Behaviour change: ship clipping distance now takes flasher radius into account.

git-svn-id: http://svn.berlios.de/svnroot/repos/oolite-linux/trunk@2473 127b21dd-08f5-0310-b4b7-95ae10353056

src/Core/Entities/DustEntity.h

@@ -24,7 +24,7 @@ MA 02110-1301, USA.
 
 */
 
-#import "OOSelfDrawingEntity.h"
+#import "Entity.h"
 
 #define DUST_SCALE			2000
 #define DUST_N_PARTICLES	600

src/Core/Entities/OOExhaustPlumeEntity.m

@@ -78,6 +78,12 @@ MA 02110-1301, USA.
 }
 
 
+- (double)findCollisionRadius
+{
+	return 0;	// FIXME: something sensible. Where does plume length come from anyway?
+}
+
+
 - (void) update:(OOTimeDelta) delta_t
 {
 	OOTimeAbsolute now = [UNIVERSE getTime];
@@ -108,7 +114,7 @@ MA 02110-1301, USA.
 	GLfloat flare_factor = flare_length * ex_emissive[3] * hyper_fade;
 	GLfloat red_factor = flare_length * ex_emissive[0] * (ranrot_rand() % 11) * 0.1;	// random fluctuations
 	GLfloat green_factor = flare_length * ex_emissive[1] * hyper_fade;
-
+	
 	if (flare_length > 1.0)	// afterburner!
 	{
 		red_factor = 1.5;
@@ -121,7 +127,7 @@ MA 02110-1301, USA.
 		green_factor = 0.0;
 	if ((int)(ranrot_rand() % 25) < dam - 75)
 		flare_factor = 0.0;
-
+	
 	if (flare_length < 0.1)  { flare_length = 0.1;}
 	Vector currentPos = ship->position;
 	Vector vfwd = vector_forward_from_quaternion(shipQrotation);

src/Core/Entities/OOFlasherEntity.m

@@ -140,6 +140,13 @@ MA 02110-1301, USA.
 	return YES;
 }
 
+
+- (double)findCollisionRadius
+{
+	NSSize size = [self size];
+	return fmax(size.width, size.height);
+}
+
 @end
 
 

src/Core/Entities/OOLightParticleEntity.h

@@ -40,6 +40,8 @@ MA 02110-1301, USA.
 
 - (id) initWithSize:(NSSize)size;
 
+- (NSSize) size;
+
 /*	For subclasses that don't want the default blur texture.
 	NOTE: such subclasses must deal with the OOGraphicsResetManager.
 */

src/Core/Entities/OOLightParticleEntity.m

@@ -62,6 +62,12 @@ static OOTexture *sBlobTexture = nil;
 }
 
 
+- (NSSize) size
+{
+	return _size;
+}
+
+
 - (void) drawSubEntity:(BOOL)immediate :(BOOL)translucent
 {
 	if (!translucent)  return;

src/Core/Entities/ShipEntity.h

@@ -305,6 +305,8 @@ MA 02110-1301, USA.
 	OOShipGroup				*_escortGroup;
 	uint8_t					_maxEscortCount;
 	uint8_t					_pendingEscortCount;
+	
+	GLfloat					_profileRadius;
 }
 
 // ship brains
@@ -344,6 +346,9 @@ MA 02110-1301, USA.
 
 - (void) clearSubEntities;	// Releases and clears subentity array, after making sure subentities don't think ship is owner.
 
+- (Octree *) octree;
+- (float) volume;
+
 // octree collision hunting
 - (GLfloat)doesHitLine:(Vector) v0: (Vector) v1;
 - (GLfloat)doesHitLine:(Vector) v0: (Vector) v1 :(ShipEntity**) hitEntity;
@@ -615,8 +620,6 @@ Vector positionOffsetForShipInRotationToAlignment(ShipEntity* ship, Quaternion q
 
 - (Triangle) absoluteIJKForSubentity;
 
-- (void) addSolidSubentityToCollisionRadius:(ShipEntity *)subent;
-
 ShipEntity *doOctreesCollide(ShipEntity *prime, ShipEntity *other);
 
 - (NSComparisonResult) compareBeaconCodeWith:(ShipEntity *)other;

src/Core/Entities/ShipEntity.m

@@ -102,6 +102,8 @@ static NSString * const kOOLogEntityBehaviourChanged	= @"entity.behaviour.change
 
 - (void) addSubEntity:(Entity *) subent;
 
+- (void) addSubentityToCollisionRadius:(Entity*) subent;
+
 @end
 
 
@@ -433,6 +435,8 @@ static NSString * const kOOLogEntityBehaviourChanged	= @"entity.behaviour.change
 	unsigned int	i;
 	NSArray			*plumes = [shipDict oo_arrayForKey:@"exhaust"];
 	
+	_profileRadius = collision_radius;
+	
 	for (i = 0; i < [plumes count]; i++)
 	{
 		NSArray *definition = ScanTokensFromString([plumes oo_stringAtIndex:i]);
@@ -446,6 +450,9 @@ static NSString * const kOOLogEntityBehaviourChanged	= @"entity.behaviour.change
 	{
 		[self setUpOneSubentity:[subs oo_dictionaryAtIndex:i]];
 	}
+	
+	no_draw_distance = _profileRadius * _profileRadius * NO_DRAW_DISTANCE_FACTOR * NO_DRAW_DISTANCE_FACTOR * 2.0;
+	
 	return YES;
 }
 
@@ -530,8 +537,6 @@ static NSString * const kOOLogEntityBehaviourChanged	= @"entity.behaviour.change
 		[subentity setStatus:STATUS_INACTIVE];
 	}
 	
-	[self addSolidSubentityToCollisionRadius:subentity];
-	
 	[self addSubEntity:subentity];
 	[subentity release];
 	
@@ -757,6 +762,18 @@ static NSString * const kOOLogEntityBehaviourChanged	= @"entity.behaviour.change
 #endif
 
 
+- (Octree *) octree
+{
+	return octree;
+}
+
+
+- (float) volume
+{
+	return [octree volume];
+}
+
+
 - (GLfloat)doesHitLine:(Vector)v0: (Vector)v1;
 {
 	Vector u0 = vector_between(position, v0);	// relative to origin of model / octree
@@ -1263,16 +1280,24 @@ ShipEntity* doOctreesCollide(ShipEntity* prime, ShipEntity* other)
 }
 
 
-- (void) addSolidSubentityToCollisionRadius:(ShipEntity*) subent
+- (void) addSubentityToCollisionRadius:(Entity*)subent
 {
-	if (!subent)
-		return;
-
-	double distance = sqrt(magnitude2(subent->position)) + [subent findCollisionRadius];
-	if (distance > collision_radius)
-		collision_radius = distance;
+	if (!subent)  return;
 	
-	mass += 20.0 * [subent->octree volume];
+	double distance = magnitude([subent position]) + [subent findCollisionRadius];
+	if ([subent isKindOfClass:[ShipEntity class]])	// Solid subentity
+	{
+		if (distance > collision_radius)
+		{
+			collision_radius = distance;
+		}
+		
+		mass += 20.0 * [(ShipEntity *)subent volume];
+	}
+	if (distance > _profileRadius)
+	{
+		_profileRadius = distance;
+	}
 }
 
 
@@ -3323,6 +3348,8 @@ static GLfloat mascem_color2[4] =	{ 0.4, 0.1, 0.4, 1.0};	// purple
 	// Order matters - need consistent state in setOwner:. -- Ahruman 2008-04-20
 	[subEntities addObject:sub];
 	[sub setOwner:self];
+	
+	[self addSubentityToCollisionRadius:sub];
 }