plugins/recharge/recharge.c

   1 #include <stdio.h>
   2 #include "recharge.h"
   3 #include "../game/game.h"
   4
   5 static double recharge_full_timer = 0.0;
   6 static double recharge_timer = 0.0;
   7
   8 static const char *recharge_icon;
   9
  10 bool is_charged()
  11 {
  12         return recharge_timer <= 0;
  13 }
  14
  15 void recharge(double timer, const char *icon)
  16 {
  17         recharge_full_timer = recharge_timer = timer;
  18         recharge_icon = icon;
  19 }
  20
  21 static void render_recharge_meter(struct winsize ws)
  22 {
  23         int y = ws.ws_row - 1;
  24         int x = ws.ws_col - 14;
  25
  26         if (recharge_timer <= 0.0)
  27                 return;
  28
  29         double frac = (recharge_full_timer - recharge_timer) / recharge_full_timer;
  30
  31         printf("\e[%d;%dH", y, x);
  32
  33         printf("%s[", recharge_icon);
  34
  35         struct color color = {
  36                 (1.0 - frac) * 255,
  37                 frac * 255,
  38                 0,
  39         };
  40
  41         set_color(color, true);
  42
  43         char bar[11];
  44         sprintf(bar, "%9d%%", (int) (frac * 100));
  45
  46         int bars = frac * 10;
  47
  48         for (int i = 0; i < 10; i++) {
  49                 if (i == bars)
  50                         set_color(black, true);
  51                 printf("%c", bar[i]);
  52         }
  53
  54         set_color(black, true);
  55
  56         printf("]");
  57 }
  58
  59 static void recharge_globalstep(double dtime)
  60 {
  61         if (recharge_timer > 0.0)
  62                 recharge_timer -= dtime;
  63 }
  64
  65 __attribute__ ((constructor)) static void init()
  66 {
  67         register_render_component(&render_recharge_meter);
  68         register_globalstep((struct globalstep) {
  69                 .run_if_dead = false,
  70                 .callback = &recharge_globalstep,
  71         });
  72 }