gd: added input addon

addons/guide/inputs/guide_input.gd

@@ -0,0 +1,49 @@
+@tool
+@icon("res://addons/guide/inputs/guide_input.svg")
+## A class representing some actuated input.
+class_name GUIDEInput
+extends Resource
+
+## The current valueo f this input. Depending on the input type only parts of the 
+## returned vector may be relevant.
+var _value:Vector3 = Vector3.ZERO
+
+## The current input state. This will be set by GUIDE when the input is used.
+var _state:GUIDEInputState = null
+
+## Whether this input needs a reset per frame. _input is only called when
+## there is input happening, but some GUIDE inputs may need to be reset
+## in the absence of input.
+func _needs_reset() -> bool:
+	return false
+	
+## Resets the input value to the default value. Is called once per frame if
+## _needs_reset returns true.
+func _reset() -> void:
+	_value = Vector3.ZERO
+
+## Returns whether this input is the same input as the other input.
+func is_same_as(other:GUIDEInput) -> bool:
+	return false
+	
+## Called when the input is started to be used by GUIDE. Can be used to perform
+## initializations. The state object can be used to subscribe to input events
+## and to get the current input state.
+func _begin_usage() -> void :
+	pass
+	
+## Called, when the input is no longer used by GUIDE. Can be used to perform
+## cleanup.
+func _end_usage() -> void:
+	pass
+	
+	
+func _editor_name() -> String:
+	return ""
+	
+func _editor_description() -> String:
+	return ""
+	
+
+func _native_value_type() -> GUIDEAction.GUIDEActionValueType:
+	return -1