light_the_firework/health.cpp at master · JunyiLiGit/light_the_firework · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
#include "health.h"

Health::Health() :
  screen(IOManager::getInstance().getScreen()),
  start(Vector2f(20, 20)),
  totalLength(180),
  currentLength(180),
  thick(14),
  increments(20),
  interval(1000),
  deltaTime(0),
  RED( SDL_MapRGB(screen->format, 0xff, 0x00, 0x00) ),
  GRAY( SDL_MapRGB(screen->format, 0xce, 0xb4, 0xb4) ),
  BLACK( SDL_MapRGB(screen->format, 0x00, 0x00, 0x00) ),
  color(RED) {
}

Health::Health(int sx, int sy, int tl, int cl,
               float t, int inc, Uint32 c, float sp):
  screen(IOManager::getInstance().getScreen()),
  start(Vector2f(sx, sy)),
  totalLength(tl),
  currentLength(cl),
  thick(t),
  increments(inc),
  interval(sp),
  deltaTime(SDL_GetTicks()),
  RED( SDL_MapRGB(screen->format, 0xff, 0x00, 0x00) ),
  GRAY( SDL_MapRGB(screen->format, 0xff, 0xff, 0xff) ),
  BLACK( SDL_MapRGB(screen->format, 0x00, 0x00, 0x00) ),
    color(c) {
}

void Health::drawBox() const {
  Draw_AALine(screen, start[0], start[1],
                      start[0]+totalLength, start[1],
                      thick, GRAY);
  // Two Horizontal lines
  Draw_AALine(screen, start[0], start[1]-8,
                      start[0]+totalLength, start[1]-8,
                      1.0, BLACK);
  Draw_AALine(screen, start[0], start[1]+8,
                      start[0]+totalLength, start[1]+8,
                      1.0, BLACK);
  // Two Vertical lines
  Draw_AALine(screen, start[0]-1, start[1]-8,
                      start[0]-1, start[1]+8,
                      2.0, BLACK);
  Draw_AALine(screen, start[0]+totalLength+1, start[1]-8,
                      start[0]+totalLength+1, start[1]+8,
                      2.0, BLACK);
}

void Health::draw() const {
  drawBox();
  Draw_AALine(screen, start[0], start[1],
                      start[0]+currentLength, start[1],
                      thick, color);
}
void Health::update(Uint32 ticks) {
  deltaTime += ticks;
  if ( currentLength > 0 && deltaTime > interval ) {
    deltaTime = 0;
    currentLength -= increments;
  }
}