I am making a game for a game jam. An simple platformer. And i am wondering how do i implement a thing that you can climb on (the game is 2d). Like you dont have a mini ladder on a shelf! (I mean art, not how to do it)

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Hey, what Engine are you working in? I'll try to keep it general, my way of implementing it would be:

• Check for climbable objects to the side your character is facing (in a really small distance, you would want to touch the object)
• While a climbable object is nearby, disable gravity (and possibly jumping)
• move the character according to your up/down input
• re-enable gravity and jumping when no climbable object is to the side
• Profit!