CODEWITHSUNDEEP
luaphysicsbox2d
Elliot Bonneville
Elliot Bonneville

Reputation: 53301

Lua/Box2D: Apply velocity in a direction

How do I apply velocity in a forward direction relative to an object's current velocity using Lua and Box2D?

I'm trying to figure this out. Here's what I have so far: to get the object's current velocity vector, you need to subtract its last position from its current position. Then I can apply that to the object's velocity somehow. But how?

Upvotes: 2

Views: 935

Answers (1)

Alex
Alex

Reputation: 15333

Box2D supplies a function b2Vec2 GetLinearVelocity() that you can use to get the velocity of a body. There is also SetLinearVelocity(const b2Vec2&); that you can use to apply a velocity.

How this all ties in to your Lua code is up to you. Without more information there's not much advice I can give you for that.

Upvotes: 1

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