Renamed to momentum; moved implementation into dedicated files

common_features.mk

@@ -105,6 +105,7 @@ endif
 ifeq ($(strip $(RGBLIGHT_ENABLE)), yes)
     OPT_DEFS += -DRGBLIGHT_ENABLE
     SRC += $(QUANTUM_DIR)/rgblight.c
+    SRC += $(QUANTUM_DIR)/momentum.c
     CIE1931_CURVE = yes
     LED_BREATHING_TABLE = yes
     ifeq ($(strip $(RGBLIGHT_CUSTOM_DRIVER)), yes)

quantum/momentum.c

@@ -0,0 +1,32 @@
+#include "momentum.h"
+
+#ifndef MIN
+#define MIN(a,b) (((a)<(b))?(a):(b))
+#endif
+#ifndef MAX
+#define MAX(a,b) (((a)>(b))?(a):(b))
+#endif
+
+#define TYPING_SPEED_MAX_VALUE 200
+uint8_t typing_speed = 0;
+
+void momentum_accelerate() {
+    if (typing_speed < TYPING_SPEED_MAX_VALUE) typing_speed += (TYPING_SPEED_MAX_VALUE / 100);
+}
+
+void momentum_decay_task() {
+  static uint16_t decay_timer = 0;
+
+  if (timer_elapsed(decay_timer) > 500 || decay_timer == 0) {
+    if (typing_speed > 0) typing_speed -= 1;
+    //Decay a little faster at half of max speed
+    if (typing_speed > TYPING_SPEED_MAX_VALUE / 2) typing_speed -= 1;
+    //Decay even faster at 3/4 of max speed
+    if (typing_speed > TYPING_SPEED_MAX_VALUE / 4 * 3) typing_speed -= 3;
+    decay_timer = timer_read();
+  }
+}
+
+uint8_t match_momentum(uint8_t minValue, uint8_t maxValue) {
+  return MAX(minValue, maxValue - (maxValue - minValue) * ((float)typing_speed / TYPING_SPEED_MAX_VALUE));
+}

quantum/momentum.h

@@ -0,0 +1,11 @@
+#ifndef MOMENTUM_H
+#define MOMENTUM_H
+
+#include <stdint.h>
+#include "timer.h"
+
+void momentum_accelerate(void);
+void momentum_decay_task(void);
+uint8_t match_momentum(uint8_t minValue, uint8_t maxValue);
+
+#endif

quantum/quantum.c

@@ -197,7 +197,7 @@ bool process_record_quantum(keyrecord_t *record) {
   uint16_t keycode;
 
   #ifdef RGBLIGHT_ENABLE
-    if (typing_speed < TYPING_SPEED_MAX_VALUE) typing_speed += (TYPING_SPEED_MAX_VALUE / 100);
+    momentum_accelerate();
   #endif
 
   #if !defined(NO_ACTION_LAYER) && defined(PREVENT_STUCK_MODIFIERS)

quantum/rgblight.c

@@ -568,29 +568,11 @@ void rgblight_show_solid_color(uint8_t r, uint8_t g, uint8_t b) {
   rgblight_setrgb(r, g, b);
 }
 
-uint8_t typing_speed = 0;
-void typing_speed_decay_task() {
-  static uint16_t decay_timer = 0;
-
-  if (timer_elapsed(decay_timer) > 500 || decay_timer == 0) {
-    if (typing_speed > 0) typing_speed -= 1;
-    //Decay a little faster at half of max speed
-    if (typing_speed > TYPING_SPEED_MAX_VALUE / 2) typing_speed -= 1;
-    //Decay even faster at 3/4 of max speed
-    if (typing_speed > TYPING_SPEED_MAX_VALUE / 4 * 3) typing_speed -= 3;
-    decay_timer = timer_read();
-  }
-}
-
-uint8_t typing_speed_matched_interval(uint8_t minValue, uint8_t maxValue) {
-  return MAX(minValue, maxValue - (maxValue - minValue) * ((float)typing_speed / TYPING_SPEED_MAX_VALUE));
-}
-
 void rgblight_task(void) {
 
   if (rgblight_timer_enabled) {
 
-    typing_speed_decay_task();    
+    momentum_decay_task();    
 
     // mode = 1, static light, do nothing here
     if (rgblight_config.mode >= 2 && rgblight_config.mode <= 5) {
@@ -626,7 +608,7 @@ void rgblight_effect_breathing(uint8_t interval) {
   static uint16_t last_timer = 0;
   float val;
 
-  if (timer_elapsed(last_timer) < typing_speed_matched_interval(1, 100)) {
+  if (timer_elapsed(last_timer) < match_momentum(1, 100)) {
     return;
   }
   last_timer = timer_read();
@@ -641,7 +623,7 @@ void rgblight_effect_rainbow_mood(uint8_t interval) {
   static uint16_t current_hue = 0;
   static uint16_t last_timer = 0;
 
-  if (timer_elapsed(last_timer) < typing_speed_matched_interval(5, 100)) {
+  if (timer_elapsed(last_timer) < match_momentum(5, 100)) {
     return;
   }
   last_timer = timer_read();
@@ -654,7 +636,7 @@ void rgblight_effect_rainbow_swirl(uint8_t interval) {
   uint16_t hue;
   uint8_t i;
 
-  if (timer_elapsed(last_timer) < typing_speed_matched_interval(1, 100)) {
+  if (timer_elapsed(last_timer) < match_momentum(1, 100)) {
     return;
   }
   last_timer = timer_read();
@@ -683,7 +665,7 @@ void rgblight_effect_snake(uint8_t interval) {
   if (interval % 2) {
     increment = -1;
   }
-  if (timer_elapsed(last_timer) < typing_speed_matched_interval(1, 200)) {
+  if (timer_elapsed(last_timer) < match_momentum(1, 200)) {
     return;
   }
   last_timer = timer_read();
@@ -714,7 +696,7 @@ void rgblight_effect_snake(uint8_t interval) {
 }
 void rgblight_effect_knight(uint8_t interval) {
   static uint16_t last_timer = 0;
-  if (timer_elapsed(last_timer) < typing_speed_matched_interval(5, 100)) {
+  if (timer_elapsed(last_timer) < match_momentum(5, 100)) {
     return;
   }
   last_timer = timer_read();

quantum/rgblight.h

@@ -80,6 +80,8 @@
     #include <avr/pgmspace.h>
 #endif
 
+#include "momentum.h"
+
 extern LED_TYPE led[RGBLED_NUM];
 
 extern const uint8_t RGBLED_BREATHING_INTERVALS[4] PROGMEM;
@@ -89,10 +91,6 @@ extern const uint8_t RGBLED_SNAKE_INTERVALS[3] PROGMEM;
 extern const uint8_t RGBLED_KNIGHT_INTERVALS[3] PROGMEM;
 extern const uint16_t RGBLED_RGBTEST_INTERVALS[1] PROGMEM;
 
-//Used in rgblight.c and quantum.c to match RGB animation to typing speed
-extern uint8_t typing_speed;
-#define TYPING_SPEED_MAX_VALUE 200
-
 typedef union {
   uint32_t raw;
   struct {
@@ -172,7 +170,4 @@ void rgblight_effect_christmas(void);
 void rgblight_effect_rgbtest(void);
 void rgblight_effect_alternating(void);
 
-void typing_speed_decay_task(void);
-uint8_t typing_speed_matched_interval(uint8_t minValue, uint8_t maxValue);
-
 #endif