#include "../generator.h"
#include "../level.h"

#define N PLATFORM_COUNT

gen1::gen1(): m_path_carver{0}
{
    m_last_z = 0;
    srand(0xc0ffee);
}

void gen1::generate(struct level *level)
{
    struct platform p1;
    struct platform p2;
    static const int freq[] = {
        1,
        2, 2, 2, 2,
        3, 3, 3, 3, 3, 3,
        4,
        5, 5, 5,
    };

    m_path_carver.next(
        (rand() % 2) ? PLATFORM_LEN_LONG : PLATFORM_LEN_SHORT,
        &p1,
        true
    );

    p2 = p1;

    switch (freq[rand() % (sizeof(freq) / sizeof(freq[0]))])
    {
        /* full circle */
    case 1:
        for (int i = 0 ; i < 10 ; i++) {
            p2.face = i;
            p2.length = (rand() % 2) ? PLATFORM_LEN_LONG : PLATFORM_LEN_SHORT;
            level->platform_buffer.push_back(p2);
        }
        break;

        /* full circle 1/2 */
    case 2: {
        int kind = rand() % 2;
        for (int i = 0 ; i < 10 ; i++) {
            if ((i & 1) == kind) { continue; }
            p2.face = i;
            level->platform_buffer.push_back(p2);
        }
        break;
    }
        /* 3 faces, 1 empty, 5 faces */
    case 3: {
        int toggle_len = rand() % 2;
        p2.face = p1.face;
        for (int i = 0 ; i < 3 ; i++) {
            p2.length = (toggle_len) ? PLATFORM_LEN_LONG : PLATFORM_LEN_SHORT;
            level->platform_buffer.push_back(p2);
            p2.face = (p2.face + 1) % PLATFORM_COUNT;
        }
        p2.face = (p2.face + 1) % PLATFORM_COUNT;
        for (int i = 0 ; i < 5 ; i++) {
            level->platform_buffer.push_back(p2);
            p2.face = (p2.face + 1) % PLATFORM_COUNT;
        }
        break;
    }

        /* 1 face, 1 empty, 1 face, 1 emtpy, 1 face */
    case 4:
        //TODO : height
        level->platform_buffer.push_back(p2);
        p2.face = add_to_face(p2.face, -2);
        level->platform_buffer.push_back(p2);
        p2.face = add_to_face(p2.face, 4);
        level->platform_buffer.push_back(p2);
        break;

        /* foce 1 face */
    default:
        level->platform_buffer.push_back(p1);
    }
}