Arm in 2d top down game

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1

I make a top down 2d gungeon like game. I don’t know how to make a arm system. I need to make a hand that would follow the camera along a limited arc and change its position depending on the direction of the cursor. Example in picture

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You can get the position of the player and the position of the mouse (or the camera, or wherever you want to aim at).

See Vector2 — Godot Engine (stable) documentation in English

There are various functions in Vector2 which will help here:

  • angle_to_point(vec2) - will tell you what angle you need to rotate the gun sprite
  • direction_to(vec2) - gives you a normalized (that is, length 1) vector that you can use for the bullet – multiply it by some value to change the speed
  • other similar stuff

You can do things like look at what angle_to_point() gives you to check whether the angle is within your restricted arcs. You can clamp that angle to your arcs, and use your clamped angle to rotate a vector to determine where to place your gun.

Everything you need should be in Vector2.