Java Code Examples for com.jme3.collision.CollisionResults#size()
The following examples show how to use
com.jme3.collision.CollisionResults#size() .
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Example 1
| Source File: BresenhamTerrainPicker.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
/**
* 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;
}
Example 2
| Source File: TestRayCollision.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 6 votes |
|
public static void main(String[] args){
Ray r = new Ray(Vector3f.ZERO, Vector3f.UNIT_X);
BoundingBox bbox = new BoundingBox(new Vector3f(5, 0, 0), 1, 1, 1);
CollisionResults res = new CollisionResults();
bbox.collideWith(r, res);
System.out.println("Bounding:" +bbox);
System.out.println("Ray: "+r);
System.out.println("Num collisions: "+res.size());
for (int i = 0; i < res.size(); i++){
System.out.println("--- Collision #"+i+" ---");
float dist = res.getCollision(i).getDistance();
Vector3f pt = res.getCollision(i).getContactPoint();
System.out.println("distance: "+dist);
System.out.println("point: "+pt);
}
}
Example 3
| Source File: TestRayCollision.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
public static void main(String[] args){
Ray r = new Ray(Vector3f.ZERO, Vector3f.UNIT_X);
BoundingBox bbox = new BoundingBox(new Vector3f(5, 0, 0), 1, 1, 1);
CollisionResults res = new CollisionResults();
bbox.collideWith(r, res);
System.out.println("Bounding:" +bbox);
System.out.println("Ray: "+r);
System.out.println("Num collisions: "+res.size());
for (int i = 0; i < res.size(); i++){
System.out.println("--- Collision #"+i+" ---");
float dist = res.getCollision(i).getDistance();
Vector3f pt = res.getCollision(i).getContactPoint();
System.out.println("distance: "+dist);
System.out.println("point: "+pt);
}
}
Example 4
| Source File: BIHTree.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
private int collideWithRay(Ray r,
Matrix4f worldMatrix,
BoundingVolume worldBound,
CollisionResults results) {
TempVars vars = TempVars.get();
try {
CollisionResults boundResults = vars.collisionResults;
boundResults.clear();
worldBound.collideWith(r, boundResults);
if (boundResults.size() > 0) {
float tMin = boundResults.getClosestCollision().getDistance();
float tMax = boundResults.getFarthestCollision().getDistance();
if (tMax <= 0) {
tMax = Float.POSITIVE_INFINITY;
} else if (tMin == tMax) {
tMin = 0;
}
if (tMin <= 0) {
tMin = 0;
}
if (r.getLimit() < Float.POSITIVE_INFINITY) {
tMax = Math.min(tMax, r.getLimit());
if (tMin > tMax){
return 0;
}
}
// return root.intersectBrute(r, worldMatrix, this, tMin, tMax, results);
return root.intersectWhere(r, worldMatrix, this, tMin, tMax, results);
}
return 0;
} finally {
vars.release();
}
}
Example 5
| Source File: HelloPicking.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 5 votes |
|
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);
}
}
}
Example 6
| Source File: TestTriangleCollision.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 5 votes |
|
@Override
public void simpleUpdate(float tpf) {
CollisionResults results = new CollisionResults();
BoundingVolume bv = geom1.getWorldBound();
golem.collideWith(bv, results);
if (results.size() > 0) {
geom1.getMaterial().setColor("Color", ColorRGBA.Red);
}else{
geom1.getMaterial().setColor("Color", ColorRGBA.Blue);
}
}
Example 7
| Source File: TestMousePick.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 5 votes |
|
@Override
public void simpleUpdate(float tpf){
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();
shootables.collideWith(ray, 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).getWorldContactPoint();
// String hit = results.getCollision(i).getGeometry().getName();
// System.out.println("* Collision #" + i);
// System.out.println(" You shot " + hit + " at " + pt + ", " + dist + " wu away.");
// }
if (results.size() > 0) {
CollisionResult closest = results.getClosestCollision();
mark.setLocalTranslation(closest.getContactPoint());
Quaternion q = new Quaternion();
q.lookAt(closest.getContactNormal(), Vector3f.UNIT_Y);
mark.setLocalRotation(q);
rootNode.attachChild(mark);
} else {
rootNode.detachChild(mark);
}
}
Example 8
| Source File: PointUtil.java From OpenRTS with MIT License | 5 votes |
|
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();
}
Example 9
| Source File: HelloPicking.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
@Override
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);
}
}
}
Example 10
| Source File: TerrainTestCollision.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
private void printCollisions(CollisionResults cr) {
System.out.println("================ Collision Results ================");
for (int i = 0; i < cr.size(); i++) {
CollisionResult res = cr.getCollision(i);
System.out.println("Result " + i);
System.out.println("\t\t" + res.toString());
}
System.out.println("================ END Collision Results ================");
}
Example 11
| Source File: TestTriangleCollision.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
@Override
public void simpleUpdate(float tpf) {
CollisionResults results = new CollisionResults();
BoundingVolume bv = geom1.getWorldBound();
golem.collideWith(bv, results);
if (results.size() > 0) {
geom1.getMaterial().setColor("Color", ColorRGBA.Red);
}else{
geom1.getMaterial().setColor("Color", ColorRGBA.Blue);
}
}
Example 12
| Source File: TestMousePick.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
@Override
public void simpleUpdate(float tpf){
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();
shootables.collideWith(ray, 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).getWorldContactPoint();
// String hit = results.getCollision(i).getGeometry().getName();
// System.out.println("* Collision #" + i);
// System.out.println(" You shot " + hit + " at " + pt + ", " + dist + " wu away.");
// }
if (results.size() > 0) {
CollisionResult closest = results.getClosestCollision();
mark.setLocalTranslation(closest.getContactPoint());
Quaternion q = new Quaternion();
q.lookAt(closest.getContactNormal(), Vector3f.UNIT_Y);
mark.setLocalRotation(q);
rootNode.attachChild(mark);
} else {
rootNode.detachChild(mark);
}
}
Example 13
| Source File: AbstractSceneEditor3DPart.java From jmonkeybuilder with Apache License 2.0 | 4 votes |
|
/**
* Update editing nodes.
*/
@JmeThread
private void updatePaintingNodes() {
if (!isPaintingMode()) {
return;
}
final Node cursorNode = getCursorNode();
final PaintingControl control = PaintingUtils.getPaintingControl(cursorNode);
final Spatial paintedModel = PaintingUtils.getPaintedModel(control);
if (paintedModel == null) {
return;
}
final CollisionResults collisions = GeomUtils.getCollisionsFromCursor(paintedModel, getCamera());
if (collisions.size() < 1) {
return;
}
CollisionResult result = null;
for (final CollisionResult collision : collisions) {
final Geometry geometry = collision.getGeometry();
final Object parent = NodeUtils.findParent(geometry, spatial ->
spatial.getUserData(KEY_IGNORE_RAY_CAST) == Boolean.TRUE);
if (parent == null) {
result = collision;
break;
}
}
if (result == null) {
result = collisions.getClosestCollision();
}
final Vector3f contactPoint = result.getContactPoint();
final Vector3f contactNormal = result.getContactNormal();
final LocalObjects local = LocalObjects.get();
final Quaternion rotation = local.nextRotation();
rotation.lookAt(contactNormal, Vector3f.UNIT_Y);
cursorNode.setLocalRotation(rotation);
cursorNode.setLocalTranslation(contactPoint);
}
Example 14
| Source File: BIHNode.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
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));
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));
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;
}
Example 15
| Source File: EntropyComputeUtil.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 4 votes |
|
public static float computeLodEntropy(Mesh terrainBlock, Buffer lodIndices){
// Bounding box for the terrain block
BoundingBox bbox = (BoundingBox) terrainBlock.getBound();
// Vertex positions for the block
FloatBuffer positions = terrainBlock.getFloatBuffer(Type.Position);
// Prepare to cast rays
Vector3f pos = new Vector3f();
Vector3f dir = new Vector3f(0, -1, 0);
Ray ray = new Ray(pos, dir);
// Prepare collision results
CollisionResults results = new CollisionResults();
// Set the LOD indices on the block
VertexBuffer originalIndices = terrainBlock.getBuffer(Type.Index);
terrainBlock.clearBuffer(Type.Index);
if (lodIndices instanceof IntBuffer)
terrainBlock.setBuffer(Type.Index, 3, (IntBuffer)lodIndices);
else if (lodIndices instanceof ShortBuffer) {
terrainBlock.setBuffer(Type.Index, 3, (ShortBuffer) lodIndices);
}
// Recalculate collision mesh
terrainBlock.createCollisionData();
float entropy = 0;
for (int i = 0; i < positions.limit() / 3; i++){
BufferUtils.populateFromBuffer(pos, positions, i);
float realHeight = pos.y;
pos.addLocal(0, bbox.getYExtent(), 0);
ray.setOrigin(pos);
results.clear();
terrainBlock.collideWith(ray, Matrix4f.IDENTITY, bbox, results);
if (results.size() > 0){
Vector3f contactPoint = results.getClosestCollision().getContactPoint();
float delta = Math.abs(realHeight - contactPoint.y);
entropy = Math.max(delta, entropy);
}
}
// Restore original indices
terrainBlock.clearBuffer(Type.Index);
terrainBlock.setBuffer(originalIndices);
return entropy;
}
Example 16
| Source File: EntropyComputeUtil.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
public static float computeLodEntropy(Mesh terrainBlock, Buffer lodIndices){
// Bounding box for the terrain block
BoundingBox bbox = (BoundingBox) terrainBlock.getBound();
// Vertex positions for the block
FloatBuffer positions = terrainBlock.getFloatBuffer(Type.Position);
// Prepare to cast rays
Vector3f pos = new Vector3f();
Vector3f dir = new Vector3f(0, -1, 0);
Ray ray = new Ray(pos, dir);
// Prepare collision results
CollisionResults results = new CollisionResults();
// Set the LOD indices on the block
VertexBuffer originalIndices = terrainBlock.getBuffer(Type.Index);
terrainBlock.clearBuffer(Type.Index);
if (lodIndices instanceof IntBuffer)
terrainBlock.setBuffer(Type.Index, 3, (IntBuffer)lodIndices);
else if (lodIndices instanceof ShortBuffer) {
terrainBlock.setBuffer(Type.Index, 3, (ShortBuffer) lodIndices);
} else {
terrainBlock.setBuffer(Type.Index, 3, (ByteBuffer) lodIndices);
}
// Recalculate collision mesh
terrainBlock.createCollisionData();
float entropy = 0;
for (int i = 0; i < positions.limit() / 3; i++){
BufferUtils.populateFromBuffer(pos, positions, i);
float realHeight = pos.y;
pos.addLocal(0, bbox.getYExtent(), 0);
ray.setOrigin(pos);
results.clear();
terrainBlock.collideWith(ray, Matrix4f.IDENTITY, bbox, results);
if (results.size() > 0){
Vector3f contactPoint = results.getClosestCollision().getContactPoint();
float delta = Math.abs(realHeight - contactPoint.y);
entropy = Math.max(delta, entropy);
}
}
// Restore original indices
terrainBlock.clearBuffer(Type.Index);
terrainBlock.setBuffer(originalIndices);
return entropy;
}
Example 17
| Source File: BIHNode.java From MikuMikuStudio with BSD 2-Clause "Simplified" License | 4 votes |
|
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));
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));
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;
}
