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January 30, 2023 23:06
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Genuary2023 30: 'Stargate' with rotation.
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/* | |
____ __ __ __ ___ _ | |
/ __/__/ /_ _____ ________/ /__ / |/ /__ _______ _(_)__ | |
/ _// _ / // / _ `/ __/ _ / _ \ / /|_/ / _ \/ __/ _ `/ (_-< | |
/___/\_,_/\_,_/\_,_/_/ \_,_/\___/ /_/ /_/\___/_/ \_,_/_/___/ | |
Genuary 2023! 30 | |
* by Eduardo Morais 2023 - www.eduardomorais.pt | |
*/ | |
// config | |
int $appWinWidth = 1024; | |
int $appWinHeight = 1024; | |
color $appWinBG = #110D92; | |
color $appDefStroke = #FFFFFF; | |
int $saveFrameNum = 0; // 0 to deactivate | |
int $saveFrameOffset = 150; // wait before start recording | |
// constants | |
int MAXRAD = 96, SPREAD = 8; | |
int MAXSTROKE = 8; | |
int MAXPETALS = 12, MAXSIDES = 16; | |
float MAXSPD = 8, MAXSCALE = 5, MOUSEF = 8, JITTER = 0.25, ROTSPD = 0.01; | |
int FLOWER_NUM = 64, POLY_NUM = 32, STAR_NUM = 8, POINT_NUM = 600; | |
// internal | |
int SHAPE_POLYGON = 0; | |
int SHAPE_FLOWER = 1; | |
int SHAPE_STAR = 2; | |
int SHAPE_POINT = 3; | |
// globals | |
Shape[] flowers; | |
Shape[] polys; | |
Shape[] stars; | |
Shape[] points; | |
int maxRad, minRad; | |
float mx, my, $rot = 0; | |
PGraphics $fr; | |
/* | |
SETTINGS & SETUP | |
*/ | |
void settings() { | |
// brute MS Surface display density fix: | |
size($appWinWidth / displayDensity(), $appWinHeight / displayDensity()); | |
MAXRAD/=displayDensity(); | |
MAXSTROKE/=displayDensity(); | |
} | |
color fgcolor(int hs, int he) { | |
colorMode(HSB, 360, 100, 100); | |
return color(random(hs, he), random(50, 100), random(50, 100)); | |
} | |
PVector startpos(int spread) { | |
return new PVector(int(random(-width/spread,width/spread)), int(random(-height/spread,height/spread))); | |
} | |
void setup() { | |
colorMode(HSB, 360, 100, 100); | |
$appWinBG = color(random(180, 210), random(70, 100), 16); | |
$fr = createGraphics(width,height/2); | |
background($appWinBG); | |
noFill(); | |
//noCursor(); | |
frameRate(30); | |
flowers = new Shape[FLOWER_NUM]; | |
polys = new Shape[POLY_NUM]; | |
stars = new Shape[STAR_NUM]; | |
points = new Shape[POINT_NUM]; | |
colorMode(HSB, 360, 100, 100); | |
for (int i=0; i<FLOWER_NUM; i++) { | |
flowers[i] = new Shape( | |
SHAPE_FLOWER, | |
MAXRAD / 10, random(MAXRAD / 8,MAXRAD), // radius | |
int(random(2, random(MAXPETALS/2, MAXPETALS))), // petals | |
random(-PI, PI), // st ang | |
fgcolor(-30, 60), int(random(2, MAXSTROKE)) // color, stroke | |
); | |
} | |
for (int i=0; i<STAR_NUM; i++) { | |
stars[i] = new Shape( | |
SHAPE_STAR, | |
MAXRAD / 16, random(MAXRAD / 16,MAXRAD/4), // radius | |
int(random(2, random(MAXPETALS/2, MAXPETALS))), // POINTS | |
random(-PI, PI), // st ang | |
fgcolor(300, 360), int(random(2, MAXSTROKE)) // color, stroke | |
); | |
} | |
for (int i=0; i<POLY_NUM; i++) { | |
polys[i] = new Shape( | |
SHAPE_POLYGON, | |
MAXRAD / 8, random(MAXRAD / 8,MAXRAD), // radius | |
int(random(3, random(MAXSIDES/2, MAXSIDES))), // sides | |
random(-PI, PI), // st ang | |
fgcolor(210, 270), int(random(2, MAXSTROKE)) // color, stroke | |
); | |
} | |
for (int i=0; i<POINT_NUM; i++) { | |
points[i] = new Shape( | |
SHAPE_POINT, | |
MAXRAD / 8, random(MAXRAD / 4,MAXRAD), // radius | |
int(random(3, random(MAXSIDES/2, MAXSIDES))), // sides | |
random(-PI, PI), // st ang | |
fgcolor(180, 210), 1 // color, stroke | |
); | |
} | |
} | |
/* | |
DRAW | |
*/ | |
void draw() { | |
$fr.beginDraw(); | |
windowBlur($fr, $appWinBG, 32); | |
// mx = (pmouseX + mouseX)/2; | |
// my = (pmouseY + mouseY)/2; | |
mx = $fr.width/2; | |
my = $fr.height/2; | |
$rot+=ROTSPD; | |
$fr.blendMode(SCREEN); | |
for (int i=0; i<points.length; i++) { | |
points[i].draw($fr, mx,my,128); | |
} | |
$fr.blendMode(SCREEN); | |
for (int i=0; i<polys.length; i++) { | |
polys[i].draw($fr, mx,my,16); | |
} | |
$fr.blendMode(ADD); | |
for (int i=0; i<flowers.length; i++) { | |
flowers[i].draw($fr, mx,my,8); | |
} | |
$fr.blendMode(SCREEN); | |
for (int i=0; i<stars.length; i++) { | |
stars[i].draw($fr, mx,my,16); | |
} | |
$fr.endDraw(); | |
rotate(PI/2); | |
translate(0,-height); | |
image($fr,0,0); | |
scale(1,-1); | |
image($fr,0,-height); | |
if ($saveFrameNum > 0 && | |
frameCount > $saveFrameOffset && frameCount - $saveFrameOffset <= $saveFrameNum) { | |
saveFrame("frames/#####.tga"); | |
print("|"); | |
} | |
} | |
/* polygons */ | |
class Shape { | |
PVector position; | |
float minrad, maxrad, rad, rot, avel, sc, svel; | |
int shape, strokew, sides; | |
color col; | |
Shape(int s, float mird, float mxrd, int p, float sr, color c, int sw) { | |
position = startpos(SPREAD); | |
minrad = mird; | |
maxrad = mxrd; | |
rad = random(minrad, maxrad); | |
rot = sr; | |
sc = 0; | |
svel = map(rad, 0, MAXRAD, 0, MAXSPD*2); | |
avel = sr >=0 ? svel/(MAXSPD*10) : 0 - svel/(MAXSPD*10); | |
sides = p; | |
col = c; | |
strokew = sw; | |
shape = s; | |
} | |
void draw(PGraphics fr, float ox, float oy, int opacity) { | |
rot+=avel/10; | |
position.x+=random(-JITTER, JITTER); | |
position.y+=random(-JITTER, JITTER); | |
sc+=svel/100; | |
if (sc > MAXSCALE/2) opacity = int(map(sc, MAXSCALE/2, MAXSCALE, opacity, 0)); | |
if (sc < MAXSCALE/6) opacity = int(map(sc, MAXSCALE/6, 0, opacity, 0)); | |
if (sc > MAXSCALE) { | |
sc = 0; | |
position = startpos(SPREAD); | |
avel = 0 - avel; | |
sides = int(random(2, MAXSIDES)); | |
return; | |
} | |
fr.stroke(col, opacity); | |
fr.strokeWeight(strokew); | |
fr.noFill(); | |
ox = fr.width/2 + (ox-fr.width/2)/MOUSEF; | |
oy = fr.height * 0.99; | |
fr.translate(ox, oy); | |
fr.rotate($rot); | |
fr.pushMatrix(); | |
fr.scale(sc); | |
fr.translate(position.x, position.y); | |
fr.rotate(rot); | |
if (shape == SHAPE_FLOWER) flower(fr, 0,0, minrad, maxrad, sides, 8*sc); | |
else if (shape == SHAPE_STAR) star(fr, 0,0, minrad, maxrad, sides); | |
else if (shape == SHAPE_POINT) fr.point(0,0); | |
else polygon(fr, 0,0, rad, sides); | |
fr.popMatrix(); | |
fr.rotate(-$rot); | |
fr.translate(-ox, -oy); | |
} | |
} | |
/* draw flower */ | |
void flower(PGraphics fr, float x, float y, float minrad, float maxrad, int npetals, float detail) { | |
if (detail < npetals*4) detail = npetals * 4; | |
float ac = TAU / detail; | |
for (float angle = 0; angle < TAU; angle+=ac) { | |
float radius = lerp(minrad, maxrad, abs(sin(angle*npetals))); | |
PVector drawto = PVector.add(new PVector(x,y), | |
PVector.fromAngle(angle).setMag(radius)); | |
fr.line(x, y, drawto.x, drawto.y); | |
} | |
} | |
/* draw star */ | |
void star(PGraphics fr, float x, float y, float minrad, float maxrad, int npoints) { | |
float angle = TAU / npoints / 2; | |
fr.beginShape(); | |
for (float a = 0; a < TAU; a += angle) { | |
float sx = x + cos(a) * maxrad; | |
float sy = y + sin(a) * maxrad; | |
fr.vertex(sx, sy); | |
a+= angle; | |
sx = x + cos(a) * minrad; | |
sy = y + sin(a) * minrad; | |
fr.vertex(sx, sy); | |
} | |
fr.endShape(CLOSE); | |
} | |
/* from the Regular Polygon example */ | |
void polygon(PGraphics fr, float x, float y, float radius, int npoints) { | |
float angle = TWO_PI / npoints; | |
fr.beginShape(); | |
for (float a = 0; a < TWO_PI; a += angle) { | |
float sx = x + cos(a) * radius; | |
float sy = y + sin(a) * radius; | |
fr.vertex(sx, sy); | |
} | |
fr.endShape(CLOSE); | |
} | |
/* Full window blur */ | |
void windowBlur(PGraphics fr, color bg, int opacity) { | |
fr.blendMode(BLEND); | |
fr.noStroke(); | |
fr.fill(bg, opacity); | |
fr.rectMode(CORNER); | |
fr.rect(0,0, fr.width, fr.height); | |
fr.noFill(); | |
} |
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