Java 类javax.vecmath.Vector2f 实例源码

项目：CustomWorldGen 文件：B3DModel.java

private List<Texture> texs() throws IOException
{
    chunk("TEXS");
    List<Texture> ret = new ArrayList<Texture>();
    while(buf.hasRemaining())
    {
        String path = readString();
        int flags = buf.getInt();
        int blend = buf.getInt();
        Vector2f pos = new Vector2f(buf.getFloat(), buf.getFloat());
        Vector2f scale = new Vector2f(buf.getFloat(), buf.getFloat());
        float rot = buf.getFloat();
        ret.add(new Texture(path, flags, blend, pos, scale, rot));
    }
    dump("TEXS([" + Joiner.on(", ").join(ret) + "])");
    popLimit();
    this.textures.addAll(ret);
    return ret;
}

项目：Analyst 文件：ComparisonGLEventListener.java

private Vector2f findPointOnCurve(Vector2f pt, Vector2f n, LinkedList<LinkedList<Vector2f>> lists) {
    Vector2f intersection = null;
    float dist = Float.MAX_VALUE;
    for (LinkedList<Vector2f> list : lists) {
        for (int i = 1; i < list.size(); i++) {
            Vector2f tmp = lineSegmentIntersection(pt, n, list.get(i - 1), list.get(i));
            if (tmp != null) {
                Vector2f tmp2 = new Vector2f(tmp);
                tmp2.sub(pt);
                if (tmp2.length() < dist) {
                    intersection = tmp;
                    dist = tmp2.length();
                }
            }
        }
    }
    //threshold
    if (dist < 20) {
        return intersection;
    } else {
        return null;
    }
}

项目：Qbar 文件：BeltGrid.java

public boolean insert(final IBelt belt, final ItemStack stack, final boolean doInsert)
{
    if (!belt.isSlope())
    {
        boolean enoughSpace = true;
        for (final ItemBelt item : belt.getItems())
        {
            if (item.getPos().y < 13 / 32F)
            {
                enoughSpace = false;
                break;
            }
        }
        if (!enoughSpace)
            return false;
        if (doInsert)
        {
            belt.getItems().add(new ItemBelt(stack, new Vector2f(this.BELT_MIDDLE, 0)));
            belt.itemUpdate();
        }
    }
    return true;
}

项目：ct-sim 文件：Parcours.java

/**
 * Prueft, ob ein Punkt ueber einem Loch liegt
 * 
 * @param pos
 * @return true, wenn der Bot ueber dem loch steht
 */
public boolean checkHole(Point3d pos) {
    if ((pos.x < 0) || (pos.y < 0) || (pos.x > dimX * blockSizeInM) || (pos.y > dimY * blockSizeInM)) {
        return true;
    }

    Iterator it = holes.iterator();
    while (it.hasNext()) {
        Vector2f min = new Vector2f((Vector2d) it.next());
        min.scale(blockSizeInM);

        Vector2f max = new Vector2f(min);
        max.add(new Vector2f(blockSizeInM, blockSizeInM));

        if ((pos.x > min.x) && (pos.x < max.x) && (pos.y > min.y) && (pos.y < max.y)) {
            return true;
        }
    }

    return false;
}

项目：codeswarm 文件：PhysicsEngineChaotic.java

/**
 * Legacy method that calculate the attractive/repulsive force between a person and one of its file along their link (the edge).
 * 
 * @param edge the link between a person and one of its file 
 * @return force force calculated between those two nodes
 */
private Vector2f calculateForceAlongAnEdge( code_swarm.Edge edge )
{
  float distance;
  float deltaDistance;
  Vector2f force = new Vector2f();
  Vector2f tforce = new Vector2f();

  // distance calculation
  tforce.sub(edge.nodeTo.mPosition, edge.nodeFrom.mPosition);
  distance = tforce.length();
  if (distance > 0) {
    // force calculation (increase when distance is different from targeted len")
    deltaDistance = (edge.len - distance) / (distance * 3);
    // force ponderation using a re-mapping life from 0-255 scale to 0-1.0 range
    // This allows nodes to drift apart as their life decreases.
    deltaDistance *= ((float)edge.life / edge.LIFE_INIT);

    // force projection onto x and y axis
    tforce.scale(deltaDistance);

    force.set(tforce);
  }

  return force;
}