makefile.gaz

@@ -74,7 +74,8 @@ enemy_src :=		npc \
 					nfskull \
 					nsklfish \
 					ngary \
-					nplatfrm
+					nplatfrm \
+					nworm
 
 projectl_src :=		projectl
 

source/enemy/npc.cpp

@@ -216,8 +216,6 @@ void CNpcEnemy::init()
 {
 	CEnemyThing::init();
 
-	m_type = NPC_FLYING_DUTCHMAN;
-
 //	sActorHdr *Hdr = m_skel.Load( m_data[m_type].skelType );
 //	m_skel.Init( Hdr );
 	m_skel.Init(m_data[m_type].skelType);
@@ -444,6 +442,75 @@ void CNpcEnemy::init()
 			break;
 		}
 
+		case NPC_INIT_PARASITIC_WORM:
+		{
+			DVECTOR newPos;
+
+			newPos.vx = 100;
+			//newPos.vy = 10;
+			newPos.vy = 100;
+
+			m_npcPath.addWaypoint( newPos );
+
+			newPos.vx = 500;
+			//newPos.vy = 10;
+			newPos.vy = 100;
+
+			m_npcPath.addWaypoint( newPos );
+
+			newPos.vx = 500;
+			//newPos.vy = 100;
+			newPos.vy = 300;
+
+			m_npcPath.addWaypoint( newPos );
+
+			newPos.vx = 100;
+			//newPos.vy = 100;
+			newPos.vy = 300;
+
+			m_npcPath.addWaypoint( newPos );
+
+			m_npcPath.setPathType( PONG_PATH );
+
+			// create head of list
+			CNpcPositionHistory *newPosition;
+			newPosition = new ("position history") CNpcPositionHistory;
+			newPosition->pos = Pos;
+			m_positionHistory = newPosition;
+
+			CNpcPositionHistory *currentPosition = m_positionHistory;
+
+			// create rest of list
+
+			for ( int histLength = 1 ; histLength < ( 10 * NPC_PARASITIC_WORM_SPACING ) ; histLength++ )
+			{
+				newPosition = new ("position history") CNpcPositionHistory;
+				newPosition->pos = Pos;
+				newPosition->next = NULL;
+
+				currentPosition->next = newPosition;
+				currentPosition = newPosition;
+			}
+
+			for ( int segCount = 0 ; segCount < 10 ; segCount++ )
+			{
+				CNpcEnemy *segment;
+				segment = new ("segment") CNpcEnemy;
+				segment->setType( CNpcEnemy::NPC_PARASITIC_WORM_SEGMENT );
+				segment->init();
+				segment->setLayerCollision( m_layerCollision );
+
+				this->addChild( segment );
+			}
+
+			break;
+		}
+
+		case NPC_INIT_PARASITIC_WORM_SEGMENT:
+		{
+			break;
+		}
+
 		default:
 
 			break;
@@ -921,6 +988,13 @@ void CNpcEnemy::processMovement(int _frames)
 			break;
 		}
 
+		case NPC_MOVEMENT_PARASITIC_WORM:
+		{
+			processParasiticWormMovement( _frames );
+
+			break;
+		}
+
 		case NPC_MOVEMENT_SUB_SHARK:
 		{
 			processSubSharkMovement( _frames );

source/enemy/npc.h

@@ -128,8 +128,7 @@ public:
 		NPC_SQUID_DART,
 		NPC_FISH_FOLK,
 		NPC_PRICKLY_BUG,
-		NPC_SEA_SNAKE_1,
+		NPC_SEA_SNAKE,
-		NPC_SEA_SNAKE_2,
 		NPC_PUFFA_FISH,
 		NPC_ANGLER_FISH,
 		NPC_HERMIT_CRAB,
@@ -148,8 +147,10 @@ public:
 		NPC_SKULL_STOMPER,
 		NPC_MOTHER_JELLYFISH,
 		NPC_SUB_SHARK,
+		NPC_PARASITIC_WORM,
 		NPC_FLYING_DUTCHMAN,
 		NPC_IRON_DOGFISH,
+		NPC_PARASITIC_WORM_SEGMENT,
 		NPC_UNIT_TYPE_MAX,
 	};
 
@@ -159,6 +160,8 @@ public:
 	void				render();
 	void				processEvent( GAME_EVENT evt, CThing *sourceThing );
 	void				setLayerCollision( class CLayerCollision *_layer )		{m_layerCollision=_layer;}
+	void				setType( NPC_UNIT_TYPE newType )						{m_type = newType;}
+	void				setHeading( s32 newHeading )							{m_heading = newHeading;}
 
 
 protected:
@@ -183,6 +186,8 @@ protected:
 		NPC_INIT_FISH_FOLK,
 		NPC_INIT_FLAMING_SKULL,
 		NPC_INIT_CIRCULAR_PLATFORM,
+		NPC_INIT_PARASITIC_WORM,
+		NPC_INIT_PARASITIC_WORM_SEGMENT,
 	};
 
 	enum NPC_CONTROL_FUNC
@@ -253,6 +258,7 @@ protected:
 		NPC_MOVEMENT_FIREBALL,
 		NPC_MOVEMENT_RETURNING_HAZARD,
 		NPC_MOVEMENT_CLAM_RETRACT,
+		NPC_MOVEMENT_PARASITIC_WORM,
 	};
 
 	enum NPC_MOVEMENT_MODIFIER_FUNC
@@ -319,6 +325,7 @@ protected:
 		NPC_JELLYFISH_RESISTANCE = 64,
 		NPC_BOOGER_MONSTER_MAX_EXTENSION = 20,
 		NPC_SUB_SHARK_HIGH_SPEED = 6,
+		NPC_PARASITIC_WORM_SPACING = 6,
 		EXTEND_UP = true,
 		EXTEND_DOWN = false,
 		EXTEND_RIGHT = true,
@@ -432,6 +439,10 @@ protected:
 	void				processSubSharkMovement( int _frames );
 	void				processCloseSubSharkAttack( int _frames );
 
+	// parasitic worm functions
+
+	void				processParasiticWormMovement( int _frames );
+
 	// flying dutchman functions
 
 	void				processFlyingDutchmanMovement( int _frames );
@@ -494,6 +505,17 @@ protected:
 	DVECTOR			m_drawOffset;
 
 	virtual void		collidedWith(CThing *_thisThing);
+
+	// position history stuff
+
+	class CNpcPositionHistory
+	{
+	public:
+		DVECTOR						pos;
+		CNpcPositionHistory			*next;
+	};
+
+	CNpcPositionHistory		*m_positionHistory;
 };
 
 

source/enemy/npcdata.cpp

@@ -380,24 +380,7 @@ CNpcEnemy::NPC_DATA CNpcEnemy::m_data[NPC_UNIT_TYPE_MAX] =
 		48,
 	},
 
-	{	// NPC_SEA_SNAKE_1
+	{	// NPC_SEA_SNAKE
-		ACTORS_CLAM_A3D,
-		ANIM_CLAM_CLAMSHUT,
-		NPC_INIT_DEFAULT,
-		NPC_SENSOR_NONE,
-		NPC_MOVEMENT_FIXED_PATH,
-		NPC_MOVEMENT_MODIFIER_NONE,
-		NPC_CLOSE_NONE,
-		NPC_TIMER_NONE,
-		false,
-		3,
-		256,
-		false,
-		DAMAGE__SHOCK_ENEMY,
-		56,
-	},
-
-	{	// NPC_SEA_SNAKE_2
 		ACTORS_CLAM_A3D,
 		ANIM_CLAM_CLAMSHUT,
 		NPC_INIT_DEFAULT,
@@ -720,6 +703,23 @@ CNpcEnemy::NPC_DATA CNpcEnemy::m_data[NPC_UNIT_TYPE_MAX] =
 		256,
 	},
 
+	{	// NPC_PARASITIC_WORM
+		ACTORS_CLAM_A3D,
+		ANIM_CLAM_CLAMSHUT,
+		NPC_INIT_PARASITIC_WORM,
+		NPC_SENSOR_NONE,
+		NPC_MOVEMENT_PARASITIC_WORM,
+		NPC_MOVEMENT_MODIFIER_NONE,
+		NPC_CLOSE_NONE,
+		NPC_TIMER_NONE,
+		false,
+		3,
+		128,
+		false,
+		DAMAGE__HIT_ENEMY,
+		256,
+	},
+
 	{	// NPC_FLYING_DUTCHMAN
 		ACTORS_CLAM_A3D,
 		ANIM_CLAM_CLAMSHUT,
@@ -753,4 +753,21 @@ CNpcEnemy::NPC_DATA CNpcEnemy::m_data[NPC_UNIT_TYPE_MAX] =
 		DAMAGE__HIT_ENEMY,
 		256,
 	},
+
+	{	// NPC_PARASITIC_WORM_SEGMENT
+		ACTORS_CLAM_A3D,
+		ANIM_CLAM_CLAMSHUT,
+		NPC_INIT_PARASITIC_WORM_SEGMENT,
+		NPC_SENSOR_NONE,
+		NPC_MOVEMENT_STATIC,
+		NPC_MOVEMENT_MODIFIER_NONE,
+		NPC_CLOSE_NONE,
+		NPC_TIMER_NONE,
+		false,
+		3,
+		2048,
+		false,
+		DAMAGE__HIT_ENEMY,
+		256,
+	},
 };

source/enemy/nworm.cpp

@@ -28,9 +28,88 @@ void CNpcEnemy::processParasiticWormMovement( int _frames )
 	s32 moveX = 0, moveY = 0;
 	s32 moveVel = 0;
 	s32 moveDist = 0;
+	DVECTOR oldPos = Pos;
+	u8 skipCounter;
 
 	processGenericFixedPathMove( _frames, &moveX, &moveY, &moveVel, &moveDist );
 
 	Pos.vx += moveX;
 	Pos.vy += moveY;
+
+	m_extension += 256;
+	m_extension &= 4095;
+
+	// add new (old) position onto list head
+	CNpcPositionHistory *newPos;
+	newPos = new ("position history") CNpcPositionHistory;
+	newPos->pos = oldPos;
+	newPos->next = m_positionHistory;
+	m_positionHistory = newPos;
+
+	// remove list end
+	CNpcPositionHistory *last;
+	last = newPos;
+
+	while( newPos->next )
+	{
+		last = newPos;
+		newPos = newPos->next;
+	}
+
+	delete newPos;
+	last->next = NULL;
+
+	// assign positions
+	newPos = m_positionHistory;
+	for ( skipCounter = 1 ; skipCounter < NPC_PARASITIC_WORM_SPACING ; skipCounter++ )
+	{
+		newPos = newPos->next;
+	}
+
+	CThing	*List=Next;
+
+	oldPos = Pos;
+
+	s32 extension = m_extension;
+	u8 downShift = 2;
+
+	while( List )
+	{
+		CNpcEnemy *segment = (CNpcEnemy *) List;
+
+		s32 xDist = oldPos.vx - newPos->pos.vx;
+		s32 yDist = oldPos.vy - newPos->pos.vy;
+
+		s16 headingToTarget = ratan2( yDist, xDist );
+
+		segment->setHeading( headingToTarget );
+
+		DVECTOR sinPos;
+
+		sinPos = newPos->pos;
+		s32 diff = ( ( 10 >> downShift ) * rsin( extension ) ) >> 12;
+		sinPos.vx += ( diff * rcos( headingToTarget + 1024 ) ) >> 12;
+		sinPos.vy += ( diff * rsin( headingToTarget + 1024 ) ) >> 12;
+
+		List->setPos( sinPos );
+		oldPos = newPos->pos;
+
+		List = List->getNext();
+
+		if ( List )
+		{
+			for ( skipCounter = 0 ; skipCounter < NPC_PARASITIC_WORM_SPACING ; skipCounter++ )
+			{
+				newPos = newPos->next;
+			}
+		}
+
+		extension += 1024;
+		extension &= 4095;
+
+		if ( downShift > 0 )
+		{
+			downShift--;
+		}
+	}
 }

source/game/game.cpp

@@ -236,6 +236,7 @@ void	CGameScene::initLevel()
 #ifdef __USER_charles__		
 	CNpcEnemy	*enemy;
 	enemy=new ("test enemy") CNpcEnemy;
+	enemy->setType( CNpcEnemy::NPC_PARASITIC_WORM );
 	enemy->init();
 	enemy->setLayerCollision( Level.getCollisionLayer() );
 #endif

source/thing/thing.h

@@ -99,6 +99,7 @@ public:
 
 
 	DVECTOR			getPos()						{return Pos;}
+	void			setPos(DVECTOR newPos)			{Pos=newPos;}
 	virtual void	shove(DVECTOR move);
 	CThing			*getNext()						{return Next;}
 

users/paul/spongebob project/spongebob project.dsp

@@ -215,6 +215,10 @@ SOURCE=..\..\..\source\enemy\nsshark.cpp
 
 SOURCE=..\..\..\source\enemy\nsstomp.cpp
 # End Source File
+# Begin Source File
+
+SOURCE=..\..\..\source\enemy\nworm.cpp
+# End Source File
 # End Group
 # Begin Group "fileio"