how to make a key configuration?

Game Engine Game Engine Support and Discussion
1

how to make a key configuration so that player can change keyboard keys for forwards, backwards, jump…etc
is there anyone here have a .blend example on who to change keyboard key in game?
something like:
forwards = set a key
backwards = set a key
jump = set a key…etc

thank you for any help

2

This depends on your implementation. When you use the keyboard sensors you can reconfigure the sensors with python.

mappingA:


import bge


scene = bge.logic.getCurrentScene()


cube = scene.objects["Cube"]


cube.sensors["turn CCW"].key = bge.events.UPARROWKEY
cube.sensors["turn CW"].key = bge.events.DOWNARROWKEY

or another mappingB:


import bge


scene = bge.logic.getCurrentScene()


cube = scene.objects["Cube"]


cube.sensors["turn CCW"].key = bge.events.IKEY
cube.sensors["turn CW"].key = bge.events.KKEY

Executing such a script will override the default setting that you entered via GUI.

To store/restore the sensors of all objects you can use this code:


import bge


try:
    keyboardSettings = bge.logic.globalDict["keyboardSettings"]
except KeyError:
    keyboardSettings = {}
    bge.logic.globalDict["keyboardSettings"] = keyboardSettings




def storeKeyboardSensors(controller):
    if not all(sensor.positive for sensor in controller.sensors):
        return 
    
    scene = controller.owner.scene
    for object in scene.objects:
        sensorSettings = {}
        keyboardSettings[object.name] = sensorSettings 
        for sensor in object.sensors:
            try:
                sensorSettings [sensor.name] = sensor.key                
            except AttributeError:
                pass


def restoreKeyboardSensors(controller):
    if not all(sensor.positive for sensor in controller.sensors):
        return 


    scene = controller.owner.scene
    for objectName in keyboardSettings:
        object = scene.objects[objectName]
        sensorSettings = keyboardSettings[objectName]
        for sensorName in sensorSettings:
            try:
                object.sensors[sensorName].key = sensorSettings[sensorName]
            except KeyError:
                pass

The resulting change to the storage (globalDict) can be saved to file by using a saveActuator. You can load form file with the loadActuator. Be aware you need to store the keyboard mapping BEFORE saving and restore the mapping AFTER loading.

Remarks:

  • this code does not care additional keys (there can be up to two modifier keys)
  • this code does not provide an keyboard mapping editor (the snippet is simple code)
  • this mapping snippets expect “Cube” with the keyboard sensors “turn CCW” and “turn CW”

Here is a simple demo:

Attachments

SaveKeyboard.blend (433 KB)

3

thank you very much

4

.blend example on who to change keyboard key in game?

Yes, look into my sig and download key and mouse binds

5

thank you very much

6

players can change all keys to one key, they can make W for forwarded, backward,jump…etc is there a way to fix this , so if you repeat a key it won’t save the change and a message appears saying error repeated key or something.
thank you

7

I suggest you create a “keyboard remapper”. I mean an object or multiple objects with the sole purpose to allow the user to change the settings.

It should contain a save/loader to save and load the current mapping to file.
On top of that you need a remapping editor. The editor provides a GUI and logic to change the key mapping. It can check what key is already assigned and prevent using it again (e.g. by showing a dialog to confirm removing the old assignment and assign it to the new input). Obviously your editor need to know all mappings.