AI.h

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/*
 
AI.h
 
Core NPC behaviour/artificial intelligence class.
 
Oolite
Copyright (C) 2004-2013 Giles C Williams and contributors
 
This program 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.
 
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
 
*/
 
#import <Foundation/Foundation.h>
#import "OOWeakReference.h"
#import "OOTypes.h"
 
#define AI_THINK_INTERVAL                   0.125
 
 
@class ShipEntity;
 
 
@interface AI: OOWeakRefObject
{
@private
    id                  _owner;                       // OOWeakReference to the ShipEntity this is the AI for
    NSString            *ownerDesc;                    // describes the object this is the AI for
    
    NSDictionary        *stateMachine;
    NSString            *stateMachineName;
    NSString            *currentState;
    NSMutableSet        *pendingMessages;
    
    NSMutableArray      *aiStack;
    
    OOTimeAbsolute        nextThinkTime;
    OOTimeDelta          thinkTimeInterval;
    
    NSString      *jsScript;
}
 
+ (AI *) currentlyRunningAI;
+ (NSString *) currentlyRunningAIDescription;
 
- (NSString *) name;
- (NSString *) associatedJS;
- (NSString *) state;
 
- (void) setStateMachine:(NSString *)smName withJSScript:(NSString *)script;
- (void) setState:(NSString *)stateName;
 
- (void) setStateMachine:(NSString *)smName afterDelay:(NSTimeInterval)delay;
- (void) setState:(NSString *)stateName afterDelay:(NSTimeInterval)delay;
 
- (id) initWithStateMachine:(NSString *) smName andState:(NSString *) stateName;
 
- (ShipEntity *)owner;
- (void) setOwner:(ShipEntity *)ship;
 
- (void) preserveCurrentStateMachine;
 
- (void) restorePreviousStateMachine;
 
- (BOOL) hasSuspendedStateMachines;
- (void) exitStateMachineWithMessage:(NSString *)message;
 
- (NSUInteger) stackDepth;
 
// Immediately handle a message. This is the core dispatcher. DebugContext is a textual hint for diagnostics.
- (void) reactToMessage:(NSString *) message context:(NSString *)debugContext;
 
- (void) takeAction:(NSString *) action;
 
- (void) think;
 
- (void) message:(NSString *) ms;
- (void) dropMessage:(NSString *) ms;
- (NSSet *) pendingMessages;
- (void) debugDumpPendingMessages;
 
- (void) setNextThinkTime:(OOTimeAbsolute) ntt;
- (OOTimeAbsolute) nextThinkTime;
 
- (void) setThinkTimeInterval:(OOTimeDelta) tti;
- (OOTimeDelta) thinkTimeInterval;
 
- (void) clearStack;
 
- (void) clearAllData;
 
- (void)dumpState;
 
@end