share/state.c

   1 /*
   2  * Copyright (C) 2003 Robert Kooima
   3  *
   4  * NEVERBALL is  free software; you can redistribute  it and/or modify
   5  * it under the  terms of the GNU General  Public License as published
   6  * by the Free  Software Foundation; either version 2  of the License,
   7  * or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT  ANY  WARRANTY;  without   even  the  implied  warranty  of
  11  * MERCHANTABILITY or  FITNESS FOR A PARTICULAR PURPOSE.   See the GNU
  12  * General Public License for more details.
  13  */
  14
  15 #include "glext.h"
  16 #include "state.h"
  17 #include "config.h"
  18
  19 /*---------------------------------------------------------------------------*/
  20
  21 static float  state_time;
  22 static struct state *state;
  23
  24 float time_state(void)
  25 {
  26     return state_time;
  27 }
  28
  29 void init_state(struct state *st)
  30 {
  31     state = st;
  32 }
  33
  34 int goto_state(struct state *st)
  35 {
  36     if (state && state->leave)
  37         state->leave(state->gui_id);
  38
  39     state      = st;
  40     state_time =  0;
  41
  42     if (state && state->enter)
  43         state->gui_id = state->enter();
  44
  45     return 1;
  46 }
  47
  48 /*---------------------------------------------------------------------------*/
  49
  50 void st_paint(void)
  51 {
  52     int stereo  = config_get_d(CONFIG_STEREO);
  53
  54     if (state && state->paint)
  55     {
  56         if (stereo)
  57         {
  58             glDrawBuffer(GL_BACK_LEFT);
  59             config_clear();
  60             state->paint(state->gui_id, (float) (+stereo));
  61
  62             glDrawBuffer(GL_BACK_RIGHT);
  63             config_clear();
  64             state->paint(state->gui_id, (float) (-stereo));
  65         }
  66         else
  67         {
  68             config_clear();
  69             state->paint(state->gui_id, 0.0f);
  70         }
  71     }
  72 }
  73
  74 void st_timer(float dt)
  75 {
  76     state_time += dt;
  77
  78     if (state && state->timer)
  79         state->timer(state->gui_id, dt);
  80 }
  81
  82 void st_point(int x, int y, int dx, int dy)
  83 {
  84     if (state && state->point)
  85         state->point(state->gui_id, x, y, dx, dy);
  86 }
  87
  88 void st_stick(int a, int k)
  89 {
  90     if (state && state->stick)
  91         state->stick(state->gui_id, a, k);
  92 }
  93
  94 /*---------------------------------------------------------------------------*/
  95
  96 int st_click(int b, int d)
  97 {
  98     return (state && state->click) ? state->click(b, d) : 1;
  99 }
 100
 101 int st_keybd(int c, int d)
 102 {
 103     return (state && state->keybd) ? state->keybd(c, d) : 1;
 104 }
 105
 106 int st_buttn(int b, int d)
 107 {
 108     return (state && state->buttn) ? state->buttn(b, d) : 1;
 109 }
 110
 111 /*---------------------------------------------------------------------------*/