Scripting The Button

Now, go to the script on your player and add an @onready variable for the ray cast and label similar to how the main_camera is. When you have @onready var your_var_name = you can just drag the node from the scene tree into the script, and it will automatically fill in the variable path and add $.

Next add the action for your interact button, like you did for the movement keys. E or F are good buttons for basic world interaction, and name it something like ‘interact’.

Finally, somewhere in your _physics_process(delta) function, probably after the jumping code, check if the input action “interact” was pressed this frame. If it was, get the collider from the ray cast and check if it’s a valid instance, then check if it’s in the “Button” group, and if it is set the label to visible.

if Input.is_action_just_pressed("interact"):
  var object = ray_cast.get_collider()
  if is_instance_valid(object):
    if object.is_in_group("Button"):
      label.visible = true

Boom! Interaction.

Scripted Button

Now if you play the game, look at the cube, and press your interaction button it should show text on screen. This is a game. What you have made is a game. It might not look like it, but if you had beautiful art it would.

If you made some 3D models of platforms, a button, a character, and added a skybox it would look like a real game. That’s truly the only difference. Well, that, and maybe a goal.

Next you should go join a game jam or go through our 3D racing game tutorial!

Contribute Donate