/**
* This is an external all for direct usage.
*
* @param tpf
*/
public void pick(Vector3f direction) {
results.clear();
this.direction = direction;
ray.setOrigin(originObject.getWorldTranslation());
ray.setDirection(direction);
scene.collideWith(ray, results);
if (results.size() > 0) {
// The closest collision point is what was truly hit:
for (int i = 0; i < results.size(); i++) {
CollisionResult col = results.getCollision(i);
if (collisionTypes != null && !originObject.hasChild(col.getGeometry())) {
for (int j = 0; j < collisionTypes.length; j++) {
String typeStr = collisionTypes[j];
String type = col.getGeometry().getUserData(TYPE);
if (type != null && type.equals(typeStr)) {
contactPoint = col.getContactPoint();
contactObject = col.getGeometry();
fireSpatialListener(contactPoint, contactObject, true);
}
}
}
}
}
}
public void onAction(String name, boolean keyPressed, float tpf) {
if (name.equals("KEY_R") && !keyPressed) {}
if (name.equals("KEY_F10") && !keyPressed) {
showMainMenu();
}
if (name.equals("LMB") && !keyPressed) {
CollisionResults results = new CollisionResults();
Vector2f click2d = app.getInputManager().getCursorPosition();
Vector3f click3d =
app.getCamera().getWorldCoordinates(new Vector2f(click2d.x, click2d.y), 0f).clone();
Vector3f dir =
app.getCamera()
.getWorldCoordinates(new Vector2f(click2d.x, click2d.y), 1f)
.subtractLocal(click3d);
Ray ray = new Ray(click3d, dir);
/* Collect intersections between Ray and nodes in results list */
resourceNodes.collideWith(ray, results);
farmNodes.collideWith(ray, results);
locationNodes.collideWith(ray, results);
if (results.size() > 0) {
CollisionResult closest = results.getClosestCollision();
Geometry geom = closest.getGeometry();
String geomName = geom.getName();
if (geom.getUserData(geomName) instanceof Farm) {
Farm farm = (Farm) geom.getUserData(geomName);
setMessageHUD("Clicked on Farm cost: " + farm.getCost());
}
if (geom.getUserData(geomName) instanceof Location) {
Location loc = (Location) geom.getUserData(geomName);
setMessageHUD("Clicked on Location: " + loc.getName());
}
if (geom.getUserData(geomName) instanceof Resource) {
Resource res = (Resource) geom.getUserData(geomName);
Integer cost = null;
if (res.getType() == Resource.CHICK) {
cost = gm.getResourceManager().getCurrentPriceChicken();
} else if (res.getType() == Resource.LAMB) {
cost = gm.getResourceManager().getCurrentPriceLamb();
} else if (res.getType() == Resource.PIGLET) {
cost = gm.getResourceManager().getCurrentPricePiglet();
} else if (res.getType() == Resource.CALF) {
cost = gm.getResourceManager().getCurrentPriceCalf();
}
setMessageHUD("Clicked on " + res.getName() + " cost: " + cost);
}
}
}
}
private static CollisionResult getCollision(Node n, Ray r) {
CollisionResults results = new CollisionResults();
n.collideWith(r, results);
if (results.size() == 0) {
return null;
}
return results.getClosestCollision();
}
public int collideWith(Collidable other) {
TempVars tempVars = TempVars.get();
try {
CollisionResults tempResults = tempVars.collisionResults;
tempResults.clear();
return collideWith(other, tempResults);
} finally {
tempVars.release();
}
}
public void onAction(String name, boolean keyPressed, float tpf) {
if (name.equals("Shoot") && !keyPressed) {
// 1. Reset results list.
CollisionResults results = new CollisionResults();
// 2. Aim the ray from cam loc to cam direction.
Ray ray = new Ray(cam.getLocation(), cam.getDirection());
// 3. Collect intersections between Ray and Shootables in results list.
shootables.collideWith(ray, results);
// 4. Print the results
System.out.println("----- Collisions? " + results.size() + "-----");
for (int i = 0; i < results.size(); i++) {
// For each hit, we know distance, impact point, name of geometry.
float dist = results.getCollision(i).getDistance();
Vector3f pt = results.getCollision(i).getContactPoint();
String hit = results.getCollision(i).getGeometry().getName();
System.out.println("* Collision #" + i);
System.out.println(" You shot " + hit + " at " + pt + ", " + dist + " wu away.");
}
// 5. Use the results (we mark the hit object)
if (results.size() > 0) {
// The closest collision point is what was truly hit:
CollisionResult closest = results.getClosestCollision();
// Let's interact - we mark the hit with a red dot.
mark.setLocalTranslation(closest.getContactPoint());
rootNode.attachChild(mark);
} else {
// No hits? Then remove the red mark.
rootNode.detachChild(mark);
}
}
}
@Override
public void update(float tpf) {
super.update(tpf);
// If the mouse is being dragged, update the locations of any dragged
// temporary geometries. To determine if the locations need to be
// updated, the mouse button must be down AND the mouse must have moved
// since the last update.
if (!click.get() && newTemporaryPosition.getAndSet(false)) {
// Add the temporary spatials node if the drag has just started.
if (!showTemporarySpatials.getAndSet(true)) {
appState.getRootNode().attachChild(tempSpatials);
}
// Get the cursor's current location on the grid.
CollisionResults results = getCollision(grid, appState.getCursorRay());
if (results.size() > 0) {
// Determine the vector between the start point for the mouse
// drag and the current location of the mouse drag.
Vector3f dragLoc =
appState.getClosestGridPoint(results.getClosestCollision().getContactPoint());
dragLoc.subtractLocal(dragStart);
// We need to modify the controllers for all the
// currently-selected vertices. It's possible that
// selectionChanged() is executing at the same time, so we need
// to temporarily "lock" the selected vertex data structures.
selectionLock.lock();
try {
// Add the vector to all temporary vertices.
for (Entry<Integer, Vertex> e : selectedVertices.entrySet()) {
float[] array = e.getValue().getLocation();
Vector3f location = dragLoc.add(array[0], array[1], array[2]);
vertexControllers.get(e.getKey()).setLocation(location);
}
} finally {
selectionLock.unlock();
}
}
}
// If the dragging has stopped and we are still showing temporary
// spatials in the scene, stop showing them.
else if (!drag.get() && showTemporarySpatials.getAndSet(false)) {
appState.getRootNode().detachChild(tempSpatials);
}
return;
}
private Vector3f getWorldIntersection() {
Vector3f origin =
cam.getWorldCoordinates(
new Vector2f(settings.getWidth() / 2, settings.getHeight() / 2), 0.0f);
Vector3f direction =
cam.getWorldCoordinates(
new Vector2f(settings.getWidth() / 2, settings.getHeight() / 2), 0.3f);
direction.subtractLocal(origin).normalizeLocal();
Ray ray = new Ray(origin, direction);
CollisionResults results = new CollisionResults();
int numCollisions = terrain.collideWith(ray, results);
if (numCollisions > 0) {
CollisionResult hit = results.getClosestCollision();
return hit.getContactPoint();
}
return null;
}
/**
* Prints out a CollisionResults Collection for debugging/diagnosis.
*
* @param results A CollisionResults Collection to print out.
*/
public void printCollisionResults(CollisionResults results) {
if (results != null) {
// Print the results of the collision.
logger.info("Hits: " + results.size());
if (results.size() > 0) {
// Print the results.
for (CollisionResult result : results) {
// For each hit, we know distance, impact point, name of
// geometry.
float dist = result.getDistance();
Vector3f pt = result.getContactPoint();
String hit = result.getGeometry().getName();
logger.info("Hit " + hit + " at distance " + dist + " at location " + pt.toString());
}
}
}
return;
}
public static void HighlightModel(Camera cam, InputManager inputManager) {
CollisionResults results = new CollisionResults();
Vector2f mouseCoords = new Vector2f(inputManager.getCursorPosition());
Ray mouseRay =
new Ray(
cam.getWorldCoordinates(mouseCoords, 0),
cam.getWorldCoordinates(mouseCoords, 1)
.subtractLocal(cam.getWorldCoordinates(mouseCoords, 0))
.normalizeLocal());
Main.s_TreeNode.collideWith(mouseRay, results);
if (results.size() > 0) {
Spatial target = results.getClosestCollision().getGeometry();
AmbientLight light = new AmbientLight();
light.setColor(ColorRGBA.Blue);
Main.s_TreeNode.addLight(light);
target.addLight(light);
}
}
public MouseStatus getMouseCollision() {
if (gui.isMouseOver()) {
return null;
}
Vector3f origin = cam.getWorldCoordinates(inputManager.getCursorPosition(), 0.0f);
Vector3f direction = cam.getWorldCoordinates(inputManager.getCursorPosition(), 0.3f);
direction.subtractLocal(origin).normalizeLocal();
Ray ray = new Ray(origin, direction);
CollisionResults results = new CollisionResults();
clickableNode.collideWith(ray, results);
Vector3f v3f = null;
Model m = null;
if (results.size() > 0) {
CollisionResult closest = results.getClosestCollision();
Geometry g = closest.getGeometry();
v3f = closest.getContactPoint();
m = Model.Geometry2Model(g);
// return new
// MouseStatus(m,closest.getContactPoint().getX(),closest.getContactPoint().getZ());
}
if (water != null) {
Vector3f waterv = water.collision(ray);
if (waterv != null && (v3f == null || waterv.distance(origin) < v3f.distance(origin))) {
v3f = waterv;
}
}
if (v3f != null) return new MouseStatus(m, v3f.getX(), v3f.getZ());
return null;
}
private void doPicking() {
Point mouse = canvas.getMousePosition();
if (mouse == null) {
clearLabel();
} else {
vec2.x = mouse.x;
vec2.y = canvas.getHeight() - mouse.y;
// create ray
Vector3f end = scene.getCamera().getWorldCoordinates(vec2, 0.2f);
Vector3f start = scene.getCamera().getLocation();
Ray ray = new Ray(start, end.subtractLocal(start).normalizeLocal());
// do collision checking
CollisionResults results = new CollisionResults();
scene.getRootNode().collideWith(ray, results);
CollisionResult result = results.getClosestCollision();
if (result != null) {
Vector3f contactPoint = result.getContactPoint();
setLabel(contactPoint);
} else {
clearLabel();
}
}
}
public static void MoveModel(Camera cam, InputManager inputManager, Spatial scene) {
if (Statics.s_PlayerSettingModel == true) {
CollisionResults results = new CollisionResults();
Ray ray = new Ray();
Vector2f click2d = inputManager.getCursorPosition();
Vector3f click3d = cam.getWorldCoordinates(new Vector2f(click2d.getX(), click2d.getY()), 0f);
Vector3f dir =
cam.getWorldCoordinates(new Vector2f(click2d.getX(), click2d.getY()), 1f)
.subtractLocal(click3d)
.normalizeLocal();
ray.setOrigin(click3d);
ray.setDirection(dir);
ray = new Ray(click3d, dir);
scene.collideWith(ray, results);
if (results.size() > 0) {
CollisionResult point = results.getClosestCollision();
Vector3f destination = point.getContactPoint();
ObjectHelper.s_Model.setMaterial(ObjectHelper.greenTrans);
SetModel(destination);
}
}
}
public final int intersectWhere(
Ray r,
Matrix4f worldMatrix,
BIHTree tree,
float sceneMin,
float sceneMax,
CollisionResults results) {
TempVars vars = TempVars.get();
ArrayList<BIHStackData> stack = vars.bihStack;
stack.clear();
// float tHit = Float.POSITIVE_INFINITY;
Vector3f o = vars.vect1.set(r.getOrigin());
Vector3f d = vars.vect2.set(r.getDirection());
Matrix4f inv = vars.tempMat4.set(worldMatrix).invertLocal();
inv.mult(r.getOrigin(), r.getOrigin());
// Fixes rotation collision bug
inv.multNormal(r.getDirection(), r.getDirection());
// inv.multNormalAcross(r.getDirection(), r.getDirection());
// this is a no-no: allocating float arrays for immediate use? blarny!
/*float[] origins = {r.getOrigin().x,
r.getOrigin().y,
r.getOrigin().z};
float[] invDirections = {1f / r.getDirection().x,
1f / r.getDirection().y,
1f / r.getDirection().z};*/
r.getDirection().normalizeLocal();
Vector3f v1 = vars.vect3, v2 = vars.vect4, v3 = vars.vect5;
int cols = 0;
// stack.add(new BIHStackData(this, sceneMin, sceneMax));
vars.addStackData(this, sceneMin, sceneMax);
stackloop:
while (stack.size() > 0) {
BIHStackData data = stack.remove(stack.size() - 1);
BIHNode node = data.node;
float tMin = data.min, tMax = data.max;
if (tMax < tMin) {
continue;
}
leafloop:
while (node.axis != 3) { // while node is not a leaf
int a = node.axis;
// find the origin and direction value for the given axis
float origin, invDirection;
switch (a) {
default:
case 0: // x
origin = r.getOrigin().x;
invDirection = 1f / r.getDirection().x;
break;
case 1: // y
origin = r.getOrigin().y;
invDirection = 1f / r.getDirection().y;
break;
case 2: // z
origin = r.getOrigin().z;
invDirection = 1f / r.getDirection().z;
break;
}
// float origin = origins[a];
// float invDirection = invDirections[a];
float tNearSplit, tFarSplit;
BIHNode nearNode, farNode;
tNearSplit = (node.leftPlane - origin) * invDirection;
tFarSplit = (node.rightPlane - origin) * invDirection;
nearNode = node.left;
farNode = node.right;
if (invDirection < 0) {
float tmpSplit = tNearSplit;
tNearSplit = tFarSplit;
tFarSplit = tmpSplit;
BIHNode tmpNode = nearNode;
nearNode = farNode;
farNode = tmpNode;
}
if (tMin > tNearSplit && tMax < tFarSplit) {
continue stackloop;
}
if (tMin > tNearSplit) {
tMin = max(tMin, tFarSplit);
node = farNode;
} else if (tMax < tFarSplit) {
tMax = min(tMax, tNearSplit);
node = nearNode;
} else {
// stack.add(new BIHStackData(farNode, max(tMin, tFarSplit), tMax));
vars.addStackData(farNode, max(tMin, tFarSplit), tMax);
tMax = min(tMax, tNearSplit);
node = nearNode;
}
}
// if ( (node.rightIndex - node.leftIndex) > minTrisPerNode){
// // on demand subdivision
// node.subdivide();
// stack.add(new BIHStackData(node, tMin, tMax));
// continue stackloop;
// }
// a leaf
for (int i = node.leftIndex; i <= node.rightIndex; i++) {
tree.getTriangle(i, v1, v2, v3);
float t = r.intersects(v1, v2, v3);
if (!Float.isInfinite(t)) {
if (worldMatrix != null) {
worldMatrix.mult(v1, v1);
worldMatrix.mult(v2, v2);
worldMatrix.mult(v3, v3);
vars.ray.setOrigin(o);
vars.ray.setDirection(d);
float t_world = vars.ray.intersects(v1, v2, v3);
t = t_world;
}
Vector3f contactPoint = vars.vect4.set(d).multLocal(t).addLocal(o);
float worldSpaceDist = o.distance(contactPoint);
// don't add the collision if it is longer than the ray length
if (worldSpaceDist <= r.limit) {
CollisionResult cr =
results.addReusedCollision(
contactPoint.x, contactPoint.y, contactPoint.z, worldSpaceDist);
if (cr.getContactNormal() == null) {
cr.setContactNormal(Triangle.computeTriangleNormal(v1, v2, v3, null));
} else {
Triangle.computeTriangleNormal(v1, v2, v3, cr.getContactNormal());
}
cr.setTriangleIndex(tree.getTriangleIndex(i));
cols++;
}
}
}
}
vars.release();
r.setOrigin(o);
r.setDirection(d);
return cols;
}
public final int intersectBrute(
Ray r,
Matrix4f worldMatrix,
BIHTree tree,
float sceneMin,
float sceneMax,
CollisionResults results) {
float tHit = Float.POSITIVE_INFINITY;
TempVars vars = TempVars.get();
Vector3f v1 = vars.vect1, v2 = vars.vect2, v3 = vars.vect3;
int cols = 0;
ArrayList<BIHStackData> stack = vars.bihStack;
stack.clear();
// stack.add(new BIHStackData(this, 0, 0));
vars.addStackData(this, 0f, 0f);
stackloop:
while (stack.size() > 0) {
BIHStackData data = stack.remove(stack.size() - 1);
BIHNode node = data.node;
leafloop:
while (node.axis != 3) { // while node is not a leaf
BIHNode nearNode, farNode;
nearNode = node.left;
farNode = node.right;
// stack.add(new BIHStackData(farNode, 0, 0));
vars.addStackData(farNode, 0f, 0f);
node = nearNode;
}
// a leaf
for (int i = node.leftIndex; i <= node.rightIndex; i++) {
tree.getTriangle(i, v1, v2, v3);
if (worldMatrix != null) {
worldMatrix.mult(v1, v1);
worldMatrix.mult(v2, v2);
worldMatrix.mult(v3, v3);
}
float t = r.intersects(v1, v2, v3);
if (t < tHit) {
tHit = t;
vars.vect4.set(r.direction).multLocal(tHit).addLocal(r.origin);
CollisionResult cr =
results.addReusedCollision(vars.vect4.x, vars.vect4.y, vars.vect4.z, tHit);
cr.setTriangleIndex(tree.getTriangleIndex(i));
results.addCollision(cr);
cols++;
}
}
}
vars.release();
return cols;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ice.client.widgets.mesh.MeshAppStateMode#leftClick(boolean ,
* float)
*/
@Override
public void leftClick(boolean isPressed, float tpf) {
super.leftClick(isPressed, tpf);
// Update the mouseDown boolean.
mouseDown.set(isPressed);
// We need to differentiate between mouse clicks and mouse drags. Below,
// we classify them as follows:
// If your mouse down+up is less than 0.25 seconds, it's a click.
// If your mouse down+up is greater than 0.25 seconds, then:
// if the mouse did not move, it is a click
// if the mouse moved, it is a drag
if (mouseDown.get()) {
// Start a timer for the click. The click timer should expire after
// a quarter of a second. Then it should set the boolean "click" to
// false.
clickTimer = new Timer(true);
clickTimer.schedule(
new TimerTask() {
@Override
public void run() {
click.set(false);
}
},
clickThreshold);
// Set the starting location of the mouse drag.
CollisionResults results = getCollision(grid, appState.getCursorRayFromClick());
if (results.size() > 0) {
dragStart = appState.getClosestGridPoint(results.getClosestCollision().getContactPoint());
}
}
// Note: We have to check the clickTimer because it may be possible for
// the AWTPanel to fire a mouse release event but not a mouse press
// event.
else if (clickTimer != null) {
// Stop the click timer.
clickTimer.cancel();
// We need to get the current state of the click and drag booleans.
// We should also reset them since the mouseUp signals the end of
// the sequence of mouse events.
boolean click = this.click.getAndSet(true);
boolean drag = this.drag.getAndSet(false);
// The first condition is for clicks. Either the click was fast
// enough or the mouse did not move.
if (click || !drag) {
// Determine whether or not shift and control were pressed.
boolean addToSelection = shiftPressed.get();
boolean toggleSelection = controlPressed.get();
// Get the Vertex for the clicked geometry if possible and add
// it to the collection of selected vertices.
CollisionResults results = getCollision(vertexSpatials, appState.getCursorRayFromClick());
Vertex clickedVertex = null;
int id = 0;
if (results.size() > 0) {
// Get the Vertex ID from the VertexView.
id = Integer.parseInt(results.getClosestCollision().getGeometry().getName());
clickedVertex = appState.getMesh().getVertex(id);
}
MeshSelectionManager selection = appState.getSelectionManager();
if (addToSelection) {
// A shift-click should only add the clicked item to the
// current selection.
if (clickedVertex != null) {
selection.selectVertex(id);
}
} else if (toggleSelection) {
// A control-click should toggle clicked item's selection
// state.
if (clickedVertex != null) {
if (selection.getSelectedVertexIds().contains(id)) {
selection.deselectVertex(id);
} else {
selection.selectVertex(id);
}
}
} else {
// A standard click should clear the selection and set the
// clicked item (if any) to the current selection.
selection.clearSelection();
if (clickedVertex != null) {
selection.selectVertex(id);
}
}
}
// The second condition is for drags. The click was too slow and the
// mouse moved.
else {
// For now, all drag does it drag the currently-selected
// vertices. We do not draw boxes around things yet, so we do
// not need to check for shift or control.
// Update the location for each of the selected vertices.
for (Vertex v : selectedVertices.values()) {
VertexController controller = vertexControllers.get(v.getId());
Vector3f location = controller.getLocation();
v.setLocation(location.x, location.y, location.z);
}
}
// Reset the click timer.
clickTimer = null;
}
return;
}
public final int intersectWhere(
Collidable col,
BoundingBox box,
Matrix4f worldMatrix,
BIHTree tree,
CollisionResults results) {
TempVars vars = TempVars.get();
ArrayList<BIHStackData> stack = vars.bihStack;
stack.clear();
float[] minExts = {
box.getCenter().x - box.getXExtent(),
box.getCenter().y - box.getYExtent(),
box.getCenter().z - box.getZExtent()
};
float[] maxExts = {
box.getCenter().x + box.getXExtent(),
box.getCenter().y + box.getYExtent(),
box.getCenter().z + box.getZExtent()
};
// stack.add(new BIHStackData(this, 0, 0));
vars.addStackData(this, 0f, 0f);
Triangle t = new Triangle();
int cols = 0;
stackloop:
while (stack.size() > 0) {
BIHNode node = stack.remove(stack.size() - 1).node;
while (node.axis != 3) {
int a = node.axis;
float maxExt = maxExts[a];
float minExt = minExts[a];
if (node.leftPlane < node.rightPlane) {
// means there's a gap in the middle
// if the box is in that gap, we stop there
if (minExt > node.leftPlane && maxExt < node.rightPlane) {
continue stackloop;
}
}
if (maxExt < node.rightPlane) {
node = node.left;
} else if (minExt > node.leftPlane) {
node = node.right;
} else {
// stack.add(new BIHStackData(node.right, 0, 0));
vars.addStackData(node.right, 0f, 0f);
node = node.left;
}
// if (maxExt < node.leftPlane
// && maxExt < node.rightPlane){
// node = node.left;
// }else if (minExt > node.leftPlane
// && minExt > node.rightPlane){
// node = node.right;
// }else{
// }
}
for (int i = node.leftIndex; i <= node.rightIndex; i++) {
tree.getTriangle(i, t.get1(), t.get2(), t.get3());
if (worldMatrix != null) {
worldMatrix.mult(t.get1(), t.get1());
worldMatrix.mult(t.get2(), t.get2());
worldMatrix.mult(t.get3(), t.get3());
}
int added = col.collideWith(t, results);
if (added > 0) {
int index = tree.getTriangleIndex(i);
int start = results.size() - added;
for (int j = start; j < results.size(); j++) {
CollisionResult cr = results.getCollisionDirect(j);
cr.setTriangleIndex(index);
}
cols += added;
}
}
}
vars.release();
return cols;
}
public Material getMaterial() {
CollisionResults rMaterial = new CollisionResults();
getSpatial().collideWith(getSpatial().getWorldBound(), rMaterial);
rMaterial.toString();
return rMaterial.getClosestCollision().getGeometry().getMaterial();
}