crt.js

// The CRT sub-system.

define(["Node"], function (Node) {
    var importSymbols = function (symbolTable) {
        // Keyboard functions.
        symbolTable.addNativeFunction("KeyPressed", Node.booleanType, [], function (ctl) {
            return ctl.keyPressed();
        });
        symbolTable.addNativeFunction("ReadKey", Node.charType, [], function (ctl) {
            return ctl.readKey();
        });

        // Sound functions.
        symbolTable.addNativeFunction("Sound", Node.voidType, [Node.integerType],
                                      function (ctl, hz) {
            // Not implemented.
        });
        symbolTable.addNativeFunction("NoSound", Node.voidType, [], function (ctl) {
            // Not implemented.
        });
    };

    return {
        importSymbols: importSymbols
    };
});