Add a GDScript template for VisualShaderNodeCustom

modules/gdscript/editor_templates/VisualShaderNodeCustom/basic.gd

@@ -0,0 +1,41 @@
+# meta-description: Visual shader's node plugin template
+
+@tool
+extends _BASE_
+class_name VisualShaderNode_CLASS_
+
+func _get_name() -> String:
+	return "_CLASS_"
+
+func _get_category() -> String:
+	return ""
+
+func _get_description() -> String:
+	return ""
+
+func _get_return_icon_type() -> int:
+	return PORT_TYPE_SCALAR
+
+func _get_input_port_count() -> int:
+	return 0
+
+func _get_input_port_name(port: int) -> String:
+	return ""
+
+func _get_input_port_type(port: int) -> int:
+	return PORT_TYPE_SCALAR
+
+func _get_output_port_count() -> int:
+	return 1
+
+func _get_output_port_name(port: int) -> String:
+	return "result"
+
+func _get_output_port_type(port: int) -> int:
+	return PORT_TYPE_SCALAR
+
+func _get_global_code(mode: Shader.Mode) -> String:
+	return ""
+
+func _get_code(input_vars: Array[String], output_vars: Array[String], mode: Shader.Mode, type: VisualShader.Type) -> String:
+	return output_vars[0] + " = 0.0;"