Hard reset

code/game/stack.h

@@ -0,0 +1,146 @@
+/*
+===========================================================================
+Copyright (C) 2015 the OpenMoHAA team
+
+This file is part of OpenMoHAA source code.
+
+OpenMoHAA source code is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+OpenMoHAA source code is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with OpenMoHAA source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+// stack.h: Generic Stack object.
+// 
+
+#ifndef __STACK_H__
+#define __STACK_H__
+
+#include "g_local.h"
+#include "class.h"
+
+template <class Type>
+class StackNode : public Class
+	{
+	public:
+		Type		 data;
+		StackNode *next;
+
+		StackNode( Type d );
+	};
+
+template <class Type>
+inline StackNode<Type>::StackNode( Type d ) : data( d )
+	{
+	next = NULL; 
+	}
+
+template <class Type>
+class Stack : public Class
+	{
+	private:
+		StackNode<Type> *head;
+
+	public:
+					Stack();
+					~Stack<Type>();
+		void		Clear( void	);
+		qboolean Empty( void );
+		void		Push( Type data );
+		Type		Pop( void );
+	};
+
+template <class Type>
+inline Stack<Type>::Stack()
+	{
+	head = NULL;
+	}
+
+template <class Type>
+inline Stack<Type>::~Stack()
+	{
+	Clear();
+	}
+
+template <class Type>
+inline void Stack<Type>::Clear
+	(
+	void
+	)
+
+	{
+	while( !Empty() )
+		{
+		Pop();
+		}
+	}
+
+template <class Type>
+inline qboolean Stack<Type>::Empty
+	(
+	void
+	)
+
+	{
+	if ( head == NULL )
+		{
+		return true;
+		}
+	return false;
+	}
+
+template <class Type>
+inline void Stack<Type>::Push
+	(
+	Type data
+	)
+
+	{
+	StackNode<Type> *tmp;
+
+	tmp = new StackNode<Type>( data );
+	if ( !tmp )
+		{
+		assert( NULL );
+		gi.Error( ERR_DROP, "Stack::Push : Out of memory" );
+		}
+
+	tmp->next = head;
+	head = tmp;
+	}
+
+template <class Type>
+inline Type Stack<Type>::Pop
+	(
+	void
+	)
+
+	{
+	Type ret;
+	StackNode<Type> *node;
+
+	if ( !head )
+		{
+		return NULL;
+		}
+
+	node	= head;
+	ret	= node->data;
+	head	= node->next;
+
+	delete node;
+
+	return ret;
+	}
+
+#endif /* stack.h */