qmk_firmware/keyboards/terrazzo/terrazzo_effects/outrun.h

/* Copyright 2020 ademey "MsMustard"
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef DISABLE_TERRAZZO_EFFECT_OUTRUN
TERRAZZO_EFFECT(OUTRUN)
#   ifdef TERRAZZO_EFFECT_IMPLS

static uint8_t outrun_sun[25] = {
    0, 9, 9, 9, 0,
    7, 7, 7, 7, 7,
    4, 4, 4, 4, 4,
    2, 2, 2, 2, 2,
    0, 1, 1, 1, 0
};

static uint8_t outrun_ground[63] = {
    0, 0, 1, 1, 1, 0, 0,
    0, 2, 0, 2, 0, 2, 0,
    0, 2, 0, 2, 0, 2, 0,
    0, 2, 0, 4, 0, 2, 0,
    2, 0, 0, 5, 0, 0, 2,
    2, 0, 0, 5, 0, 0, 2,
    2, 0, 0, 6, 0, 0, 2,
    0, 0, 0, 7, 0, 0, 0,
    0, 0, 0, 8, 0, 0, 0
};

static uint8_t outrun_rows[4][63] = {
{
    1, 1, 1, 1, 1, 1, 1,
    0, 0, 0, 0, 0, 0, 0,
    2, 2, 2, 2, 2, 2, 2,
    0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0,
    4, 4, 4, 4, 4, 4, 4,
    0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0
},
{
    0, 0, 0, 0, 0, 0, 0,
    1, 1, 1, 1, 1, 1, 1,
    0, 0, 0, 0, 0, 0, 0,
    2, 2, 2, 2, 2, 2, 2,
    0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0,
    4, 4, 4, 4, 4, 4, 4,
    0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0
},
{
    1, 1, 1, 1, 1, 1, 1,
    0, 0, 0, 0, 0, 0, 0,
    2, 2, 2, 2, 2, 2, 2,
    0, 0, 0, 0, 0, 0, 0,
    4, 4, 4, 4, 4, 4, 4,
    0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0,
    9, 9, 9, 9, 9, 9, 9,
    0, 0, 0, 0, 0, 0, 0
},
{
    0, 0, 0, 0, 0, 0, 0,
    1, 1, 1, 1, 1, 1, 1,
    0, 0, 0, 0, 0, 0, 0,
    2, 2, 2, 2, 2, 2, 2,
    0, 0, 0, 0, 0, 0, 0,
    4, 4, 4, 4, 4, 4, 4,
    0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0,
    9, 9, 9, 9, 9, 9, 9
}
};

bool last_dir;
uint8_t change_index = 0;

void OUTRUN(uint8_t i, bool dir) {
    led_matrix_set_index_value_all(0);
    
    if(dir != last_dir) {
       change_index = i;
    }

    uint8_t change_diff = abs(i - change_index);
    uint8_t horz_bright = 9;

    if(change_diff < 4) { 
        if (dir) {
           terrazzo_draw_at(1, 4 - change_diff, 5, 1 + change_diff, outrun_sun);
           horz_bright = 3 + change_diff;
        } else {
           terrazzo_draw_at(1, 0 + change_diff, 5, 5 - change_diff, outrun_sun);
           horz_bright = 5 - change_diff;
        }
    } else { 
       if (dir) {
            terrazzo_draw_at(1, 0, 5, 5, outrun_sun);
       } else {
           horz_bright = 1;
       }
    }

    for(int x = 0; x < 7; x++){
        terrazzo_set_pixel(x, 5, horz_bright);
    }
    // Sun is larger but render the top 3 rows only
    terrazzo_draw_at(0, 6, 7, 10, outrun_ground);
    terrazzo_draw_at(0, 6, 7, 10, outrun_rows[i % 4]);
    last_dir = dir;
}

#   endif
#endif