#include "pxl8_glows.h"

#include <stdlib.h>

struct pxl8_glows {
    pxl8_glow_source* data;
    u32 capacity;
    u32 count;
};

pxl8_glows* pxl8_glows_create(u32 capacity) {
    pxl8_glows* glows = calloc(1, sizeof(pxl8_glows));
    if (!glows) return NULL;

    glows->data = calloc(capacity, sizeof(pxl8_glow_source));
    if (!glows->data) {
        free(glows);
        return NULL;
    }

    glows->capacity = capacity;
    glows->count = 0;

    return glows;
}

void pxl8_glows_destroy(pxl8_glows* glows) {
    if (!glows) return;
    free(glows->data);
    free(glows);
}

void pxl8_glows_add(pxl8_glows* glows, i16 x, i16 y, u8 radius, u16 intensity, u8 color, u8 shape) {
    if (!glows || glows->count >= glows->capacity) return;

    pxl8_glow_source* g = &glows->data[glows->count++];
    g->x = x;
    g->y = y;
    g->radius = radius;
    g->intensity = intensity;
    g->color = color;
    g->shape = shape;
    g->depth = 0xFFFF;
    g->height = 0;
}

void pxl8_glows_clear(pxl8_glows* glows) {
    if (!glows) return;
    glows->count = 0;
}

u32 pxl8_glows_count(const pxl8_glows* glows) {
    return glows ? glows->count : 0;
}

void pxl8_glows_render(pxl8_glows* glows, pxl8_gfx* gfx) {
    if (!glows || !gfx || glows->count == 0) return;
    pxl8_gfx_apply_effect(gfx, PXL8_GFX_EFFECT_GLOWS, glows->data, glows->count);
}