game.h

   1
   2 /**
   3  *
   4  * Tennix! SDL Port
   5  * Copyright (C) 2003, 2007 Thomas Perl <thp@perli.net>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  20  * MA  02110-1301, USA.
  21  *
  22  **/
  23
  24 #ifndef __GAME_H
  25 #define __GAME_H
  26
  27 #include <math.h>
  28 #include "tennix.h"
  29
  30 typedef unsigned char bool;
  31 enum {
  32     false,
  33     true
  34 };
  35
  36 typedef struct {
  37     float x;
  38     float y;
  39     float move_x;
  40     float move_y;
  41     float jump;
  42 } Ball;
  43
  44 typedef struct {
  45     float x;
  46     float y;
  47     unsigned char state;
  48     unsigned int score;
  49     unsigned char responsible; /* responsible for the next fault (if any) */
  50 } Player;
  51
  52 typedef struct {
  53     Ball ball;
  54     Ball ground;
  55     Player player1;
  56     Player player2;
  57     float phase;
  58     unsigned int time;
  59     bool was_stopped;
  60 } GameState;
  61
  62 #define PI 3.1415
  63
  64 #define GAME_TICKS 15
  65
  66 #define GROUND_PHASE 0.4
  67 #define PHASE_AMP 3.2
  68
  69 #define BALL_JUMP_MIN 4
  70 #define BALL_JUMP_MAX 10
  71 #define BALL_DEFAULT_SPEED 3.0
  72
  73 #define GAME_X_MIN 41.0*2
  74 #define GAME_X_MAX 270.0*2
  75 #define GAME_X_MID ((GAME_X_MIN+GAME_X_MAX)/2)
  76
  77 #define GAME_Y_MIN 20.0*2+75
  78 #define GAME_Y_MAX 150.0*2+75
  79 #define GAME_Y_MID ((GAME_Y_MIN+GAME_Y_MAX)/2)
  80
  81 #define PLAYER_Y_MIN 0.0
  82 #define PLAYER_Y_MAX 1.0*HEIGHT
  83
  84 #define IS_OUT_Y(y) (y<GAME_Y_MIN || y>GAME_Y_MAX)
  85 #define IS_OUT_X(x) (x<GAME_X_MIN || x>GAME_X_MAX)
  86
  87 #define PLAYER_AREA 10.0*2
  88 #define IS_NEAR_Y(py,by) (fabsf(py+(PLAYER_AREA/2)-by)<PLAYER_AREA)
  89
  90 #define PLAYER_STATE_MAX 10
  91 #define PLAYER_POWERSHOT 8.2
  92
  93 void game();
  94 void render( GameState*);
  95 bool step( GameState*);
  96 void limit_value( float*, float, float);
  97 float get_phase( GameState*);
  98 float get_move_y( GameState*, unsigned char);
  99
 100 #endif
 101