/**
* Fire a railgun slug.
* @param p q2jgame.Player
* @param start q2java.Vec3
* @param forward q2java.Vec3
* @param damage int
* @param kick int
*/
public static void fireRail(GameObject p, Point3f start, Vector3f aimDir, int damage, int kick)
{
TraceResults tr = null;
NativeEntity ignore;
int mask;
boolean water;
Point3f from = new Point3f(start);
Point3f end = new Point3f();
end.scaleAdd(8192, aimDir, start);
ignore = p.fEntity;
water = false;
mask = Engine.MASK_SHOT | Engine.CONTENTS_SLIME | Engine.CONTENTS_LAVA;
while (ignore != null)
{
tr = Engine.trace(from, end, ignore, mask);
if ((tr.fContents & (Engine.CONTENTS_SLIME | Engine.CONTENTS_LAVA)) != 0)
{
mask &= ~(Engine.CONTENTS_SLIME | Engine.CONTENTS_LAVA);
water = true;
}
else
{
/* if ((tr.ent->svflags & SVF_MONSTER) || (tr.ent->client))
ignore = tr.ent;
else
*/ ignore = null;
if ((tr.fEntity.getReference() != p) && (tr.fEntity.getReference() instanceof GameObject))
((GameObject)tr.fEntity.getReference()).damage(p, p, aimDir, tr.fEndPos, tr.fPlaneNormal, damage, kick, 0, Engine.TE_NONE, "railgun");
}
from.set(tr.fEndPos);
}
// send gun puff / flash
Engine.writeByte(Engine.SVC_TEMP_ENTITY);
Engine.writeByte(Engine.TE_RAILTRAIL);
Engine.writePosition(start);
Engine.writePosition(tr.fEndPos);
Engine.multicast(p.fEntity.getOrigin(), Engine.MULTICAST_PHS);
if (water)
{
Engine.writeByte(Engine.SVC_TEMP_ENTITY);
Engine.writeByte(Engine.TE_RAILTRAIL);
Engine.writePosition(start);
Engine.writePosition(tr.fEndPos);
Engine.multicast(tr.fEndPos, Engine.MULTICAST_PHS);
}
}
/**
* 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);
}
}