public void render(GL10 gl) {
if (numTest < numTests) {
if (negativeSign != getSign(ball.getLinearVelocity().z)) {
sumEK += ball.getKineticEnergy();
negativeSign = !negativeSign;
numBounces++;
Logger.write(ball.getKineticEnergy() + "");
ticks = 0;
}
float z = ball.getTranslation().z;
if (numBounces > maxBounces
|| ticks > maxTicks
|| ball.getLinearVelocity().length() == 0
|| z > 100
|| z < -100) {
if (ball.getLinearVelocity().length() == 0) {
for (int i = numBounces; i < maxBounces + 1; i++) Logger.write("0.0");
numTest++;
} else if (numBounces > maxBounces) {
numTest++;
}
ticks = 0;
avgEK[numTest] = (float) (sumEK / (float) maxBounces);
sumEK = 0;
numBounces = 0;
resetSimulation(restitution + (float) numTest * deltaRest, true);
Logger.close();
Logger.setLogFile(String.format(format, restitution + (float) numTest * deltaRest));
}
ticks++;
}
for (int i = 0; i < table.length; i++) table[i].render(gl);
ball.render(gl);
}
public void create() {
dw.simulationSubSteps = 120;
dw.fixedStep = (float) (1.0 / 60.0);
camera = new Camera(new Vector3(0, 20, 0), 0, 270);
// camera.lookat = true;
Camera.active = camera;
tableBottom = new Box(3f, 1, 3f);
tableBottom.setColor(.3f, 1, .3f, 1);
tableVerticalPart = new Box(1, 1, 3f);
tableVerticalPart.setColor(.6f, .3f, 0, 1);
tableHorizontalPart = new Box(3f, 1, 1);
tableHorizontalPart.setColor(.6f, .3f, 0, 1);
table =
new CollisionShape[] {
dw.createShape(tableBottom, new Vector3(0, 1, 0), 0),
dw.createShape(tableVerticalPart, new Vector3(2f, 2, 0), 0),
dw.createShape(tableVerticalPart, new Vector3(-2f, 2, 0), 0),
dw.createShape(tableHorizontalPart, new Vector3(0, 2, 2f), 0),
dw.createShape(tableHorizontalPart, new Vector3(0, 2, -2f), 0)
};
for (int i = 0; i < table.length; i++) {
table[i].setRestitution(restitution);
table[i].setFriction(0);
}
table[0].setRestitution(1f);
ballShape = new Sphere(.25f);
box = new Box(.25f, .25f, .25f);
ball = dw.createShape(ballShape, new Vector3(0, 1.75f, 0), 1);
ball.setRestitution(restitution);
ball.setFriction(0);
ball.setLinearVelocity(new Vector3(0, 0, -5));
resetSimulation(restitution, false);
negativeSign = getSign(ball.getLinearVelocity().z);
Logger.setLogFile(String.format(format, restitution));
}