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/***************************************************************************
cpu.h - description
-------------------
begin : Sun Jan 6 2002
copyright : (C) 2001 by Michael Speck
email : kulkanie@gmx.net
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef __CPU_H
#define __CPU_H
/* set with scores for all evaluated criteria */
typedef struct {
int lines; /* score for completed lines */
int slope; /* score for profile of bowl content */
int holes; /* score for new holes */
int block; /* score for new piece tiles blocking existing holes */
int abyss; /* score for deep gaps */
int clear; /* used to built gap for triple/tetris clears */
} CPU_ScoreSet;
/* evaluation result for a piece */
typedef struct {
int id, x, y, rot; /* tested piece info */
int score; /* evaluation score (total of values in score_set) */
CPU_ScoreSet score_set; /* single evaluations (for debugging) */
} CPU_Eval;
/* CPU Data contains the original bowl and piece to be evaluated and internal
* data to do so. After testing and evaluating all positions of the piece in
* the bowl, the best position is set in dest_*.
*/
typedef struct {
/* current piece+bowl information set by bowl_quick_game()
* before calling cpu_analyze_data() */
int style; /* defensive, normal, aggressive */
int bowl_w, bowl_h; /* must be BOWL_WIDTH and BOWL_HEIGHT */
int piece_id, preview_id, hold_active, hold_id;
int original_bowl[BOWL_WIDTH][BOWL_HEIGHT]; /* original bowl content: 0 - empty, 1 - tile */
CPU_ScoreSet base_scores; /* basic multipliers for evaluated criteria */
/* internal stuff for analysis */
int bowl[BOWL_WIDTH][BOWL_HEIGHT]; /* this bowl is used to actually compute stuff */
Block_Mask *piece; /* actual piece tested (pointer to block_masks) */
/* result */
int use_hold; /* 1 if result belongs to hold (or preview if empty) piece */
CPU_Eval result;
} CPU_Data;
/** Analyze cpu_data.original_bowl and cpu_data.original_piece and find
* best position and rotation and store in cpu_data.result. */
void cpu_analyze_data(CPU_Data *cpu_data);
#endif
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