[feat]: initial commit

2026-05-03 02:09:13 -07:00 · 2026-05-03 02:09:13 -07:00 · 7b48f34e94
commit 7b48f34e94
24 changed files with 1354 additions and 0 deletions
--- a/source/main_web/index_template.html
+++ b/source/main_web/index_template.html
@ -0,0 +1,114 @@
+<!doctype html>
+<html lang="en-us">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+
+	<title>Odin + Raylib on the web</title>
+	<meta name="title" content="Odin + Raylib on the web">
+	<meta name="description" content="Make games using Odin + Raylib that work in the browser">
+	<meta name="viewport" content="width=device-width">
+
+	<style>
+		body { 
+			margin: 0px; 
+			overflow: hidden; 
+			background-color: black;
+		}
+		canvas.game_canvas { 
+			border: 0px none; 
+			background-color: black;
+			padding-left: 0;
+			padding-right: 0;
+			margin-left: auto;
+			margin-right: auto;
+			display: block;
+		}
+	</style>
+</head>
+<body>
+	<canvas class="game_canvas" id="canvas" oncontextmenu="event.preventDefault()" tabindex="-1" onmousedown="event.target.focus()" onkeydown="event.preventDefault()"></canvas>
+	<script type="text/javascript" src="odin.js"></script>
+	<script>
+		var odinMemoryInterface = new odin.WasmMemoryInterface();
+		odinMemoryInterface.setIntSize(4);
+		var odinImports = odin.setupDefaultImports(odinMemoryInterface);
+
+		// The Module is used as configuration for emscripten.
+		var Module = {
+			// This is called by emscripten when it starts up.
+			instantiateWasm: (imports, successCallback) => {
+				const newImports = {
+					...odinImports,
+					...imports
+				}
+
+				return WebAssembly.instantiateStreaming(fetch("index.wasm"), newImports).then(function(output) {
+					var e = output.instance.exports;
+					odinMemoryInterface.setExports(e);
+					odinMemoryInterface.setMemory(e.memory);
+					return successCallback(output.instance);
+				});
+			},
+			// This happens a bit after `instantiateWasm`, when everything is
+			// done setting up. At that point we can run code.
+			onRuntimeInitialized: () => {
+				var e = wasmExports;
+
+				// Calls any procedure marked with @init
+				e._start();
+
+				// See source/main_web/main_web.odin for main_start,
+				// main_update and main_end.
+				e.main_start();
+
+				function send_resize() {
+					var canvas = document.getElementById('canvas');
+					e.web_window_size_changed(canvas.width, canvas.height);
+				}
+
+				window.addEventListener('resize', function(event) {
+					send_resize();
+				}, true);
+
+				// This can probably be done better: Ideally we'd feed the
+				// initial size to `main_start`. But there seems to be a
+				// race condition. `canvas` doesn't have it's correct size yet.
+				send_resize();
+
+				// Runs the "main loop".
+				function do_main_update() {
+					if (!e.main_update()) {
+						e.main_end();
+
+						// Calls procedures marked with @fini
+						e._end();
+						return;
+					}
+					window.requestAnimationFrame(do_main_update);
+				}
+
+				window.requestAnimationFrame(do_main_update);
+			},
+			print: (function() {
+				var element = document.getElementById("output");
+				if (element) element.value = ''; // clear browser cache
+				return function(text) {
+					if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
+					console.log(text);
+					if (element) {
+					  element.value += text + "\n";
+					  element.scrollTop = element.scrollHeight; // focus on bottom
+					}
+				};
+			})(),
+			canvas: (function() {
+				return document.getElementById("canvas");
+			})()
+		};
+	</script>
+
+	<!-- Emscripten injects its javascript here -->
+	{{{ SCRIPT }}}
+</body>
+</html>