@Richard Byron@Richard Byron explained well and gave a well-made sample code.
I think it's better to add additional information about the basic math.
I leaved out the wall collision.
Sorry for bad hand writing an drawing.
replaced http://gamedev.stackexchange.com/ with https://gamedev.stackexchange.com/
@Richard Byron explained well and gave a well-made sample code.
I think it's better to add additional information about the basic math.
I leaved out the wall collision.
Sorry for bad hand writing an drawing.
@Richard Byron explained well and gave a well-made sample code.
I think it's better to add additional information about the basic math.
I leaved out the wall collision.
Sorry for bad hand writing an drawing.
@Richard Byron explained well and gave a well-made sample code.
I think it's better to add additional information about the basic math.
I leaved out the wall collision.
Sorry for bad hand writing an drawing.