I create this simple class that place a given Spatial correctly on the terrain (according to y height)
it would be interesting i think to put it in jme.
here is the code:
import java.util.logging.Logger;
import com.jme.math.FastMath;
import com.jme.math.Vector3f;
import com.jme.renderer.Renderer;
import com.jme.scene.Node;
import com.jme.scene.Spatial;
import com.jmex.terrain.TerrainBlock;
public class SpatialOnTerrain extends Node {
private static final Logger logger = Logger.getLogger(SpatialOnTerrain.class
.getName());
private static final long serialVersionUID = 1L;
//reference to the level terrain for placement
private TerrainBlock tb;
//
private Spatial model;
private float modelHeight = 0.0f;
/**
* Constructor builds the node, taking the terrain as the parameter. This
* is just the reference to the game's terrain object so that we can
* randomly place this node on the level.
* @param tb the terrain used to place the node.
*/
public SpatialOnTerrain(String name, TerrainBlock tb, Spatial model) {
super(name);
this.tb = tb;
setModel(model);
this.attachChild(model);
this.updateGeometricState(0, true);
this.setRenderQueueMode(Renderer.QUEUE_OPAQUE);
}
/**
* reset randomly places the node
* on the terrain.
*
*/
public void reset() {
placeNodeOnTerrain();
}
/**
* place node picks a random point on the terrain and places the node there. I
* set the values to be between (45 and 175) which places it within the force field
* level.
*
*/
public void placeNodeOnTerrain() {
float x = 45 + FastMath.nextRandomFloat() * 130;
float z = 45 + FastMath.nextRandomFloat() * 130;
float y = tb.getHeight(x, z) + modelHeight;
localTranslation.x = x;
localTranslation.y = y;
localTranslation.z = z;
}
public void placeNodeOnTerrain(Vector3f vector3f) {
localTranslation.x = vector3f.x;
localTranslation.y = vector3f.y;
localTranslation.z = vector3f.z;
}
public Spatial getModel() {
return model;
}
private void setModel(Spatial model) {
this.model = model;
}
public float getModelHeight() {
return modelHeight;
}
public void setModelHeight(float modelHeight) {
this.modelHeight = modelHeight;
}
}
regards
