How can i create a trail for a ball?

Question

I want to create a straight line trail for a ball spawned in the scene. Particles2d creates a discontinuity in the trail as particles are emitted with gap between successive particles. How can I make a straight line trail with its width equal to width of the ball?

Answer 1

have you had a look at a Line2D?
you can simply set two points for your line. one would be Vector2(0, 0) and the second would be -ball_velocity.normalized() * line_length.
The second point uyou would need to set every physics frame.