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Merge pull request #527 from fishbone-git/starburst 

add multi fireworks starburst effect
pull/540/head
Aircoookie 2020-01-01 01:17:59 +01:00 zatwierdzone przez GitHub
rodzic 41eab27f20 a6c7cc7b41
commit 43c5fea782
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3 zmienionych plików z 123 dodań i 5 usunięć
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115
wled00/FX.cpp
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@ -2437,3 +2437,118 @@ uint16_t WS2812FX::mode_candle()
return FRAMETIME;
}
/*
/ Fireworks in starburst effect
/ based on the video: https://www.reddit.com/r/arduino/comments/c3sd46/i_made_this_fireworks_effect_for_my_led_strips/
/ Speed sets frequency of new starbursts, intensity is the intensity of the burst
*/
#define STARBURST_MAX_FRAG 12
typedef struct particle {
CRGB color;
uint32_t birth =0;
uint32_t last =0;
float vel =0;
uint16_t pos =-1;
float fragment[STARBURST_MAX_FRAG];
} star;
uint16_t WS2812FX::mode_starburst(void) {
uint32_t it = millis();
const uint8_t numStars = 15;
static star stars[numStars];
float maxSpeed = 375.0f; // Max velocity
float particleIgnition = 250.0f; // How long to "flash"
float particleFadeTime = 1500.0f; // Fade out time
for (int j = 0; j < numStars; j++)
{
// speed to adjust chance of a burst, max is nearly always.
if (random8((144-(SEGMENT.speed >> 1))) == 0 && stars[j].birth == 0)
{
// Pick a random color and location.
uint16_t startPos = random16(SEGLEN-1);
float multiplier = (float)(random8())/255.0 * 1.0;
stars[j].color = col_to_crgb(color_wheel(random8()));
stars[j].pos = startPos;
stars[j].vel = maxSpeed * (float)(random8())/255.0 * multiplier;
stars[j].birth = it;
stars[j].last = it;
// more fragments means larger burst effect
int num = random8(3,6 + (SEGMENT.intensity >> 5));
for (int i=0; i < STARBURST_MAX_FRAG; i++) {
if (i < num) stars[j].fragment[i] = startPos;
else stars[j].fragment[i] = -1;
}
}
}
fill(SEGCOLOR(1));
for (int j=0; j<numStars; j++)
{
if (stars[j].birth != 0) {
float dt = (it-stars[j].last)/1000.0;
for (int i=0; i < STARBURST_MAX_FRAG; i++) {
int var = i >> 1;
if (stars[j].fragment[i] > 0) {
//all fragments travel right, will be mirrored on other side
stars[j].fragment[i] += stars[j].vel * dt * (float)var/3.0;
}
}
stars[j].last = it;
stars[j].vel -= 3*stars[j].vel*dt;
}
CRGB c = stars[j].color;
// If the star is brand new, it flashes white briefly.
// Otherwise it just fades over time.
float fade = 0.0f;
float age = it-stars[j].birth;
if (age < particleIgnition) {
c = col_to_crgb(color_blend(WHITE, crgb_to_col(c), 254.5f*((age / particleIgnition))));
} else {
// Figure out how much to fade and shrink the star based on
// its age relative to its lifetime
if (age > particleIgnition + particleFadeTime) {
fade = 1.0f; // Black hole, all faded out
stars[j].birth = 0;
c = col_to_crgb(SEGCOLOR(1));
} else {
age -= particleIgnition;
fade = (age / particleFadeTime); // Fading star
byte f = 254.5f*fade;
c = col_to_crgb(color_blend(crgb_to_col(c), SEGCOLOR(1), f));
}
}
float particleSize = (1.0 - fade) * 2;
for (uint8_t index=0; index < STARBURST_MAX_FRAG*2; index++) {
bool mirrored = index & 0x1;
uint8_t i = index >> 1;
if (stars[j].fragment[i] > 0) {
float loc = stars[j].fragment[i];
if (mirrored) loc -= (loc-stars[j].pos)*2;
int start = loc - particleSize;
int end = loc + particleSize;
if (start < 0) start = 0;
if (start == end) end++;
if (end > SEGLEN) end = SEGLEN;
for (int p = start; p < end; p++) {
setPixelColor(SEGMENT.start+p, c.r, c.g, c.b);
}
}
}
}
return FRAMETIME;
}

11
wled00/FX.h
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@ -91,7 +91,7 @@
#define IS_REVERSE ((SEGMENT.options & REVERSE ) == REVERSE )
#define IS_SELECTED ((SEGMENT.options & SELECTED) == SELECTED )
#define MODE_COUNT 89
#define MODE_COUNT 90
#define FX_MODE_STATIC 0
#define FX_MODE_BLINK 1
@ -182,6 +182,7 @@
#define FX_MODE_SPOTS_FADE 86
#define FX_MODE_GLITTER 87
#define FX_MODE_CANDLE 88
#define FX_MODE_STARBURST 89
class WS2812FX {
@ -350,6 +351,7 @@ class WS2812FX {
_mode[FX_MODE_SPOTS_FADE] = &WS2812FX::mode_spots_fade;
_mode[FX_MODE_GLITTER] = &WS2812FX::mode_glitter;
_mode[FX_MODE_CANDLE] = &WS2812FX::mode_candle;
_mode[FX_MODE_STARBURST] = &WS2812FX::mode_starburst;
_brightness = DEFAULT_BRIGHTNESS;
currentPalette = CRGBPalette16(CRGB::Black);
@ -532,7 +534,8 @@ class WS2812FX {
mode_spots(void),
mode_spots_fade(void),
mode_glitter(void),
mode_candle(void);
mode_candle(void),
mode_starburst(void);
private:
@ -607,9 +610,9 @@ const char JSON_mode_names[] PROGMEM = R"=====([
"Chase Rainbow","Chase Flash","Chase Flash Rnd","Rainbow Runner","Colorful","Traffic Light","Sweep Random","Running 2","Red & Blue","Stream",
"Scanner","Lighthouse","Fireworks","Rain","Merry Christmas","Fire Flicker","Gradient","Loading","Police","Police All",
"Two Dots","Two Areas","Circus","Halloween","Tri Chase","Tri Wipe","Tri Fade","Lightning","ICU","Multi Comet",
"Scanner Dual ","Stream 2","Oscillate","Pride 2015","Juggle","Palette","Fire 2012","Colorwaves","Bpm","Fill Noise",
"Scanner Dual","Stream 2","Oscillate","Pride 2015","Juggle","Palette","Fire 2012","Colorwaves","Bpm","Fill Noise",
"Noise 1","Noise 2","Noise 3","Noise 4","Colortwinkles","Lake","Meteor","Meteor Smooth","Railway","Ripple",
"Twinklefox","Twinklecat","Halloween Eyes","Solid Pattern","Solid Pattern Tri","Spots","Spots Fade","Glitter","Candle"
"Twinklefox","Twinklecat","Halloween Eyes","Solid Pattern","Solid Pattern Tri","Spots","Spots Fade","Glitter","Candle","Fireworks Starburst"
])=====";

2
wled00/wled00.ino
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@ -98,7 +98,7 @@
//version code in format yymmddb (b = daily build)
#define VERSION 1912311
#define VERSION 1912312
char versionString[] = "0.9.0-b2";