Changeset 2844 for code/branches/gui/src/core/GameState.h

Timestamp:

Mar 25, 2009, 5:23:00 PM (16 years ago)

Author:

rgrieder

Message:

Implemented new GameState concept. It doesn't differ that much from the old one, but there's still lots of changes.
The most important change is that one GameState can occur multiple times in the hierarchy.

Short log:

• No RootGameState anymore. Simply the highest is root.
• Game::requestGameState(name) can refer to the parent, grandparent, great-grandparent, etc. or one of the children.
• Requested states are saved. So if you select "level", the next request (even right after the call) will be relative to "level"
• Game::popState() will simply unload the current one
• Re added Main.cc again because Game as well as GameState have been moved to the core
• Adapted all GameStates to the new system

Things should already work, except for network support because standalone only works with a little hack.
We can now start creating a better hierarchy.

File:

• code/branches/gui/src/core/GameState.h (modified) (4 diffs)

code/branches/gui/src/core/GameState.h

@@ -39 +39 @@
 
 #include <string>
-#include <vector>
 #include <map>
-#include <cassert>
-#include "Clock.h"
+#include "CorePrereqs.h"
 
 namespace orxonox
@@ -62 +60 @@
     class _CoreExport GameState
     {
-        friend class RootGameState;
-        // Hack
         friend class Game;
 
@@ -71 +67 @@
             Gives information about what the GameState is currently doing
         */
-        struct Operations
+        struct State
         {
-            unsigned active    : 1;
-            unsigned entering  : 1;
-            unsigned leaving   : 1;
-            unsigned running   : 1;
-            unsigned suspended : 1;
+            unsigned active       : 1;
+            unsigned activating   : 1;
+            unsigned deactivating : 1;
+            unsigned updating     : 1;
+            unsigned suspended    : 1;
         };
 
@@ -85 +81 @@
 
         const std::string& getName() const { return name_; }
-        const Operations getOperation() const { return this->operation_; }
-        bool isInSubtree(GameState* state) const;
-
-        GameState* getState(const std::string& name);
-        GameState* getRoot();
-        //! Returns the currently active game state
-        virtual GameState* getCurrentState();
-
-        virtual void requestState(const std::string& name);
+        const State getActivity() const    { return this->activity_; }
+        GameState* getParent() const       { return this->parent_; }
 
         void addChild(GameState* state);
         void removeChild(GameState* state);
-        void removeChild(const std::string& name);
 
     protected:
-        virtual void enter() = 0;
-        virtual void leave() = 0;
-        virtual void ticked(const Clock& time) = 0;
-
-        GameState* getActiveChild() { return this->activeChild_; }
-
-        void tickChild(const Clock& time) { if (this->getActiveChild()) this->getActiveChild()->tick(time); }
-
-        GameState* getParent() const     { return this->parent_; }
-        void setParent(GameState* state) { this->parent_ = state; }
+        virtual void activate() = 0;
+        virtual void deactivate() = 0;
+        virtual void update(const Clock& time) = 0;
 
     private:
-        //! Performs a transition to 'destination'
-        virtual void makeTransition(GameState* source, GameState* destination);
-
-        void grandchildAdded(GameState* child, GameState* grandchild);
-        void grandchildRemoved(GameState* grandchild);
-
-        void tick(const Clock& time);
-        void activate();
-        void deactivate();
+        void setParent(GameState* state) { this->parent_ = state; }
+        void setActivity(State activity);
+        void activateInternal();
+        void deactivateInternal();
+        void updateInternal(const Clock& time);
 
         const std::string                        name_;
-        Operations                               operation_;
+        State                                    activity_;
         GameState*                               parent_;
-        GameState*                               activeChild_;
-        //bool                                     bPauseParent_;
-        std::map<std::string, GameState*>        allChildren_;
-        std::map<GameState*, GameState*>         grandchildrenToChildren_;
+        std::map<std::string, GameState*>        children_;
     };
 }