void the_derive(double time, double y[], double dy[]) {
int i;
BallVector balls = decode_balls(y); // new BallVector();//Ball[num_balls];
BallVector dballs = new BallVector(); // new Ball[num_balls];
for (i = 0; i < num_balls; i++) {
Ball p = balls.get2(i);
Ball d = new Ball();
d.pos = p.speed;
d.speed = wall_power(p);
d.speed.y -= 1; // gravity
dballs.add(d);
}
for (i = 0; i < num_balls; i++)
for (int j = i + 1; j < num_balls; j++) {
Ball p1 = balls.get2(i);
Ball p2 = balls.get2(j);
if (far_away_fast_calc(p1.pos, p2.pos, radius * 2)) continue;
double dist = p1.pos.calc_dist(p2.pos);
// if (dist>radius*2)
// continue;
Vec collide_power = calc_collide_power(p1, p2, dist);
dballs.get2(i).speed.add_to(collide_power);
dballs.get2(j).speed.sub_to(collide_power);
}
for (i = 0; i < springs.size(); i++) {
Spring s = springs.get2(i);
Vec collide_power = calc_spring_power(balls.get2(s.start), balls.get2(s.end));
dballs.get2(s.start).speed.add_to(collide_power);
dballs.get2(s.end).speed.sub_to(collide_power);
}
encode_balls(dballs, dy);
};
public void draw() {
background(255);
for (int i = 0; i < balls.size(); i++) {
Ball ball = (Ball) balls.get(i);
ball.calc();
ball.display();
}
}
/** Update all of the Ball's and draw them */
public void update() {
if (balls.size() != 0) {
for (int i = 0; i < balls.size(); i++) {
Ball b = (Ball) balls.get(i);
b.update();
b.attract = kelly;
b.drawBall();
}
}
}
public void controlEvent(ControlEvent theEvent) {
// DropdownList is of type ControlGroup.
// A controlEvent will be triggered from inside the ControlGroup class.
// therefore you need to check the originator of the Event with
// if (theEvent.isGroup())
// to avoid an error message thrown by controlP5.
/* if (theEvent.getController().getName().equals("restart")) {
paddles[0].points=0;
paddles[1].points=0;
}*/
if (theEvent.isGroup()) {
// check if the Event was triggered from a ControlGroup
// println("event from group : "+theEvent.getGroup().getValue()+" from
// "+theEvent.getGroup());
if (theEvent.getGroup().toString().equals("paddle1 [DropdownList]")) {
println("paddle1 " + theEvent.getGroup().getValue());
paddleSelector1 = translations[(int) theEvent.getGroup().getValue()];
println(jointNames[paddleSelector1]);
} else if (theEvent.getGroup().toString().equals("paddle2 [DropdownList]")) {
println("paddle2 " + theEvent.getGroup().getValue());
paddleSelector2 = translations[(int) theEvent.getGroup().getValue()];
println(jointNames[paddleSelector2]);
} else if (theEvent.getGroup().toString().equals("1_or_2_player [DropdownList]")) {
if ((int) theEvent.getGroup().getValue() == 0) {
onePlayer = true;
} else {
onePlayer = false;
}
} else if (theEvent.getGroup().toString().equals("speed [DropdownList]")) {
if ((int) theEvent.getGroup().getValue() == 0) {
ball.speed = new PVector(5, 5);
} else if ((int) theEvent.getGroup().getValue() == 1) {
ball.speed = new PVector(10, 10);
} else if ((int) theEvent.getGroup().getValue() == 2) {
ball.speed = new PVector(15, 15);
}
}
} else if (theEvent.isController()) {
println(
"event from controller : "
+ theEvent.getController().getValue()
+ " from "
+ theEvent.getController());
}
}
public void draw() {
background(0);
fill(0, 255, 0);
stroke(255);
// get kinect color image
context.update();
// scale to an arbitrary size and position (e.g. scale down 75%, and align to bottom / center)
skeleton.updateSkeleton();
if (onePlayer) {
paddles[0].update(skeleton.getScreenCoords(1, paddleSelector1).y);
paddles[1].update(skeleton.getScreenCoords(1, paddleSelector2).y);
} else {
paddles[0].update(skeleton.getScreenCoords(1, paddleSelector1).y);
try {
paddles[1].update(skeleton.getScreenCoords(2, paddleSelector2).y);
} catch (Exception e) {
}
}
for (int i = 0; i < paddles.length; i++) {
paddles[i].drawPaddle();
}
ball.update();
ball.checkCollision(paddles);
ball.drawBall();
/*PVector rHand = skeleton.getScreenCoords(1, SimpleOpenNI.SKEL_RIGHT_HAND) ;
PVector lHand = skeleton.getScreenCoords(1, SimpleOpenNI.SKEL_LEFT_HAND) ;
fill(255, 0, 0);
ellipse(rHand.x, rHand.y, 20, 20);
ellipse(lHand.x, lHand.y, 20, 20);*/
float offset = 80;
text(
str(paddles[0].points),
width - (offset + (0.5f * textWidth(str(paddles[0].points)))),
height - 50);
text(str(paddles[1].points), offset, height - 50);
fill(0, 255, 0, 255 - ((255 / (timer + 1)) * (timer + 1)));
if (timer > 0) {
String txt = "POINT";
text(txt, (width / 2) - (0.5f * textWidth(txt)), height / 2);
timer--;
}
}
/** If a key is pressed perform the respective actions */
public void keyPressed() {
// Add 'stems' to the balls
if (keyCode == SHIFT) {
stems = !stems;
for (int i = 0; i < balls.size(); i++) {
Ball b = (Ball) balls.get(i);
b.STEM = stems;
}
}
// toggle repaint background
else if (key == 'b') REPAINT = !REPAINT;
// Empty the ArrayList of Balls
else if (key == 'x') balls.clear();
// Add a ball
else if (key == 'f') addBall();
}
/** Add a ball to the ArrayList at current mouse position */
public void addBall() {
// Store current mouse position
x1 = mouseX;
y1 = mouseY;
// Get a random offset for the ball
int xDiff = (int) random(-10, 10);
int yDiff = (int) random(-10, 10);
// Add the mouse's (x,y) and the random offset
int x = mouseX + xDiff;
int y = mouseY + yDiff;
// Create new ball
Ball b = new Ball(x, y, ballSize);
b.STEM = stems;
b.attract = kelly;
balls.add(b);
}
public void draw() {
// Center in display window
translate(width / 2, height / 2, -1500);
// if the user turned on the angled view
if (a) {
rotateX(radians(-30));
}
background(0);
lights();
noFill();
smooth();
// if the user turned on borders
if (b) {
stroke(255);
}
stage.create();
ball.create();
if (z) {
fill(255, 255, 255, 100);
instructions.loadInstructions();
}
if (keyPressed) {
if (key == 'a' || key == 'A') {
a = (a) ? false : true;
}
if (key == 'b' || key == 'B') {
b = (b) ? false : true;
}
if (key == 'c' || key == 'C') {
c = (c) ? false : true;
}
if (key == 'g' || key == 'G') {
g = (g) ? false : true;
}
if (key == 'z') {
z = (z) ? false : true;
}
}
}
void new_ball(Vec vec) {
Ball b = new Ball();
b.pos = vec;
balls.add(b);
}