qmk_firmware/users/bcat/bcat_oled_pet_isda.c

/* Copyright 2018 sparrow666
 * Copyright 2021 Jonathan Rascher
 *
 * 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/>.
 */

/* OLED pet "Isda" (animated unicorn) featuring artwork by OpenGameArt user
 * sparrow666, licensed under GPL v2.0.
 *
 * The animation is 32x72 pixels (9 lines tall).
 *
 * Runs faster the quicker you type. Shows LED indicator (Num/Caps/Scroll Lock)
 * status in the bottom-right corner.
 *
 * Named after the goddess Ehlonna's personal unicorn in the first D&D campaign
 * I ever played. :)
 *
 * Artwork source: https://opengameart.org/content/unicorn-2
 */

#include "bcat_oled_pet.h"

#include <stdbool.h>
#include <stdint.h>

#include "bcat_oled.h"
#include "led.h"
#include "oled_driver.h"
#include "progmem.h"

#define NUM_FRAMES 4
#define FRAME_BYTES 288 /* (32 pixel) * (72 pixel) / (8 pixel/byte) */

uint16_t oled_pet_frame_bytes(void) { return FRAME_BYTES; }
uint8_t  oled_pet_frame_lines(void) { return 9 /* (72 pixel) / (8 pixel/line) */; }
bool     oled_pet_can_jump(void) { return false; }

uint16_t oled_pet_update_millis(const oled_keyboard_state_t *keyboard_state) {
    static const uint16_t MIN_MILLIS = 75;
    static const uint16_t MAX_MILLIS = 300;
    static const uint8_t  MAX_WPM    = 150;
    uint8_t               wpm        = keyboard_state->wpm;
    if (wpm > MAX_WPM) {
        wpm = MAX_WPM;
    }
    return MAX_MILLIS - (MAX_MILLIS - MIN_MILLIS) * wpm / MAX_WPM;
}

oled_pet_state_t oled_pet_next_state(oled_pet_state_t state, const oled_keyboard_state_t *keyboard_state) {
    /* When the user stops typing, cycle the animation to frame 0 and stop. */
    return state != 0 || keyboard_state->wpm > 0 ? (state + 1) % NUM_FRAMES : 0;
}

void oled_pet_post_render(uint8_t col, uint8_t line, const oled_keyboard_state_t *keyboard_state, bool redraw) {
    /* Draws LED indicator status in the bottom-right corner of the OLED pet,
     * atop the animation frame. Redrawn only when necessary, e.g., when LED
     * status changes or the animation itself updated (which overwrites any
     * previously drawn indicators).
     */
    static led_t prev_leds = {.raw = 0};
    led_t        leds      = keyboard_state->leds;
    if (redraw || leds.raw != prev_leds.raw) {
        oled_set_cursor(col + 4, line + 4);
        oled_write_char(leds.num_lock ? 'N' : ' ', /*invert=*/false);
        oled_set_cursor(col + 4, line + 6);
        oled_write_char(leds.caps_lock ? 'C' : ' ', /*invert=*/false);
        oled_set_cursor(col + 4, line + 8);
        oled_write_char(leds.scroll_lock ? 'S' : ' ', /*invert=*/false);
        prev_leds = leds;
    }
}

const char *oled_pet_frame(oled_pet_state_t state) {
    static const char PROGMEM FRAMES[NUM_FRAMES][FRAME_BYTES] = {
        // clang-format off
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        },
        // clang-format on
    };
    return FRAMES[state];
}