hey,
i tried another animation..
i have several shapes randomly translated to other positions when keypressed = true.
Now i want to make them stay in the place they were when i release the key... i tried it for the arcs and it worked, but i am not sure how to do it for every shape
the code ::::

int pixelSize=2;
PGraphics pg;
float tx,ty;
boolean t=false;

void setup() {
size(350, 505);
pg = createGraphics(160, 90, P2D);
//colorMode(HSB);
noSmooth();
//background(50, 100, 95);
//noLoop();
}

void draw() {
float xc = 25;
int timeDisplacement = millis()/30; //geschwindigkeit der animation oder :
//int timeDisplacement = frameCount;
float calculation1 = sin( radians(timeDisplacement * 0.61655617));
float calculation2 = sin( radians(timeDisplacement * -3.6352262));
pg.beginDraw();
pg.loadPixels();
for (int x = 0; x < pg.width; x++, xc += pixelSize)
{
float yc = 25;
float s1 = 128 + 128 * sin(radians(xc) * calculation1 );
for (int y = 0; y < pg.height; y++, yc += pixelSize)
{
float s2 = 128 + 128 * sin(radians(yc) * calculation2 );
float s3 = 128 + 128 * sin(radians((xc + yc + timeDisplacement * 5) / 2));
float s = (s1+ s2 + s3) / 3;
pg.pixels[x+y*pg.width] = color(s, 255 - s / 2.0, 255);
}
}
pg.updatePixels();
pg.endDraw();
// display the results
image(pg,0,0,width,height);
fill(150, 137, 76);
if (keyPressed == true) {
translate(random(-200, 150), random(-400, 100));
}
pushMatrix();
beginShape();
vertex(101, 382);
vertex(165, 335);
vertex(165, 458);
vertex(101, 458);
vertex(101, 382);
endShape();
noStroke();
popMatrix();
if (keyPressed == true) {
translate(random(-200, 150), random(-400, 100));
}
fill(0);
beginShape();
vertex(165, 335);
vertex(218, 368);
vertex(185, 368);
vertex(185, 382);
vertex(232, 382);
vertex(232, 405);
vertex(180, 405);
vertex(180, 427);
vertex(222, 427);
vertex(222, 458);
vertex(165, 458);
vertex(165, 335);
endShape();
if (keyPressed == true) {
translate(random(-35, 320), random(-450, 50));
}
fill(111, 112, 114);
beginShape();
vertex(28, 458);
vertex(42, 458);
vertex(42, 482);
vertex(28, 482);
vertex(28, 458);
endShape();
if (keyPressed == true) {
translate(random(-290, 60), random(-60, 400));
}
beginShape();
vertex(292, 20);
vertex(297, 20);
vertex(297, 105);
vertex(292, 105);
vertex(292, 20);
endShape();
if (keyPressed == true) {
translate(random(-290, 60), random(-60, 400));
}
fill(0);
beginShape();
vertex(292, 20);
vertex(297, 20);
vertex(297, 105);
vertex(292, 105);
vertex(292, 20);
endShape();
if (keyPressed == true) {
translate(random(-300, 50), random(-40, 460));
}
fill(150, 137, 76);
beginShape();
vertex(297, 39);
vertex(334, 39);
vertex(334, 41);
vertex(297, 41);
vertex(297, 39);
endShape();
if (keyPressed == true) {
translate(random(-300, 50), random(-60, 400));
}
fill(0);
beginShape();
vertex(297, 50);
vertex(319, 50);
vertex(319, 60);
vertex(297, 60);
vertex(297, 50);
endShape();
if (keyPressed == true) {
translate(random(-300, 50), random(-100, 400));
}
beginShape();
vertex(297, 100);
vertex(328, 100);
vertex(328, 105);
vertex(297, 105);
vertex(297, 100);
endShape();
if (keyPressed == true) {
translate(random(-130, 200), random(-310, 200));
}
fill(144, 32, 28);
beginShape();
vertex(165, 305);
vertex(100, 305);
vertex(100, 314);
vertex(165, 314);
vertex(165, 305);
endShape();
if (keyPressed == true) {
translate(random(-100, 150), random(-300, 20));
}
fill(0);
beginShape();
vertex(165, 289);
vertex(73, 289);
vertex(73, 294);
vertex(165, 294);
vertex(165, 289);
endShape();
fill(180, 122,30);
if (keyPressed == true) {
 tx=random(-160,200);
 ty=random(-170,190);
 t=true;
}

if (t) {
translate(tx, ty);
}

arc(165, 162, 150, 225, PI/2, PI*1.5); //linker halbkreis
fill(175,130,130,220);
arc(150, 213, 268, 238, 0, PI/2); //viertelkreis rechts unten
fill(170, 180, 170, 220);
arc(150, 213, 268, 238, TWO_PI-PI/2, TWO_PI);//viertelkreis rechts oben
fill(0);
ellipse(209, 162, 10, 10); //großer kreis
fill(76,78,78);
//ellipse(200, 156, 4, 4); //kleiner kreis
filter (BLUR, 1);
}