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author | FWoltermann@gmail.com <FWoltermann@gmail.com@076cb2c4-205e-83fd-5cf3-1be9aa105544> | 2011-12-08 14:53:40 +0000 |
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committer | FWoltermann@gmail.com <FWoltermann@gmail.com@076cb2c4-205e-83fd-5cf3-1be9aa105544> | 2011-12-08 14:53:40 +0000 |
commit | e33e19d0587146859d48a134ec9fd94e7b7ba5cd (patch) | |
tree | 69d048c8801858d2756ab3a487090a7a1b74bf14 /Stars45/SimObject.cpp | |
download | starshatter-e33e19d0587146859d48a134ec9fd94e7b7ba5cd.zip starshatter-e33e19d0587146859d48a134ec9fd94e7b7ba5cd.tar.gz starshatter-e33e19d0587146859d48a134ec9fd94e7b7ba5cd.tar.bz2 |
Initial upload
Diffstat (limited to 'Stars45/SimObject.cpp')
-rw-r--r-- | Stars45/SimObject.cpp | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/Stars45/SimObject.cpp b/Stars45/SimObject.cpp new file mode 100644 index 0000000..01a69f6 --- /dev/null +++ b/Stars45/SimObject.cpp @@ -0,0 +1,150 @@ +/* Project Starshatter 4.5
+ Destroyer Studios LLC
+ Copyright © 1997-2004. All Rights Reserved.
+
+ SUBSYSTEM: Stars.exe
+ FILE: SimObject.cpp
+ AUTHOR: John DiCamillo
+
+
+ OVERVIEW
+ ========
+ Simulation Object and Observer classes
+*/
+
+#include "MemDebug.h"
+#include "SimObject.h"
+
+#include "Graphic.h"
+#include "Light.h"
+#include "Scene.h"
+
+// +--------------------------------------------------------------------+
+
+SimObserver::~SimObserver()
+{
+ ListIter<SimObject> observed = observe_list;
+ while (++observed)
+ observed->Unregister(this);
+}
+
+void
+SimObserver::Observe(SimObject* obj)
+{
+ if (obj) {
+ obj->Register(this);
+
+ if (!observe_list.contains(obj))
+ observe_list.append(obj);
+ }
+}
+
+void
+SimObserver::Ignore(SimObject* obj)
+{
+ if (obj) {
+ obj->Unregister(this);
+ observe_list.remove(obj);
+ }
+}
+
+bool
+SimObserver::Update(SimObject* obj)
+{
+ if (obj)
+ observe_list.remove(obj);
+
+ return true;
+}
+
+const char*
+SimObserver::GetObserverName() const
+{
+ static char name[32];
+ sprintf(name, "SimObserver 0x%08x", (DWORD) this);
+ return name;
+}
+
+// +--------------------------------------------------------------------+
+
+SimObject::~SimObject()
+{
+ Notify();
+}
+
+// +--------------------------------------------------------------------+
+
+void
+SimObject::Notify()
+{
+ if (!notifying) {
+ notifying = true;
+
+ int nobservers = observers.size();
+ int nupdate = 0;
+
+ if (nobservers > 0) {
+ ListIter<SimObserver> iter = observers;
+ while (++iter) {
+ SimObserver* observer = iter.value();
+ observer->Update(this);
+ nupdate++;
+ }
+
+ observers.clear();
+ }
+
+ if (nobservers != nupdate) {
+ ::Print("WARNING: incomplete notify sim object '%s' - %d of %d notified\n",
+ Name(), nupdate, nobservers);
+ }
+
+ notifying = false;
+ }
+ else {
+ ::Print("WARNING: double notify on sim object '%s'\n", Name());
+ }
+}
+
+// +--------------------------------------------------------------------+
+
+void
+SimObject::Register(SimObserver* observer)
+{
+ if (!notifying && !observers.contains(observer))
+ observers.append(observer);
+}
+
+// +--------------------------------------------------------------------+
+
+void
+SimObject::Unregister(SimObserver* observer)
+{
+ if (!notifying)
+ observers.remove(observer);
+}
+
+// +--------------------------------------------------------------------+
+
+void
+SimObject::Activate(Scene& scene)
+{
+ if (rep)
+ scene.AddGraphic(rep);
+ if (light)
+ scene.AddLight(light);
+
+ active = true;
+}
+
+void
+SimObject::Deactivate(Scene& scene)
+{
+ if (rep)
+ scene.DelGraphic(rep);
+ if (light)
+ scene.DelLight(light);
+
+ active = false;
+}
+
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