Shared physics code - meant to show sharing, not best practices

example/app.js

@@ -9,7 +9,8 @@ var express = require('express'),
     http = require('http'),
     path = require('path'),
     io = require('socket.io'),
-    garageServer = require('../lib/server/garageserver.io');
+    garageServer = require('../lib/server/garageserver.io'),
+    gamePhysics = require('./shared/core');
 
 var app = express();
 
@@ -24,6 +25,7 @@ app.configure(function () {
     app.use(app.router);
     app.use(express.static(path.join(__dirname, 'public')));
     app.use(express.static(path.join(__dirname, '..', 'client')));
+    app.use(express.static(path.join(__dirname, 'shared')));
 });
 
 app.configure('development', function () {
@@ -45,23 +47,5 @@ sockets.set('log level', 0);
 
 garageServer.createGarageServer(sockets,{
     logging: true,
-    onUpdatePlayerPhysics: function (state, inputs) {
-        var i = 0;
-        if (!state.x && !state.y) {
-            state.x = 0;
-            state.y = 0;
-        }
-        for (i = 0; i < inputs.length; i ++) {
-            if (inputs[i].input === 'left') {
-                state.x -= 1;
-            } else if (inputs[i].input === 'right') {
-                state.x += 1;
-            } else if (inputs[i].input === 'down') {
-                state.y += 1;
-            } else if (inputs[i].input === 'up') {
-                state.y -= 1;
-            }
-        }
-        return state;
-    }
+    onUpdatePlayerPhysics: gamePhysics.OnProcessGamePhysics
 });

example/public/javascripts/game.js

@@ -3,25 +3,7 @@ $(function () {
         logging: true,
         clientSidePrediction: true,
         interpolation: true,
-        onUpdatePlayerPhysics: function (state, inputs) {
-            var i = 0;
-            if (!state.x && !state.y) {
-                state.x = 0;
-                state.y = 0;
-            }
-            for (i = 0; i < inputs.length; i ++) {
-                if (inputs[i].input === 'left') {
-                    state.x -= 1;
-                } else if (inputs[i].input === 'right') {
-                    state.x += 1;
-                } else if (inputs[i].input === 'down') {
-                    state.y += 1;
-                } else if (inputs[i].input === 'up') {
-                    state.y -= 1;
-                }
-            }
-            return state;
-        },
+        onUpdatePlayerPhysics: OnProcessGamePhysics,
         onInterpolation: function (currentState, previousState, targetState, amount) {
             var interpolationState = {};
 

example/shared/core.js

@@ -0,0 +1,23 @@
+(function(exports){
+
+   exports.OnProcessGamePhysics = function (state, inputs) {
+       var i = 0;
+       if (!state.x && !state.y) {
+           state.x = 0;
+           state.y = 0;
+        }
+        for (i = 0; i < inputs.length; i ++) {
+            if (inputs[i].input === 'left') {
+                state.x -= 1;
+            } else if (inputs[i].input === 'right') {
+                state.x += 1;
+            } else if (inputs[i].input === 'down') {
+                state.y += 1;
+            } else if (inputs[i].input === 'up') {
+                state.y -= 1;
+            }
+        }
+        return state;
+    };
+
+})(typeof exports === 'undefined' ? window : exports);

example/views/layout.jade

@@ -7,6 +7,7 @@ html
     script(src='/garageserver.io.js')
     script(src='/javascripts/jquery-2.0.0.min.js')
     script(src='/javascripts/keyboard.min.js')
+    script(src='core.js')
     script(src='/javascripts/game.js')
   body
     block content