makefile.gaz

@@ -61,6 +61,7 @@ enemy_src :=		2denemy \
 					nshrkman \
 					ngeneric \
 					nanemone \
+					neyeball \
 					enemy
 
 projectl_src :=		projectl

source/enemy/neyeball.cpp

@@ -0,0 +1,47 @@
+/*=========================================================================
+
+	neyeball.cpp
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2000 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __ENEMY_NPC_H__
+#include "enemy\npc.h"
+#endif
+
+#ifndef __GAME_GAME_H__
+#include "game\game.h"
+#endif
+
+#ifndef	__PLAYER_PLAYER_H__
+#include "player\player.h"
+#endif
+
+#ifndef __PROJECTL_PROJECTL_H__
+#include "projectl\projectl.h"
+#endif
+
+
+void CNpc::processCloseEyeballAttack( int _frames )
+{
+	if ( Next )
+	{
+		// already have child, ignore
+	}
+	else
+	{
+		// create child projectile which will be deleted when the projectile has returned
+
+		CProjectile *projectile;
+		projectile = new ( "test projectile" ) CProjectile;
+		projectile->init( Pos, m_fireHeading, CProjectile::PROJECTILE_USER_SEEK, CProjectile::PROJECTILE_INFINITE_LIFE );
+
+		addChild( projectile );
+	}
+}

source/enemy/npc.cpp

@@ -277,10 +277,10 @@ CNpc::NPC_DATA CNpc::m_data[NPC_UNIT_TYPE_MAX] =
 
 	{	// NPC_EYEBALL
 		NPC_INIT_DEFAULT,
-		NPC_SENSOR_NONE,
+		NPC_SENSOR_EYEBALL_USER_CLOSE,
 		NPC_MOVEMENT_STATIC,
 		NPC_MOVEMENT_MODIFIER_NONE,
-		NPC_CLOSE_NONE,
+		NPC_CLOSE_EYEBALL_ATTACK,
 		NPC_TIMER_NONE,
 		false,
 		0,
@@ -387,7 +387,7 @@ CNpc::NPC_DATA CNpc::m_data[NPC_UNIT_TYPE_MAX] =
 
 void CNpc::init()
 {
-	m_type = NPC_GHOST_PIRATE;
+	m_type = NPC_EYEBALL;
 
 	m_heading = m_fireHeading = 0;
 	m_movementTimer = 0;
@@ -718,6 +718,20 @@ bool CNpc::processSensor()
 						}
 					}
 
+					case NPC_SENSOR_EYEBALL_USER_CLOSE:
+					{
+						if ( xDistSqr + yDistSqr < 40000 )
+						{
+							m_controlFunc = NPC_CONTROL_CLOSE;
+
+							return( true );
+						}
+						else
+						{
+							return( false );
+						}
+					}
+
 					default:
 						return( false );
 				}
@@ -913,6 +927,11 @@ void CNpc::processClose(int _frames)
 
 			break;
 
+		case NPC_CLOSE_EYEBALL_ATTACK:
+			processCloseEyeballAttack( _frames );
+
+			break;
+
 		default:
 			break;
 	}
@@ -959,27 +978,48 @@ void CNpc::render()
 
 void CNpc::processEvent( GAME_EVENT evt, CThing *sourceThing )
 {
-	if ( m_data[this->m_type].canTalk )
+	switch( evt )
 	{
-		DVECTOR sourcePos;
+		case USER_REQUEST_TALK_EVENT:
-		s32 xDiffSqr, yDiffSqr;
-
-		// check talk distance
-
-		sourcePos = sourceThing->getPos();
-
-		xDiffSqr = this->Pos.vx - sourcePos.vx;
-		xDiffSqr *= xDiffSqr;
-
-		yDiffSqr = this->Pos.vy - sourcePos.vy;
-		yDiffSqr *= yDiffSqr;
-
-		if ( xDiffSqr + yDiffSqr < 250 )
 		{
-			if( !CConversation::isActive() )
+			if ( m_data[this->m_type].canTalk )
 			{
-				CConversation::trigger( SCRIPTS_SPEECHTEST_DAT );
+				DVECTOR sourcePos;
+				s32 xDiffSqr, yDiffSqr;
+
+				// check talk distance
+
+				sourcePos = sourceThing->getPos();
+
+				xDiffSqr = this->Pos.vx - sourcePos.vx;
+				xDiffSqr *= xDiffSqr;
+
+				yDiffSqr = this->Pos.vy - sourcePos.vy;
+				yDiffSqr *= yDiffSqr;
+
+				if ( xDiffSqr + yDiffSqr < 250 )
+				{
+					if( !CConversation::isActive() )
+					{
+						CConversation::trigger( SCRIPTS_SPEECHTEST_DAT );
+					}
+				}
 			}
+
+			break;
+		}
+
+		case PROJECTILE_RETURNED_TO_SOURCE_EVENT:
+		{
+			m_controlFunc = NPC_CONTROL_MOVEMENT;
+			m_timerFunc = NPC_TIMER_ATTACK_DONE;
+			m_timerTimer = GameState::getOneSecondInFrames();
+			m_sensorFunc = NPC_SENSOR_NONE;
+
+			removeChild( sourceThing );
+			delete sourceThing;
+
+			break;
 		}
 	}
 }

source/enemy/npc.h

@@ -27,16 +27,6 @@
 class	CNpc : public CThing
 {
 public:
-	void				init();
-	void				shutdown();
-	void				think(int _frames);
-	virtual void		render();
-	void				processEvent( GAME_EVENT evt, CThing *sourceThing );
-
-
-protected:
-	// NPC data structure definitions //
-
 	enum NPC_UNIT_TYPE
 	{
 		NPC_TEST_TYPE = 0,
@@ -70,6 +60,16 @@ protected:
 		NPC_UNIT_TYPE_MAX,
 	};
 
+	void				init();
+	void				shutdown();
+	void				think(int _frames);
+	virtual void		render();
+	void				processEvent( GAME_EVENT evt, CThing *sourceThing );
+
+
+protected:
+	// NPC data structure definitions //
+
 	enum NPC_INIT_FUNC
 	{
 		NPC_INIT_DEFAULT = 0,
@@ -97,6 +97,7 @@ protected:
 		NPC_SENSOR_SHARK_MAN_USER_VISIBLE,
 		NPC_SENSOR_OIL_BLOB_USER_CLOSE,
 		NPC_SENSOR_ANEMONE_USER_CLOSE,
+		NPC_SENSOR_EYEBALL_USER_CLOSE,
 	};
 
 	enum NPC_CLOSE_FUNC
@@ -110,6 +111,7 @@ protected:
 		NPC_CLOSE_GENERIC_USER_SEEK,
 		NPC_CLOSE_ANEMONE_1_ATTACK,
 		NPC_CLOSE_ANEMONE_2_ATTACK,
+		NPC_CLOSE_EYEBALL_ATTACK,
 	};
 
 	enum NPC_MOVEMENT_FUNC
@@ -197,6 +199,10 @@ protected:
 	void				processCloseAnemone1Attack( int _frames );
 	void				processCloseAnemone2Attack( int _frames );
 
+	// eyeball functions
+
+	void				processCloseEyeballAttack( int _frames );
+
 	// data
 
 	static NPC_DATA		m_data[NPC_UNIT_TYPE_MAX];
@@ -210,9 +216,9 @@ protected:
 	CNpcPath			m_npcPath;
 	s32					m_heading;
 	s32					m_fireHeading;
-	s32					m_movementTimer;
 	s32					m_velocity;
 	bool				m_evadeClockwise;
+	s32					m_movementTimer;
 	s32					m_timerTimer;
 	s32					m_extension;
 	bool				m_extendDir;

source/game/event.h

@@ -8,6 +8,7 @@
 enum GAME_EVENT
 {
 	USER_REQUEST_TALK_EVENT,
+	PROJECTILE_RETURNED_TO_SOURCE_EVENT,
 };
 
 #endif

source/game/game.cpp

@@ -75,10 +75,6 @@ void 	CGameScene::init()
 		enemy=new ("test enemy") C2dEnemy;
 		enemy->init();
 
-		CProjectile	*testProjectile;
-		testProjectile = new( "test projectile" ) CProjectile;
-		testProjectile->init();
-
 		m_player=new ("player") CPlayer();
 		m_player->init();
 

source/projectl/projectl.cpp

@@ -39,6 +39,10 @@
 #include "game\game.h"
 #endif
 
+#ifndef	__PLAYER_PLAYER_H__
+#include "player\player.h"
+#endif
+
 
 /*****************************************************************************/
 
@@ -49,6 +53,10 @@ void CProjectile::init()
 
 	m_heading = 0;
 	m_lifetime = GameState::getOneSecondInFrames() * 2;
+	m_movementType = PROJECTILE_DUMBFIRE;
+	m_lifetimeType = PROJECTILE_FINITE_LIFE;
+	m_state = PROJECTILE_ATTACK;
+	m_turnSpeed = 256;
 }
 
 void CProjectile::init( DVECTOR initPos, s16 initHeading )
@@ -59,22 +67,172 @@ void CProjectile::init( DVECTOR initPos, s16 initHeading )
 	Pos = initPos;
 }
 
+void CProjectile::init( DVECTOR initPos, s16 initHeading, PROJECTILE_MOVEMENT_TYPE initMoveType, PROJECTILE_LIFETIME_TYPE initLifeType )
+{
+	init( initPos, initHeading );
+
+	m_movementType = initMoveType;
+	m_lifetimeType = initLifeType;
+}
+
 void CProjectile::shutdown()
 {
 	m_spriteBank->dump();		delete m_spriteBank;
 }
 
+bool CProjectile::processTargetSeek( int _frames, DVECTOR targetPos )
+{
+	s32 moveX = 0, moveY = 0;
+
+	s16 moveDist = 0;
+
+	s32 moveVel = 0;
+
+	s32 xDist, yDist;
+	s32 xDistSqr, yDistSqr;
+
+	xDist = targetPos.vx - this->Pos.vx;
+	xDistSqr = xDist * xDist;
+
+	yDist = targetPos.vy - this->Pos.vy;
+	yDistSqr = yDist * yDist;
+
+	//if ( xDistSqr + yDistSqr > 22500 )
+	//{
+		//this->m_controlFunc = NPC_CONTROL_MOVEMENT;
+	//}
+	//else
+	{
+		s16 headingToTarget = ratan2( yDist, xDist );
+		s16 maxTurnRate = m_turnSpeed;
+		s16 decDir, incDir;
+
+		decDir = m_heading - headingToTarget;
+
+		if ( decDir < 0 )
+		{
+			decDir += ONE;
+		}
+
+		incDir = headingToTarget - m_heading;
+
+		if ( incDir < 0 )
+		{
+			incDir += ONE;
+		}
+
+		if ( decDir < incDir )
+		{
+			moveDist = -decDir;
+		}
+		else
+		{
+			moveDist = incDir;
+		}
+
+		if ( moveDist < -maxTurnRate )
+		{
+			moveDist = -maxTurnRate;
+		}
+		else if ( moveDist > maxTurnRate )
+		{
+			moveDist = maxTurnRate;
+		}
+
+		m_heading += moveDist;
+
+		m_heading = m_heading % ONE;
+		
+		s32 preShiftX = _frames * 3 * rcos( m_heading );
+		s32 preShiftY = _frames * 3 * rsin( m_heading );
+
+		moveX = preShiftX >> 12;
+		if ( !moveX && preShiftX )
+		{
+			moveX = preShiftX / abs( preShiftX );
+		}
+
+		moveY = preShiftY >> 12;
+		if ( !moveY && preShiftY )
+		{
+			moveY = preShiftY / abs( preShiftY );
+		}
+
+		Pos.vx += moveX;
+		Pos.vy += moveY;
+	}
+
+	xDist = targetPos.vx - this->Pos.vx;
+	xDistSqr = xDist * xDist;
+
+	yDist = targetPos.vy - this->Pos.vy;
+	yDistSqr = yDist * yDist;
+
+	if ( xDistSqr + yDistSqr < 100 )
+	{
+		return( true );
+	}
+	else
+	{
+		return( false );
+	}
+}
+
 void CProjectile::think(int _frames)
 {
-	Pos.vx += ( _frames * 3 * rcos( m_heading ) ) >> 12;
+	switch( m_movementType )
-	Pos.vy += ( _frames * 3 * rsin( m_heading ) ) >> 12;
-
-	m_lifetime -= _frames;
-
-	if ( m_lifetime <= 0 )
 	{
-		shutdown();
+		case PROJECTILE_USER_SEEK:
-		delete this;
+		{
+			switch( m_state )
+			{
+				case PROJECTILE_RETURN:
+				{
+					if ( processTargetSeek( _frames, Parent->getPos() ) )
+					{
+						Parent->processEvent( PROJECTILE_RETURNED_TO_SOURCE_EVENT, this );
+					}
+
+					break;
+				}
+
+				case PROJECTILE_ATTACK:
+				default:
+				{
+					CPlayer *player = GameScene.getPlayer();
+					DVECTOR playerPos = player->getPos();
+
+					if ( processTargetSeek( _frames, playerPos ) )
+					{
+						m_state = PROJECTILE_RETURN;
+					}
+
+					break;
+				}
+			}
+
+			break;
+		}
+
+		case PROJECTILE_DUMBFIRE:
+		default:
+		{
+			Pos.vx += ( _frames * 3 * rcos( m_heading ) ) >> 12;
+			Pos.vy += ( _frames * 3 * rsin( m_heading ) ) >> 12;
+
+			break;
+		}
+	}
+
+	if ( m_lifetimeType == PROJECTILE_FINITE_LIFE )
+	{
+		m_lifetime -= _frames;
+
+		if ( m_lifetime <= 0 )
+		{
+			shutdown();
+			delete this;
+		}
 	}
 }
 

source/projectl/projectl.h

@@ -22,8 +22,27 @@
 class	CProjectile : public CThing
 {
 public:
+	enum PROJECTILE_MOVEMENT_TYPE
+	{
+		PROJECTILE_DUMBFIRE = 0,
+		PROJECTILE_USER_SEEK = 1,
+	};
+
+	enum PROJECTILE_LIFETIME_TYPE
+	{
+		PROJECTILE_FINITE_LIFE = 0,
+		PROJECTILE_INFINITE_LIFE = 1,
+	};
+
+	enum PROJECTILE_STATE
+	{
+		PROJECTILE_ATTACK = 0,
+		PROJECTILE_RETURN = 1,
+	};
+
 	void				init();
 	void				init( DVECTOR initPos, s16 initHeading );
+	void				init( DVECTOR initPos, s16 initHeading, PROJECTILE_MOVEMENT_TYPE initMoveType, PROJECTILE_LIFETIME_TYPE initLifeType );
 	void				shutdown();
 	void				think(int _frames);
 	virtual void		render();
@@ -31,10 +50,15 @@ public:
 
 protected:
 	DVECTOR				getScreenOffset();
+	bool				processTargetSeek( int _frames, DVECTOR targetPos );
 
-	class SpriteBank	*m_spriteBank;
+	class SpriteBank							*m_spriteBank;
-	s16					m_heading;
+	s16											m_heading;
-	s32					m_lifetime;
+	s32											m_lifetime;
+	PROJECTILE_MOVEMENT_TYPE					m_movementType;
+	PROJECTILE_LIFETIME_TYPE					m_lifetimeType;
+	PROJECTILE_STATE							m_state;
+	u16											m_turnSpeed;
 };
 
 

users/paul/spongebob project/spongebob project.dsp

@@ -133,6 +133,10 @@ SOURCE=..\..\..\source\enemy\nclam.cpp
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\source\enemy\neyeball.cpp
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\source\enemy\ngeneric.cpp
 # End Source File
 # Begin Source File