You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
2.9 KiB
78 lines
2.9 KiB
#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(rgb_frame_buffer, 0, sizeof(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
|
|
rgb_frame_buffer[row][col] = max_intensity;
|
|
}
|
|
else if (rgb_frame_buffer[row][col] > 0 && rgb_frame_buffer[row][col] < max_intensity) {
|
|
// neither fully bright nor dark, decay it
|
|
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 (rgb_frame_buffer[row][col] > pure_green_intensity) {
|
|
const uint8_t boost = (uint8_t) ((uint16_t) max_brightness_boost * (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 * 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 && rgb_frame_buffer[row][col] == max_intensity) {
|
|
rgb_frame_buffer[row][col]--;
|
|
}
|
|
// check if the pixel above is bright
|
|
if (rgb_frame_buffer[row - 1][col] == max_intensity) {
|
|
// allow old bright pixel to decay
|
|
rgb_frame_buffer[row - 1][col]--;
|
|
// make this pixel bright
|
|
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)
|