Java Code Examples for com.jme3.collision.CollisionResult#setContactNormal()

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Example 1
Source File: BresenhamTerrainPicker.java    From jmonkeyengine with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
/**
 * This method adds the found Collision to an existing collisionResult.
 * @param results The results to add this collision to
 * @param patch The TerrainPatch which collided
 * @param intersection The actual intersection position
 * @param hit The hit triangle
 * @param distance The distance at which the hit occurred
 * @return Whether the collision was accepted to the list or whether it has been deduplicated
 */
private boolean addCollision(CollisionResults results, TerrainPatch patch, Vector3f intersection, Triangle hit, float distance) {
    CollisionResult cr = new CollisionResult(intersection.clone(), distance);
    cr.setGeometry(patch);
    cr.setContactNormal(hit.getNormal());
    cr.setTriangleIndex(hit.getIndex()); // this will probably always be 0

    for (int i = 0; i < results.size(); i++) {
        CollisionResult compare = results.getCollision(i);
        if (compare.getDistance() == cr.getDistance() && compare.getGeometry() == cr.getGeometry() &&
            compare.getContactPoint().equals(cr.getContactPoint()) &&
            compare.getContactNormal().equals(cr.getContactNormal())) {
                return false; // Collision already available, deduplicate.
        }
    }

    results.addCollision(cr);
    return true;
}