source/enemy/ndustdev.cpp

@@ -0,0 +1,122 @@
+/*=========================================================================
+
+	ndustdev.cpp
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2000 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __ENEMY_NPC_H__
+#include "enemy\npc.h"
+#endif
+
+#ifndef	__ENEMY_NDUSTDEV_H__
+#include "enemy\ndustdev.h"
+#endif
+
+#ifndef __GAME_GAME_H__
+#include	"game\game.h"
+#endif
+
+
+void CNpcDustDevilEnemy::postInit()
+{
+	m_npcPath.setPathType( CNpcPath::SINGLE_USE_PATH );
+}
+
+void CNpcDustDevilEnemy::processMovement( int _frames )
+{
+	s32 maxHeight = 20;
+	s32 distX, distY;
+	s32 fallSpeed = 3;
+	s8 yMovement = fallSpeed * _frames;
+	s32 groundHeight;
+
+	s32 moveX = 0;
+	s32 moveY = 0;
+
+	bool pathComplete;
+
+	// deal with anims
+
+	if ( !m_animPlaying )
+	{
+		m_animPlaying = true;
+		m_frame = 0;
+		m_animNo = m_data[m_type].moveAnim;
+	}
+
+	// ignore y component of waypoint, since we are stuck to the ground
+
+	if ( m_npcPath.thinkFlat( Pos, &pathComplete, &distX, &distY, &m_heading ) )
+	{
+		// path has finished, waypoint has changed, or there are no waypoints - do not move horizontally
+
+		if ( pathComplete )
+		{
+			m_npcPath.resetPath();
+
+			Pos = m_base;
+		}
+		else
+		{
+			// check for vertical movement
+
+			groundHeight = m_layerCollision->getHeightFromGround( Pos.vx, Pos.vy, yMovement + 16 );
+
+			if ( groundHeight <= yMovement )
+			{
+				// groundHeight <= yMovement indicates either just above ground or on or below ground
+
+				moveY = groundHeight;
+			}
+			else
+			{
+				// fall
+
+				moveY = yMovement;
+			}
+		}
+	}
+	else
+	{
+		// check for collision
+
+		distX = distX / abs( distX );
+
+		if ( m_layerCollision->getHeightFromGround( Pos.vx + ( distX * m_data[m_type].speed * _frames ), Pos.vy ) < -maxHeight )
+		{
+			// there is an obstacle in the way, increment the path point (hopefully this will resolve the problem)
+
+			m_npcPath.incPath();
+		}
+		else
+		{
+			// check for vertical movement
+
+			groundHeight = m_layerCollision->getHeightFromGround( Pos.vx, Pos.vy, yMovement + 16 );
+
+			if ( groundHeight <= yMovement )
+			{
+				// groundHeight <= yMovement indicates either just above ground or on or below ground
+
+				moveX = distX * m_data[m_type].speed * _frames;
+				moveY = groundHeight;
+			}
+			else
+			{
+				// fall
+
+				moveY = yMovement;
+			}
+		}
+	}
+
+	Pos.vx += moveX;
+	Pos.vy += moveY;
+}

source/enemy/ndustdev.h

@@ -0,0 +1,25 @@
+/*=========================================================================
+
+	ndustdev.h
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2000 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef	__ENEMY_NDUSTDEV_H__
+#define	__ENEMY_NDUSTDEV_H__
+
+class CNpcDustDevilEnemy : public CNpcEnemy
+{
+public:
+	virtual void		postInit();
+protected:
+	virtual void		processMovement( int _frames );
+};
+
+#endif