* Add snowe keymap/userspace & Ocean Dream animation * Add snowe userspace with keymap wrappers and two animations * Add crkbd keymap * Add Ocean Dream animation, a cool full screen animation with: * * twinkling stars * * meteor showers * * ocean waves * * island with palm tree * * moon with phases * Disable Luna so travis build succeeds. * Add more copyrights * Add pragma once to keycode_aliases.h Co-authored-by: Drashna Jaelre <drashna@live.com> Co-authored-by: Drashna Jaelre <drashna@live.com>
		
			
				
	
	
		
			556 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			556 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Copyright 2021 Tyler Thrailkill (@snowe/@snowe2010) <tyler.b.thrailkill@gmail.com>
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|  *
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|  * This program is free software: you can redistribute it and/or modify
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|  * it under the terms of the GNU General Public License as published by
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|  * the Free Software Foundation, either version 2 of the License, or
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|  * (at your option) any later version.
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|  *
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|  * This program is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|  * GNU General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU General Public License
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|  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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|  */
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| 
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| #include "ocean_dream.h"
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| #include "quantum.h"
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| #include "print.h"
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| 
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| // Calculated Parameters
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| #define TWINKLE_PROBABILITY_MODULATOR 100 / TWINKLE_PROBABILITY                             // CALCULATED: Don't Touch
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| #define TOTAL_STARS STARS_PER_LINE *NUMBER_OF_STAR_LINES                                    // CALCULATED: Don't Touch
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| #define OCEAN_ANIMATION_MODULATOR NUMBER_OF_FRAMES / OCEAN_ANIMATION_SPEED                  // CALCULATED: Don't Touch
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| #define SHOOTING_STAR_ANIMATION_MODULATOR NUMBER_OF_FRAMES / SHOOTING_STAR_ANIMATION_SPEED  // CALCULATED: Don't Touch
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| #define STAR_ANIMATION_MODULATOR NUMBER_OF_FRAMES / STAR_ANIMATION_SPEED                    // CALCULATED: Don't Touch
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| 
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| uint8_t    animation_counter       = 0;  // global animation counter.
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| bool       is_calm                 = false;
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| uint32_t   starry_night_anim_timer = 0;
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| uint32_t   starry_night_anim_sleep = 0;
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| static int current_wpm             = 0;
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| 
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| static uint8_t increment_counter(uint8_t counter, uint8_t max) {
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|     counter++;
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|     if (counter >= max) {
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|         return 0;
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|     } else {
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|         return counter;
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|     }
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| }
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| 
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| #ifdef ENABLE_WAVE
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| static uint8_t decrement_counter(uint8_t counter, uint8_t max) {
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|     counter--;
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|     if (counter < 0 || counter > max) {
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|         return max;
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|     } else {
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|         return counter;
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|     }
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| }
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| #endif
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| 
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| #ifdef ENABLE_MOON  // region
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| #    ifndef STATIC_MOON
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| uint8_t  moon_animation_frame   = 0;  // keeps track of current moon frame
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| uint16_t moon_animation_counter = 0;  // counts how many frames to wait before animating moon to next frame
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| #    endif
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| 
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| #    ifdef STATIC_MOON
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| static const char PROGMEM moon[6] = {
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|     0x18, 0x7E, 0xFF, 0xC3, 0x81, 0x81,
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| };
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| #    endif
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| 
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| #    ifndef STATIC_MOON
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| static const char PROGMEM moon_animation[14][8] = {
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|     // clang-format off
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|     { 0x3C, 0x7E, 0xFF, 0xFF, 0xFF, 0xFF, 0x7E, 0x3C, },
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|     { 0x3C, 0x7E, 0xFF, 0xFF, 0xFF, 0xFF, 0x42, 0x00, },
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|     { 0x3C, 0x7E, 0xFF, 0xFF, 0xFF, 0xC3, 0x00, 0x00, },
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|     { 0x3C, 0x7E, 0xFF, 0xFF, 0xC3, 0x81, 0x00, 0x00, },
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|     { 0x3C, 0x7E, 0xFF, 0xC3, 0x81, 0x00, 0x00, 0x00, },
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|     { 0x3C, 0x7E, 0xC3, 0x81, 0x81, 0x00, 0x00, 0x00, },
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|     { 0x3C, 0x42, 0x81, 0x81, 0x00, 0x00, 0x00, 0x00, },
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|     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, },
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|     { 0x00, 0x00, 0x00, 0x00, 0x81, 0x81, 0x42, 0x3C, },
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|     { 0x00, 0x00, 0x00, 0x81, 0x81, 0xC3, 0x7E, 0x3C, },
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|     { 0x00, 0x00, 0x00, 0x81, 0xC3, 0xFF, 0x7E, 0x3C, },
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|     { 0x00, 0x00, 0x81, 0xC3, 0xFF, 0xFF, 0x7E, 0x3C, },
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|     { 0x00, 0x00, 0xC3, 0xFF, 0xFF, 0xFF, 0x7E, 0x3C, },
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|     { 0x00, 0x42, 0xFF, 0xFF, 0xFF, 0xFF, 0x7E, 0x3C, },
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|     // clang-format on
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| };
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| #    endif
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| 
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| static void draw_moon(void) {
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| #    ifdef STATIC_MOON
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|     oled_set_cursor(MOON_COLUMN, MOON_LINE);
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|     oled_write_raw_P(moon, 6);
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| #    endif
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| #    ifndef STATIC_MOON
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|     moon_animation_counter = increment_counter(moon_animation_counter, ANIMATE_MOON_EVERY_N_FRAMES);
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|     if (moon_animation_counter == 0) {
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|         moon_animation_frame = increment_counter(moon_animation_frame, 14);
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|         oled_set_cursor(MOON_COLUMN, MOON_LINE);
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|         oled_write_raw_P(moon_animation[moon_animation_frame], 8);
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|     }
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| #    endif
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| }
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| #endif  // endregion
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| 
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| #ifdef ENABLE_WAVE  // region
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| uint8_t starry_night_wave_frame_width_counter = 31;
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| uint8_t rough_waves_frame_counter             = 0;
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| 
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| // clang-format off
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| static const char PROGMEM ocean_top[8][32] = {
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|     // still ocean
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|     {
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|         0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
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|         0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
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|         0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
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|         0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
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|     },
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|     // small ripples
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|     {
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|         0x20, 0x60, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
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|         0x20, 0x60, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
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|         0x20, 0x60, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
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|         0x20, 0x60, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
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|     },
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|     // level 2 ripples
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|     {
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|         0x20, 0x60, 0x40, 0x40, 0x20, 0x60, 0x40, 0x40,
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|         0x20, 0x60, 0x40, 0x40, 0x20, 0x60, 0x40, 0x40,
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|         0x20, 0x60, 0x40, 0x40, 0x20, 0x60, 0x40, 0x40,
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|         0x20, 0x60, 0x40, 0x40, 0x20, 0x60, 0x40, 0x40,
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|     },
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|     // level 3 waves
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|     {
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|         0x40, 0x20, 0x10, 0x20, 0x40, 0x40, 0x40, 0x40,
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|         0x40, 0x20, 0x10, 0x20, 0x40, 0x40, 0x40, 0x40,
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|         0x40, 0x20, 0x10, 0x20, 0x40, 0x40, 0x40, 0x40,
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|         0x40, 0x20, 0x10, 0x20, 0x40, 0x40, 0x40, 0x40,
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|     },
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|     {
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|         0x40, 0x40, 0x20, 0x10, 0x28, 0x50, 0x40, 0x40,
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|         0x40, 0x40, 0x20, 0x10, 0x28, 0x50, 0x40, 0x40,
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|         0x40, 0x40, 0x20, 0x10, 0x28, 0x50, 0x40, 0x40,
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|         0x40, 0x40, 0x20, 0x10, 0x28, 0x50, 0x40, 0x40,
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|     },
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|     {
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|         0x40, 0x40, 0x40, 0x20, 0x10, 0x30, 0x70, 0x60,
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|         0x40, 0x40, 0x40, 0x20, 0x10, 0x30, 0x70, 0x60,
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|         0x40, 0x40, 0x40, 0x20, 0x10, 0x30, 0x70, 0x60,
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|         0x40, 0x40, 0x40, 0x20, 0x10, 0x30, 0x70, 0x60,
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|     },
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| };
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| static const char PROGMEM ocean_bottom[8][32] = {
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|     // still ocean
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|     {
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|         0x00, 0x40, 0x40, 0x41, 0x01, 0x01, 0x01, 0x21,
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|         0x20, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x44,
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|         0x44, 0x40, 0x40, 0x00, 0x00, 0x08, 0x08, 0x00,
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|         0x01, 0x01, 0x01, 0x00, 0x40, 0x40, 0x00, 0x00,
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|     },
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|     // small ripples
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|     {
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|         0x00, 0x00, 0x40, 0x40, 0x01, 0x01, 0x01, 0x20,
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|         0x20, 0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04,
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|         0x40, 0x40, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
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|         0x00, 0x01, 0x01, 0x00, 0x00, 0x40, 0x00, 0x00,
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|     },
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|     // level 2 ripples
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|     {
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|         0x00, 0x00, 0x40, 0x40, 0x01, 0x01, 0x01, 0x20,
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|         0x20, 0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04,
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|         0x40, 0x40, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
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|         0x00, 0x01, 0x01, 0x00, 0x00, 0x40, 0x00, 0x00,
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|     },
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|     // level 3 waves
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|     {
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|         0x00, 0x40, 0x40, 0x42, 0x42, 0x03, 0x11, 0x11,
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|         0x20, 0x20, 0x00, 0x00, 0x08, 0x0C, 0x0C, 0x04,
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|         0x05, 0x41, 0x41, 0x21, 0x20, 0x00, 0x00, 0x08,
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|         0x0A, 0x0A, 0x0B, 0x41, 0x41, 0x41, 0x41, 0x00,
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|     },
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|     {
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|         0x10, 0x10, 0x00, 0x80, 0x84, 0xC4, 0x02, 0x06,
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|         0x84, 0x44, 0xC0, 0x80, 0x80, 0x20, 0x20, 0x10,
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|         0x08, 0x12, 0x91, 0x81, 0x42, 0x40, 0x00, 0x00,
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|         0x10, 0x12, 0x22, 0x22, 0x24, 0x04, 0x84, 0x80,
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|     },
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|     {
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|         0x08, 0x80, 0x80, 0x82, 0x82, 0x03, 0x21, 0x21,
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|         0x10, 0x10, 0x00, 0x00, 0x04, 0x04, 0x0C, 0x08,
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|         0x09, 0x41, 0x42, 0x22, 0x20, 0x00, 0x00, 0x08,
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|         0x0A, 0x0A, 0x0B, 0x41, 0x43, 0x42, 0x42, 0x00,
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|     },
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| };
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| // clang-format on
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| 
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| static void animate_waves(void) {
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|     starry_night_wave_frame_width_counter = decrement_counter(starry_night_wave_frame_width_counter, WIDTH - 1);  // only 3 frames for last wave type
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|     rough_waves_frame_counter             = increment_counter(rough_waves_frame_counter, 3);                      // only 3 frames for last wave type
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| 
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|     void draw_ocean(uint8_t frame, uint16_t offset, uint8_t byte_index) {
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|         oled_write_raw_byte(pgm_read_byte(ocean_top[frame] + byte_index), offset);
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|         oled_write_raw_byte(pgm_read_byte(ocean_bottom[frame] + byte_index), offset + WIDTH);
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|     }
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| 
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|     for (int i = 0; i < WIDTH; ++i) {
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|         uint16_t offset     = OCEAN_LINE * WIDTH + i;
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|         uint8_t  byte_index = starry_night_wave_frame_width_counter + i;
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|         if (byte_index >= WIDTH) {
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|             byte_index = byte_index - WIDTH;
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|         }
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|         if (is_calm || current_wpm <= WAVE_CALM) {
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|             draw_ocean(0, offset, byte_index);
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|         } else if (current_wpm <= WAVE_HEAVY_STORM) {
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|             draw_ocean(1, offset, byte_index);
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|         } else if (current_wpm <= WAVE_HURRICANE) {
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|             draw_ocean(2, offset, byte_index);
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|         } else {
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|             draw_ocean(3 + rough_waves_frame_counter, offset, byte_index);
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|         }
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|     }
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| }
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| #endif  // endregion
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| 
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| #ifdef ENABLE_ISLAND  // region
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| uint8_t island_frame_1 = 0;
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| 
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| // clang-format off
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| // only use 46 bytes (first 18 are blank, so we don't write them, makes it smaller and we can see the shooting stars properly!)
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| 
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| // To save space and allow the shooting stars to be seen, only draw the tree on every frame.
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| // Tree is only 14bytes wide so we save 108 bytes on just the first row. Second row, the
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| // first 18 bytes is always the same piece of land, so only store that once, which saves 90 bytes
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| static const char PROGMEM islandRightTop[6][14] = {
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|     {0x84, 0xEC, 0x6C, 0x3C, 0xF8, 0xFE, 0x3F, 0x6B, 0xDB, 0xB9, 0x30, 0x40, 0x00, 0x00,},
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|     {0x80, 0xC3, 0xEE, 0x7C, 0xB8, 0xFC, 0xFE, 0x6F, 0xDB, 0x9B, 0xB2, 0x30, 0x00, 0x00,},
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|     {0x00, 0xC0, 0xEE, 0x7F, 0x3D, 0xF8, 0xFC, 0x7E, 0x57, 0xDB, 0xDB, 0x8A, 0x00, 0x00,},
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|     {0x00, 0xC0, 0xE6, 0x7F, 0x3B, 0xF9, 0xFC, 0xFC, 0xB6, 0xB3, 0x33, 0x61, 0x00, 0x00,},
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|     {0x00, 0x00, 0x00, 0x00, 0x80, 0xEE, 0xFF, 0xFB, 0xF9, 0xFC, 0xDE, 0xB6, 0xB6, 0x24,},
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|     {0x00, 0x00, 0x00, 0x00, 0xC0, 0xEE, 0xFE, 0xFF, 0xFB, 0xFD, 0xEE, 0xB6, 0xB6, 0x92,},
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| };
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| static const char PROGMEM islandRightBottom[6][14] = {
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|     {0x41, 0x40, 0x60, 0x3E, 0x3F, 0x23, 0x20, 0x60, 0x41, 0x43, 0x40, 0x40, 0x40, 0x80,},
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|     {0x40, 0x41, 0x60, 0x3E, 0x3F, 0x23, 0x20, 0x60, 0x40, 0x40, 0x41, 0x41, 0x40, 0x80,},
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|     {0x40, 0x40, 0x61, 0x3D, 0x3F, 0x27, 0x21, 0x60, 0x40, 0x40, 0x40, 0x40, 0x40, 0x80,},
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|     {0x40, 0x43, 0x61, 0x3C, 0x3F, 0x27, 0x21, 0x60, 0x41, 0x43, 0x43, 0x42, 0x40, 0x80,},
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|     {0x40, 0x40, 0x60, 0x3C, 0x3F, 0x27, 0x23, 0x63, 0x44, 0x40, 0x41, 0x41, 0x41, 0x81,},
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|     {0x40, 0x40, 0x60, 0x3C, 0x3F, 0x27, 0x23, 0x63, 0x42, 0x42, 0x41, 0x41, 0x41, 0x80,},
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| };
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| static const char PROGMEM islandLeft[18] = {
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|     0x80, 0x40, 0x40, 0x40, 0x40, 0x60,
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|     0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
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|     0x20, 0x20, 0x20, 0x60, 0x40, 0x40,
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| };
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| // clang-format on
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| 
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| static void animate_island(void) {
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|     if (animation_counter == 0) {
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|         island_frame_1 = increment_counter(island_frame_1, 2);
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|     }
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| 
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|     void draw_island_parts(uint8_t frame) {
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|         oled_set_cursor(ISLAND_COLUMN + 3, ISLAND_LINE);
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|         oled_write_raw_P(islandRightTop[frame], 14);
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|         oled_set_cursor(ISLAND_COLUMN + 0, ISLAND_LINE + 1);
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|         oled_write_raw_P(islandLeft, 18);
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|         oled_set_cursor(ISLAND_COLUMN + 3, ISLAND_LINE + 1);
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|         oled_write_raw_P(islandRightBottom[frame], 14);
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|     }
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| 
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|     if (is_calm || current_wpm < ISLAND_CALM) {
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|         draw_island_parts(0);
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|     } else if (current_wpm >= ISLAND_CALM && current_wpm < ISLAND_HEAVY_STORM) {
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|         draw_island_parts(island_frame_1 + 1);
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|     } else if (current_wpm >= ISLAND_HEAVY_STORM && current_wpm < ISLAND_HURRICANE) {
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|         draw_island_parts(island_frame_1 + 2);
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|     } else {
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|         draw_island_parts(island_frame_1 + 4);
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|     }
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| }
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| #endif  // endregion
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| 
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| #ifdef ENABLE_STARS  // region
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| bool stars_setup = false;  // only setup stars once, then we just twinkle them
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| struct Coordinate {
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|     int  x;
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|     int  y;
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|     bool exists;
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| };
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| 
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| struct Coordinate stars[TOTAL_STARS];  // tracks all stars/coordinates
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| 
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| /**
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|  * Setup all the initial stars on the screen
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|  * This function divides the screen into regions based on STARS_PER_LINE and NUMBER_OF_STAR_LINES
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|  * where each line is made up of 8x8 pixel groups, that are populated by a single star.
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|  *
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|  * Not sure how this function will work with larger or smaller screens.
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|  * It should be fine, as long as the screen width is a multiple of 8
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|  */
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| static void setup_stars(void) {
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|     // For every line, split the line into STARS_PER_LINE, find a random point in that region, and turn the pixel on
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|     // 36% probability it will not be added
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|     // (said another way, 80% chance it will start out lit in the x direction, then 80% chance it will start out lit in the y direction = 64% probability it will start out lit at all)
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|     for (int line = 0; line < NUMBER_OF_STAR_LINES; ++line) {
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|         for (int column_group = 0; column_group < STARS_PER_LINE; ++column_group) {
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|             uint8_t rand_column = rand() % 10;
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|             uint8_t rand_row    = rand() % 10;
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|             if (rand_column < 8 && rand_row < 8) {
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|                 int column_adder = column_group * 8;
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|                 int line_adder   = line * 8;
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|                 int x            = rand_column + column_adder;
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|                 int y            = rand_row + line_adder;
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|                 oled_write_pixel(x, y, true);
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|                 stars[column_group + (line * STARS_PER_LINE)].x      = x;
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|                 stars[column_group + (line * STARS_PER_LINE)].y      = y;
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|                 stars[column_group + (line * STARS_PER_LINE)].exists = true;
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|             } else {
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|                 stars[column_group + (line * STARS_PER_LINE)].exists = false;
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|             }
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|         }
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|     }
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|     stars_setup = true;
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| }
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| 
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| /**
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|  * Twinkle the stars (move them one pixel in any direction) with a probability of 50% to twinkle any given star
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|  */
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| static void twinkle_stars(void) {
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|     for (int line = 0; line < NUMBER_OF_STAR_LINES; ++line) {
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|         for (int column_group = 0; column_group < STARS_PER_LINE; ++column_group) {
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|             struct Coordinate star = stars[column_group + (line * STARS_PER_LINE)];
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| 
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|             // skip stars that were never added
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|             if (!star.exists) {
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|                 continue;
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|             }
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|             if (rand() % TWINKLE_PROBABILITY_MODULATOR == 0) {
 | |
|                 oled_write_pixel(star.x, star.y, false);  // black out pixel
 | |
| 
 | |
|                 // don't allow stars to leave their own region
 | |
|                 if (star.x == (column_group * 8)) {                     // star is the farthest left it can go in its region
 | |
|                     star.x++;                                           // move it right immediately
 | |
|                 } else if (star.x == (((column_group + 1) * 8) - 1)) {  // star is farthest right it can go in its region
 | |
|                     star.x--;                                           // move it left immediately
 | |
|                 }
 | |
|                 if (star.y == (line * 8)) {                     // star is the farthest up it can go in its region
 | |
|                     star.y++;                                   // move it down immediately
 | |
|                 } else if (star.y == (((line + 1) * 8) - 1)) {  // star is farthest down it can go in its region
 | |
|                     star.y--;                                   // move it up immediately
 | |
|                 }
 | |
| 
 | |
|                 // now decide direction
 | |
|                 int new_x;
 | |
|                 int x_choice = rand() % 3;
 | |
|                 if (x_choice == 0) {
 | |
|                     new_x = star.x - 1;
 | |
|                 } else if (x_choice == 1) {
 | |
|                     new_x = star.x + 1;
 | |
|                 } else {
 | |
|                     new_x = star.x;
 | |
|                 }
 | |
| 
 | |
|                 int new_y;
 | |
|                 int y_choice = rand() % 3;
 | |
|                 if (y_choice == 0) {
 | |
|                     new_y = star.y - 1;
 | |
|                 } else if (y_choice == 1) {
 | |
|                     new_y = star.y + 1;
 | |
|                 } else {
 | |
|                     new_y = star.y;
 | |
|                 }
 | |
| 
 | |
|                 star.x = new_x;
 | |
|                 star.y = new_y;
 | |
|                 oled_write_pixel(new_x, new_y, true);
 | |
|             }
 | |
| 
 | |
|             stars[column_group + (line * STARS_PER_LINE)] = star;
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Setup the stars and then animate them on subsequent frames
 | |
|  */
 | |
| static void animate_stars(void) {
 | |
|     if (!stars_setup) {
 | |
|         setup_stars();
 | |
|     } else {
 | |
|         twinkle_stars();
 | |
|     }
 | |
| }
 | |
| #endif  // endregion
 | |
| 
 | |
| #ifdef ENABLE_SHOOTING_STARS  // region
 | |
| bool shooting_stars_setup = false;  // only setup shooting stars array once with defaults
 | |
| 
 | |
| struct ShootingStar {
 | |
|     int  x_1;
 | |
|     int  y_1;
 | |
|     int  x_2;
 | |
|     int  y_2;
 | |
|     bool running;
 | |
|     int  frame;
 | |
|     int  delay;
 | |
| };
 | |
| 
 | |
| struct ShootingStar shooting_stars[MAX_NUMBER_OF_SHOOTING_STARS];  // tracks all the shooting stars
 | |
| 
 | |
| static void setup_shooting_star(struct ShootingStar *shooting_star) {
 | |
|     int column_to_start = rand() % (WIDTH / 2);
 | |
|     int row_to_start    = rand() % (HEIGHT - 48);  // shooting_stars travel diagonally 1 down, 1 across. So the lowest a shooting_star can start and not 'hit' the ocean is 32 above the ocean.
 | |
| 
 | |
|     shooting_star->x_1     = column_to_start;
 | |
|     shooting_star->y_1     = row_to_start;
 | |
|     shooting_star->x_2     = column_to_start + 1;
 | |
|     shooting_star->y_2     = row_to_start + 1;
 | |
|     shooting_star->running = true;
 | |
|     shooting_star->frame++;
 | |
|     shooting_star->delay = rand() % SHOOTING_STAR_DELAY;
 | |
| }
 | |
| 
 | |
| static void move_shooting_star(struct ShootingStar *shooting_star) {
 | |
|     oled_write_pixel(shooting_star->x_1, shooting_star->y_1, false);
 | |
|     oled_write_pixel(shooting_star->x_2, shooting_star->y_2, false);
 | |
| 
 | |
|     shooting_star->x_1++;
 | |
|     shooting_star->y_1++;
 | |
|     shooting_star->x_2++;
 | |
|     shooting_star->y_2++;
 | |
|     shooting_star->frame++;
 | |
| 
 | |
|     oled_write_pixel(shooting_star->x_1, shooting_star->y_1, true);
 | |
|     oled_write_pixel(shooting_star->x_2, shooting_star->y_2, true);
 | |
| }
 | |
| 
 | |
| static void finish_shooting_star(struct ShootingStar *shooting_star) {
 | |
|     oled_write_pixel(shooting_star->x_1, shooting_star->y_1, false);
 | |
|     oled_write_pixel(shooting_star->x_2, shooting_star->y_2, false);
 | |
|     shooting_star->running = false;
 | |
|     shooting_star->frame   = 0;
 | |
| }
 | |
| 
 | |
| static void animate_shooting_star(struct ShootingStar *shooting_star) {
 | |
|     if (shooting_star->frame > SHOOTING_STAR_FRAMES) {
 | |
|         finish_shooting_star(shooting_star);
 | |
|         return;
 | |
|     } else if (!shooting_star->running) {
 | |
|         setup_shooting_star(shooting_star);
 | |
|     } else {
 | |
|         if (shooting_star->delay == 0) {
 | |
|             move_shooting_star(shooting_star);
 | |
|         } else {
 | |
|             shooting_star->delay--;
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| static void animate_shooting_stars(void) {
 | |
|     if (is_calm) {
 | |
|         return;
 | |
|     }
 | |
|     if (!shooting_stars_setup) {
 | |
|         for (int i = 0; i < MAX_NUMBER_OF_SHOOTING_STARS; ++i) {
 | |
|             shooting_stars[i].running = false;
 | |
|         }
 | |
|         shooting_stars_setup = true;
 | |
|     }
 | |
|     /**
 | |
|      * Fixes issue with stars that were falling _while_ the
 | |
|      * wpm dropped below the condition for them to keep falling
 | |
|      */
 | |
|     void end_extra_stars(uint8_t starting_index) {
 | |
|         for (int shooting_star_index = starting_index; shooting_star_index < MAX_NUMBER_OF_SHOOTING_STARS; ++shooting_star_index) {
 | |
|             struct ShootingStar shooting_star = shooting_stars[shooting_star_index];
 | |
|             if (shooting_star.running) {
 | |
|                 finish_shooting_star(&shooting_star);
 | |
|                 shooting_stars[shooting_star_index] = shooting_star;
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     int number_of_shooting_stars = current_wpm / SHOOTING_STAR_WPM_INCREMENT;
 | |
|     number_of_shooting_stars     = (number_of_shooting_stars > MAX_NUMBER_OF_SHOOTING_STARS) ? MAX_NUMBER_OF_SHOOTING_STARS : number_of_shooting_stars;
 | |
| 
 | |
|     if (number_of_shooting_stars == 0) {
 | |
|         // make sure all shooting_stars are ended
 | |
|         end_extra_stars(0);
 | |
|     } else {
 | |
|         for (int shooting_star_index = 0; shooting_star_index < number_of_shooting_stars; ++shooting_star_index) {
 | |
|             struct ShootingStar shooting_star = shooting_stars[shooting_star_index];
 | |
|             animate_shooting_star(&shooting_star);
 | |
|             shooting_stars[shooting_star_index] = shooting_star;
 | |
|         }
 | |
|         end_extra_stars(number_of_shooting_stars);
 | |
|     }
 | |
| }
 | |
| #endif  // endregion
 | |
| 
 | |
| /**
 | |
|  * Main rendering function
 | |
|  *
 | |
|  * Calls all different animations at different rates
 | |
|  */
 | |
| void render_stars(void) {
 | |
|     //    // animation timer
 | |
|     if (timer_elapsed32(starry_night_anim_timer) > STARRY_NIGHT_ANIM_FRAME_DURATION) {
 | |
|         starry_night_anim_timer = timer_read32();
 | |
|         current_wpm             = get_current_wpm();
 | |
| 
 | |
| #ifdef ENABLE_ISLAND
 | |
|         animate_island();
 | |
| #endif
 | |
| 
 | |
| #ifdef ENABLE_SHOOTING_STARS
 | |
|         if (animation_counter % SHOOTING_STAR_ANIMATION_MODULATOR == 0) {
 | |
|             animate_shooting_stars();
 | |
|         }
 | |
| #endif
 | |
| 
 | |
| #ifdef ENABLE_STARS
 | |
|         // TODO offsetting the star animation from the wave animation would look better,
 | |
|         // but if I do that, then the stars appear in the water because
 | |
|         // the ocean animation has to wait a bunch of frames to overwrite it.
 | |
|         // Possible solutions:
 | |
|         // 1. Only draw stars to the top of the island/ocean.
 | |
|         // 2. Draw ocean every frame, only move ocean on frames matching modulus
 | |
|         // Problems:
 | |
|         // 1. What if someone wants to move the island up a bit, or they want to have the stars reflect in the water?
 | |
|         // 2. More cpu intensive. And I'm already running out of cpu as it is...
 | |
|         if (animation_counter % STAR_ANIMATION_MODULATOR == 0) {
 | |
|             animate_stars();
 | |
|         }
 | |
| #endif
 | |
| 
 | |
| #ifdef ENABLE_WAVE
 | |
|         if (animation_counter % OCEAN_ANIMATION_MODULATOR == 0) {
 | |
|             animate_waves();
 | |
|         }
 | |
| #endif
 | |
| 
 | |
| #ifdef ENABLE_MOON
 | |
|         draw_moon();
 | |
| #endif
 | |
| 
 | |
|         animation_counter = increment_counter(animation_counter, NUMBER_OF_FRAMES);
 | |
|     }
 | |
| 
 | |
|     // this fixes the screen on and off bug
 | |
|     if (current_wpm > 0) {
 | |
|         oled_on();
 | |
|         starry_night_anim_sleep = timer_read32();
 | |
|     } else if (timer_elapsed32(starry_night_anim_sleep) > OLED_TIMEOUT) {
 | |
|         oled_off();
 | |
|     }
 | |
| }
 |