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timer.cpp
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timer.cpp
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#include "core.h"
/* Defines */
enum STATE_T : uint8_t {
STATE_SETTING = 0,
STATE_ACTIVE,
STATE_PAUSED,
STATE_FINISHED,
};
#define MINUTES_MAX 9
#define SECONDS_MAX 59
#define FRAMES_MAX 29
/* Local Functions */
static void onSetting(void);
static void controlSetting(void);
static void controlActive(void);
static void controlPaused(void);
static void controlFinished(void);
static uint8_t convertPosition(uint8_t n);
static void setSettingPixels(uint8_t m);
static void setTimerPixels(void);
static void setTimerString(uint8_t m, uint8_t s, bool isDot);
/* Local Functions (macros) */
#define callControlFunc(n) ((void (*)(void)) pgm_read_ptr(controlFuncTable + n))()
/* Local Constants */
PROGMEM static void(*const controlFuncTable[])(void) = {
controlSetting, controlActive, controlPaused, controlFinished
};
/* Local Variables */
static STATE_T state;
static uint8_t settingMinutes, minutes, seconds, frames;
static char timeString[5];
/*---------------------------------------------------------------------------*/
void initTimer(void)
{
settingMinutes = 3;
onSetting();
}
void updateTimer(void)
{
callControlFunc(state);
}
/*---------------------------------------------------------------------------*/
static void onSetting(void)
{
setString(0, 22, F("SETTING"));
setString(1, 22, timeString);
setSettingPixels(settingMinutes);
setTimerString(settingMinutes, 0, true);
state = STATE_SETTING;
isInvalid = true;
}
static void controlSetting(void)
{
if (isButtonDown(RIGHT_BUTTON)) {
minutes = settingMinutes;
seconds = 0;
frames = FRAMES_MAX;
state = STATE_ACTIVE;
clearString(0);
setTimerPixels();
isInvalid = true;
} else if (isButtonDown(LEFT_BUTTON)) {
if (++settingMinutes > 9) settingMinutes = 1;
setSettingPixels(settingMinutes);
setTimerString(settingMinutes, 0, true);
isInvalid = true;
}
}
static void controlActive(void)
{
if (frames-- == 0) {
if (seconds-- == 0) {
minutes--;
seconds = SECONDS_MAX;
}
if (minutes == 0 && seconds == 0) {
state = STATE_FINISHED;
}
frames = FRAMES_MAX;
}
if (frames == FRAMES_MAX || frames == 14) {
setTimerString(minutes, seconds, (frames >= 15));
isInvalid = true;
}
setTimerPixels();
if (state != STATE_FINISHED && isButtonDown(RIGHT_BUTTON)) {
state = STATE_PAUSED;
setString(0, 28, F("PAUSED"));
setTimerString(minutes, seconds, true);
isInvalid = true;
}
}
static void controlPaused(void)
{
if (isButtonDown(RIGHT_BUTTON)) {
state = STATE_ACTIVE;
clearString(0);
setTimerString(minutes, seconds, (frames >= 15));
isInvalid = true;
} else if (isButtonDown(LEFT_BUTTON)) {
onSetting();
}
}
static void controlFinished(void)
{
if (isButtonDown(LEFT_BUTTON | RIGHT_BUTTON)) {
onSetting();
} else {
if (frames-- == 0) {
frames = FRAMES_MAX;
setString(1, 22, timeString);
isInvalid = true;
} else if (frames == 14) {
clearString(1);
isInvalid = true;
}
uint8_t v = ((frames < 15) ? frames : (43 - frames)) * 8;
fillNeoPixelsRGB(v, v, v);
}
}
static uint8_t convertPosition(uint8_t n)
{
return (26 - n) & 0x1F;
}
static void setSettingPixels(uint8_t m)
{
fillNeoPixels(digitColor(m));
uint32_t black = rgb2Color(0, 0, 0);
setNeoPixel(27, black);
setNeoPixel(28, black);
}
static void setTimerPixels(void)
{
uint8_t lastFrame = (frames == FRAMES_MAX) ? 0 : frames + 1;
setNeoPixel(convertPosition(lastFrame),
digitColor(minutes + (lastFrame < seconds / 2)));
setNeoPixelRGB(convertPosition(frames), 255, 255, 255);
}
static void setTimerString(uint8_t m, uint8_t s, bool isDot)
{
timeString[0] = '0' + m;
timeString[1] = (isDot) ? ':' : ' ';
timeString[2] = '0' + s / 10;
timeString[3] = '0' + s % 10;
timeString[4] = '\0';
}