- update test data, add list size check to TerrainGrid

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@8698 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/terrain/com/jme3/terrain/geomipmap/TerrainGrid.java

@@ -281,7 +281,7 @@ public class TerrainGrid extends TerrainQuad {
         // to accept more, there are two ways:
         // 1: every camera has an associated grid, then the location is not enough to identify which camera location has changed
         // 2: grids are associated with locations, and no incremental update is done, we load new grids for new locations, and unload those that are not needed anymore
-        Vector3f cam = locations.get(0);
+        Vector3f cam = locations.size() == 0 ? Vector3f.ZERO.clone() : locations.get(0);
         Vector3f camCell = this.getCamCell(cam); // get the grid index value of where the camera is (ie. 2,1)
         if (cellsLoaded > 1) {                  // Check if cells are updated before updating gridoffset.
             gridOffset[0] = Math.round(camCell.x * (size / 2));

engine/src/test/jme3test/terrain/TerrainGridTest.java

@@ -142,6 +142,9 @@ public class TerrainGridTest extends SimpleApplication {
                 }
 
                 public void tileAttached(Vector3f cell, TerrainQuad quad) {
+                    while(quad.getControl(RigidBodyControl.class)!=null){
+                        quad.removeControl(RigidBodyControl.class);
+                    }
 //                    try {
 //                        BinaryExporter.getInstance().save(quad, new File("/Users/normenhansen/Documents/Code/jme3/engine/src/test-data/TerrainGrid/"
 //                                + "testgrid_" + Math.round(cell.x) + "_" + Math.round(cell.y) + "_" + Math.round(cell.z) + ".j3o"));