ws2812-achterbahn/fx_flash.cpp

60 lines
1.1 KiB
C++

#include "fx_flash.h"
#include "effect.h"
#define FLASHTIME 10 //in ms
FX_Flash::FX_Flash(int numpixels,Adafruit_NeoPixel *strip,uint32_t flashcolor)
{
_numpixels=numpixels;
_strip=strip;
_flashcolor=flashcolor;
_starttime=millis();
}
FX_Flash::FX_Flash()
{
}
void FX_Flash::updateRoutine(float updatedelayms)
{
}
void FX_Flash::updateGraphics()
{
for(int i=0;i<_numpixels;i++){
uint8_t _r = _flashcolor >> 16;
uint8_t _g = _flashcolor >> 8;
uint8_t _b = _flashcolor;
uint32_t _pxcolor=_strip->getPixelColor(i); //get current color of that pixel
uint8_t _pxr = _pxcolor >> 16;
uint8_t _pxg = _pxcolor >> 8;
uint8_t _pxb = _pxcolor;
uint16_t _tmpr=_pxr+_r; //add colors
uint16_t _tmpg=_pxg+_g;
uint16_t _tmpb=_pxb+_b;
if (_tmpr>255){ //clamp
_tmpr=255;
}
if (_tmpg>255){
_tmpg=255;
}
if (_tmpb>255){
_tmpb=255;
}
_strip->setPixelColor(i,_tmpr,_tmpg,_tmpb); //draw pixel
}
}
bool FX_Flash::active()
{
if (millis()-_starttime>FLASHTIME){
return false;
}
return true;
}