1 files changed, 134 insertions, 0 deletions
diff --git a/users/bcat/bcat_oled_pet_isda.c b/users/bcat/bcat_oled_pet_isda.c
new file mode 100644
index 0000000000..98abddb13b
--- /dev/null
+++ b/users/bcat/bcat_oled_pet_isda.c
@@ -0,0 +1,134 @@
+/* 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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+        {
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+        {
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+        {
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+        },
+        // clang-format on
+    };
+    return FRAMES[state];
+}