77 lines
2.2 KiB
JavaScript
77 lines
2.2 KiB
JavaScript
var odinMemoryInterface = new odin.WasmMemoryInterface();
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odinMemoryInterface.setIntSize(4);
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var odinImports = odin.setupDefaultImports(odinMemoryInterface);
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// The Module is used as configuration for emscripten.
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var Module = {
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// This is called by emscripten when it starts up.
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instantiateWasm: (imports, successCallback) => {
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const newImports = {
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...odinImports,
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...imports
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}
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return WebAssembly.instantiateStreaming(fetch("/web/static/apps/sim/index.wasm"), newImports).then(function(output) {
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var e = output.instance.exports;
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odinMemoryInterface.setExports(e);
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odinMemoryInterface.setMemory(e.memory);
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return successCallback(output.instance);
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});
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},
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// This happens a bit after `instantiateWasm`, when everything is
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// done setting up. At that point we can run code.
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onRuntimeInitialized: () => {
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var e = wasmExports;
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// Calls any procedure marked with @init
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e._start();
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// See source/main_web/main_web.odin for main_start,
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// main_update and main_end.
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e.main_start();
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function send_resize() {
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var canvas = document.getElementById('canvas');
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e.web_window_size_changed(canvas.width, canvas.height);
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}
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window.addEventListener('resize', function(event) {
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send_resize();
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}, true);
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// This can probably be done better: Ideally we'd feed the
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// initial size to `main_start`. But there seems to be a
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// race condition. `canvas` doesn't have it's correct size yet.
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send_resize();
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// Runs the "main loop".
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function do_main_update() {
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if (!e.main_update()) {
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e.main_end();
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// Calls procedures marked with @fini
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e._end();
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return;
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}
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window.requestAnimationFrame(do_main_update);
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}
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window.requestAnimationFrame(do_main_update);
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},
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print: (function() {
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var element = document.getElementById("output");
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if (element) element.value = ''; // clear browser cache
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return function(text) {
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if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
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console.log(text);
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if (element) {
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element.value += text + "\n";
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element.scrollTop = element.scrollHeight; // focus on bottom
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}
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};
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})(),
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canvas: (function() {
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return document.getElementById("canvas");
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})()
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};
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