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So I have a character on screen, who can move left and right using the designated keys but can not move upwards until the character reaches a certain point in the screen(a ladder placed at the end). Once the character reaches this ladder, the user can press UP to climb up, however whilst they are climbing they are also able to move left and right using the keys assigned. Is there any way to make the left and right key command void whilst in the vicinity of the ladder, only being able to go up and then once passed up the ladder, the keys are then usable?