Changeset 1112 for code/branches/input/src/orxonox/Orxonox.cc

Timestamp:

Apr 19, 2008, 10:31:52 PM (17 years ago)

Author:

rgrieder

Message:

added calculate command
In the console, you can now type something like "calculate sin(cos(3+4) - 8)*7" or even "calculate 7>8" and you'll get the result as a double.
The parser was something I've written 3 years ago when I first used C++ (the parser is mainly C).

File:

• code/branches/input/src/orxonox/Orxonox.cc (modified) (6 diffs)

code/branches/input/src/orxonox/Orxonox.cc

@@ -54 +54 @@
 //#include "util/Sleep.h"
 #include "util/ArgReader.h"
+#include "util/FloatParser.h"
 
 // core
@@ -123 +124 @@
       InputBuffer* ib_;
   };
+
+  class Calculator
+  {
+  public:
+    static void calculate(std::string calculation)
+    {
+      char** useless = 0;
+      double result = 0.0;
+      bool success = parse_float((char* const)calculation.c_str(), useless, &result);
+      if (success)
+      {
+        if (result == 42.0)
+          std::cout << "Greetings from the restaurant at the end of the universe." << std::endl;
+        std::cout << "Result is: " << result << std::endl;
+      }
+      else
+        std::cout << "Cannot calculate expression: Parse error" << std::endl;
+    }
+  };
+  ConsoleCommandShortcut(Calculator, calculate, AccessLevel::None);
 
   /**
@@ -410 +431 @@
       return;
     }
+    Ogre::Root& ogreRoot = Ogre::Root::getSingleton();
+
 
     // Contains the times of recently fired events
@@ -429 +452 @@
           {
                   // Pump messages in all registered RenderWindows
+      // This calls the WindowEventListener objects.
       Ogre::WindowEventUtilities::messagePump();
 
@@ -452 +476 @@
       // don't forget to call _fireFrameStarted in ogre to make sure
       // everything goes smoothly
-      Ogre::Root::getSingleton()._fireFrameStarted(evt);
+      ogreRoot._fireFrameStarted(evt);
 
       // server still renders at the moment
       //if (mode_ != SERVER)
-      Ogre::Root::getSingleton()._updateAllRenderTargets(); // only render in non-server mode
+      ogreRoot._updateAllRenderTargets(); // only render in non-server mode
 
       // get current time
@@ -466 +490 @@
 
       // again, just to be sure ogre works fine
-      Ogre::Root::getSingleton()._fireFrameEnded(evt);
+      ogreRoot._fireFrameEnded(evt);
           }
   }