RGB Matrix Animations: Three/six new reactive effects (wide, cross, nexus) (#5602)

* added 3 new RGB_Matrix effects

* made cross effect behavior smoother

* removed dead code

* added effect descriptions

6 files changed, 224 insertions, 21 deletions

diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
index 5309e749c..f2168ab16 100644
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@@ -189,6 +189,12 @@ enum rgb_matrix_effects {
 #if defined(RGB_MATRIX_KEYPRESSES) || defined(RGB_MATRIX_KEYRELEASES)
     RGB_MATRIX_SOLID_REACTIVE_SIMPLE,   // Pulses keys hit to hue & value then fades value out
     RGB_MATRIX_SOLID_REACTIVE,      // Static single hue, pulses keys hit to shifted hue then fades to current hue
+    RGB_MATRIX_SOLID_REACTIVE_WIDE       // Hue & value pulse near a single key hit then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE  // Hue & value pulse near multiple key hits then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_CROSS      // Hue & value pulse the same column and row of a single key hit then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_MULTICROSS // Hue & value pulse the same column and row of multiple key hits then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_NEXUS      // Hue & value pulse away on the same column and row of a single key hit then fades value out
+    RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS // Hue & value pulse away on the same column and row of multiple key hits then fades value out
     RGB_MATRIX_SPLASH,              // Full gradient & value pulse away from a single key hit then fades value out
     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
@@ -201,27 +207,33 @@ enum rgb_matrix_effects {
 You can disable a single effect by defining `DISABLE_[EFFECT_NAME]` in your `config.h`:
 
 
-|Define                                             |Description                                 |
-|---------------------------------------------------|--------------------------------------------|
-|`#define DISABLE_RGB_MATRIX_ALPHAS_MODS`           |Disables `RGB_MATRIX_ALPHAS_MODS`           |
-|`#define DISABLE_RGB_MATRIX_GRADIENT_UP_DOWN`      |Disables `RGB_MATRIX_GRADIENT_UP_DOWN`      |
-|`#define DISABLE_RGB_MATRIX_BREATHING`             |Disables `RGB_MATRIX_BREATHING`             |
-|`#define DISABLE_RGB_MATRIX_CYCLE_ALL`             |Disables `RGB_MATRIX_CYCLE_ALL`             |
-|`#define DISABLE_RGB_MATRIX_CYCLE_LEFT_RIGHT`      |Disables `RGB_MATRIX_CYCLE_LEFT_RIGHT`      |
-|`#define DISABLE_RGB_MATRIX_CYCLE_UP_DOWN`         |Disables `RGB_MATRIX_CYCLE_UP_DOWN`         |
-|`#define DISABLE_RGB_MATRIX_RAINBOW_MOVING_CHEVRON`|Disables `RGB_MATRIX_RAINBOW_MOVING_CHEVRON`|
-|`#define DISABLE_RGB_MATRIX_DUAL_BEACON`           |Disables `RGB_MATRIX_DUAL_BEACON`           |
-|`#define DISABLE_RGB_MATRIX_RAINBOW_BEACON`        |Disables `RGB_MATRIX_RAINBOW_BEACON`        |
-|`#define DISABLE_RGB_MATRIX_RAINBOW_PINWHEELS`     |Disables `RGB_MATRIX_RAINBOW_PINWHEELS`     |
-|`#define DISABLE_RGB_MATRIX_RAINDROPS`             |Disables `RGB_MATRIX_RAINDROPS`             |
-|`#define DISABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS`   |Disables `RGB_MATRIX_JELLYBEAN_RAINDROPS`   |
-|`#define DISABLE_RGB_MATRIX_DIGITAL_RAIN`          |Disables `RGB_MATRIX_DIGITAL_RAIN`          |
-|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE`        |Disables `RGB_MATRIX_SOLID_REACTIVE`        |
-|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE_SIMPLE` |Disables `RGB_MATRIX_SOLID_REACTIVE_SIMPLEE`|
-|`#define DISABLE_RGB_MATRIX_SPLASH`                |Disables `RGB_MATRIX_SPLASH`                |
-|`#define DISABLE_RGB_MATRIX_MULTISPLASH`           |Disables `RGB_MATRIX_MULTISPLASH`           |
-|`#define DISABLE_RGB_MATRIX_SOLID_SPLASH`          |Disables `RGB_MATRIX_SOLID_SPLASH`          |
-|`#define DISABLE_RGB_MATRIX_SOLID_MULTISPLASH`     |Disables `RGB_MATRIX_SOLID_MULTISPLASH`     |
+|Define                                                 |Description                                    |
+|-------------------------------------------------------|-----------------------------------------------|
+|`#define DISABLE_RGB_MATRIX_ALPHAS_MODS`               |Disables `RGB_MATRIX_ALPHAS_MODS`              |
+|`#define DISABLE_RGB_MATRIX_GRADIENT_UP_DOWN`          |Disables `RGB_MATRIX_GRADIENT_UP_DOWN`         |
+|`#define DISABLE_RGB_MATRIX_BREATHING`                 |Disables `RGB_MATRIX_BREATHING`                |
+|`#define DISABLE_RGB_MATRIX_CYCLE_ALL`                 |Disables `RGB_MATRIX_CYCLE_ALL`                |
+|`#define DISABLE_RGB_MATRIX_CYCLE_LEFT_RIGHT`          |Disables `RGB_MATRIX_CYCLE_LEFT_RIGHT`         |
+|`#define DISABLE_RGB_MATRIX_CYCLE_UP_DOWN`             |Disables `RGB_MATRIX_CYCLE_UP_DOWN`            |
+|`#define DISABLE_RGB_MATRIX_RAINBOW_MOVING_CHEVRON`    |Disables `RGB_MATRIX_RAINBOW_MOVING_CHEVRON`   |
+|`#define DISABLE_RGB_MATRIX_DUAL_BEACON`               |Disables `RGB_MATRIX_DUAL_BEACON`              |
+|`#define DISABLE_RGB_MATRIX_RAINBOW_BEACON`            |Disables `RGB_MATRIX_RAINBOW_BEACON`           |
+|`#define DISABLE_RGB_MATRIX_RAINBOW_PINWHEELS`         |Disables `RGB_MATRIX_RAINBOW_PINWHEELS`        |
+|`#define DISABLE_RGB_MATRIX_RAINDROPS`                 |Disables `RGB_MATRIX_RAINDROPS`                |
+|`#define DISABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS`       |Disables `RGB_MATRIX_JELLYBEAN_RAINDROPS`      |
+|`#define DISABLE_RGB_MATRIX_DIGITAL_RAIN`              |Disables `RGB_MATRIX_DIGITAL_RAIN`             |
+|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE`            |Disables `RGB_MATRIX_SOLID_REACTIVE`           |
+|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE_SIMPLE`     |Disables `RGB_MATRIX_SOLID_REACTIVE_SIMPLE`    |
+|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE`       |Disables `RGB_MATRIX_SOLID_REACTIVE_WIDE`      |
+|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE`  |Disables `RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE` |
+|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS`      |Disables `RGB_MATRIX_SOLID_REACTIVE_CROSS`     |
+|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS` |Disables `RGB_MATRIX_SOLID_REACTIVE_MULTICROSS`|
+|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS`      |Disables `RGB_MATRIX_SOLID_REACTIVE_NEXUS`     |
+|`#define DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS` |Disables `RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS`|
+|`#define DISABLE_RGB_MATRIX_SPLASH`                    |Disables `RGB_MATRIX_SPLASH`                   |
+|`#define DISABLE_RGB_MATRIX_MULTISPLASH`               |Disables `RGB_MATRIX_MULTISPLASH`              |
+|`#define DISABLE_RGB_MATRIX_SOLID_SPLASH`              |Disables `RGB_MATRIX_SOLID_SPLASH`             |
+|`#define DISABLE_RGB_MATRIX_SOLID_MULTISPLASH`         |Disables `RGB_MATRIX_SOLID_MULTISPLASH`        |
 
 
 ## Custom layer effects
diff --git a/quantum/rgb_matrix.c b/quantum/rgb_matrix.c
index a1193d4c0..41ed8983e 100644
--- a/quantum/rgb_matrix.c
+++ b/quantum/rgb_matrix.c
@@ -41,6 +41,9 @@
 #include "rgb_matrix_animations/digital_rain_anim.h"
 #include "rgb_matrix_animations/solid_reactive_simple_anim.h"
 #include "rgb_matrix_animations/solid_reactive_anim.h"
+#include "rgb_matrix_animations/solid_reactive_wide.h"
+#include "rgb_matrix_animations/solid_reactive_cross.h"
+#include "rgb_matrix_animations/solid_reactive_nexus.h"
 #include "rgb_matrix_animations/splash_anim.h"
 #include "rgb_matrix_animations/solid_splash_anim.h"
 #include "rgb_matrix_animations/breathing_anim.h"
@@ -380,6 +383,36 @@ static void rgb_task_render(uint8_t effect) {
       rendering = rgb_matrix_solid_reactive(&rgb_effect_params);       // Max 4ms Avg 3ms
       break;
 #endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE
+    case RGB_MATRIX_SOLID_REACTIVE_WIDE:
+      rendering = rgb_matrix_solid_reactive_wide(&rgb_effect_params);       // Max ?? ms Avg ?? ms
+      break;
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE
+    case RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE:
+      rendering = rgb_matrix_solid_reactive_multiwide(&rgb_effect_params);       // Max ?? ms Avg ?? ms
+      break;
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS
+    case RGB_MATRIX_SOLID_REACTIVE_CROSS:
+      rendering = rgb_matrix_solid_reactive_cross(&rgb_effect_params);       // Max ?? ms Avg ?? ms
+      break;
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS
+    case RGB_MATRIX_SOLID_REACTIVE_MULTICROSS:
+      rendering = rgb_matrix_solid_reactive_multicross(&rgb_effect_params);       // Max ?? ms Avg ?? ms
+      break;
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS
+    case RGB_MATRIX_SOLID_REACTIVE_NEXUS:
+      rendering = rgb_matrix_solid_reactive_nexus(&rgb_effect_params);       // Max ?? ms Avg ?? ms
+      break;
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS
+    case RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS:
+      rendering = rgb_matrix_solid_reactive_multinexus(&rgb_effect_params);       // Max ?? ms Avg ?? ms
+      break;
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS
 #ifndef DISABLE_RGB_MATRIX_SPLASH
     case RGB_MATRIX_SPLASH:
       rendering = rgb_matrix_splash(&rgb_effect_params);               // Max 5ms Avg 3ms
diff --git a/quantum/rgb_matrix.h b/quantum/rgb_matrix.h
index f5be49435..5fdc854f0 100644
--- a/quantum/rgb_matrix.h
+++ b/quantum/rgb_matrix.h
@@ -111,6 +111,24 @@ enum rgb_matrix_effects {
 #ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE
   RGB_MATRIX_SOLID_REACTIVE,
 #endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE
+  RGB_MATRIX_SOLID_REACTIVE_WIDE,
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE
+  RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE,
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS
+  RGB_MATRIX_SOLID_REACTIVE_CROSS,
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS
+  RGB_MATRIX_SOLID_REACTIVE_MULTICROSS,
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS
+  RGB_MATRIX_SOLID_REACTIVE_NEXUS,
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS
+  RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS,
+#endif // DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS
 #ifndef DISABLE_RGB_MATRIX_SPLASH
   RGB_MATRIX_SPLASH,
 #endif // DISABLE_RGB_MATRIX_SPLASH
diff --git a/quantum/rgb_matrix_animations/solid_reactive_cross.h b/quantum/rgb_matrix_animations/solid_reactive_cross.h
new file mode 100644
index 000000000..af602cba1
--- /dev/null
+++ b/quantum/rgb_matrix_animations/solid_reactive_cross.h
@@ -0,0 +1,50 @@
+#pragma once
+#ifdef RGB_MATRIX_KEYREACTIVE_ENABLED
+#if !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS) || !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS)
+
+extern const rgb_led g_rgb_leds[DRIVER_LED_TOTAL];
+extern rgb_config_t rgb_matrix_config;
+extern last_hit_t g_last_hit_tracker;
+
+static bool rgb_matrix_solid_reactive_multicross_range(uint8_t start, effect_params_t* params) {
+  RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+  HSV hsv = { rgb_matrix_config.hue, rgb_matrix_config.sat, 0 };
+  uint8_t count = g_last_hit_tracker.count;
+  for (uint8_t i = led_min; i < led_max; i++) {
+    hsv.v = 0;
+    point_t point = g_rgb_leds[i].point;
+    for (uint8_t j = start; j < count; j++) {
+      int16_t dx = point.x - g_last_hit_tracker.x[j];
+      int16_t dy = point.y - g_last_hit_tracker.y[j];
+      uint8_t dist = sqrt16(dx * dx + dy * dy);
+      int16_t dist2 = 16;
+      uint8_t dist3;
+      uint16_t effect = scale16by8(g_last_hit_tracker.tick[j], rgb_matrix_config.speed) + dist;
+      dx = dx < 0 ? dx * -1 : dx;
+      dy = dy < 0 ? dy * -1 : dy;
+      dx = dx * dist2 > 255 ? 255 : dx * dist2;
+      dy = dy * dist2 > 255 ? 255 : dy * dist2;
+      dist3 = dx > dy ? dy : dx;
+      effect += dist3;
+      if (effect > 255)
+        effect = 255;
+      hsv.v = qadd8(hsv.v, 255 - effect);
+    }
+    hsv.v = scale8(hsv.v, rgb_matrix_config.val);
+    RGB rgb = hsv_to_rgb(hsv);
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+  }
+  return led_max < DRIVER_LED_TOTAL;
+}
+
+bool rgb_matrix_solid_reactive_multicross(effect_params_t* params) {
+  return rgb_matrix_solid_reactive_multicross_range(0, params);
+}
+
+bool rgb_matrix_solid_reactive_cross(effect_params_t* params) {
+  return rgb_matrix_solid_reactive_multicross_range(qsub8(g_last_hit_tracker.count, 1), params);
+}
+
+#endif // !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS) || !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS)
+#endif // RGB_MATRIX_KEYREACTIVE_ENABLED
diff --git a/quantum/rgb_matrix_animations/solid_reactive_nexus.h b/quantum/rgb_matrix_animations/solid_reactive_nexus.h
new file mode 100644
index 000000000..8b4a139dc
--- /dev/null
+++ b/quantum/rgb_matrix_animations/solid_reactive_nexus.h
@@ -0,0 +1,48 @@
+#pragma once
+#ifdef RGB_MATRIX_KEYREACTIVE_ENABLED
+#if !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS) || !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS)
+
+extern const rgb_led g_rgb_leds[DRIVER_LED_TOTAL];
+extern rgb_config_t rgb_matrix_config;
+extern last_hit_t g_last_hit_tracker;
+
+static bool rgb_matrix_solid_reactive_multinexus_range(uint8_t start, effect_params_t* params) {
+  RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+  HSV hsv = { rgb_matrix_config.hue, rgb_matrix_config.sat, 0 };
+  uint8_t count = g_last_hit_tracker.count;
+  for (uint8_t i = led_min; i < led_max; i++) {
+    hsv.v = 0;
+    point_t point = g_rgb_leds[i].point;
+    for (uint8_t j = start; j < count; j++) {
+      int16_t dx = point.x - g_last_hit_tracker.x[j];
+      int16_t dy = point.y - g_last_hit_tracker.y[j];
+      uint8_t dist = sqrt16(dx * dx + dy * dy);
+      int16_t dist2 = 8;
+      uint16_t effect = scale16by8(g_last_hit_tracker.tick[j], rgb_matrix_config.speed) - dist;
+      if (effect > 255)
+        effect = 255;
+      if (dist > 72)
+        effect = 255;
+      if ((dx > dist2 || dx < -dist2) && (dy > dist2 || dy < -dist2))
+        effect = 255;
+      hsv.v = qadd8(hsv.v, 255 - effect);
+      hsv.h = rgb_matrix_config.hue + dy / 4;
+    }
+    hsv.v = scale8(hsv.v, rgb_matrix_config.val);
+    RGB rgb = hsv_to_rgb(hsv);
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+  }
+  return led_max < DRIVER_LED_TOTAL;
+}
+
+bool rgb_matrix_solid_reactive_multinexus(effect_params_t* params) {
+  return rgb_matrix_solid_reactive_multinexus_range(0, params);
+}
+
+bool rgb_matrix_solid_reactive_nexus(effect_params_t* params) {
+  return rgb_matrix_solid_reactive_multinexus_range(qsub8(g_last_hit_tracker.count, 1), params);
+}
+
+#endif // !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS) || !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS)
+#endif // RGB_MATRIX_KEYREACTIVE_ENABLED
diff --git a/quantum/rgb_matrix_animations/solid_reactive_wide.h b/quantum/rgb_matrix_animations/solid_reactive_wide.h
new file mode 100644
index 000000000..abb01892e
--- /dev/null
+++ b/quantum/rgb_matrix_animations/solid_reactive_wide.h
@@ -0,0 +1,42 @@
+#pragma once
+#ifdef RGB_MATRIX_KEYREACTIVE_ENABLED
+#if !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE) || !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE)
+
+extern const rgb_led g_rgb_leds[DRIVER_LED_TOTAL];
+extern rgb_config_t rgb_matrix_config;
+extern last_hit_t g_last_hit_tracker;
+
+static bool rgb_matrix_solid_reactive_multiwide_range(uint8_t start, effect_params_t* params) {
+  RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+  HSV hsv = { rgb_matrix_config.hue, rgb_matrix_config.sat, 0 };
+  uint8_t count = g_last_hit_tracker.count;
+  for (uint8_t i = led_min; i < led_max; i++) {
+    hsv.v = 0;
+    point_t point = g_rgb_leds[i].point;
+    for (uint8_t j = start; j < count; j++) {
+      int16_t dx = point.x - g_last_hit_tracker.x[j];
+      int16_t dy = point.y - g_last_hit_tracker.y[j];
+      uint8_t dist = sqrt16(dx * dx + dy * dy);
+      uint16_t effect = scale16by8(g_last_hit_tracker.tick[j], rgb_matrix_config.speed) + dist * 5;
+      if (effect > 255)
+        effect = 255;
+      hsv.v = qadd8(hsv.v, 255 - effect);
+    }
+    hsv.v = scale8(hsv.v, rgb_matrix_config.val);
+    RGB rgb = hsv_to_rgb(hsv);
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+  }
+  return led_max < DRIVER_LED_TOTAL;
+}
+
+bool rgb_matrix_solid_reactive_multiwide(effect_params_t* params) {
+  return rgb_matrix_solid_reactive_multiwide_range(0, params);
+}
+
+bool rgb_matrix_solid_reactive_wide(effect_params_t* params) {
+  return rgb_matrix_solid_reactive_multiwide_range(qsub8(g_last_hit_tracker.count, 1), params);
+}
+
+#endif // !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE) || !defined(DISABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE)
+#endif // RGB_MATRIX_KEYREACTIVE_ENABLED