gd: added input addon

addons/guide/modifiers/guide_modifier_positive_negative.gd

@@ -0,0 +1,65 @@
+## Limits inputs to positive or negative values.
+@tool
+class_name GUIDEModifierPositiveNegative
+extends GUIDEModifier
+
+enum LimitRange {
+	POSITIVE = 1,
+	NEGATIVE = 2
+}
+
+## The range of numbers to which the input should be limited
+@export var range:LimitRange = LimitRange.POSITIVE
+
+## Whether the X axis should be affected.
+@export var x:bool = true:
+	set(value):
+		if x == value:
+			return
+		x = value
+		emit_changed()
+		
+## Whether the Y axis should be affected.
+@export var y:bool = true:
+	set(value):
+		if y == value:
+			return
+		y = value
+		emit_changed()
+
+## Whether the Z axis should be affected.
+@export var z:bool = true:
+	set(value):
+		if z == value:
+			return
+		z = value
+		emit_changed()
+
+		
+
+func _modify_input(input:Vector3, delta:float, value_type:GUIDEAction.GUIDEActionValueType) -> Vector3:
+	if not input.is_finite():
+		return Vector3.INF
+		
+	match range:
+		LimitRange.POSITIVE:
+			return Vector3(
+				max(0, input.x) if x else input.x, \
+				max(0, input.y) if y else input.y, \
+				max(0, input.z) if z else input.z  \
+			)
+		LimitRange.NEGATIVE:
+			return Vector3(
+				min(0, input.x) if x else input.x, \
+				min(0, input.y) if y else input.y, \
+				min(0, input.z) if z else input.z  \
+			)
+	# should never happen
+	return input
+
+func _editor_name() -> String:
+	return "Positive/Negative"	
+
+
+func _editor_description() -> String:
+	return "Clamps the input to positive or negative values."