#using scripts\shared\ai\systems\blackboard;
#using scripts\shared\ai\systems\shared;
#using scripts\shared\ai\archetype_utility;

           	                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              	  	                                 	                  	    	                                                      	   	        	                                                                         	                      	             	                                                                                                                                       	  	                                                                                                          	     	                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            	                                                                                                      	                                                                                                     	                                                                                                     	                                                                                                	     	                                                                                                                                                                                                                                                                                                                                                                                                                                	     	    	                                                                                                                                    	                      	              	  	             	  
                                                                  	                             	  	                                      
    	   	                                                                                                                                         	                                	                                                                                                                                                                                                                                                                                                                                                                    	        	     	              	    	   	               	                                              	                                                           	                               	                     	                                                                                                           	                                                                 	                                                              	                                                                                                                                             	                            	                                     	                                       	                                                                                                              	   	                  	       	                                                    	                   	                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            	                                                                                                 	                                    	                                                                                        	           	                        	                                            	                                             	                                                   	                                                             	                                                         	                                                                    	                                                                                                                                                                                                                                	                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  	    	         	                                                              	                                                          	                                   	                                   	                                                    	                                       	                                           	     	                                                                                                                                                                                                                                                      	                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         	                                                               	        	                                                                                                                              	                                                                                                                     	                               	                                                      	                          

#namespace Blackboard;

//*****************************************************************************
// NOTE! When adding a new blackboard variable you must also declare the 
// blackboard variable within the ast_definitions file found at:
//
// //t7/main/game/share/raw/animtables/ast_definitions.json
//
// This allows the Animation Selector Table system to determine how to create
// queries based on the blackboard variable.
//
// Also, all blackboard values must be lowercased! No convert to lower is
// perform when assigning values to the blackboard.
//
//*****************************************************************************
function RegisterVehicleBlackBoardAttributes()
{	
	Assert(IsVehicle(self), "RegisterVehicleBlackBoardAttributes: Should only be called on vehicles");
	
	Blackboard::RegisterBlackBoardAttribute(self,"_speed",undefined,&BB_GetSpeed);   if( IsActor(self) )    {    /#self TrackBlackBoardAttribute("_speed");#/    };
	Blackboard::RegisterBlackBoardAttribute(self,"_enemy_yaw",undefined,&BB_VehGetEnemyYaw);   if( IsActor(self) )    {    /#self TrackBlackBoardAttribute("_enemy_yaw");#/    };
}

function BB_GetSpeed()
{
	velocity = self GetVelocity();
	return Length( velocity );
}


function BB_VehGetEnemyYaw()
{	
	enemy = self.enemy;
	
	if( !IsDefined( enemy ) )
		return 0;
	
	toEnemyYaw = VehGetPredictedYawToEnemy( self, 0.2 );

	return toEnemyYaw;
}

function VehGetPredictedYawToEnemy( entity, lookAheadTime )
{
	// don't run this more than once per frame
	if( IsDefined(entity.predictedYawToEnemy) && IsDefined(entity.predictedYawToEnemyTime) && entity.predictedYawToEnemyTime == GetTime() )
		return entity.predictedYawToEnemy;

	selfPredictedPos = entity.origin;
	moveAngle = entity.angles[1] + entity getMotionAngle();
	selfPredictedPos += (cos( moveAngle ), sin( moveAngle ), 0) * 200.0 * lookAheadTime;

	yaw = VectorToAngles(entity.enemy.origin - selfPredictedPos)[1] - entity.angles[1];
	yaw = AbsAngleClamp360( yaw );
	
	// cache
	entity.predictedYawToEnemy = yaw;
	entity.predictedYawToEnemyTime = GetTime();
	
	return yaw;
}