Initial Prey Game integration support.

neo/prey/Prey/game_dda.h

@@ -0,0 +1,128 @@
+/*
+===============================================================================
+game_dda.h
+	This contains the functionality for a dynamic difficulty adjustment system,
+		as well as a statistic tracking system.
+===============================================================================
+*/
+#ifndef __GAME_DDA_H__
+#define __GAME_DDA_H__
+
+// DDA_Export Methods.
+enum hhDDAExport {
+	DDA_ExportTEXT,
+	DDA_ExportCSV,
+};
+
+typedef struct ddaDeath_s {
+	int		time;
+	idStr	location;
+} ddaDeath_t;
+
+const int DDA_INDEX_MAX = 16;
+
+//======================================================================================
+//======================================================================================
+//
+// NEW DDA SYSTEM
+//
+//======================================================================================
+//======================================================================================
+
+#define NUM_DAMAGES		8
+
+class hhDDAProbability {
+public:
+	hhDDAProbability();
+
+	void Save( idSaveGame *savefile ) const;
+	void Restore( idRestoreGame *savefile );
+
+	void AddDamage( int damage ); 
+	void AddSurvivalValue( int playerHealth );
+
+	float GetProbability( int value );
+	float GetSurvivalMean( void );
+
+	void AdjustDifficulty( float diff );
+	float GetIndividualDifficulty( void ) { return individualDifficulty; }
+
+	bool IsUsed( void ) { return bUsed; }
+
+protected:
+
+	void			CalculateProbabilityCurve();
+
+	bool			bUsed; // True if this probability instance is used (so the damage probability of later creatures doesn't influence earlier levels)
+
+	int				damages[NUM_DAMAGES];
+	int				damageRover;
+
+	float			survivalValues[NUM_DAMAGES];
+	int				survivalRover;
+
+	float			mean;
+	float			stdDeviation;
+
+	float			individualDifficulty;
+};
+
+/***********************************************************************
+  hhDDAManager.
+	Class that controls the DDA tracking and difficulty of the game.
+***********************************************************************/
+class hhDDAManager {
+public:
+	hhDDAManager();
+	~hhDDAManager();
+public:
+	void		Save( idSaveGame *savefile ) const;
+	void		Restore( idRestoreGame *savefile );
+
+	//Public difficulty functions/accessors..
+	float		GetDifficulty();					//Called to get current difficulty rating (0.0 - 1.0)
+	void		DifficultySummary();
+	void		ForceDifficulty( float newDifficulty ); // Force the difficulty to this value
+
+	void		RecalculateDifficulty( int updateFlags );
+
+	//Public DDA Notifications. (these are called to update the DDA system about activities happening in the game)
+	void		DDA_Heartbeat( hhPlayer* player );
+
+	void		DDA_AddDamage( int ddaIndex, int damage );
+	void		DDA_AddSurvivalHealth( int ddaIndex, int health );
+	void		DDA_AddDeath( hhPlayer *player, idEntity *attacker );
+
+	float		DDA_GetProbability( int ddaIndex, int value );
+
+	//Public DDA Exporting functions.  These are called to export DDA stats to either the console or a file.
+	void		Export( const char* filename );
+
+	void		PrintDDA( void );
+
+	//Public DDA Controls.  These are used to clear/reset the DDA system (on map-switching).
+	void		ClearTracking();
+
+protected:
+	//Protected Internal functions for exporting purposes.
+	void		ExportDDAData( idStr fileName, const char* header, const char *fileAddition, idList<idStr> data );
+	void		ExportLINData( idStr FileName );
+
+	//Protected Interal Difficulty 'Ticker'.  Difficulty system will re-evaluate whether to change diff here.
+	//o	void		DifficultyUpdate();
+
+	//Protected Internal Difficulty data.
+	bool				bForcedDifficulty;					// Used for testing, and Wicked mode
+	float				difficulty;							// Our current difficulty rating.
+	hhDDAProbability	ddaProbability[DDA_INDEX_MAX]; // CJR:  array of probabilites used in the DDA system
+
+	idList<idStr>		locationNameData;
+	idList<idStr>		locationData;
+	idList<int>			healthData;
+	idList<idStr>		healthSpiritData;
+	idList<idStr>		ammoData;
+	idList<idStr>		miscData;
+	idList<ddaDeath_t>	deathData;
+};
+
+#endif // __GAME_DDA_H__