If you're looking to enhance your skills in Math for Game Developers, check out this series on YouTube: https://www.youtube.com/watch?v=sKCF8A3XGxQ&list=PLW3Zl3wyJwWOpdhYedlD-yCB7WQoHf-My&index=1
One important aspect is using vectors. It's recommended to store the orientation or facing angle of characters or entities as a 3-dimensional vector, such as new THREE.Vector3( x, y, z ) in THREE.js.
To determine the direction from object A to object B relative to A, you can use the following code:
var direction = posB.clone().sub( posA )
This ensures that position B is cloned before subtraction to avoid altering its original value, and then subtracted from position A.
Afterwards, if the vector has significant length, it may be necessary to normalize it for certain calculations, like multiplying by a thrust force:
direction.normalize()
Once normalized, you can perform actions like:
posA.add( direction.clone().multiplyScalar( 10.0 ) );
This will result in moving posA towards posB by 10 units in space.
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