function map_range_node_value(node: ui_node_t, socket: ui_node_socket_t): string {
    let val: string = parser_material_parse_value_input(node.inputs[0]);
    let fmin: string = parser_material_parse_value_input(node.inputs[1]);
    let fmax: string = parser_material_parse_value_input(node.inputs[2]);
    let tmin: string = parser_material_parse_value_input(node.inputs[3]);
    let tmax: string = parser_material_parse_value_input(node.inputs[4]);

    let use_clamp: bool = node.buttons[0].default_value[0] > 0;

    let a: string = "((" + tmin + " - " + tmax + ") / (" + fmin + " - " + fmax + "))";
    let out_val: string = "(" + a + " * " + val + " + " + tmin + " - " + a + " * " + fmin + ")";
    if (use_clamp) {
        return "(clamp(" + out_val + ", " + tmin + ", " + tmax + "))";
    }
    else {
        return out_val;
    }
}

let map_range_node_def: ui_node_t = {
    id: 0,
    name: _tr("Map Range"),
    type: "MAPRANGE",
    x: 0,
    y: 0,
    color: 0xff62676d,
    inputs: [
        {
            id: 0,
            node_id: 0,
            name: _tr("Value"),
            type: "VALUE",
            color: 0xffa1a1a1,
            default_value: f32_array_create_x(0.5),
            min: 0.0,
            max: 1.0,
            precision: 100,
            display: 0
        },
        {
            id: 0,
            node_id: 0,
            name: _tr("From Min"),
            type: "VALUE",
            color: 0xffa1a1a1,
            default_value: f32_array_create_x(0.0),
            min: 0.0,
            max: 1.0,
            precision: 100,
            display: 0
        },
        {
            id: 0,
            node_id: 0,
            name: _tr("From Max"),
            type: "VALUE",
            color: 0xffa1a1a1,
            default_value: f32_array_create_x(1.0),
            min: 0.0,
            max: 1.0,
            precision: 100,
            display: 0
        },
        {
            id: 0,
            node_id: 0,
            name: _tr("To Min"),
            type: "VALUE",
            color: 0xffa1a1a1,
            default_value: f32_array_create_x(0.0),
            min: 0.0,
            max: 1.0,
            precision: 100,
            display: 0
        },
        {
            id: 0,
            node_id: 0,
            name: _tr("To Max"),
            type: "VALUE",
            color: 0xffa1a1a1,
            default_value: f32_array_create_x(1.0),
            min: 0.0,
            max: 1.0,
            precision: 100,
            display: 0
        }
    ],
    outputs: [
        {
            id: 0,
            node_id: 0,
            name: _tr("Value"),
            type: "VALUE",
            color: 0xffa1a1a1,
            default_value: f32_array_create_x(0.0),
            min: 0.0,
            max: 1.0,
            precision: 100,
            display: 0
        }
    ],
    buttons: [
        {
            name: _tr("use_clamp"),
            type: "BOOL",
            output: 0,
            default_value: f32_array_create_x(0),
            data: null,
            min: 0.0,
            max: 1.0,
            precision: 100,
            height: 0
        }
    ],
    width: 0,
    flags: 0
};