Refactor edentities to not use separate length-trackers

This turns the array 'edentity' into a proper vector, and removes the need to
use a separate length-tracking variable and manually keep track of the actual
amount of edentities in the level by using the long-winded
'EditorData::GetInstance().numedentities'. This manual tracking was more
error-prone and much less maintainable.

editorclass::naddedentity() has been removed due to now functionally being the
same as editorclass::addedentity() (there's no more
'EditorData::GetInstance().numedentities' to not increment) and for also being
unused in the first place.

editorclass::copyedentity() has been removed because it was only used to shift
the rest of the edentities up manually, but now that we let C++ do all the
hard work it's no longer necessary.

desktop_version/src/editor.h

@@ -48,7 +48,7 @@ struct LevelMetaData
 };
 
 
-extern edentities edentity[3000];
+extern std::vector<edentities> edentity;
 extern scriptclass script;
 
 class EditorData
@@ -63,7 +63,6 @@ class EditorData
 	}
 
 
-	int numedentities;
 	std::string title;
 	std::string creator;
 
@@ -74,8 +73,7 @@ class EditorData
 private:
 
 
-	EditorData():
-	numedentities(0)
+	EditorData()
 	{
 	}
 
@@ -242,10 +240,6 @@ class editorclass{
 
 void addedentity(int xp, int yp, int tp, int p1=0, int p2=0, int p3=0, int p4=0, int p5=320, int p6=240);
 
-void naddedentity(int xp, int yp, int tp, int p1=0, int p2=0, int p3=0, int p4=0, int p5=320, int p6=240);
-
-void copyedentity(int a, int b);
-
 void removeedentity(int t);
 
 int edentat(int xp, int yp);
@@ -266,4 +260,4 @@ void editorinput(KeyPoll& key, Graphics& dwgfx, Game& game, mapclass& map,
 
 #endif /* EDITOR_H */
 
-#endif /* NO_CUSTOM_LEVELS */
+#endif /* NO_CUSTOM_LEVELS */