A branch of mathematics that studies triangles and the relationships between their sides and the angles between these sides.

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10
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2answers
7k views

How do I generate projectiles toward the mouse pointer? [duplicate]

I'm making a top-down space shooter where the player controls a ship and can aim and shoot using the mouse cursor. How can I fire bullets from the ship at the angle from the ship to the mouse cursor? ...
6
votes
3answers
2k views

How do I make an entity move in a direction?

I have an Entity instance which is updated every game tick. Let's just assume that entity moves forward constantly. I'd like to be able to give the entity's angle to a function that makes it move in ...
3
votes
1answer
124 views

determine collision angle on a rotating body

update: new diagram and updated description I have a contact listener set up to try and determine the side that a collision happened at relative to the a bodies rotation. One way to solve this is ...
0
votes
0answers
28 views

How to find optimal perpendicular axis of rotation vector to draw arrows?

I am drawing lines on the screen. Each line has a point (x,y,z) and a direction (u,v,w). I want to draw arrow heads on these lines, like two lines that start from (x,y,z) and leave at a 15 degree ...