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FadeView.cpp
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1 /* Project nGenEx
2  Destroyer Studios LLC
3  Copyright © 1997-2004. All Rights Reserved.
4 
5  SUBSYSTEM: nGenEx.lib
6  FILE: FadeView.cpp
7  AUTHOR: John DiCamillo
8 
9 
10  OVERVIEW
11  ========
12  Fading Bitmap "billboard" Image View class
13 */
14 
15 #include "MemDebug.h"
16 #include "FadeView.h"
17 #include "Color.h"
18 #include "Window.h"
19 #include "Video.h"
20 #include "Screen.h"
21 #include "Game.h"
22 
23 // +--------------------------------------------------------------------+
24 
25 FadeView::FadeView(Window* c, double in, double out, double hold)
26 : View(c),
27 fade_in(in * 1000),
28 fade_out(out * 1000),
29 hold_time(hold * 1000),
30 step_time(0),
31 fast(1),
32 time(0)
33 {
34  state = StateStart;
35 }
36 
37 FadeView::~FadeView()
38 { }
39 
40 // +--------------------------------------------------------------------+
41 
42 void FadeView::FadeIn(double in) { fade_in = in * 1000; }
43 void FadeView::FadeOut(double out) { fade_out = out * 1000; }
44 void FadeView::FastFade(int fade_fast) { fast = fade_fast; }
45 void FadeView::StopHold()
46 {
47  //Print(" FadeView::StopHold()\n");
48  hold_time = 0;
49 }
50 
51 // +--------------------------------------------------------------------+
52 
53 void
54 FadeView::Refresh()
55 {
56  double msec = 0;
57 
58  if (state == StateStart) {
59  time = Game::RealTime();
60  }
61  else if (state != StateDone) {
62  double new_time = Game::RealTime();
63  msec = new_time - time;
64  time = new_time;
65  }
66 
67  switch (state) {
68  case StateStart:
69  if (fade_in) {
70  //Print(" * FadeView: %f, %f, %f\n", fade_in, fade_out, hold_time);
71  Color::SetFade(0);
72  //Print(" 1. FadeView SetFade to 0 (%6.1f)\n", time);
73  }
74 
75  step_time = 0;
76  state = State2;
77  break;
78 
79  case State2:
80  if (fade_in) {
81  Color::SetFade(0);
82  //Print(" 1. FadeView SetFade to 0 (%6.1f)\n", time);
83  }
84 
85  step_time = 0;
86  state = StateIn;
87  break;
88 
89  case StateIn:
90  if (step_time < fade_in) {
91  double fade = step_time / fade_in;
92  Color::SetFade(fade);
93  //Print(" 2. FadeView SetFade to %3d (%6.1f) %6.1f\n", (int) (fade * 100), time, step_time);
94  step_time += msec;
95  }
96  else {
97  Color::SetFade(1);
98  //Print(" 2. FadeView SetFade to %3d (%6.1f) %6.1f => HOLDING\n", 100, time, step_time);
99  step_time = 0;
100  state = StateHold;
101  }
102  break;
103 
104  case StateHold:
105  if (step_time < hold_time) {
106  step_time += msec;
107  //Print(" 3. FadeView holding at %3d (%6.1f) %6.1f\n", 100, time, step_time);
108  }
109  else {
110  //Print(" 3. FadeView HOLD COMPLETE (%6.1f) %6.1f\n", time, step_time);
111  step_time = 0;
112  state = StateOut;
113  }
114  break;
115 
116  case StateOut:
117  if (fade_out > 0) {
118  if (step_time < fade_out) {
119  double fade = 1 - step_time / fade_out;
120  Color::SetFade(fade);
121  //Print(" 4. FadeView SetFade to %3d (%6.1f) %6.1f\n", (int) (fade*100), time, step_time);
122  step_time += msec;
123  }
124  else {
125  Color::SetFade(0);
126  //Print(" 4. FadeView SetFade to %3d (%6.1f) %6.1f\n", 0, time, step_time);
127  step_time = 0;
128  state = StateDone;
129  }
130  }
131  else {
132  Color::SetFade(1);
133  //Print(" 4. FadeView SetFade to %3d (%6.1f) %6.1f\n", 0, time, step_time);
134  step_time = 0;
135  state = StateDone;
136  }
137  break;
138 
139  default:
140  case StateDone:
141  //Print(" 5. FadeView done (%6.1f) %6.1f\n", time, step_time);
142  break;
143  }
144 }
145