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 <GL/glut.h>
  29
  30 #include "glext.h"
  31
  32 using namespace std;
  33
  34 #include "Game.h"
  35 #include "Creep.h"
  36 #include "Displayer.h"
  37 #include "LoseBar.h"
  38
  39 GLfloat LoseBar::bar;
  40 int LoseBar::fade_timer;
  41 int LoseBar::state;
  42
  43 void LoseBar::initialize (   )
  44 {
  45   bar = 0.0f;
  46   fade_timer = 0;
  47   state = LB_INACTIVE;
  48
  49 }
  50
  51 void LoseBar::gameStart (   )
  52 {
  53   // at the start of the game, fade to inactive
  54   if (state == LB_LOW_ALERT)
  55     enterLowToInactiveFade();
  56   else if (state == LB_HIGH_ALERT)
  57     enterHighToInactiveFade();
  58 }
  59
  60 void LoseBar::timeStep (   )
  61 {
  62   // update state
  63
  64   // if we're not on alert
  65   if (state
  66    & (LB_INACTIVE | LB_FADE_LOW_TO_INACTIVE | LB_FADE_HIGH_TO_INACTIVE)) {
  67
  68     // if we're done fading
  69     if (state & (LB_FADE_LOW_TO_INACTIVE | LB_FADE_HIGH_TO_INACTIVE)
  70      && --fade_timer == 0)
  71       state = LB_INACTIVE;
  72
  73     // if we should be on alert
  74     if (Creep::creep_freeze) {
  75       // no check for high alert is needed
  76       state = LB_LOW_ALERT;
  77       fade_timer = 0;
  78     }
  79
  80   // if we are on low alert
  81   } else if (state == LB_LOW_ALERT) {
  82
  83     // if we no longer should be on alert
  84     if (!Creep::creep_freeze)
  85       enterLowToInactiveFade();
  86
  87     // if we should enter high alert
  88     else if (Creep::loss_alarm <= GC_LOSS_DELAY_ELIMINATION)
  89       state = LB_HIGH_ALERT;
  90
  91   // if we are on high alert
  92   } else if (state == LB_HIGH_ALERT) {
  93
  94     // if we no longer should be on alert
  95     if (!Creep::creep_freeze)
  96       enterHighToInactiveFade();
  97
  98   // if we are fading because of a high alert reset
  99   } else if (state == LB_FADE_RESET_HIGH) {
 100     if (--fade_timer == 0)
 101       state = LB_HIGH_ALERT;
 102   }
 103
 104   // calculate the bar value
 105
 106   if (state & (LB_LOW_ALERT | LB_HIGH_ALERT))
 107     if (state & LB_LOW_ALERT)
 108       bar = (GC_LOSS_DELAY - Creep::loss_alarm)
 109        * (1.0f / (GLfloat) (GC_LOSS_DELAY - GC_LOSS_DELAY_ELIMINATION));
 110     else
 111       bar = (GC_LOSS_DELAY_ELIMINATION - Creep::loss_alarm)
 112        * (1.0f / (GLfloat) GC_LOSS_DELAY_ELIMINATION);
 113 }