Examples with Vector2d math.Vector2d used on opensource projects

Example 11 with Vector2d

use of math.Vector2d in project SimpleAsteroids by ljialin.

the class MonkeyBall method draw.

@Override
public void draw(Graphics2D g) {
    g.fillOval((int) s.x - radius / 2, (int) s.y - radius / 2, radius, radius);
    // use a temp reference in case a different thread sets the anchor to null
    Vector2d temp = anchor;
    g.setStroke(rope);
    if (temp != null) {
        g.setColor(ropeColor);
        g.drawLine((int) s.x, (int) s.y, (int) temp.x, (int) temp.y);
    }
}

Example 12 with Vector2d

use of math.Vector2d in project SimpleAsteroids by ljialin.

the class TestMonkeyBall method main.

public static void main(String[] args) {
    // make a monkey ball
    MonkeyBall monkeyBall = new MonkeyBall(new Vector2d(0, 0), new Vector2d(0, 0));
    // see how the position varies without an anchor
    // it should fall (i.e. increasing y) with the square of the number of iterations
    int nTicks = 10;
    for (int i = 0; i < nTicks; i++) {
        monkeyBall.update();
        System.out.println(i + "\t " + monkeyBall.s);
    }
    // now put an anchor in
    monkeyBall.setAnchor(10, 0);
    System.out.println("Anchor at: " + monkeyBall.anchor);
    for (int i = 0; i < nTicks; i++) {
        monkeyBall.update();
        System.out.println(i + "\t " + monkeyBall.s);
    }
}

Example 13 with Vector2d

use of math.Vector2d in project SimpleAsteroids by ljialin.

the class ForwardModel method asteroidDeath.

public void asteroidDeath(Asteroid a) {
    // if we still have smaller ones to
    // work through then do so
    // otherwise do nothing
    // score += asteroidScore;
    a.dead = true;
    if (a.index < gameState.params.radii.length - 1) {
        // add some new ones at this position
        for (int i = 0; i < nSplits; i++) {
            Vector2d v1 = a.v.copy().add(rand.nextGaussian(), rand.nextGaussian());
            double r = gameState.params.radii[a.index + 1];
            Asteroid splitRock = new Asteroid(a.s.copy(), v1, a.index + 1, r);
            splitRock.dead = false;
            asteroids.add(splitRock);
        }
    }
    incScore(asteroidScore[a.index]);
}

Example 14 with Vector2d

use of math.Vector2d in project SimpleAsteroids by ljialin.

the class ForwardModel method makeAsteroids.

public void makeAsteroids(int nAsteroids) {
    // System.out.println("Making nAsteroids: " + nAsteroids);
    // asteroids = new ArrayList<>();
    Vector2d centre = new Vector2d(width / 2, height / 2);
    while (nAsteroids() < nAsteroids) {
        // choose a random position and velocity
        Vector2d s = new Vector2d(rand.nextDouble() * width, rand.nextDouble() * height);
        Vector2d v = new Vector2d(rand.nextGaussian(), rand.nextGaussian());
        if (s.dist(centre) > safeRadius && v.mag() > 0.5) {
            // Asteroid a = new Asteroid(this, s, v, 0);
            // these move in interesting ways ...
            // Asteroid a = new LissajousAsteroid(this, s, v, 0);
            v.mul(rockSpeed);
            double r = gameState.params.radii[0];
            Asteroid a = new Asteroid(s, v, 0, r);
            this.addAsteroid(a);
        }
    }
}

Example 15 with Vector2d

use of math.Vector2d in project SimpleAsteroids by ljialin.

the class Ship method tryMissileLaunch.

private void tryMissileLaunch() {
    // System.out.println("Release velocity: " + releaseVelocity);
    if (releaseVelocity > maxRelease) {
        // System.out.println("Missile fired!");
        releaseVelocity = Math.max(releaseVelocity, game.params.missileMinVelocity * 2);
        Missile m = new Missile(s, new Vector2d(0, 0), game.params.missileTTL, game.params.missileRadius);
        releaseVelocity = Math.min(releaseVelocity, maxRelease);
        m.v.add(d, releaseVelocity);
        // make it clear the ship
        // m.s.add(m.v, (r() + game.params.missileRadius) * 0.5 / m.v.mag());
        releaseVelocity = 0;
        // got it! - it adds it to the old version of the gameState
        pending = m;
    // used to add the missile to the gameState here, but caused problems in
    // the way the reference was being copied, hence removed it
    // gameState.add(m);
    // System.out.println("Fired: " + m);
    // sounds.fire();
    } else {
    // System.out.println("Failed!");
    }
}