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| == // Sketch - object oriented ==
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| box b;
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| ArrayList<box> boxes = new ArrayList<box>();
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| boolean record = false;
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| void setup() {
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| size(600, 600);
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| b = new box(100, 100, 25, 25);
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| int v = 255;
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| //int x = 0;
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| //int y = 10;
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| background (0);
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| for (int i = 0; i <1000; i++) { // i++ = i + 1, i-- = i - 1
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| int x = (int)random(width-25);
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| int y = (int)random(height-25);
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| color c = color (v, v, v);
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| v = (int)random(255);
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| box b = new circle(x, y, 25, 25);
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| b.setColor(c);
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| b.setSpeed((int)random(5,10), (int)random(5,10));
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| boxes.add(b);
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| }
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| }
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| void draw () {
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| //b.paint();
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| for (int i = 0;i < boxes.size(); i++) {
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| boxes.get(i).paint();
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| boxes.get(i).move();
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| }
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| if(record) {
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| saveFrame ("frames/#####.png");
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| }
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| }
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| void keyPressed() {
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| if (key == 's') {
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| record = !record;
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| }
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| }
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| == box ==
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| public class box {
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| int x = 10; // properties
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| int y = 10;
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| int w = 50;
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| int h = 50;
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| color c = color (255);
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| int speedX = 0;
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| int speedY = 0;
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| public box () {
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| }
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| public box(int x, int y, int w, int h) {
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| this.x = x;
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| this.y = y;
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| this.w = w;
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| this.h = h;
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| }
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| void setColor(color c) {
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| this.c = c;
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| }
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| void setSpeed (int speedX, int speedY) {
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| this.speedX = speedX;
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| this.speedY = speedY;
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| }
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| void move() {
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| x = x + speedX;
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| if (x > width || x<0) {
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| speedX = -speedX;
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| }
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| y = y + speedY;
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| if (y > width || y<0) {
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| speedY = -speedY;
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| }
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| }
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| void paint() {
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| fill(c);
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| rect(x, y, w, h);
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| noStroke();
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| }
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| }
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| == circle ==
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| public class circle extends box {
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| public circle() {
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| }
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| public circle (int x, int y, int w, int h) {
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| this.x = x;
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| this.y = y;
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| this.h = h;
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| this.w = w;
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| }
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| void paint() {
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| fill(c);
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| ellipse(x, y, w, h);
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| noStroke();
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| }
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| }
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