I'm developing a 3D game in LWJGL. I have a player class and a monster class and I need the monster class to chase the player when the player is within a certain distance. For that I have the monster directional vector (let's call it monDirVector) and the directional vector that points from the monster to the player (let's call it dirToPlayer)
So the way my monster class works is that it increments its current rotation to match a target angle (this way I can simulate the walking + turning animation). Given this I need to calculate the target angle so that the monDirVector overlaps the dirToPlayer making the monster walk right towards the player.
How would I go about this?
I pretty much need to get the cº angle and assign it as the target angle for the monster. The aº is the monster current rotation and the bº is the angle between the two vectors. Both of these are known. Please notice that the monster can be oriented any way and the player can be in any quadrant relative to the monster. This stands for a problem because I can't simply subtract the angle towards the player to the current rotation of the monster.
I would really apreciate if someone helped me.