#include "world.h"

#include <stddef.h>

#include "random.h"

static quadrant_type random_quadrant_type(void) {
    uint8_t roll = random_range(100);

    if (roll < 30) return Q_EMPTY;
    if (roll < 40) return Q_ASTEROID_FIELD;
    if (roll < 50) return Q_STAR_SYSTEM;
    if (roll < 60) return Q_NEBULA;
    if (roll < 70) return Q_BLACK_HOLE;
    if (roll < 80) return Q_WHITE_HOLE;
    if (roll < 85) return Q_PULSAR;
    if (roll < 90) return Q_QUASAR;
    if (roll < 95) return Q_SUPERNOVA;
    if (roll < 99) return Q_ANOMALY;
    return Q_SINGULARITY;
}

void world_generate(world_t *w) {
    if (w == NULL) return;

    for (uint16_t y = 0; y < WORLD_HEIGHT; y++) {
        for (uint16_t x = 0; x < WORLD_WIDTH; x++) {
            quadrant_t *q = &w->quadrants[y][x];
            q->type = random_quadrant_type();
            q->is_old = (random_range(100) < 20);
            q->is_visited = false;
            q->is_discovered = false;
        }
    }
}

const quadrant_t *world_get_quadrant(const world_t *w, uint16_t x, uint16_t y) {
    if (w == NULL) return NULL;
    if (x >= WORLD_WIDTH || y >= WORLD_HEIGHT) return NULL;
    return &w->quadrants[y][x];
}