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Avoid allocation of a temporary float[] array

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and avoid allocation of a needless Vector3f array.
This commit is contained in:
pspeed42 2014-08-12 02:46:42 -04:00
parent 28adc784a9
commit 34b4eebb81
1 changed files with 33 additions and 30 deletions
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63
jme3-core/src/main/java/com/jme3/bounding/BoundingBox.java
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@ -720,42 +720,45 @@ public class BoundingBox extends BoundingVolume {
*/
private int collideWithRay(Ray ray, CollisionResults results) {
TempVars vars = TempVars.get();
try {
Vector3f diff = vars.vect1.set(ray.origin).subtractLocal(center);
Vector3f direction = vars.vect2.set(ray.direction);
Vector3f diff = vars.vect1.set(ray.origin).subtractLocal(center);
Vector3f direction = vars.vect2.set(ray.direction);
//float[] t = {0f, Float.POSITIVE_INFINITY};
float[] t = vars.fWdU; // use one of the tempvars arrays
t[0] = 0;
t[1] = Float.POSITIVE_INFINITY;
float[] t = {0f, Float.POSITIVE_INFINITY};
float saveT0 = t[0], saveT1 = t[1];
boolean notEntirelyClipped = clip(+direction.x, -diff.x - xExtent, t)
&& clip(-direction.x, +diff.x - xExtent, t)
&& clip(+direction.y, -diff.y - yExtent, t)
&& clip(-direction.y, +diff.y - yExtent, t)
&& clip(+direction.z, -diff.z - zExtent, t)
&& clip(-direction.z, +diff.z - zExtent, t);
float saveT0 = t[0], saveT1 = t[1];
boolean notEntirelyClipped = clip(+direction.x, -diff.x - xExtent, t)
&& clip(-direction.x, +diff.x - xExtent, t)
&& clip(+direction.y, -diff.y - yExtent, t)
&& clip(-direction.y, +diff.y - yExtent, t)
&& clip(+direction.z, -diff.z - zExtent, t)
&& clip(-direction.z, +diff.z - zExtent, t);
vars.release();
if (notEntirelyClipped && (t[0] != saveT0 || t[1] != saveT1)) {
if (t[1] > t[0]) {
float[] distances = t;
Vector3f[] points = new Vector3f[]{
new Vector3f(ray.direction).multLocal(distances[0]).addLocal(ray.origin),
new Vector3f(ray.direction).multLocal(distances[1]).addLocal(ray.origin)
};
CollisionResult result = new CollisionResult(points[0], distances[0]);
if (notEntirelyClipped && (t[0] != saveT0 || t[1] != saveT1)) {
if (t[1] > t[0]) {
float[] distances = t;
Vector3f point0 = new Vector3f(ray.direction).multLocal(distances[0]).addLocal(ray.origin);
Vector3f point1 = new Vector3f(ray.direction).multLocal(distances[1]).addLocal(ray.origin);
CollisionResult result = new CollisionResult(point0, distances[0]);
results.addCollision(result);
result = new CollisionResult(point1, distances[1]);
results.addCollision(result);
return 2;
}
Vector3f point = new Vector3f(ray.direction).multLocal(t[0]).addLocal(ray.origin);
CollisionResult result = new CollisionResult(point, t[0]);
results.addCollision(result);
result = new CollisionResult(points[1], distances[1]);
results.addCollision(result);
return 2;
return 1;
}
Vector3f point = new Vector3f(ray.direction).multLocal(t[0]).addLocal(ray.origin);
CollisionResult result = new CollisionResult(point, t[0]);
results.addCollision(result);
return 1;
return 0;
} finally {
vars.release();
}
return 0;
}
public int collideWith(Collidable other, CollisionResults results) {