | it->life -= dt; |
| 538 | if (it->life <= 0.0f) |
| 539 | { |
| 540 | end--; |
| 541 | *it = *end; |
| 542 | continue; |
| 543 | } |
| 544 | |
| 545 | it->loc += it->vel * dt; |
| 546 | xVec4* _loc = (xVec4*)&it->loc; |
| 547 | F32 par_dist; |
| 548 | snow_pool.next(); |
| 549 | if (!snow_pool.valid()) |
| 550 | { |
| 551 | end = it; |
| 552 | break; |
| 553 | } |
| 554 | |
| 555 | *(U32*)snow_pool.color = 0xFFFFFFFF; |
| 556 | |
| 557 | if (it->life > fadein_life) |
| 558 | { |
| 559 | snow_pool.color->a = ifadein * (snow_life - it->life) + 0.5f; |
| 560 | } |
| 561 | else if (it->life < fadeout_life) |
| 562 | { |
| 563 | snow_pool.color->a = it->life * ifadeout + 0.5f; |
| 564 | } |
| 565 | else |
| 566 | { |
| 567 | snow_pool.color->a = 0xFF; |
| 568 | } |
| 569 | |
| 570 | *snow_pool.pos = it->loc; |
| 571 | snow_pool.size->assign(it->size); |
| 572 | snow_pool.uv[0].assign(it->u, 0.875f); |
| 573 | snow_pool.uv[1].assign(0.125f + snow_pool.uv[0].x, 0.125f + snow_pool.uv[0].y); |
| 574 | |
| 575 | it++; |
| 576 | } |
| 577 | |
| 578 | snow_pool.flush(); |
| 579 | zp->num_particles = end - snow_particles; |
| 580 | } |
| 581 | |
| 582 | void zParPTankSpawnSnow(xVec3* pos, xVec3* vel, U32 count) |