Examples with Vector2D spacesettlers.utilities.Vector2D used on opensource projects

Example 46 with Vector2D

use of spacesettlers.utilities.Vector2D in project spacesettlers by amymcgovern.

the class TestVector2D method testGetAngle.

/**
 * Tests the angle returned by get angle for a variety of vectors
 *
 * (-10, -10, -3pi/4)	(0, -10, -pi/2)		(10, -10, -pi/4)
 *
 * 						(0, 0, 0)			(10, 0, 0)
 *
 * (-10, 10, 3pi/4)		(0, 10, pi/2)		(10, 10, pi/4)
 */
@Test
public void testGetAngle() {
    // the center
    Vector2D vector = new Vector2D(0, 0);
    assertEquals(vector.getAngle(), 0, 0.01);
    // now going around clockwise from the upper left corner
    vector = new Vector2D(-10, -10);
    assertEquals(vector.getAngle(), -(3 * Math.PI) / 4, 0.01);
    vector = new Vector2D(0, -10);
    assertEquals(vector.getAngle(), -Math.PI / 2, 0.01);
    vector = new Vector2D(10, -10);
    assertEquals(vector.getAngle(), -Math.PI / 4, 0.01);
    vector = new Vector2D(10, 0);
    assertEquals(vector.getAngle(), 0, 0.01);
    vector = new Vector2D(10, 10);
    assertEquals(vector.getAngle(), Math.PI / 4, 0.01);
    vector = new Vector2D(0, 10);
    assertEquals(vector.getAngle(), Math.PI / 2, 0.01);
    vector = new Vector2D(-10, 10);
    assertEquals(vector.getAngle(), (3 * Math.PI) / 4, 0.01);
}

Example 47 with Vector2D

use of spacesettlers.utilities.Vector2D in project spacesettlers by amymcgovern.

the class TestVector2D method testDot.

@Test
public void testDot() {
    Vector2D vector1 = new Vector2D(-3, 5);
    Vector2D vector2 = new Vector2D(2, 3);
    double dot = vector1.dot(vector2);
    assertEquals(dot, 9, 0);
}

Example 48 with Vector2D

use of spacesettlers.utilities.Vector2D in project spacesettlers by amymcgovern.

the class TestVector2D method testVectorProjectAlongXLine.

@Test
public void testVectorProjectAlongXLine() {
    Vector2D vector1 = new Vector2D(10, 0);
    Vector2D vector2 = new Vector2D(10, 0);
    Vector2D resultVector = vector1.vectorProject(vector2);
    assertEquals(resultVector.getXValue(), vector1.getXValue(), 0);
    assertEquals(resultVector.getYValue(), vector1.getYValue(), 0);
}

Example 49 with Vector2D

use of spacesettlers.utilities.Vector2D in project spacesettlers by amymcgovern.

the class AbstractWeapon method shiftWeaponFiringLocation.

/**
 * Shift the weapon firing position to be in front of the ship, not hitting it,
 * at the appropriate initial speed
 */
public void shiftWeaponFiringLocation(double initialSpeed) {
    int radiusToShift = firingShip.getRadius() + radius * 2;
    position.setX(position.getX() + (radiusToShift * Math.cos(position.getOrientation())));
    position.setY(position.getY() + (radiusToShift * Math.sin(position.getOrientation())));
    Vector2D newVelocity = new Vector2D(initialSpeed * Math.cos(position.getOrientation()), initialSpeed * Math.sin(position.getOrientation()));
    position.setTranslationalVelocity(newVelocity);
}