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static voidspawn_magic_missile (PELEMENT ElementPtr){#define MAGIC_MISSILE_SPEED DISPLAY_TO_WORLD(40)	COUNT orig_facing;	SIZE delta_facing;	STARSHIPPTR StarShipPtr;	MISSILE_BLOCK MissileBlock;	HELEMENT hMissile;	COUNT real_angle;	GetElementStarShip (ElementPtr, &StarShipPtr);	MissileBlock.farray = missileGraphicsHack;	MissileBlock.face = orig_facing = StarShipPtr->ShipFacing;	if ((delta_facing = TrackShip (ElementPtr, &MissileBlock.face)) > 0)	{		if(ElementPtr->hTarget)		{			ELEMENTPTR EnemyPtr;			COUNT num_frames;			SIZE delta_x, delta_y;			LockElement (ElementPtr->hTarget, &EnemyPtr);			delta_x = EnemyPtr->next.location.x					- ElementPtr->next.location.x;			delta_x = WRAP_DELTA_X (delta_x);			delta_y = EnemyPtr->next.location.y					- ElementPtr->next.location.y;			delta_y = WRAP_DELTA_Y (delta_y);				num_frames = (square_root ((long)delta_x * delta_x					+ (long)delta_y * delta_y)) / MAGIC_MISSILE_SPEED;			if (num_frames == 0)				num_frames = 1;				GetNextVelocityComponents (&EnemyPtr->velocity,					&delta_x, &delta_y, num_frames);				delta_x = (EnemyPtr->next.location.x + (delta_x / 2))					- ElementPtr->next.location.x;			delta_y = (EnemyPtr->next.location.y + (delta_y / 2))					- ElementPtr->next.location.y;				real_angle = NORMALIZE_ANGLE(ARCTAN (delta_x, delta_y) + (((TFB_Random() & 3) + 1) / 2) - 1);			MissileBlock.face = MissileBlock.index = ANGLE_TO_FACING (real_angle);			UnlockElement(ElementPtr->hTarget);		}		else MissileBlock.face = MissileBlock.index = NORMALIZE_FACING (orig_facing + delta_facing);	}	MissileBlock.cx = ElementPtr->next.location.x;	MissileBlock.cy = ElementPtr->next.location.y;	MissileBlock.sender = (ElementPtr->state_flags & (GOOD_GUY | BAD_GUY))			| IGNORE_SIMILAR;	MissileBlock.pixoffs = ARILOU_OFFSET;	MissileBlock.preprocess_func = NULL_PTR;	MissileBlock.blast_offs = 4;	MissileBlock.speed = MAGIC_MISSILE_SPEED;	MissileBlock.hit_points = 2;	MissileBlock.damage = 2;	MissileBlock.life = 12;	hMissile = initialize_missile (&MissileBlock);	if (hMissile)	{		ELEMENTPTR MissilePtr;		LockElement(hMissile, &MissilePtr);		SetElementStarShip (MissilePtr, StarShipPtr);		if(ElementPtr->hTarget)		{			SetVelocityComponents(&MissilePtr->velocity,					COSINE(real_angle, WORLD_TO_VELOCITY(MAGIC_MISSILE_SPEED)),					SINE(real_angle, WORLD_TO_VELOCITY(MAGIC_MISSILE_SPEED)));		}		UnlockElement(hMissile);		PutElement(hMissile);	}	ElementPtr->hTarget = 0;}