How a computer interact with human in games whereas it can't think?

Many games such as fighting games and other games that required us to fight with computer or to cooperate with computer to solve a mission. How can a cmputer knows what to do in a mission whereas it cannot think?How a computer interact with human in games whereas it can't think?
Computers CAN ';think.'; The AI is programmed to calculate and carry out commands that are based upon the actions of the player. Computers can recognize different objects in an environment and determine whether it is beneficial or detrimental to its survival. Like the user who would look for cover in a firefight to reload or to prevent from taking damage the AI will do the same. There can be set markers that tell it when to react in a certain way. For example if the AI is given a command to check its health throughout a game then further commands can be set so that it reacts a specific way at a certain percentage of health. If the health is below 20% then maybe the AI can be set to run away from the player and avoid it until another function is triggered. Another example could be if the AI notices it is out of bullets, it will find a cover object and hide behind it until it has reloaded. Actions like these make the AI seem more human.How a computer interact with human in games whereas it can't think?
it cannot think, but it can react and it has scripted events, so it looks at the game, and say you capture a flag, it can look at what you used to capture it and send the best thing to take it back.
Such capabilities are sup[plied by an AI sub program
It's called artificial intelligence.





Some games are programmed simply to have the same elements in the same place all the time, and simply to react in a pre-defined way if your character enters an established zone around them. Other games, which react to what you're doing different each time, have some type of artificial intelligence implemented.