Examples with Vector2 com.badlogic.gdx.math.Vector2 used on opensource projects

Example 31 with Vector2

use of com.badlogic.gdx.math.Vector2 in project commons-gdx by gemserk.

the class MovementSystem method processEntities.

@Override
protected void processEntities() {
    RandomAccessMap<Entity, EntityComponents> allTheEntityComponents = componentsHolder.entityComponents;
    int entitiesSize = allTheEntityComponents.size();
    float delta = GlobalTime.getDelta();
    for (int entityIndex = 0; entityIndex < entitiesSize; entityIndex++) {
        EntityComponents entityComponents = allTheEntityComponents.get(entityIndex);
        MovementComponent movementComponent = entityComponents.movementComponent;
        Spatial spatial = entityComponents.spatialComponent.getSpatial();
        Vector2 velocity = movementComponent.getVelocity();
        tmpVelocity.set(velocity).mul(delta);
        tmpPosition.set(spatial.getX(), spatial.getY()).add(tmpVelocity);
        float newAngle = spatial.getAngle() + delta * movementComponent.getAngularVelocity();
        spatial.setAngle(newAngle);
        spatial.setPosition(tmpPosition.x, tmpPosition.y);
    }
}

Example 32 with Vector2

use of com.badlogic.gdx.math.Vector2 in project commons-gdx by gemserk.

the class ShapeUtils method calculateBounds.

public static void calculateBounds(Vector2[] vertices, Rectangle bounds) {
    bounds.x = Float.MAX_VALUE;
    bounds.y = Float.MAX_VALUE;
    bounds.width = -Float.MAX_VALUE;
    bounds.height = -Float.MAX_VALUE;
    for (int i = 0; i < vertices.length; i++) {
        Vector2 v = vertices[i];
        if (v.x < bounds.x)
            bounds.x = v.x;
        if (v.y < bounds.y)
            bounds.y = v.y;
        if (v.x > bounds.x + bounds.width)
            bounds.width = v.x - bounds.x;
        if (v.y > bounds.y + bounds.height)
            bounds.height = v.y - bounds.y;
    }
}

Example 33 with Vector2

use of com.badlogic.gdx.math.Vector2 in project commons-gdx by gemserk.

the class EfficientPolygonTriangulator method area.

static float area(Array<Vector2> contour) {
    int n = contour.size;
    float A = 0.0f;
    for (int p = n - 1, q = 0; q < n; p = q++) {
        Vector2 p0 = contour.get(p);
        Vector2 p1 = contour.get(q);
        A += p0.x * p1.y - p1.x * p0.y;
    }
    return A * 0.5f;
}

Example 34 with Vector2

use of com.badlogic.gdx.math.Vector2 in project commons-gdx by gemserk.

the class ContactsTest method addingAContactReusesOneIfAvailable.

@Test
public void addingAContactReusesOneIfAvailable() {
    mockery.checking(new Expectations() {

        {
            ignoring(fixtureA);
            ignoring(fixtureB);
        }
    });
    Contact reusedContact = new Contact();
    contacts.contacts.add(reusedContact);
    contacts.activeContacts = 0;
    contacts.addContact(fixtureA, fixtureB, new Vector2());
    assertTrue(contacts.isInContact());
    assertThat(1, IsEqual.equalTo(contacts.getContactCount()));
    Contact contact = contacts.contacts.get(0);
    assertThat(true, IsEqual.equalTo(contact.inContact));
    assertThat(contact.myFixture, same(fixtureA));
    assertThat(contact.otherFixture, same(fixtureB));
}

Example 35 with Vector2

use of com.badlogic.gdx.math.Vector2 in project commons-gdx by gemserk.

the class Libgdx2dCameraTransformImplTest method shouldReturnProjectedVectorWhenCameraMoved.

@Ignore
@Test
public void shouldReturnProjectedVectorWhenCameraMoved() {
    Libgdx2dCameraTransformImpl camera = new Libgdx2dCameraTransformImpl();
    camera.move(100, 0);
    camera.zoom(32f);
    Vector2 position = new Vector2(10f, 10f);
    camera.project(position);
    assertThat(position.x, IsEqual.equalTo(-2880f));
    assertThat(position.y, IsEqual.equalTo(320f));
}