 The team made use of Havok's Behavior toolset for character animation, which allows for a greater fluidity between the character's movements of walking, running and sprinting, and also increases the efficiency of the third-person camera option which had been criticized in Oblivion. The toolset allows interactions between the player and NPCs to take place in real-time; in Oblivion, when the player went to interact with an NPC, time would freeze and the camera would zoom in on the NPC's face. In Skyrim, NPCs can move around and make body gestures while conversing with the player. Children are present in the game, and their presence is handled similarly as in Fallout 3 in that they cannot be harmed by the player in any way since depictions of violence involving children in video games is a controversial and largely-debated issue. Skyrim makes use of the Radiant AI artificial intelligence system that was created for Oblivion, and it has been updated to allow NPCs to "do what they want under extra parameters". The updated system allows for greater interaction between NPCs and their environments; NPCs can perform tasks such as farming, milling and mining in the game world, and will react with each other.
