qmk_firmware/quantum/rgb_matrix_animations/digital_rain_anim.h
James Young fced377ac0
2020 May 30 Breaking Changes Update ()
* Branch point for 2020 May 30 Breaking Change

* Migrate `ACTION_LAYER_TOGGLE` to `TG()` ()

* Migrate `ACTION_MODS_ONESHOT` to `OSM()` ()

* Migrate `ACTION_DEFAULT_LAYER_SET` to `DF()` ()

* Migrate `ACTION_LAYER_MODS` to `LM()` ()

* Migrate `ACTION_MODS_TAP_KEY` to `MT()` ()

* Convert V-USB usbdrv to a submodule ()

* Unify Tap Hold functions and documentation ()

* Changing board names to prevent confusion ()

* Move the Keyboardio Model01 to a keyboardio/ subdir ()

* Move spaceman keyboards ()

* Migrate miscellaneous `fn_actions` entries ()

* Migrate `ACTION_MODS_KEY` to chained mod keycodes ()

* Organizing my keyboards (plaid, tartan, ergoinu) ()

* Refactor Lily58 to use split_common ()

* Refactor zinc to use split_common ()

* Add a message if bin/qmk doesn't work ()

* Fix conflicting types for 'tfp_printf' ()

* Fixed RGB_DISABLE_AFTER_TIMEOUT to be seconds based & small internals cleanup ()

* Refactor and updates to TKC1800 code ()

* Switch to qmk forks for everything ()

* audio refactor: replace deprecated PLAY_NOTE_ARRAY ()

* Audio enable corrections (2/3) ()

* Split HHKB to ANSI and JP layouts and Add VIA support for each ()

* Audio enable corrections (Part 4) ()

* Fix typo from PR7114 ()

* Augment future branch Changelogs ()

* Revert "Branch point for 2020 May 30 Breaking Change"
2020-05-30 13:14:59 -07:00

76 lines
3.2 KiB
C

#if defined(RGB_MATRIX_FRAMEBUFFER_EFFECTS) && !defined(DISABLE_RGB_MATRIX_DIGITAL_RAIN)
RGB_MATRIX_EFFECT(DIGITAL_RAIN)
# ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
# ifndef RGB_DIGITAL_RAIN_DROPS
// lower the number for denser effect/wider keyboard
# define RGB_DIGITAL_RAIN_DROPS 24
# endif
bool DIGITAL_RAIN(effect_params_t* params) {
// algorithm ported from https://github.com/tremby/Kaleidoscope-LEDEffect-DigitalRain
const uint8_t drop_ticks = 28;
const uint8_t pure_green_intensity = 0xd0;
const uint8_t max_brightness_boost = 0xc0;
const uint8_t max_intensity = 0xff;
static uint8_t drop = 0;
if (params->init) {
rgb_matrix_set_color_all(0, 0, 0);
memset(g_rgb_frame_buffer, 0, sizeof(g_rgb_frame_buffer));
drop = 0;
}
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
if (row == 0 && drop == 0 && rand() < RAND_MAX / RGB_DIGITAL_RAIN_DROPS) {
// top row, pixels have just fallen and we're
// making a new rain drop in this column
g_rgb_frame_buffer[row][col] = max_intensity;
} else if (g_rgb_frame_buffer[row][col] > 0 && g_rgb_frame_buffer[row][col] < max_intensity) {
// neither fully bright nor dark, decay it
g_rgb_frame_buffer[row][col]--;
}
// set the pixel colour
uint8_t led[LED_HITS_TO_REMEMBER];
uint8_t led_count = rgb_matrix_map_row_column_to_led(row, col, led);
// TODO: multiple leds are supported mapped to the same row/column
if (led_count > 0) {
if (g_rgb_frame_buffer[row][col] > pure_green_intensity) {
const uint8_t boost = (uint8_t)((uint16_t)max_brightness_boost * (g_rgb_frame_buffer[row][col] - pure_green_intensity) / (max_intensity - pure_green_intensity));
rgb_matrix_set_color(led[0], boost, max_intensity, boost);
} else {
const uint8_t green = (uint8_t)((uint16_t)max_intensity * g_rgb_frame_buffer[row][col] / pure_green_intensity);
rgb_matrix_set_color(led[0], 0, green, 0);
}
}
}
}
if (++drop > drop_ticks) {
// reset drop timer
drop = 0;
for (uint8_t row = MATRIX_ROWS - 1; row > 0; row--) {
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
// if ths is on the bottom row and bright allow decay
if (row == MATRIX_ROWS - 1 && g_rgb_frame_buffer[row][col] == max_intensity) {
g_rgb_frame_buffer[row][col]--;
}
// check if the pixel above is bright
if (g_rgb_frame_buffer[row - 1][col] == max_intensity) {
// allow old bright pixel to decay
g_rgb_frame_buffer[row - 1][col]--;
// make this pixel bright
g_rgb_frame_buffer[row][col] = max_intensity;
}
}
}
}
return false;
}
# endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
#endif // defined(RGB_MATRIX_FRAMEBUFFER_EFFECTS) && !defined(DISABLE_RGB_MATRIX_DIGITAL_RAIN)