example.script

print "######################################";
print "# Demo for interpreter version " + VERSION + " #";
print "######################################";
print "";

// Usage:
//   cargo run <shape> [...dimensions]
//
//   shape       cube | sphere
//   dimensions  (cube) <width> <height> <depth>
//               (sphere) <radius>
//
// Example:
//   cargo run cube 2 3 5
//   cargo run sphere 12

// Constants
Pi = 3.14159265359;

if ARG_2 == nil {
    print "Usage:";
    print "  " + ARG_0 + " " + ARG_1 + " <shape> [...dimensions]";
    print "";
    print "  shape       cube | sphere";
    print "  dimensions  (cube) <width> <height> <depth>";
    print "              (sphere) <radius>";
    print "";
}

if ARG_2 != nil {
    if ARG_2 == "cube" {
        width = ARG_3;
        height = ARG_4;
        depth = ARG_5;


        if width == nil print "Please provide a width argument";
        if height == nil print "Please provide a height argument";
        if depth == nil print "Please provide a depth argument";

        if width != nil if height != nil if depth != nil {
            volume = width * height * depth;
            print "The volume of a " + width + "m " +
                                "x " + height + "m " +
                                "x " + depth + "m " +
                                "cube " +
                                "is " + volume + "m^3";
        }
    }

    if ARG_2 == "sphere" {
        radius = ARG_3;

        if radius == nil print "Please provide a radius argument";

        if radius != nil {
            volume = (4/3)*Pi*radius*radius;
            print "The volume of a sphere with radius " + radius + "m " +
                                                  "is " + volume + "m^3";
        }
    }

    if ARG_2 != "cube"
        if ARG_2 != "sphere"
            print "Unknown shape: " + ARG_2;
}