private void refreshFont() {
Camera cam = IsoCamera.getInstance().getCam();
Vector3f start = from.getPlanet().getPosition();
Vector3f end = to.getPlanet().getPosition();
float width = label.getLineWidth();
Random r = new Random();
// float height = r.nextFloat() * end.subtract(start).z;
Vector3f position = new Vector3f(width / 2, .15f, 0);
Vector3f fontPos = start.add(end.subtract(start).mult(0.4f + 0.75f * r.nextFloat()));
position.addLocal(fontPos);
Vector3f up = cam.getUp().clone();
Vector3f dir = cam.getDirection().clone().negateLocal().normalizeLocal();
Vector3f left = cam.getLeft().clone().normalizeLocal().negateLocal();
Quaternion look = new Quaternion();
look.fromAxes(left, up, dir);
label.setLocalTransform(new Transform(position, look));
// Vector3f camPos = IsoCamera.getInstance().getCam().getLocation();
// Vector3f fontPos = to.getPlanet().getPosition().
// subtract(from.getPlanet().getPosition());
// Vector3f up = IsoCamera.getInstance().getCam().getUp().clone();
// Vector3f dir = camPos.subtract(fontPos);
//// Vector3f dir = Vector3f.UNIT_Y.clone().subtract(fontPos);
//
// Vector3f left = IsoCamera.getInstance().getCam().getLeft().clone();
// dir.normalizeLocal();
// left.negateLocal();
// left.normalizeLocal();
// up.normalizeLocal();
//// dir.negateLocal();
//
// Quaternion look = new Quaternion();
// look.fromAxes(left, up, dir);
//
// Vector3f newPos = to.getPlanet().getPosition().
// subtract(from.getPlanet().getPosition());
//
// newPos.x -= label.getLineWidth() / 2;
//
// Transform t = new Transform(newPos, look);
//
// label.setLocalTransform(t);
}
@Override
public void updateParticleData(ParticleData[] particles, Camera cam, Matrix3f inverseRotation) {
for (int i = 0; i < particles.length; i++) {
ParticleData p = particles[i];
int offset = templateVerts.capacity() * i;
int colorOffset = templateColors.capacity() * i;
if (p.life == 0 || !p.active) {
for (int x = 0; x < templateVerts.capacity(); x += 3) {
finVerts.put(offset + x, 0);
finVerts.put(offset + x + 1, 0);
finVerts.put(offset + x + 2, 0);
}
continue;
}
for (int x = 0; x < templateVerts.capacity(); x += 3) {
switch (emitter.getBillboardMode()) {
case Velocity:
if (p.velocity.x != Vector3f.UNIT_Y.x
&& p.velocity.y != Vector3f.UNIT_Y.y
&& p.velocity.z != Vector3f.UNIT_Y.z)
up.set(p.velocity).crossLocal(Vector3f.UNIT_Y).normalizeLocal();
else up.set(p.velocity).crossLocal(lock).normalizeLocal();
left.set(p.velocity).crossLocal(up).normalizeLocal();
dir.set(p.velocity);
break;
case Velocity_Z_Up:
if (p.velocity.x != Vector3f.UNIT_Y.x
&& p.velocity.y != Vector3f.UNIT_Y.y
&& p.velocity.z != Vector3f.UNIT_Y.z)
up.set(p.velocity).crossLocal(Vector3f.UNIT_Y).normalizeLocal();
else up.set(p.velocity).crossLocal(lock).normalizeLocal();
left.set(p.velocity).crossLocal(up).normalizeLocal();
dir.set(p.velocity);
rotStore = tempQ.fromAngleAxis(-90 * FastMath.DEG_TO_RAD, left);
left = rotStore.mult(left);
up = rotStore.mult(up);
break;
case Velocity_Z_Up_Y_Left:
up.set(p.velocity).crossLocal(Vector3f.UNIT_Y).normalizeLocal();
left.set(p.velocity).crossLocal(up).normalizeLocal();
dir.set(p.velocity);
tempV3.set(left).crossLocal(up).normalizeLocal();
rotStore = tempQ.fromAngleAxis(90 * FastMath.DEG_TO_RAD, p.velocity);
left = rotStore.mult(left);
up = rotStore.mult(up);
rotStore = tempQ.fromAngleAxis(-90 * FastMath.DEG_TO_RAD, left);
up = rotStore.mult(up);
break;
case Normal:
emitter.getShape().setNext(p.triangleIndex);
tempV3.set(emitter.getShape().getNormal());
if (tempV3 == Vector3f.UNIT_Y) tempV3.set(p.velocity);
up.set(tempV3).crossLocal(Vector3f.UNIT_Y).normalizeLocal();
left.set(tempV3).crossLocal(up).normalizeLocal();
dir.set(tempV3);
break;
case Normal_Y_Up:
emitter.getShape().setNext(p.triangleIndex);
tempV3.set(p.velocity);
if (tempV3 == Vector3f.UNIT_Y) tempV3.set(Vector3f.UNIT_X);
up.set(Vector3f.UNIT_Y);
left.set(tempV3).crossLocal(up).normalizeLocal();
dir.set(tempV3);
break;
case Camera:
up.set(cam.getUp());
left.set(cam.getLeft());
dir.set(cam.getDirection());
break;
case UNIT_X:
up.set(Vector3f.UNIT_Y);
left.set(Vector3f.UNIT_Z);
dir.set(Vector3f.UNIT_X);
break;
case UNIT_Y:
up.set(Vector3f.UNIT_Z);
left.set(Vector3f.UNIT_X);
dir.set(Vector3f.UNIT_Y);
break;
case UNIT_Z:
up.set(Vector3f.UNIT_X);
left.set(Vector3f.UNIT_Y);
dir.set(Vector3f.UNIT_Z);
break;
}
tempV3.set(templateVerts.get(x), templateVerts.get(x + 1), templateVerts.get(x + 2));
tempV3 = rotStore.mult(tempV3);
tempV3.multLocal(p.size);
rotStore.fromAngles(p.angles.x, p.angles.y, p.angles.z);
tempV3 = rotStore.mult(tempV3);
tempV3.addLocal(p.position);
if (!emitter.getParticlesFollowEmitter()) {
tempV3.subtractLocal(
emitter
.getEmitterNode()
.getWorldTranslation()
.subtract(p.initialPosition)); // .divide(8f));
}
finVerts.put(offset + x, tempV3.getX());
finVerts.put(offset + x + 1, tempV3.getY());
finVerts.put(offset + x + 2, tempV3.getZ());
}
if (p.emitter.getApplyLightingTransform()) {
for (int v = 0; v < templateNormals.capacity(); v += 3) {
tempV3.set(
templateNormals.get(v), templateNormals.get(v + 1), templateNormals.get(v + 2));
rotStore.fromAngles(p.angles.x, p.angles.y, p.angles.z);
mat3.set(rotStore.toRotationMatrix());
float vx = tempV3.x, vy = tempV3.y, vz = tempV3.z;
tempV3.x = mat3.get(0, 0) * vx + mat3.get(0, 1) * vy + mat3.get(0, 2) * vz;
tempV3.y = mat3.get(1, 0) * vx + mat3.get(1, 1) * vy + mat3.get(1, 2) * vz;
tempV3.z = mat3.get(2, 0) * vx + mat3.get(2, 1) * vy + mat3.get(2, 2) * vz;
finNormals.put(offset + v, tempV3.getX());
finNormals.put(offset + v + 1, tempV3.getY());
finNormals.put(offset + v + 2, tempV3.getZ());
}
}
for (int v = 0; v < templateColors.capacity(); v += 4) {
finColors
.put(colorOffset + v, p.color.r)
.put(colorOffset + v + 1, p.color.g)
.put(colorOffset + v + 2, p.color.b)
.put(colorOffset + v + 3, p.color.a * p.alpha);
}
}
this.setBuffer(VertexBuffer.Type.Position, 3, finVerts);
if (particles[0].emitter.getApplyLightingTransform())
this.setBuffer(VertexBuffer.Type.Normal, 3, finNormals);
this.setBuffer(VertexBuffer.Type.Color, 4, finColors);
updateBound();
}
/**
* Updates the points array to contain the frustum corners of the given camera. The nearOverride
* and farOverride variables can be used to override the camera's near/far values with own values.
*
* <p>TODO: Reduce creation of new vectors
*
* @param viewCam
* @param nearOverride
* @param farOverride
*/
public static void updateFrustumPoints(
Camera viewCam, float nearOverride, float farOverride, float scale, Vector3f[] points) {
Vector3f pos = viewCam.getLocation();
Vector3f dir = viewCam.getDirection();
Vector3f up = viewCam.getUp();
float depthHeightRatio = viewCam.getFrustumTop() / viewCam.getFrustumNear();
float near = nearOverride;
float far = farOverride;
float ftop = viewCam.getFrustumTop();
float fright = viewCam.getFrustumRight();
float ratio = fright / ftop;
float near_height;
float near_width;
float far_height;
float far_width;
if (viewCam.isParallelProjection()) {
near_height = ftop;
near_width = near_height * ratio;
far_height = ftop;
far_width = far_height * ratio;
} else {
near_height = depthHeightRatio * near;
near_width = near_height * ratio;
far_height = depthHeightRatio * far;
far_width = far_height * ratio;
}
Vector3f right = dir.cross(up).normalizeLocal();
Vector3f temp = new Vector3f();
temp.set(dir).multLocal(far).addLocal(pos);
Vector3f farCenter = temp.clone();
temp.set(dir).multLocal(near).addLocal(pos);
Vector3f nearCenter = temp.clone();
Vector3f nearUp = temp.set(up).multLocal(near_height).clone();
Vector3f farUp = temp.set(up).multLocal(far_height).clone();
Vector3f nearRight = temp.set(right).multLocal(near_width).clone();
Vector3f farRight = temp.set(right).multLocal(far_width).clone();
points[0].set(nearCenter).subtractLocal(nearUp).subtractLocal(nearRight);
points[1].set(nearCenter).addLocal(nearUp).subtractLocal(nearRight);
points[2].set(nearCenter).addLocal(nearUp).addLocal(nearRight);
points[3].set(nearCenter).subtractLocal(nearUp).addLocal(nearRight);
points[4].set(farCenter).subtractLocal(farUp).subtractLocal(farRight);
points[5].set(farCenter).addLocal(farUp).subtractLocal(farRight);
points[6].set(farCenter).addLocal(farUp).addLocal(farRight);
points[7].set(farCenter).subtractLocal(farUp).addLocal(farRight);
if (scale != 1.0f) {
// find center of frustum
Vector3f center = new Vector3f();
for (int i = 0; i < 8; i++) {
center.addLocal(points[i]);
}
center.divideLocal(8f);
Vector3f cDir = new Vector3f();
for (int i = 0; i < 8; i++) {
cDir.set(points[i]).subtractLocal(center);
cDir.multLocal(scale - 1.0f);
points[i].addLocal(cDir);
}
}
}
