mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-12-26 15:06:22 +01:00
138 lines
No EOL
4.2 KiB
Text
138 lines
No EOL
4.2 KiB
Text
/// @description Insert description here
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#region params
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domain = noone;
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particlePosBuff = noone;
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particleVelBuff = noone;
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width = 0;
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height = 0;
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particleSize = 0;
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density = 0;
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viscosity = 0;
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friction = 0;
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maxParticles = 0;
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numParticles = 0;
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velocityDamping = 0.9;
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dt = 0.1;
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iteration = 8;
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numPressureIters = 2;
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numParticleIters = 2;
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g = 1;
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gDirection = 270;
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flipRatio = 0.8;
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overRelaxation = 1.5;
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obstracles = [];
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wallCollide = 0b1111;
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wallElasticity = 1;
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skip_incompressible = false;
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particleRadius = 0;
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domain_preview = noone;
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#endregion
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function init(width, height, particleSize, density, maxParticles) { #region domain init
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particlePos = array_create(maxParticles * 2);
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particleVel = array_create(maxParticles * 2);
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particleHist = array_create(maxParticles * 2 * TOTAL_FRAMES);
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particleLife = array_create(maxParticles);
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obstracles = [];
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numParticles = 0;
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if(domain != noone &&
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self.width == width &&
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self.height == height &&
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self.particleSize == particleSize &&
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self.density == density &&
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self.maxParticles == maxParticles) {
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FLIP_resetDomain(domain);
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return;
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}
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self.width = width ;
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self.height = height ;
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self.particleSize = particleSize;
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self.density = density ;
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self.maxParticles = maxParticles;
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particlePosBuff = buffer_create(maxParticles * 2 * 8, buffer_grow, 8);
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particleVelBuff = buffer_create(maxParticles * 2 * 8, buffer_grow, 8);
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particleLifeBuff = buffer_create(maxParticles * 8, buffer_grow, 8);
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aPosBuff = buffer_get_address(particlePosBuff);
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aVelBuff = buffer_get_address(particleVelBuff);
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aLifeBuff = buffer_get_address(particleLifeBuff);
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domain = FLIP_initDomain(width, height, particleSize, density, maxParticles);
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particleRadius = FLIP_getParticleRadius(domain);
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cellX = floor(width / particleSize) + 1;
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cellY = floor(height / particleSize) + 1;
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domain_preview = surface_verify(domain_preview, width, height);
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} #endregion
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function update() { #region
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FLIP_setQuality( domain, iteration, numPressureIters, numParticleIters);
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FLIP_setGravity( domain, g, gDirection);
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FLIP_setViscosity( domain, viscosity);
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FLIP_setFriction( domain, friction);
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FLIP_setFlipRatio( domain, flipRatio);
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FLIP_setVelocityDamping( domain, velocityDamping);
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FLIP_setOverRelaxation( domain, overRelaxation);
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FLIP_setWallCollisions( domain, wallCollide, wallElasticity);
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} #endregion
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function step() { #region
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FLIP_resetDensity(domain);
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if(skip_incompressible) {
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FLIP_setTimeStep(domain, dt);
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repeat(iteration) {
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FLIP_simulate_integrateParticles(domain);
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FLIP_simulate_pushParticlesApart(domain);
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FLIP_simulate_handleParticleCollisions(domain);
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//FLIP_simulate_transferVelocities(domain, 1);
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//FLIP_simulate_updateParticleDensity(domain);
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//FLIP_simulate_solveIncompressibility(domain);
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//FLIP_simulate_transferVelocities(domain, 0);
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}
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} else {
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FLIP_simulate(domain, dt);
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//FLIP_setTimeStep(domain, dt);
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//repeat(iteration) {
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// FLIP_simulate_integrateParticles(domain);
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// FLIP_simulate_pushParticlesApart(domain);
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// FLIP_simulate_handleParticleCollisions(domain);
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// FLIP_simulate_transferVelocities(domain, 1);
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// FLIP_simulate_updateParticleDensity(domain);
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// FLIP_simulate_solveIncompressibility(domain);
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// FLIP_simulate_transferVelocities(domain, 0);
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//}
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}
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FLIP_setParticleBuffer(domain, aPosBuff, aLifeBuff);
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FLIP_setParticleVelocityBuffer(domain, aVelBuff);
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buffer_seek(particlePosBuff, buffer_seek_start, 0);
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buffer_seek(particleVelBuff, buffer_seek_start, 0);
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buffer_seek(particleLifeBuff, buffer_seek_start, 0);
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for(var i = 0; i < maxParticles * 2; i++) {
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particleHist[maxParticles * 2 * CURRENT_FRAME + i] = particlePos[i];
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particlePos[i] = buffer_read(particlePosBuff, buffer_f64);
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particleVel[i] = buffer_read(particleVelBuff, buffer_f64);
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}
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for(var i = 0; i < maxParticles; i++)
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particleLife[i] = buffer_read(particleLifeBuff, buffer_f64);
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domain_preview = surface_verify(domain_preview, width, height);
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} #endregion |