From da8f828e2d8be389a06047715aaa44f02c41083b Mon Sep 17 00:00:00 2001
From: Milan Nikolic <gen2brain@gmail.com>
Date: Fri, 8 Dec 2017 15:26:54 +0100
Subject: [PATCH] Add web template and mainloop js

---
 raylib/external/scripts/emcc-generate-js.sh |   5 +-
 raylib/external/web/index.html              | 240 ++++++++++++++++++++
 raylib/external/web/mainloop.js             |   7 +
 3 files changed, 250 insertions(+), 2 deletions(-)
 create mode 100644 raylib/external/web/index.html
 create mode 100644 raylib/external/web/mainloop.js

diff --git a/raylib/external/scripts/emcc-generate-js.sh b/raylib/external/scripts/emcc-generate-js.sh
index be71a38..bea2a78 100755
--- a/raylib/external/scripts/emcc-generate-js.sh
+++ b/raylib/external/scripts/emcc-generate-js.sh
@@ -1,5 +1,6 @@
 #!/bin/sh
 
+BASE_DIR="${GOPATH}/src/github.com/gen2brain/raylib-go/raylib"
 EMCC_EXPORT="['_InitWindow','_CloseWindow','_WindowShouldClose','_IsWindowMinimized','_ToggleFullscreen','_SetWindowIcon','_SetWindowTitle','_SetWindowPosition','_SetWindowMonitor','_SetWindowMinSize','_GetScreenWidth','_GetScreenHeight','_ShowCursor','_HideCursor','_IsCursorHidden','_EnableCursor','_DisableCursor','_ClearBackground','_BeginDrawing','_EndDrawing','_Begin2dMode','_End2dMode','_Begin3dMode','_End3dMode','_BeginTextureMode','_EndTextureMode','_GetMouseRay','_GetWorldToScreen','_GetCameraMatrix','_SetTargetFPS','_GetFPS','_GetFrameTime','_GetHexValue','_GetColor','_ColorToFloat','_Vector3ToFloat','_MatrixToFloat','_Vector3Zero','_Vector3One','_MatrixIdentity','_ShowLogo','_SetConfigFlags','_TraceLog','_TakeScreenshot','_GetRandomValue','_StorageSaveValue','_StorageLoadValue','_IsKeyPressed','_IsKeyDown','_IsKeyReleased','_IsKeyUp','_GetKeyPressed','_SetExitKey','_IsGamepadAvailable','_IsGamepadName','_IsGamepadButtonPressed','_IsGamepadButtonDown','_IsGamepadButtonReleased','_IsGamepadButtonUp','_GetGamepadButtonPressed','_GetGamepadAxisCount','_GetGamepadAxisMovement','_IsMouseButtonPressed','_IsMouseButtonDown','_IsMouseButtonReleased','_IsMouseButtonUp','_GetMouseX','_GetMouseY','_GetMousePosition','_SetMousePosition','_GetMouseWheelMove','_GetTouchX','_GetTouchY','_GetTouchPosition','_SetGesturesEnabled','_IsGestureDetected','_GetGestureDetected','_GetTouchPointsCount','_GetGestureHoldDuration','_GetGestureDragVector','_GetGestureDragAngle','_GetGesturePinchVector','_GetGesturePinchAngle','_SetCameraMode','_UpdateCamera','_SetCameraPanControl','_SetCameraAltControl','_SetCameraSmoothZoomControl','_SetCameraMoveControls','_DrawPixel','_DrawPixelV','_DrawLine','_DrawLineV','_DrawLineEx','_DrawLineBezier','_DrawCircle','_DrawCircleGradient','_DrawCircleV','_DrawCircleLines','_DrawRectangle','_DrawRectangleRec','_DrawRectanglePro','_DrawRectangleGradientV','_DrawRectangleGradientH','_DrawRectangleGradientEx','_DrawRectangleV','_DrawRectangleLines','_DrawRectangleT','_DrawTriangle','_DrawTriangleLines','_DrawPoly','_DrawPolyEx','_DrawPolyExLines','_CheckCollisionRecs','_CheckCollisionCircles','_CheckCollisionCircleRec','_GetCollisionRec','_CheckCollisionPointRec','_CheckCollisionPointCircle','_CheckCollisionPointTriangle','_LoadImage','_LoadImageEx','_LoadImagePro','_LoadImageRaw','_LoadTexture','_LoadTextureFromImage','_LoadRenderTexture','_UnloadImage','_UnloadTexture','_UnloadRenderTexture','_GetImageData','_GetTextureData','_UpdateTexture','_SaveImageAs','_ImageToPOT','_ImageFormat','_ImageAlphaMask','_ImageDither','_ImageCopy','_ImageCrop','_ImageResize','_ImageResizeNN','_ImageText','_ImageTextEx','_ImageDraw','_ImageDrawText','_ImageDrawTextEx','_ImageFlipVertical','_ImageFlipHorizontal','_ImageColorTint','_ImageColorInvert','_ImageColorGrayscale','_ImageColorContrast','_ImageColorBrightness','_GenImageColor','_GenImageGradientV','_GenImageGradientH','_GenImageGradientRadial','_GenImageChecked','_GenImageWhiteNoise','_GenImagePerlinNoise','_GenImageCellular','_GenTextureMipmaps','_SetTextureFilter','_SetTextureWrap','_DrawTexture','_DrawTextureV','_DrawTextureEx','_DrawTextureRec','_DrawTexturePro','_GetDefaultFont','_LoadSpriteFont','_LoadSpriteFontEx','_UnloadSpriteFont','_DrawFPS','_DrawText','_DrawTextEx','_MeasureText','_MeasureTextEx','_DrawLine3D','_DrawCircle3D','_DrawCube','_DrawCubeV','_DrawCubeWires','_DrawCubeTexture','_DrawSphere','_DrawSphereEx','_DrawSphereWires','_DrawCylinder','_DrawCylinderWires','_DrawPlane','_DrawRay','_DrawGrid','_DrawGizmo','_LoadModel','_LoadModelFromMesh','_UnloadModel','_LoadMesh','_UnloadMesh','_GenMeshPlane','_GenMeshCube','_GenMeshSphere','_GenMeshHemiSphere','_GenMeshCylinder','_GenMeshTorus','_GenMeshKnot','_GenMeshHeightmap','_GenMeshCubicmap','_LoadMaterial','_LoadMaterialDefault','_UnloadMaterial','_DrawModel','_DrawModelEx','_DrawModelWires','_DrawModelWiresEx','_DrawBoundingBox','_DrawBillboard','_DrawBillboardRec','_CalculateBoundingBox','_CheckCollisionSpheres','_CheckCollisionBoxes','_CheckCollisionBoxSphere','_CheckCollisionRaySphere','_CheckCollisionRaySphereEx','_CheckCollisionRayBox','_GetCollisionRayMesh','_GetCollisionRayTriangle','_GetCollisionRayGround','_LoadText','_LoadShader','_UnloadShader','_GetShaderDefault','_GetTextureDefault','_GetShaderLocation','_SetShaderValue','_SetShaderValuei','_SetShaderValueMatrix','_SetMatrixProjection','_SetMatrixModelview','_GenTextureCubemap','_GenTextureIrradiance','_GenTexturePrefilter','_GenTextureBRDF','_BeginShaderMode','_EndShaderMode','_BeginBlendMode','_EndBlendMode','_GetVrDeviceInfo','_InitVrSimulator','_CloseVrSimulator','_IsVrSimulatorReady','_SetVrDistortionShader','_UpdateVrTracking','_ToggleVrMode','_BeginVrDrawing','_EndVrDrawing','_InitAudioDevice','_CloseAudioDevice','_IsAudioDeviceReady','_SetMasterVolume','_LoadWave','_LoadWaveEx','_LoadSound','_LoadSoundFromWave','_UpdateSound','_UnloadWave','_UnloadSound','_PlaySound','_PauseSound','_ResumeSound','_StopSound','_IsSoundPlaying','_SetSoundVolume','_SetSoundPitch','_WaveFormat','_WaveCopy','_WaveCrop','_GetWaveData','_LoadMusicStream','_UnloadMusicStream','_PlayMusicStream','_UpdateMusicStream','_StopMusicStream','_PauseMusicStream','_ResumeMusicStream','_IsMusicPlaying','_SetMusicVolume','_SetMusicPitch','_SetMusicLoopCount','_GetMusicTimeLength','_GetMusicTimePlayed','_InitAudioStream','_UpdateAudioStream','_CloseAudioStream','_IsAudioBufferProcessed','_PlayAudioStream','_PauseAudioStream','_ResumeAudioStream','_IsAudioStreamPlaying','_StopAudioStream','_SetAudioStreamVolume','_SetAudioStreamPitch']"
 RAYLIB_SRC=( "audio.c" "core.c" "mini_al.c" "models.c" "rlgl.c" "shapes.c" "text.c" "textures.c" "utils.c" "external/stb_vorbis.c" )
 RAYLIB_OBJ=( "audio.o" "core.o" "mini_al.o" "models.o" "rlgl.o" "shapes.o" "text.o" "textures.o" "utils.o" "external/stb_vorbis.o" )
@@ -8,6 +9,6 @@ for i in "${RAYLIB_SRC[@]}"; do
     emcc "${i}" -o "${i/.c}.o" -O1 -std=c99 -D_DEFAULT_SOURCE -fgnu89-inline -Wno-missing-braces -Wno-unused-function -Wno-unused-variable -Iexternal -Iexternal/glfw/include -DPLATFORM_WEB -DGRAPHICS_API_OPENGL_ES2
 done
 
-emcc `echo "${RAYLIB_OBJ[*]}"` -o raylib.js -g3 -s USE_GLFW=3 -s EXPORTED_FUNCTIONS=$EMCC_EXPORT
+emcc `echo "${RAYLIB_OBJ[*]}"` -o raylib.js --post-js "${BASE_DIR}/external/web/mainloop.js" -g3 -s USE_GLFW=3 -s EXPORTED_FUNCTIONS=$EMCC_EXPORT
 
-rm "${GOPATH}"/src/github.com/gen2brain/raylib-go/raylib/*.o "${GOPATH}"/src/github.com/gen2brain/raylib-go/raylib/external/*.o
+rm "${BASE_DIR}"/*.o "${BASE_DIR}"/external/*.o
diff --git a/raylib/external/web/index.html b/raylib/external/web/index.html
new file mode 100644
index 0000000..f61ee38
--- /dev/null
+++ b/raylib/external/web/index.html
@@ -0,0 +1,240 @@
+<!DOCTYPE html>
+<html lang="en-us">
+    <head>
+        <meta charset="utf-8">
+        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+
+        <title>raylib-go HTML5</title>
+
+        <meta name="title" content="raylib-go HTML5">
+        <meta name="description" content="New HTML5 videogame, developed using raylib-go videogames library">
+        <meta name="keywords" content="raylib, raylib-go, games, html5, programming, C, C++, Go, library, learn, videogames">
+        <meta name="viewport" content="width=device-width">
+
+        <link rel="shortcut icon" href="http://www.raylib.com/favicon.ico">
+
+        <style>
+            body {
+                font-family: arial;
+                margin: 0;
+                padding: none;
+            }
+
+            #header_part {
+                width: 100%;
+                height: 80px;
+                background-color: #888888;
+            }
+
+            #logo {
+                width:64px; 
+                height:64px; 
+                float:left; 
+                position:relative; 
+                margin:10px; 
+                background-image:url(http://www.raylib.com/common/img/raylib_logo_64x64.png);
+            }
+
+            .emscripten { padding-right: 0; margin-left: auto; margin-right: auto; display: block; }
+            div.emscripten { text-align: center; }      
+            div.emscripten_border { border: 1px solid black; }
+
+            /* the canvas *must not* have any border or padding, or mouse coords will be wrong */
+            canvas.emscripten { border: 0px none; background: black; }
+
+            #emscripten_logo {
+                display: inline-block;
+                margin: 0;
+            }
+
+            .spinner {
+                height: 30px;
+                width: 30px;
+                margin: 0;
+                margin-top: 20px;
+                margin-left: 20px;
+                display: inline-block;
+                vertical-align: top;
+                -webkit-animation: rotation .8s linear infinite;
+                -moz-animation: rotation .8s linear infinite;
+                -o-animation: rotation .8s linear infinite;
+                animation: rotation 0.8s linear infinite;
+                border-left: 5px solid black;
+                border-right: 5px solid black;
+                border-bottom: 5px solid black;
+                border-top: 5px solid red;
+
+                border-radius: 100%;
+                background-color: rgb(245, 245, 245);
+            }
+
+            @-webkit-keyframes rotation {
+                from {-webkit-transform: rotate(0deg);}
+                to {-webkit-transform: rotate(360deg);}
+            }
+            @-moz-keyframes rotation {
+                from {-moz-transform: rotate(0deg);}
+                to {-moz-transform: rotate(360deg);}
+            }
+            @-o-keyframes rotation {
+                from {-o-transform: rotate(0deg);}
+                to {-o-transform: rotate(360deg);}
+            }
+            @keyframes rotation {
+                from {transform: rotate(0deg);}
+                to {transform: rotate(360deg);}
+            }
+
+            #status {
+                display: inline-block;
+                vertical-align: top;
+                margin-top: 30px;
+                margin-left: 20px;
+                font-weight: bold;
+                color: rgb(40, 40, 40);
+            }
+
+            #progress {
+                height: 20px;
+                width: 30px;
+            }
+
+            #controls {
+                display: inline-block;
+                float: right;
+                vertical-align: top;
+                margin-top: 30px;
+                margin-right: 20px;
+            }
+
+            #output {
+                width: 100%;
+                height: 140px;
+                margin: 0 auto;
+                margin-top: 10px;
+                display: block;
+                background-color: black;
+                color: rgb(37, 174, 38);
+                font-family: 'Lucida Console', Monaco, monospace;
+                outline: none;
+            }
+        </style>
+
+    </head>
+    <body>
+
+        <div id="header_part">
+            <a id="logo" href="http://www.raylib.com"></a>
+
+            <div class="spinner" id="spinner"></div>
+            <div class="emscripten" id="status">Downloading...</div>
+
+            <span id="controls">
+                <span><input type="button" value="Fullscreen" onclick="Module.requestFullscreen(false, false)"></span>
+            </span>
+
+            <div class="emscripten">
+                <progress value="0" max="100" id="progress" hidden=1></progress>
+            </div>
+        </div>
+
+        <div class="emscripten_border">
+            <canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()"></canvas>
+        </div>
+
+        <textarea id="output" rows="8"></textarea>
+
+        <script type='text/javascript'>
+            var statusElement = document.getElementById('status');
+            var progressElement = document.getElementById('progress');
+            var spinnerElement = document.getElementById('spinner');
+
+            var Module = {
+                preRun: [],
+
+                postRun: [],
+
+                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
+                        }
+                    };
+                })(),
+
+                printErr: function(text) {
+                    if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
+                    if (0) { // XXX disabled for safety typeof dump == 'function') {
+                        dump(text + '\n'); // fast, straight to the real console
+                    } else {
+                        console.error(text);
+                    }
+                },
+
+                canvas: (function() {
+                    var canvas = document.getElementById('canvas');
+                    // As a default initial behavior, pop up an alert when webgl context is lost. To make your
+                    // application robust, you may want to override this behavior before shipping!
+                    // See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2
+                    canvas.addEventListener("webglcontextlost", function(e) { alert('WebGL context lost. You will need to reload the page.'); e.preventDefault(); }, false);
+                    return canvas;
+                })(),
+
+                setStatus: function(text) {
+                    if (!Module.setStatus.last) Module.setStatus.last = { time: Date.now(), text: '' };
+                    if (text === Module.setStatus.text) return;
+                    var m = text.match(/([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/);
+                    var now = Date.now();
+                    if (m && now - Date.now() < 30) return; // if this is a progress update, skip it if too soon
+                    if (m) {
+                        text = m[1];
+                        progressElement.value = parseInt(m[2])*100;
+                        progressElement.max = parseInt(m[4])*100;
+                        progressElement.hidden = false;
+                        spinnerElement.hidden = false;
+                    } else {
+                        progressElement.value = null;
+                        progressElement.max = null;
+                        progressElement.hidden = true;
+                        if (!text) spinnerElement.style.display = 'none';
+                    }
+                    statusElement.innerHTML = text;
+                },
+
+                totalDependencies: 0,
+                monitorRunDependencies: function(left) {
+                    this.totalDependencies = Math.max(this.totalDependencies, left);
+                    Module.setStatus(left ? 'Preparing... (' + (this.totalDependencies-left) + '/' + this.totalDependencies + ')' : 'All downloads complete.');
+                }
+            };
+
+            Module.setStatus('Downloading...');
+
+            window.onerror = function(event) {
+                Module.setStatus('Exception thrown, see JavaScript console');
+                spinnerElement.style.display = 'none';
+                Module.setStatus = function(text) {
+                    if (text) Module.printErr('[post-exception status] ' + text);
+                };
+            };
+        </script>
+
+        <script type='text/javascript'>
+            var rayscript = document.createElement('script');
+            rayscript.onload = function () {
+                var script = document.createElement('script');
+                script.src = 'YOUR_SCRIPT_NAME.js';
+                document.head.appendChild(script);
+            };
+
+            rayscript.src = 'raylib.js';
+            document.head.appendChild(rayscript);
+        </script>
+
+    </body>
+</html>
diff --git a/raylib/external/web/mainloop.js b/raylib/external/web/mainloop.js
new file mode 100644
index 0000000..9c3a3d0
--- /dev/null
+++ b/raylib/external/web/mainloop.js
@@ -0,0 +1,7 @@
+function _emscripten_set_main_loop_go(fps, simulateInfiniteLoop) {
+    if (_go_update_function !== undefined && typeof _go_update_function == 'function') {
+        _emscripten_set_main_loop(_go_update_function, fps, simulateInfiniteLoop);
+    }
+}
+
+Module["_emscripten_set_main_loop_go"] = _emscripten_set_main_loop_go;