In GameMaker, detecting keyboard input is a common task necessary for player control and other interactions. To check whether a specific key is pressed, released, or held down, you use GameMaker's built-in keyboard functions.
Here's an example of how to detect if a player is pressing the arrow keys:
keyboard_check function returns true if the key is currently being pressed. You can also use
keyboard_check_pressed to detect if a key has been pressed in the current step or
keyboard_check_released to detect if a key was just released.
For alphanumeric keys, you would use the ord() function to get the keycode:
It's important to note that these checks are typically done within the Step event of an object, as it allows you to continuously monitor the keyboard state each frame of the game.
For more complex input handling, you might want to create input maps or use arrays to manage multiple keys and their states.