src/LoseBar.cxx

   1 /*
   2  * LoseBar.cxx
   3  * Daniel Nelson - 3/1/2
   4  *
   5  * Copyright (C) 2002  Daniel Nelson
   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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  * Daniel Nelson - aluminumangel.org
  22  * 174 W. 18th Ave.
  23  * Columbus, OH  43210
  24  *
  25  * Handles the losebar.
  26  */
  27
  28 #include "LoseBar.h"
  29
  30 #include <GL/glut.h>
  31
  32 #include "glext.h"
  33
  34 #include "Game.h"
  35 #include "Creep.h"
  36 #include "Displayer.h"
  37
  38 GLfloat LoseBar::bar;
  39 int LoseBar::fade_timer;
  40 int LoseBar::state;
  41
  42 void LoseBar::initialize (   )
  43 {
  44   bar = 0.0f;
  45   fade_timer = 0;
  46   state = LB_INACTIVE;
  47
  48 }
  49
  50 void LoseBar::gameStart (   )
  51 {
  52   // at the start of the game, fade to inactive
  53   if (state == LB_LOW_ALERT)
  54     enterLowToInactiveFade();
  55   else if (state == LB_HIGH_ALERT)
  56     enterHighToInactiveFade();
  57 }
  58
  59 void LoseBar::timeStep (   )
  60 {
  61   // update state
  62
  63   // if we're not on alert
  64   if (state
  65    & (LB_INACTIVE | LB_FADE_LOW_TO_INACTIVE | LB_FADE_HIGH_TO_INACTIVE)) {
  66
  67     // if we're done fading
  68     if (state & (LB_FADE_LOW_TO_INACTIVE | LB_FADE_HIGH_TO_INACTIVE)
  69      && --fade_timer == 0)
  70       state = LB_INACTIVE;
  71
  72     // if we should be on alert
  73     if (Creep::creep_freeze) {
  74       // no check for high alert is needed
  75       state = LB_LOW_ALERT;
  76       fade_timer = 0;
  77     }
  78
  79   // if we are on low alert
  80   } else if (state == LB_LOW_ALERT) {
  81
  82     // if we no longer should be on alert
  83     if (!Creep::creep_freeze)
  84       enterLowToInactiveFade();
  85
  86     // if we should enter high alert
  87     else if (Creep::loss_alarm <= GC_LOSS_DELAY_ELIMINATION)
  88       state = LB_HIGH_ALERT;
  89
  90   // if we are on high alert
  91   } else if (state == LB_HIGH_ALERT) {
  92
  93     // if we no longer should be on alert
  94     if (!Creep::creep_freeze)
  95       enterHighToInactiveFade();
  96
  97   // if we are fading because of a high alert reset
  98   } else if (state == LB_FADE_RESET_HIGH) {
  99     if (--fade_timer == 0)
 100       state = LB_HIGH_ALERT;
 101   }
 102
 103   // calculate the bar value
 104
 105   if (state & (LB_LOW_ALERT | LB_HIGH_ALERT))
 106     if (state & LB_LOW_ALERT)
 107       bar = (GC_LOSS_DELAY - Creep::loss_alarm)
 108        * (1.0f / (GLfloat) (GC_LOSS_DELAY - GC_LOSS_DELAY_ELIMINATION));
 109     else
 110       bar = (GC_LOSS_DELAY_ELIMINATION - Creep::loss_alarm)
 111        * (1.0f / (GLfloat) GC_LOSS_DELAY_ELIMINATION);
 112 }