How does the game know where the gun is aiming?

The police stood ready, guns aimed at the front door, waiting for the men inside to attempt their escape.

Five guns were aiming toward them before they had drawn a single weapon!

His gun was in his hand but aimed at the ground.

"I never ask a man to do anything twice," Smoke replied,his gun still aimed in front of him.

She lowered the gun, which she'd been holding waist high, aimed right at him.

She drew a gun from the folds of her dress and aimed it at something behind me.

The Harvester, gun already aiming, could have dropped him where he stood.

The Shadow's gun, aiming ahead, was the first to start the fray.

He raised the gun; aiming between his father's eyes.