particles/CppGPU/shaders/map_reset.glsl

#version 430 core

struct cell_t {
    float pheromone;
    float result;
    int population;
};

uniform int map_width;
uniform int map_height;

layout(std430, binding = 2) coherent buffer map_buffer
{
    cell_t map[];
};

layout(local_size_x = 256, local_size_y = 1, local_size_z = 1) in;
void main(){
    uint cell_id = gl_GlobalInvocationID.x;
    if(cell_id >= uint(map_width * map_height)){
        return;
    }
    map[cell_id].pheromone = map[cell_id].result;
    map[cell_id].result = 0;
    map[cell_id].population = 0;
}