111 lines
3.1 KiB
JavaScript
111 lines
3.1 KiB
JavaScript
var PAUSE = plt.runtime.PAUSE;
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var makeClosure = plt.baselib.functions.makeClosure;
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var makeRational = plt.baselib.numbers.makeRational;
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var finalizeClosureCall = plt.baselib.functions.finalizeClosureCall;
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var makePrimitiveProcedure = plt.baselib.functions.makePrimitiveProcedure;
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var checkProcedure = plt.baselib.check.checkProcedure;
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var checkNonNegativeReal = plt.baselib.check.checkNonNegativeReal;
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// The default tick delay is 28 times a second.
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var DEFAULT_TICK_DELAY = makeRational(1, 28);
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EXPORTS['big-bang'] =
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makeClosure(
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'big-bang',
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plt.baselib.arity.makeArityAtLeast(1),
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function(MACHINE) {
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var initialWorldValue = MACHINE.env[MACHINE.env.length - 1];
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var handlers = [];
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for (var i = 1; i < MACHINE.argcount; i++) {
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// FIXME: typecheck for configuration options
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handlers.push(MACHINE.env[MACHINE.env.length - 1 - i]);
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}
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bigBang(MACHINE, initialWorldValue, handlers);
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});
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EXPORTS['on-tick'] =
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makePrimitiveProcedure(
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'on-tick',
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plt.baselib.lists.makeList(1, 2),
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function(MACHINE) {
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if (MACHINE.argcount === 1) {
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var f = checkProcedure(MACHINE, "on-tick", 0);
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return new OnTick(f, DEFAULT_TICK_DELAY);
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} else if (MACHINE.argcount === 2) {
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var f = checkProcedure(MACHINE, "on-tick", 0);
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var delay = checkNonNegativeReal(MACHINE, "on-tick", 1);
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return new OnTick(f, delay);
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}
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});
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// EXPORTS['on-tick'] =
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// new CasePrimitive(
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// 'on-tick',
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// [new PrimProc('on-tick',
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// 1,
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// false, false,
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// function(f) {
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// check(f, isFunction, "on-tick", "procedure", 1);
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// return new OnTickBang(f,
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// new PrimProc('', 1, false, false,
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// function(w) { return types.effectDoNothing(); }),
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// DEFAULT_TICK_DELAY);
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// }),
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// new PrimProc('on-tick',
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// 2,
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// false, false,
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// function(f, aDelay) {
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// check(f, isFunction, "on-tick", "procedure", 1, arguments);
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// check(aDelay, isNumber, "on-tick", "number", 2, arguments);
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// return new OnTickBang(f,
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// new PrimProc('', 1, false, false,
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// function(w) { return types.effectDoNothing(); }),
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// aDelay);
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// }) ]);
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// EXPORTS['on-tick!'] =
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// new CasePrimitive('on-tick!',
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// [new PrimProc('on-tick!',
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// 2,
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// false, false,
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// function(handler, effectHandler) {
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// check(handler, isFunction, "on-tick!", "procedure", 1, arguments);
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// check(effectHandler, isFunction, "on-tick!","procedure", 2, arguments);
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// return new OnTickBang(handler, effectHandler, DEFAULT_TICK_DELAY);
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// }),
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// new PrimProc('on-tick!',
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// 3,
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// false, false,
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// function(handler, effectHandler, aDelay) {
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// check(handler, isFunction, "on-tick!", "procedure", 1, arguments);
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// check(effectHandler, isFunction, "on-tick!","procedure", 2, arguments);
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// check(aDelay, isNumber, "on-tick!", "number", 3, arguments);
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// return new OnTickBang(handler, effectHandler, aDelay);
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// }) ]);
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