particles/CppGPU/include/Helper.hpp

#ifndef PARTICLE_HELPER
#define PARTICLE_HELPER

#include <stdlib.h>
#include <Particle.hpp>
#include <Config.hpp>
#include <ComputeShader.hpp>

float random_float(float min, float max){
    float alpha = (float)(rand()) / (float) (RAND_MAX);
    if (alpha == 1.0f)
        alpha = 0;
    return min + alpha * (max - min);
}

void particle_uniform(Config const &config, ComputeShader &compute_shader){
    
    compute_shader.set_uniform("map_width", config.map_width);
    compute_shader.set_uniform("map_height", config.map_height);

    compute_shader.set_uniform("population", config.population);
    
    compute_shader.set_uniform("sensing_angle", config.sensing_angle);
    compute_shader.set_uniform("sensing_distance", config.sensing_distance);
    compute_shader.set_uniform("steering", config.steering);
    compute_shader.set_uniform("speed", config.speed);
}

void map_update_uniform(Config const &config, ComputeShader &compute_shader){
    compute_shader.set_uniform("map_width", config.map_width);
    compute_shader.set_uniform("map_height", config.map_height);

    compute_shader.set_uniform("increase", config.increase);
    compute_shader.set_uniform("decay", config.decay);
    compute_shader.set_uniform("diffusion", config.diffusion);
}

void map_reset_uniform(Config const &config, ComputeShader &compute_shader){
    compute_shader.set_uniform("map_width", config.map_width);
    compute_shader.set_uniform("map_height", config.map_height);
}

#endif // PARTICLE_HELPER