- #include "velocikey.h"
- #include "timer.h"
- #include "eeconfig.h"
- #include "eeprom.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;
-
- bool velocikey_enabled(void) { return eeprom_read_byte(EECONFIG_VELOCIKEY) == 1; }
-
- void velocikey_toggle(void) {
- if (velocikey_enabled())
- eeprom_update_byte(EECONFIG_VELOCIKEY, 0);
- else
- eeprom_update_byte(EECONFIG_VELOCIKEY, 1);
- }
-
- void velocikey_accelerate(void) {
- if (typing_speed < TYPING_SPEED_MAX_VALUE) typing_speed += (TYPING_SPEED_MAX_VALUE / 100);
- }
-
- void velocikey_decelerate(void) {
- 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 -= 2;
- decay_timer = timer_read();
- }
- }
-
- uint8_t velocikey_match_speed(uint8_t minValue, uint8_t maxValue) { return MAX(minValue, maxValue - (maxValue - minValue) * ((float)typing_speed / TYPING_SPEED_MAX_VALUE)); }
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