TapestryEngine

A 2D Platformer Game Engine
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0d7e75cfa6439ee0bae376ec0028f4d2ecfd694f.svn-base (2207B)

      1 #ifndef ACTORCOLLISION_H
      2 #define ACTORCOLLISION_H
      3 
      4 #include "Utils.h"
      5 #include "Console.h"
      6 #include "DiagnosticDraw.h"
      7 #include "Event.h"
      8 #include "Actor.h"
      9 
     10 #define MAX_ACTORS 1024
     11 
     12 #define CELLS_X 10
     13 #define	CELLS_Y 4
     14 #define CELL_COUNT (CELLS_X*CELLS_Y)
     15 
     16 class SpatialMonitor : public EventReceiver
     17 {
     18 public:
     19 
     20 	SpatialMonitor() : mActorCount(0), mAdjacentActorCount(0)
     21 	{
     22 	}
     23 
     24 	SpatialMonitor(int worldH, int worldW) : mActorCount(0), mAdjacentActorCount(0)
     25 	{
     26 		PartitionCells(worldH, worldW);
     27 	}
     28 
     29 	bool VecLogActor(Actor& act)
     30 	{
     31 		//mvActors.push_back( &act );
     32 		//act.SetSpatID(mActorCount);
     33 		mActorCount += 1;
     34 		return true;
     35 	}
     36 
     37 	int* GetAdjacentCells(int cellnum, int cells[9]);
     38 
     39 	bool LogActor(Actor& act); //Logs an actor with the spatial monitor. called on program startup 
     40 
     41 	bool EventProcess(Event eve);
     42 
     43 	SDL_Rect GetCell(int i) //Gets the cell rect of a cell number
     44 	{
     45 		return mCells[i];
     46 	}
     47 
     48 protected:
     49 
     50 	bool PartitionCells(int worldH, int worldW); //divides the level into cells based on macro parameters
     51 
     52 	bool GetActorsInCell(int cellnum);
     53 
     54 	bool GetAdjacentActors(int cellnum);
     55 
     56 	bool DetectActorCollision(int id1, int id2); //checks two logged actors for intersection
     57 
     58 	bool DetectRectSensors(SDL_Rect* sensor, int detectorID, int foreignID); //Called in HandleRectSensors, checks given rectangle for intersects
     59 
     60 	int UpdateActorCell(int id); //Updates the the cell number that contains a logged actor, Called when an MOVED_THIS_FRAME event is processed
     61 
     62 	int GetActorCell(int id) //Gets the cell number of an actor
     63 	{
     64 		return mActorCells[id];
     65 	}
     66 
     67 	//int* GetAdjacentCells(int cellnum, int cells[9]); //populates and returns cells[9] with the cell numbers of cellnum and the 8 surrounding cells
     68 
     69 	bool HandleCollisions(int CallerID); //Called in event process, finds the actors in the cells adjacent to the cell of CallerID and checks them for collision with CallerID
     70 	
     71 	bool HandleRectSensors(SDL_Rect* sensor, int CallerID, SensorType SeType);
     72 
     73 	bool TestBlockers(SDL_Rect* sensor, int CallerID);
     74 
     75 
     76 	Actor* mActors[MAX_ACTORS];
     77 	int mActorCells[MAX_ACTORS];
     78 	SDL_Rect  mCells[CELL_COUNT];
     79 	int mActorCount;
     80 	int mAdjacentActorIDs[MAX_ACTORS];
     81 	int mAdjacentActorCount;
     82 };
     83 
     84 #endif
     85