New RGB Animations - 4 "Starlight" Animation Variations (qmk#22212)

christrotter · Nov 28, 2023 · b6d31b7 · b6d31b7
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diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
@@ -656,6 +656,10 @@ enum rgb_matrix_effects {
     RGB_MATRIX_MULTISPLASH,         // Full gradient & value pulse away from multiple key hits then fades value out
     RGB_MATRIX_SOLID_SPLASH,        // Hue & value pulse away from a single key hit then fades value out
     RGB_MATRIX_SOLID_MULTISPLASH,   // Hue & value pulse away from multiple key hits then fades value out
+    RGB_MATRIX_STARLIGHT,           // LEDs turn on and off at random at varying brightness, maintaining user set color
+    RGB_MATRIX_STARLIGHT_DUAL_HUE,  // LEDs turn on and off at random at varying brightness, modifies user set hue by +- 30
+    RGB_MATRIX_STARLIGHT_DUAL_SAT,  // LEDs turn on and off at random at varying brightness, modifies user set saturation by +- 30
+    RGB_MATRIX_RIVERFLOW,           // Modification to breathing animation, offset's animation depending on key location to simulate a river flowing
     RGB_MATRIX_EFFECT_MAX
 };
 ```
@@ -695,6 +699,10 @@ You can enable a single effect by defining `ENABLE_[EFFECT_NAME]` in your `confi
 |`#define ENABLE_RGB_MATRIX_PIXEL_FRACTAL`             |Enables `RGB_MATRIX_PIXEL_FRACTAL`            |
 |`#define ENABLE_RGB_MATRIX_PIXEL_FLOW`                |Enables `RGB_MATRIX_PIXEL_FLOW`               |
 |`#define ENABLE_RGB_MATRIX_PIXEL_RAIN`                |Enables `RGB_MATRIX_PIXEL_RAIN`               |
+|`#define ENABLE_RGB_MATRIX_STARLIGHT`                 |Enables `RGB_MATRIX_STARLIGHT`                |
+|`#define ENABLE_RGB_MATRIX_STARLIGHT_DUAL_HUE`        |Enables `RGB_MATRIX_STARLIGHT_DUAL_HUE`       |
+|`#define ENABLE_RGB_MATRIX_STARLIGHT_DUAL_SAT`        |Enables `RGB_MATRIX_STARLIGHT_DUAL_SAT`       |
+|`#define ENABLE_RGB_MATRIX_RIVERFLOW`                 |Enables `RGB_MATRIX_RIVERFLOW`                |
 
 |Framebuffer Defines                                   |Description                                   |
 |------------------------------------------------------|----------------------------------------------|

diff --git a/quantum/rgb_matrix/animations/rgb_matrix_effects.inc b/quantum/rgb_matrix/animations/rgb_matrix_effects.inc
@@ -39,3 +39,7 @@
 #include "solid_reactive_nexus.h"
 #include "splash_anim.h"
 #include "solid_splash_anim.h"
+#include "starlight_anim.h"
+#include "starlight_dual_sat_anim.h"
+#include "starlight_dual_hue_anim.h"
+#include "riverflow_anim.h"
diff --git a/quantum/rgb_matrix/animations/riverflow_anim.h b/quantum/rgb_matrix/animations/riverflow_anim.h
@@ -0,0 +1,22 @@
+#ifdef ENABLE_RGB_MATRIX_RIVERFLOW
+RGB_MATRIX_EFFECT(RIVERFLOW)
+#    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+
+// inspired by @PleasureTek's Massdrop Alt LED animation
+
+bool RIVERFLOW(effect_params_t* params) {
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+    for (uint8_t i = led_min; i < led_max; i++) {
+        HSV      hsv  = rgb_matrix_config.hsv;
+        uint16_t time = scale16by8(g_rgb_timer + (i * 315), rgb_matrix_config.speed / 8);
+        hsv.v         = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
+        RGB rgb       = rgb_matrix_hsv_to_rgb(hsv);
+        RGB_MATRIX_TEST_LED_FLAGS();
+        rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+    }
+
+    return rgb_matrix_check_finished_leds(led_max);
+}
+
+#    endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+#endif     // ENABLE_RGB_MATRIX_RIVERFLOW
diff --git a/quantum/rgb_matrix/animations/starlight_anim.h b/quantum/rgb_matrix/animations/starlight_anim.h
@@ -0,0 +1,30 @@
+#ifdef ENABLE_RGB_MATRIX_STARLIGHT
+RGB_MATRIX_EFFECT(STARLIGHT)
+#    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+
+void set_starlight_color(int i, effect_params_t* params) {
+    uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 8);
+    HSV      hsv  = rgb_matrix_config.hsv;
+    hsv.v         = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
+    RGB rgb       = hsv_to_rgb(hsv);
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+}
+
+bool STARLIGHT(effect_params_t* params) {
+    if (!params->init) {
+        if (scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed, 5)) % 5 == 0) {
+            int rand_led = rand() % RGB_MATRIX_LED_COUNT;
+            set_starlight_color(rand_led, params);
+        }
+        return false;
+    }
+
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+    for (int i = led_min; i < led_max; i++) {
+        set_starlight_color(i, params);
+    }
+    return rgb_matrix_check_finished_leds(led_max);
+}
+
+#    endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+#endif     // ENABLE_RGB_MATRIX_STARLIGHT
diff --git a/quantum/rgb_matrix/animations/starlight_dual_hue_anim.h b/quantum/rgb_matrix/animations/starlight_dual_hue_anim.h
@@ -0,0 +1,31 @@
+#ifdef ENABLE_RGB_MATRIX_STARLIGHT_DUAL_HUE
+RGB_MATRIX_EFFECT(STARLIGHT_DUAL_HUE)
+#    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+
+void set_starlight_dual_hue_color(int i, effect_params_t* params) {
+    uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 8);
+    HSV      hsv  = rgb_matrix_config.hsv;
+    hsv.v         = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
+    hsv.h         = hsv.h + (rand() % (30 + 1 - -30) + -30);
+    RGB rgb       = hsv_to_rgb(hsv);
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+}
+
+bool STARLIGHT_DUAL_HUE(effect_params_t* params) {
+    if (!params->init) {
+        if (scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed, 5)) % 5 == 0) {
+            int rand_led = rand() % RGB_MATRIX_LED_COUNT;
+            set_starlight_dual_hue_color(rand_led, params);
+        }
+        return false;
+    }
+
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+    for (int i = led_min; i < led_max; i++) {
+        set_starlight_dual_hue_color(i, params);
+    }
+    return rgb_matrix_check_finished_leds(led_max);
+}
+
+#    endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+#endif     // ENABLE_RGB_MATRIX_STARLIGHT_DUAL_HUE
diff --git a/quantum/rgb_matrix/animations/starlight_dual_sat_anim.h b/quantum/rgb_matrix/animations/starlight_dual_sat_anim.h
@@ -0,0 +1,31 @@
+#ifdef ENABLE_RGB_MATRIX_STARLIGHT_DUAL_SAT
+RGB_MATRIX_EFFECT(STARLIGHT_DUAL_SAT)
+#    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+
+void set_starlight_dual_sat_color(int i, effect_params_t* params) {
+    uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 8);
+    HSV      hsv  = rgb_matrix_config.hsv;
+    hsv.v         = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
+    hsv.s         = hsv.s + (rand() % (30 + 1 - -30) + -30);
+    RGB rgb       = hsv_to_rgb(hsv);
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+}
+
+bool STARLIGHT_DUAL_SAT(effect_params_t* params) {
+    if (!params->init) {
+        if (scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed, 5)) % 5 == 0) {
+            int rand_led = rand() % RGB_MATRIX_LED_COUNT;
+            set_starlight_dual_sat_color(rand_led, params);
+        }
+        return false;
+    }
+
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+    for (int i = led_min; i < led_max; i++) {
+        set_starlight_dual_sat_color(i, params);
+    }
+    return rgb_matrix_check_finished_leds(led_max);
+}
+
+#    endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+#endif     // ENABLE_RGB_MATRIX_STARLIGHT_DUAL_SAT