Merge remote-tracking branch 'origin/master' into develop

11 files changed, 535 insertions, 0 deletions

diff --git a/users/horrortroll/config.h b/users/horrortroll/config.h
new file mode 100644
index 0000000000..50bc7da537
--- /dev/null
+++ b/users/horrortroll/config.h
@@ -0,0 +1,64 @@
+/* Copyright 2023 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* Forcing to use NKRO instead 6KRO */
+#define FORCE_NKRO
+
+#define DYNAMIC_KEYMAP_LAYER_COUNT 2
+
+#if defined(__arm__)
+    #ifdef RGB_MATRIX_ENABLE
+        #define RGB_MATRIX_SOLID_REACTIVE_GRADIENT_MODE
+    #endif
+#endif
+
+#if defined(__AVR_ATmega32U4__)
+    #define NO_ACTION_ONESHOT
+
+    #ifdef RGB_MATRIX_ENABLE
+        /* RGB Matrix effect */
+        #undef ENABLE_RGB_MATRIX_GRADIENT_UP_DOWN
+        #undef ENABLE_RGB_MATRIX_GRADIENT_LEFT_RIGHT
+        #undef ENABLE_RGB_MATRIX_BAND_SAT
+        #undef ENABLE_RGB_MATRIX_BAND_VAL
+        #undef ENABLE_RGB_MATRIX_BAND_PINWHEEL_SAT
+        #undef ENABLE_RGB_MATRIX_BAND_PINWHEEL_VAL
+        #undef ENABLE_RGB_MATRIX_BAND_SPIRAL_SAT
+        #undef ENABLE_RGB_MATRIX_BAND_SPIRAL_VAL
+        #undef ENABLE_RGB_MATRIX_CYCLE_UP_DOWN
+        #undef ENABLE_RGB_MATRIX_RAINBOW_MOVING_CHEVRON
+        #undef ENABLE_RGB_MATRIX_CYCLE_OUT_IN_DUAL
+        #undef ENABLE_RGB_MATRIX_DUAL_BEACON
+        #undef ENABLE_RGB_MATRIX_RAINBOW_BEACON
+        #undef ENABLE_RGB_MATRIX_RAINBOW_PINWHEELS
+        #undef ENABLE_RGB_MATRIX_RAINDROPS
+        #undef ENABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS
+        #undef ENABLE_RGB_MATRIX_HUE_WAVE
+        #undef ENABLE_RGB_MATRIX_PIXEL_RAIN
+
+        #undef ENABLE_RGB_MATRIX_SOLID_REACTIVE
+        #undef ENABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE
+        #undef ENABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE
+        #undef ENABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS
+        #undef ENABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS
+        #undef ENABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS
+        #undef ENABLE_RGB_MATRIX_SPLASH
+        #undef ENABLE_RGB_MATRIX_SOLID_SPLASH
+        #undef ENABLE_RGB_MATRIX_SOLID_MULTISPLASH
+    #endif
+#endif
diff --git a/users/horrortroll/horrortroll.c b/users/horrortroll/horrortroll.c
new file mode 100644
index 0000000000..1152b2cc9d
--- /dev/null
+++ b/users/horrortroll/horrortroll.c
@@ -0,0 +1,165 @@
+/* Copyright 2023 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "horrortroll.h"
+
+#include "rgb_matrix.h"
+
+// For CUSTOM_GRADIENT
+HSV gradient_0          = {205, 250, 255};
+HSV gradient_100        = {140, 215, 125};
+bool reflected_gradient = false;
+uint8_t gp_i            = 0;
+
+typedef struct {
+    HSV gradient_0;
+    HSV gradient_1;
+    bool reflected;
+} CUSTOM_PRESETS;
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    uint8_t color_adj_step = 5;
+
+    CUSTOM_PRESETS gradient_presets[] = {
+    {{41 , 255, 255}, {233, 245, 255}, false },
+    {{45 , 245, 155}, {160, 255,  80}, false },
+    {{173, 245,  40}, {41 , 255, 205}, true  },
+    {{32 , 255, 165}, {217, 185,  70}, false },
+    {{240, 255, 145}, {115, 255, 245}, true  },
+    {{118, 255, 255}, {242, 255, 255}, false },
+    {{212,  0 ,   0}, {223, 235, 165}, true  },
+    {{205, 250, 255}, {140, 215, 125}, false },
+    };
+
+    uint8_t gp_length = sizeof(gradient_presets)/sizeof(gradient_presets[0]);
+
+    switch (keycode) {
+        case G1_HUI:
+            if (record->event.pressed) {
+                gradient_0.h += color_adj_step;
+                dprintf("Gradient 0 HSV: %d, %d, %d\n", gradient_0.h, gradient_0.s, gradient_0.v);
+            }
+            return false;
+        case G1_HUD:
+            if (record->event.pressed) {
+                gradient_0.h -= color_adj_step;
+                dprintf("Gradient 0 HSV: %d, %d, %d\n", gradient_0.h, gradient_0.s, gradient_0.v);
+            }
+            return false;
+        case G1_SAI:
+            if (record->event.pressed) {
+                gradient_0.s = (gradient_0.s + color_adj_step * 2 <= 255) ? gradient_0.s + color_adj_step * 2 : 255;
+                dprintf("Gradient 0 HSV: %d, %d, %d\n", gradient_0.h, gradient_0.s, gradient_0.v);
+            }
+            return false;
+        case G1_SAD:
+            if (record->event.pressed) {
+                gradient_0.s = (gradient_0.s - color_adj_step * 2 >= 0) ? gradient_0.s - color_adj_step * 2 : 0;
+                dprintf("Gradient 0 HSV: %d, %d, %d\n", gradient_0.h, gradient_0.s, gradient_0.v);
+            }
+            return false;
+        case G1_VAI:
+            if (record->event.pressed) {
+                gradient_0.v = (gradient_0.v + color_adj_step * 2 <= 255) ? gradient_0.v + color_adj_step * 2 : 255;
+                dprintf("Gradient 0 HSV: %d, %d, %d\n", gradient_0.h, gradient_0.s, gradient_0.v);
+            }
+            return false;
+        case G1_VAD:
+            if (record->event.pressed) {
+                gradient_0.v = (gradient_0.v - color_adj_step * 2 >= 0) ? gradient_0.v - color_adj_step * 2 : 0;
+                dprintf("Gradient 0 HSV: %d, %d, %d\n", gradient_0.h, gradient_0.s, gradient_0.v);
+            }
+            return false;
+        case G2_HUI:
+            if (record->event.pressed) {
+                gradient_100.h += color_adj_step;
+                dprintf("Gradient 100 HSV: %d, %d, %d\n", gradient_100.h, gradient_100.s, gradient_100.v);
+            }
+            return false;
+        case G2_HUD:
+            if (record->event.pressed) {
+                gradient_100.h -= color_adj_step;
+                dprintf("Gradient 100 HSV: %d, %d, %d\n", gradient_100.h, gradient_100.s, gradient_100.v);
+            }
+            return false;
+        case G2_SAI:
+            if (record->event.pressed) {
+                gradient_100.s = (gradient_100.s + color_adj_step * 2 <= 255) ? gradient_100.s + color_adj_step * 2 : 255;
+                dprintf("Gradient 100 HSV: %d, %d, %d\n", gradient_100.h, gradient_100.s, gradient_100.v);
+            }
+            return false;
+        case G2_SAD:
+            if (record->event.pressed) {
+                gradient_100.s = (gradient_100.s - color_adj_step * 2 >= 0) ? gradient_100.s - color_adj_step * 2 : 0;
+                dprintf("Gradient 100 HSV: %d, %d, %d\n", gradient_100.h, gradient_100.s, gradient_100.v);
+            }
+            return false;
+        case G2_VAI:
+            if (record->event.pressed) {
+                gradient_100.v = (gradient_100.v + color_adj_step * 2 <= 255) ? gradient_100.v + color_adj_step * 2 : 255;
+                dprintf("Gradient 100 HSV: %d, %d, %d\n", gradient_100.h, gradient_100.s, gradient_100.v);
+            }
+            return false;
+        case G2_VAD:
+            if (record->event.pressed) {
+                gradient_100.v = (gradient_100.v - color_adj_step * 2 >= 0) ? gradient_100.v - color_adj_step * 2 : 0;
+                dprintf("Gradient 100 HSV: %d, %d, %d\n", gradient_100.h, gradient_100.s, gradient_100.v);
+            }
+            return false;
+        case G_PRE:
+            if (record->event.pressed) {
+                gp_i = (gp_i + gp_length ) % gp_length;
+
+                gradient_0 = gradient_presets[gp_i].gradient_0;
+                gradient_100 = gradient_presets[gp_i].gradient_1;
+                reflected_gradient = gradient_presets[gp_i].reflected;
+
+                gp_i += 1;
+            }
+            return false;
+        case REF_G:
+            if (record->event.pressed) {
+                reflected_gradient = !reflected_gradient;
+            }
+            return false;
+        case G_FLIP:
+            if (record->event.pressed) {
+                HSV temp_color = gradient_0;
+                gradient_0 = gradient_100;
+                gradient_100 = temp_color;
+            }
+            return false;
+        case RGB_C_E:
+            if (record->event.pressed) {
+                switch (rgb_matrix_get_mode()) {
+                    case RGB_MATRIX_CUSTOM_CUSTOM_GRADIENT:
+                        rgb_matrix_mode(RGB_MATRIX_CUSTOM_COOL_DIAGONAL);
+                        return false;
+                    case RGB_MATRIX_CUSTOM_COOL_DIAGONAL:
+                        rgb_matrix_mode(RGB_MATRIX_CUSTOM_FLOWER_BLOOMING);
+                        return false;
+                    case RGB_MATRIX_CUSTOM_FLOWER_BLOOMING:
+                        rgb_matrix_mode(RGB_MATRIX_CUSTOM_RANDOM_BREATH_RAINBOW);
+                        return false;
+                    default:
+                        rgb_matrix_mode(RGB_MATRIX_CUSTOM_CUSTOM_GRADIENT);
+                        return false;
+                }
+            }
+            return false;
+	}
+    return true;
+}
diff --git a/users/horrortroll/horrortroll.h b/users/horrortroll/horrortroll.h
new file mode 100644
index 0000000000..a251f74d6c
--- /dev/null
+++ b/users/horrortroll/horrortroll.h
@@ -0,0 +1,49 @@
+/* Copyright 2023 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "quantum.h"
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+
+enum layer_names {
+    _BASE,
+    _FN,
+};
+
+enum custom_keycodes {
+    //Custom Gradient control keycode
+    G1_HUI = SAFE_RANGE, //Custom gradient color 1 hue increase
+    G1_HUD,              //Custom gradient color 1 hue decrease
+    G1_SAI,              //Custom gradient color 1 saturation increase
+    G1_SAD,              //Custom gradient color 1 saturation decrease
+    G1_VAI,              //Custom gradient color 1 value increase
+    G1_VAD,              //Custom gradient color 1 value decrease
+    G2_HUI,              //Custom gradient color 2 hue increase
+    G2_HUD,              //Custom gradient color 2 hue decrease
+    G2_SAI,              //Custom gradient color 2 saturation increase
+    G2_SAD,              //Custom gradient color 2 saturation decrease
+    G2_VAI,              //Custom gradient color 2 value increase
+    G2_VAD,              //Custom gradient color 2 value decrease
+    G_PRE,               //Gradient presets
+    REF_G,               //Toggle between linear and reflected gradient
+    G_FLIP,              //Flip the gradient colors
+  
+    //Custom led effect keycode
+    RGB_C_E,             //Cycle user effect
+};
diff --git a/users/horrortroll/led/cool_diagonal.c b/users/horrortroll/led/cool_diagonal.c
new file mode 100644
index 0000000000..900130aba5
--- /dev/null
+++ b/users/horrortroll/led/cool_diagonal.c
@@ -0,0 +1,22 @@
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+static HSV COOL_DIAGONAL_math(HSV hsv, uint8_t i, uint8_t time) {
+    hsv.h = (g_led_config.point[i].x / 4) - g_led_config.point[i].y - time;
+    return hsv;
+}
+
+bool COOL_DIAGONAL(effect_params_t* params) { return effect_runner_i(params, &COOL_DIAGONAL_math); }
diff --git a/users/horrortroll/led/custom_gradient.c b/users/horrortroll/led/custom_gradient.c
new file mode 100644
index 0000000000..af6173d250
--- /dev/null
+++ b/users/horrortroll/led/custom_gradient.c
@@ -0,0 +1,74 @@
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+extern HSV gradient_0;
+extern HSV gradient_100;
+extern bool reflected_gradient;
+
+static HSV INTERPOLATE_HSV(float step, HSV gradient_0, HSV gradient_100) {
+    uint8_t cw, ccw;
+    HSV color;
+
+    cw = (gradient_0.h >= gradient_100.h) ? 255 + gradient_100.h - gradient_0.h : gradient_100.h - gradient_0.h;  // Hue range is 0 to 255.
+    ccw = (gradient_0.h >= gradient_100.h) ? gradient_0.h - gradient_100.h : 255 + gradient_0.h - gradient_100.h;
+
+    if( cw < ccw ) { // going clockwise
+        color.h = gradient_0.h + (uint8_t)(step * cw);
+    } else { // Going counter clockwise
+        color.h = gradient_0.h - (uint8_t)(step * ccw);
+    }
+
+    color.s = gradient_0.s + step * (gradient_100.s - gradient_0.s);
+
+    // Scale V with global RGB Matrix's V, so users can still control overall brightness with RGB_VAI & RGB_VAD0
+    color.v = round((gradient_0.v + step * (gradient_100.v - gradient_0.v)) * ((float)rgb_matrix_config.hsv.v / 255));
+
+    return color;
+}
+
+static HSV CUSTOM_GRADIENT_math(uint8_t led_x, uint8_t min_x, uint8_t max_x) {
+    float step = (float)led_x / (max_x - min_x);
+    float mid_gradient_pos = 0.5;
+
+    if( reflected_gradient ) {
+        if( step <= mid_gradient_pos ) {
+            return INTERPOLATE_HSV(step * (1/mid_gradient_pos), gradient_0, gradient_100);
+        } else {
+            return INTERPOLATE_HSV((step - mid_gradient_pos) * (1/(1-mid_gradient_pos)), gradient_100, gradient_0);
+        }
+
+    } else {
+        return INTERPOLATE_HSV(step, gradient_0, gradient_100);
+    }
+}
+
+static bool CUSTOM_GRADIENT(effect_params_t* params) {
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+    uint8_t min_x = 0;  // X coordinate of the left-most LED
+    uint8_t max_x = 224; // X coordinate of the right-most LED
+
+    for (uint8_t i = led_min; i < led_max; i++) {
+        RGB_MATRIX_TEST_LED_FLAGS();
+
+        HSV hsv_orig = CUSTOM_GRADIENT_math(g_led_config.point[i].x, min_x, max_x);
+        RGB rgb = hsv_to_rgb(hsv_orig);
+
+        rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+    }
+
+    return led_max < RGB_MATRIX_LED_COUNT;
+}
diff --git a/users/horrortroll/led/flower_blooming/flower_blooming.c b/users/horrortroll/led/flower_blooming/flower_blooming.c
new file mode 100644
index 0000000000..add83149cc
--- /dev/null
+++ b/users/horrortroll/led/flower_blooming/flower_blooming.c
@@ -0,0 +1,27 @@
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "led/flower_blooming/flower_blooming.h"
+
+static HSV FLOWER_BLOOMING_math(HSV hsv, uint8_t i, uint8_t time) {
+    if (g_led_config.point[i].y > k_rgb_matrix_center.y)
+        hsv.h = g_led_config.point[i].x * 3 - g_led_config.point[i].y * 3 + time;
+    else
+        hsv.h = g_led_config.point[i].x * 3 - g_led_config.point[i].y * 3 - time;
+    return hsv;
+}
+
+bool FLOWER_BLOOMING(effect_params_t* params) { return effect_runner_bloom(params, &FLOWER_BLOOMING_math); }
diff --git a/users/horrortroll/led/flower_blooming/flower_blooming.h b/users/horrortroll/led/flower_blooming/flower_blooming.h
new file mode 100644
index 0000000000..ccdaa70d97
--- /dev/null
+++ b/users/horrortroll/led/flower_blooming/flower_blooming.h
@@ -0,0 +1,36 @@
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+typedef HSV (*flower_blooming_f)(HSV hsv, uint8_t i, uint8_t time);
+
+bool effect_runner_bloom(effect_params_t* params, flower_blooming_f effect_func) {
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+    uint8_t time = scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed / 10, 1));
+    for (uint8_t i = led_min; i < led_max; i++) {
+        RGB_MATRIX_TEST_LED_FLAGS();
+        if (g_led_config.point[i].y > k_rgb_matrix_center.y) {
+            RGB bgr = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, i, time));
+            rgb_matrix_set_color(i, bgr.b, bgr.g, bgr.r);
+        } else {
+            RGB rgb = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, i, time));
+            rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+        }
+    }
+    return rgb_matrix_check_finished_leds(led_max);
+}
diff --git a/users/horrortroll/led/random_breath_rainbow.c b/users/horrortroll/led/random_breath_rainbow.c
new file mode 100644
index 0000000000..ba1ca55faf
--- /dev/null
+++ b/users/horrortroll/led/random_breath_rainbow.c
@@ -0,0 +1,55 @@
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+static uint8_t offset[RGB_MATRIX_LED_COUNT];
+
+static void doRandom_breath_rainbow(int i, effect_params_t* params) {
+    if (!HAS_ANY_FLAGS(g_led_config.flags[i], params->flags)) return;
+    uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 6);
+
+    if (rand() * 50 == 1) {
+        if (rand() * 2 == 1) {
+            offset[i]++;
+        }
+        else {
+            offset[i]--;
+        }
+    }
+
+    //float val = (((float)sin8(time + offset[i]) / 256)/2.1) + .05;
+    HSV hsv = {0, 255, 255};
+    hsv.h = scale16by8(g_rgb_timer + offset[i], rgb_matrix_config.speed / 4) + (offset[i]*2);
+    hsv.v = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
+    RGB rgb = rgb_matrix_hsv_to_rgb(hsv);
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+}
+
+bool RANDOM_BREATH_RAINBOW(effect_params_t* params) {
+    
+    if (!params->init) {
+        // Change one LED every tick, make sure speed is not 0
+        doRandom_breath_rainbow(rand() % RGB_MATRIX_LED_COUNT, params);
+        return false;
+    }
+	
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+    for (uint8_t i = led_min; i < led_max; i++) {
+        doRandom_breath_rainbow(i, params);
+    }
+
+    return led_max < RGB_MATRIX_LED_COUNT;
+}
diff --git a/users/horrortroll/readme.md b/users/horrortroll/readme.md
new file mode 100644
index 0000000000..420c9b0986
--- /dev/null
+++ b/users/horrortroll/readme.md
@@ -0,0 +1,24 @@
+/* Copyright 2023 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+# My personal keymap with custom LED
+
+### Custom LED effect list:
+
+- Custom gradient ([ported from SirTimmyTimbit code](https://github.com/SirTimmyTimbit/customizable-gradient-effect-for-drop-alt))
+- Cool diagonal ([ported from pleasuretek code](https://github.com/pleasuretek/qmk_firmware))
+- Flower Blooming
+- Random breath rainbow ([based from daed code](https://github.com/daed/qmk_firmware/blob/master/keyboards/massdrop/alt/keymaps/daed) and modify by me)
diff --git a/users/horrortroll/rgb_matrix_user.inc b/users/horrortroll/rgb_matrix_user.inc
new file mode 100644
index 0000000000..08c608dc44
--- /dev/null
+++ b/users/horrortroll/rgb_matrix_user.inc
@@ -0,0 +1,13 @@
+RGB_MATRIX_EFFECT(CUSTOM_GRADIENT)
+RGB_MATRIX_EFFECT(COOL_DIAGONAL)
+RGB_MATRIX_EFFECT(FLOWER_BLOOMING)
+RGB_MATRIX_EFFECT(RANDOM_BREATH_RAINBOW)
+
+#ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+
+#include "led/custom_gradient.c"
+#include "led/cool_diagonal.c"
+#include "led/flower_blooming/flower_blooming.c"
+#include "led/random_breath_rainbow.c"
+
+#endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
diff --git a/users/horrortroll/rules.mk b/users/horrortroll/rules.mk
new file mode 100644
index 0000000000..579f5fd38b
--- /dev/null
+++ b/users/horrortroll/rules.mk
@@ -0,0 +1,6 @@
+VIA_ENABLE = yes
+RGB_MATRIX_CUSTOM_USER = yes
+
+ifeq ($(strip $(RGB_MATRIX_ENABLE)), yes)
+    SRC += $(USER_PATH)/horrortroll.c
+endif