/**
* Get the direction the door or button should move.
* When the entity is spawned, the "angles"
* indicates the direction the door should move,
* but the format is a little bizarre, and the
* value doesn't actually indicate the angles
* for the entity, so we -have- to clear it,
* once we get a copy, otherwise the doors
* will appear on the maps in all sorts of odd positions.
* @return a Vec3 pointing in the direction the door opens.
*/
public static Vector3f calcMoveDir(Angle3f angles)
{
// door goes up
if (equals(angles, 0, -1, 0))
return new Vector3f(0, 0, 1);
// door goes down
if (equals(angles, 0, -2, 0))
return new Vector3f(0, 0, -1);
// some other direction?
Vector3f result = new Vector3f();
angles.getVectors(result, null, null);
return result;
}
/**
* Fire a lead projectile.
* @param p q2jgame.Player
* @param start q2java.Vec3
* @param aimDir q2java.Vec3
* @param damage int
* @param kick int
* @param teImpact int
* @param hSpread int
* @param vSpread int
*/
public static void fireLead(GameObject p, Point3f start, Vector3f aimDir, int damage, int kick, int teImpact, int hSpread, int vSpread, String obitKey)
{
TraceResults tr;
Vector3f forward = new Vector3f();
Vector3f right = new Vector3f();
Vector3f up = new Vector3f();
Point3f end = new Point3f();
float r;
float u;
Point3f waterStart = null;
boolean water = false;
int content_mask = Engine.MASK_SHOT | Engine.MASK_WATER;
tr = Engine.trace(p.fEntity.getOrigin(), start, p.fEntity, Engine.MASK_SHOT);
if (!(tr.fFraction < 1.0))
{
// limit the scope of "dir"
{
Angle3f dir = Q2Recycler.getAngle3f();
dir.set(aimDir);
dir.getVectors(forward, right, up);
Q2Recycler.put(dir);
}
r = (float) (GameUtil.cRandom() * hSpread);
u = (float) (GameUtil.cRandom() * vSpread);
end.scaleAdd(8192, forward, start);
end.scaleAdd(r, right, end);
end.scaleAdd(u, up, end);
if ((Engine.getPointContents(start) & Engine.MASK_WATER) != 0)
{
water = true;
waterStart = new Point3f(start);
content_mask &= ~Engine.MASK_WATER;
}
tr = Engine.trace(start, end, p.fEntity, content_mask);
// see if we hit water
if ((tr.fContents & Engine.MASK_WATER) != 0)
{
int color;
water = true;
waterStart = new Point3f(tr.fEndPos);
if (!start.equals(tr.fEndPos))
{
if ((tr.fContents & Engine.CONTENTS_WATER) != 0)
{
if (tr.fSurfaceName.equals("*brwater"))
color = Engine.SPLASH_BROWN_WATER;
else
color = Engine.SPLASH_BLUE_WATER;
}
else if ((tr.fContents & Engine.CONTENTS_SLIME) != 0)
color = Engine.SPLASH_SLIME;
else if ((tr.fContents & Engine.CONTENTS_LAVA) != 0)
color = Engine.SPLASH_LAVA;
else
color = Engine.SPLASH_UNKNOWN;
if (color != Engine.SPLASH_UNKNOWN)
{
Engine.writeByte(Engine.SVC_TEMP_ENTITY);
Engine.writeByte(Engine.TE_SPLASH);
Engine.writeByte(8);
Engine.writePosition(tr.fEndPos);
Engine.writeDir(tr.fPlaneNormal);
Engine.writeByte(color);
Engine.multicast(tr.fEndPos, Engine.MULTICAST_PVS);
}
// change bullet's course when it enters water
Vector3f diff = Q2Recycler.getVector3f();
Angle3f ang = Q2Recycler.getAngle3f();
diff.sub(end, start);
ang.set(diff);
ang.getVectors(forward, right, up);
r = (float)(GameUtil.cRandom() * hSpread * 2);
u = (float)(GameUtil.cRandom() * vSpread * 2);
end.scaleAdd(8192, forward, waterStart);
end.scaleAdd(r, right, end);
end.scaleAdd(u, up, end);
Q2Recycler.put(ang);
Q2Recycler.put(diff);
}
// re-trace ignoring water this time
tr = Engine.trace(waterStart, end, p.fEntity, Engine.MASK_SHOT);
}
}
// send gun puff / flash
if ((tr.fSurfaceName == null) || ((tr.fSurfaceFlags & Engine.SURF_SKY) == 0))
{
if ((tr.fFraction < 1.0) && (!tr.fSurfaceName.startsWith("sky")))
{
if (tr.fEntity.getReference() instanceof GameObject)
((GameObject)tr.fEntity.getReference()).damage(p, p, aimDir, tr.fEndPos, tr.fPlaneNormal, damage, kick, GameObject.DAMAGE_BULLET, teImpact, obitKey);
}
}
// if went through water, determine where the end and make a bubble trail
if (water)
{
Point3f pos = Q2Recycler.getPoint3f();
Vector3f leadDir = Q2Recycler.getVector3f();
leadDir.sub(tr.fEndPos, waterStart);
leadDir.normalize();
pos.scaleAdd(-2, leadDir, tr.fEndPos); // = tr.fEndPos.vectorMA(-2, dir);
if ((Engine.getPointContents(pos) & Engine.MASK_WATER) != 0)
tr.fEndPos = new Point3f(pos);
else
tr = Engine.trace(pos, waterStart, tr.fEntity, Engine.MASK_WATER);
pos.add(tr.fEndPos, waterStart);
pos.scale(0.5F);
Engine.writeByte(Engine.SVC_TEMP_ENTITY);
Engine.writeByte(Engine.TE_BUBBLETRAIL);
Engine.writePosition(waterStart);
Engine.writePosition(tr.fEndPos);
Engine.multicast(pos, Engine.MULTICAST_PVS);
Q2Recycler.put(leadDir);
Q2Recycler.put(pos);
}
}