On Thu, Apr 26, 2012 at 1:54 PM, zestoi <[email protected]> wrote:
> the mapping in live is quite good for simple things. may well be enough for
> a lot of users. there should also really be a simpler way of using modifier
> states for shifted controls than resorting to javascript. the scripting used
> in vdj for example is oddly powerful for the syntax needed.
I disagree here, VDJ's syntax is horrible and the language itself is
probably not very feature complete. I know that is not as relevant for
normal (or even most power users), but no reason to re-write our own
just for that. The Javascript engine is actually a part of Qt.
One solution to make the syntax for scripts easier would be to use
CoffeeScript which compiles into JS.
Some Examples of CoffeeScript versus JavaScript:
CoffeeScript:
# Assignment:
number = 42
opposite = true
# Conditions:
number = -42 if opposite
# Functions:
square = (x) -> x * x
# Arrays:
list = [1, 2, 3, 4, 5]
# Objects:
math =
root: Math.sqrt
square: square
cube: (x) -> x * square x
# Splats:
race = (winner, runners...) ->
print winner, runners
# Existence:
alert "I knew it!" if elvis?
# Array comprehensions:
cubes = (math.cube num for num in list)
Javascript:
var cubes, list, math, num, number, opposite, race, square,
__slice = [].slice;
number = 42;
opposite = true;
if (opposite) {
number = -42;
}
square = function(x) {
return x * x;
};
list = [1, 2, 3, 4, 5];
math = {
root: Math.sqrt,
square: square,
cube: function(x) {
return x * square(x);
}
};
race = function() {
var runners, winner;
winner = arguments[0], runners = 2 <= arguments.length ?
__slice.call(arguments, 1) : [];
return print(winner, runners);
};
if (typeof elvis !== "undefined" && elvis !== null) {
alert("I knew it!");
}
cubes = (function() {
var _i, _len, _results;
_results = [];
for (_i = 0, _len = list.length; _i < _len; _i++) {
num = list[_i];
_results.push(math.cube(num));
}
return _results;
})();
It's just a thought.
Another option would be to include a UI in the MIDI mapper that
resembles traktor's modifier system which generates Javascript, but
that could lead to all sorts of problems if a user were to modify the
script then try to fix it in the UI later.
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