Example usage for com.badlogic.gdx.math Matrix4 setToRotation

Introduction

In this page you can find the example usage for com.badlogic.gdx.math Matrix4 setToRotation.

Prototype

public Matrix4 setToRotation(final Vector3 v1, final Vector3 v2) 

Source Link

Document

Set the matrix to a rotation matrix between two vectors.

Usage

From source file:com.lyeeedar.Roguelike3D.Game.GameObject.java

License:Open Source License

public void rotate(float x, float y, float z, float angle) {
    Vector3 axis = Pools.obtain(Vector3.class).set(x, y, z);
    Matrix4 tmpMat = Pools.obtain(Matrix4.class).idt();
    tmpMat.setToRotation(axis, angle);
    Pools.free(axis);/* ww  w .j av  a2  s  . c  o  m*/
    rotation.mul(tmpMat).nor();
    up.mul(tmpMat).nor();
    Pools.free(tmpMat);

    if (vo.attributes != null) {
        Vector3 lookAt = Pools.obtain(Vector3.class).set(0, 0, 0).add(rotation);
        vo.attributes.getRotation().setToLookAt(lookAt, up).inv();
        Pools.free(lookAt);
    }
}

---

From source file:kyle.game.besiege.location.Location.java

License:Open Source License

public void drawText(SpriteBatch batch) {
    float size_factor = 1.4f;

    if ((this.type == LocationType.VILLAGE))
        size_factor = .5f * size_factor;
    if ((this.type == LocationType.CASTLE))
        size_factor = .7f * size_factor;

    Color temp = batch.getColor();
    float zoom = getKingdom().getMapScreen().getCamera().zoom;
    zoom *= size_factor;//from w  w w . j  a v  a  2  s.  c  o  m

    // TODO do some vector calculations to make this rotate   
    // TODO create a bunch more fonts for smoother scrolling!
    // TODO do this in Kingdom at the end of everything
    // don't draw village names at a certain point.
    if (!(this.type == LocationType.VILLAGE && zoom > 1.5) && !(this.type == LocationType.CASTLE && zoom > 3)) {
        BitmapFont font;

        if (zoom > 7) {
            font = Assets.pixel150;
            zoom = 7;
        } else if (zoom > 5) {
            font = Assets.pixel100;
            zoom = 5;
        } else if (zoom > 4) {
            font = Assets.pixel80;
            zoom = 4;
        } else if (zoom > 3) {
            font = Assets.pixel64;
            zoom = 3;
        }
        // add some fonts here for smoothness
        else if (zoom > 2.5) {
            font = Assets.pixel50;
            zoom = 2.5f;
        } else if (zoom > 2) {
            font = Assets.pixel40;
            zoom = 2f;
        } else if (zoom > 1.5) {
            font = Assets.pixel30;
            zoom = 1.5f;
        } else if (zoom > 1.2) {
            font = Assets.pixel24;
            zoom = 1.2f;
        } else if (zoom > 1) {
            font = Assets.pixel20;
            zoom = 1f;
        } else if (zoom > .75) {
            font = Assets.pixel15;
            zoom = .75f;
        } else {
            font = Assets.pixel12;
            zoom = .6f;
        }
        String toDraw = getName();

        Matrix4 mx4Font = new Matrix4();
        mx4Font.trn((getX() - (int) (4.3 * toDraw.length()) * zoom), (getY() - 5 - 5 * zoom), 0);
        mx4Font.setToRotation(new Vector3(0, 0, 1), getKingdom().getMapScreen().getRotation());
        Matrix4 tempMatrix = batch.getTransformMatrix();
        batch.setTransformMatrix(mx4Font);

        //         // draw crest
        Color clear_white = new Color();
        clear_white.b = 1;
        clear_white.r = 1;
        clear_white.g = 1;
        clear_white.a = .8f;
        //         batch.setColor(clear_white);
        //         batch.draw(this.getFaction().crest, getCenterX() - 14*zoom, getCenterY() + 13, 30*zoom, 45*zoom);
        //         batch.setColor(temp);

        // draw text
        font.setColor(clear_white);
        font.draw(batch, toDraw, getX() - (int) (4.3 * toDraw.length()) * zoom, getY() - 5 - 5 * zoom);

        batch.setTransformMatrix(tempMatrix);
    }
}

---