初始化内容

third/angelscript/samples/game/bin/zombie.as

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+// Include the shared code
+#include 'shared.as'
+
+// This script implements the logic for the zombie
+class CZombie : IController
+{
+	// The constructor must take a CGameObj handle as input,
+	// this is the object that the script will control
+	CZombie(CGameObj @obj)
+	{
+		// Keep the owner for later reference
+		@self = obj;
+		direction = UP;
+	}
+
+	void OnThink()
+	{
+		// Check if we already have a reference to the player
+		const CGameObj @player = playerRef;
+		if( player is null )
+		{
+			@player = game.FindObjByName('player');
+			
+			// Keep a weak ref to the player so we don't keep the object alive unnecessarily
+			@playerRef = player;
+		}
+		
+		// The zombie can either turn, move forward, or hit. 
+		// It cannot do more than one of these, otherwise the 
+		// player will not have any advantage.
+		
+		int dx = 0, dy = 0;
+		switch( direction )
+		{
+		case UP:
+			if( player.y < self.y )
+				dy--;
+			else if( player.x < self.x )
+				direction--;
+			else 
+				direction++;
+			break;
+		case RIGHT:
+			if( player.x > self.x )
+				dx++;
+			else if( player.y < self.y )
+				direction--;
+			else 
+				direction++;
+			break;
+		case DOWN:
+			if( player.y > self.y )
+				dy++;
+			else if( player.x > self.x )
+				direction--;
+			else 
+				direction++;
+			break;
+		case LEFT:
+			if( player.x < self.x )
+				dx--;
+			else if( player.y > self.y )
+				direction--;
+			else 
+				direction++;
+			break;
+		}
+		
+		if( direction < 0 ) direction += 4;
+		if( direction > 3 ) direction -= 4;
+		
+		if( dx != 0 || dy != 0 )
+		{
+			if( !self.Move(dx,dy) )
+			{
+				// It wasn't possible to move there.
+				// Was the player in front of us?
+				if( player.x == self.x + dx && player.y == self.y + dy )
+				{
+					// Hit the player
+					self.Send(CMessage('Attack'), player);
+				}
+				else
+				{
+					// It was a stone. Turn towards the player
+					switch( direction )
+					{
+					case UP:    if( player.x < self.x ) direction--; else direction++; break;
+					case RIGHT: if( player.y < self.y ) direction--; else direction++; break;
+					case DOWN:  if( player.x > self.x ) direction--; else direction++; break;
+					case LEFT:  if( player.y > self.y ) direction--; else direction++; break;
+					}
+					
+					if( direction < 0 ) direction += 4;
+					if( direction > 3 ) direction -= 4;
+				}
+			}
+		}
+	}
+	
+	CGameObj @self;
+	const_weakref<CGameObj> playerRef;
+	int direction;
+}
+
+enum EDirection
+{
+	UP,
+	RIGHT,
+	DOWN,
+	LEFT
+}
+