source/platform/plantern.cpp

@@ -0,0 +1,114 @@
+/*=========================================================================
+
+	plantern.cpp
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2001 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __PLATFORM_PLANTERN_H__
+#include "platform\plantern.h"
+#endif
+
+#ifndef	__UTILS_HEADER__
+#include	"utils\utils.h"
+#endif
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcLanternPlatform::postInit()
+{
+	m_extension = 0;
+	m_heading = 1024;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcLanternPlatform::setWaypoints( sThingPlatform *ThisPlatform )
+{
+	int pointNum;
+
+	u16	*PntList=(u16*)MakePtr(ThisPlatform,sizeof(sThingPlatform));
+
+	u16 newXPos, newYPos;
+
+	newXPos = (u16) *PntList;
+	PntList++;
+	newYPos = (u16) *PntList;
+	PntList++;
+
+	DVECTOR startPos;
+	startPos.vx = newXPos << 4;
+	startPos.vy = newYPos << 4;
+
+	if ( ThisPlatform->PointCount > 1 )
+	{
+		newXPos = (u16) *PntList;
+		PntList++;
+		newYPos = (u16) *PntList;
+		PntList++;
+
+		DVECTOR pivotPos;
+		pivotPos.vx = newXPos << 4;
+		pivotPos.vy = newYPos << 4;
+
+		s32 xDist = startPos.vx - pivotPos.vx;
+		s32 yDist = startPos.vy - pivotPos.vy;
+
+		m_maxExtension = 1024 - ratan2( abs( yDist ), abs( xDist ) );
+
+		m_length = isqrt2( ( xDist * xDist ) + ( yDist * yDist ) );
+
+		init( pivotPos );
+
+		if ( xDist > 0 )
+		{
+			m_extendDir = EXTEND_LEFT;
+		}
+		else
+		{
+			m_extendDir = EXTEND_RIGHT;
+		}
+	}
+	else
+	{
+		init( startPos );
+	}
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void CNpcLanternPlatform::processMovement( int _frames )
+{
+	if ( m_extendDir == EXTEND_LEFT )
+	{
+		if ( m_extension > m_maxExtension )
+		{
+			m_extendDir = EXTEND_RIGHT;
+		}
+		else
+		{
+			m_extension += _frames << 3;
+		}
+	}
+	else
+	{
+		if ( m_extension < -m_maxExtension )
+		{
+			m_extendDir = EXTEND_LEFT;
+		}
+		else
+		{
+			m_extension -= _frames << 3;
+		}
+	}
+
+	Pos.vx = m_base.vx + ( ( m_length * rcos( m_heading + m_extension ) ) >> 12 );
+	Pos.vy = m_base.vy + ( ( m_length * rsin( m_heading + m_extension ) ) >> 12 );
+}
+

source/platform/plantern.h

@@ -0,0 +1,33 @@
+/*=========================================================================
+
+	plantern.h
+
+	Author:		CRB
+	Created: 
+	Project:	Spongebob
+	Purpose: 
+
+	Copyright (c) 2001 Climax Development Ltd
+
+===========================================================================*/
+
+#ifndef __PLATFORM_PLANTERN_H__
+#define __PLATFORM_PLANTERN_H__
+
+#ifndef __PLATFORM_PLATFORM_H__
+#include "platform\platform.h"
+#endif
+
+class CNpcLanternPlatform : public CNpcPlatform
+{
+public:
+	virtual void		postInit();
+protected:
+	virtual void		setWaypoints( sThingPlatform *ThisPlatform );
+	virtual void		processMovement( int _frames );
+
+	s32					m_length;
+	s32					m_maxExtension;
+};
+
+#endif