common.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #ifndef COMMON_H
   6 #define COMMON_H
   7
   8 #define VG_TIMESTEP_FIXED (1.0/60.0)
   9 #define VG_3D
  10 #define VG_FRAMEBUFFER_RESIZE 1
  11 #include "vg/vg.h"
  12 #include "anyascii/anyascii.h"
  13
  14 #define RESET_MAX_TIME 45.0
  15
  16 typedef struct ray_hit ray_hit;
  17 struct ray_hit
  18 {
  19    float dist;
  20    u32 *tri;
  21    v3f pos, normal;
  22 };
  23
  24 VG_STATIC int network_scores_updated = 0;
  25
  26 VG_STATIC u32 utf8_byte0_byte_count( u8 char0 )
  27 {
  28    for( u32 k=2; k<4; k++ )
  29    {
  30       if( !(char0 & (0x80 >> k)) )
  31          return k;
  32    }
  33
  34    return 0;
  35 }
  36
  37 VG_STATIC void str_utf8_collapse( const char *str, char *buf, u32 length )
  38 {
  39    u8 *ustr = (u8 *)str;
  40    u32 utf32_code = 0x00000000;
  41    u32 i=0, j=0, utf32_byte_ct=0;
  42
  43    for(;i < length-1;)
  44    {
  45       if( ustr[i] == 0x00 )
  46          break;
  47
  48       if( ustr[i] & 0x80 )
  49       {
  50          if( utf32_byte_ct )
  51          {
  52             utf32_byte_ct --;
  53             utf32_code |= (ustr[i] & 0x3F) << (utf32_byte_ct*6);
  54
  55             if( !utf32_byte_ct )
  56             {
  57                const char *match;
  58                size_t chars = anyascii( utf32_code, &match );
  59
  60                for( u32 k=0; k<VG_MIN(chars, length-1-j); k++ )
  61                {
  62                   buf[ j++ ] = (u8)match[k];
  63                }
  64             }
  65          }
  66          else
  67          {
  68             utf32_byte_ct = utf8_byte0_byte_count( ustr[i] )-1;
  69             utf32_code = ustr[i] & (0x3F >> utf32_byte_ct);
  70             utf32_code <<= utf32_byte_ct*6;
  71          }
  72       }
  73       else
  74       {
  75          utf32_byte_ct = 0x00;
  76          buf[j ++] = str[i];
  77       }
  78
  79       i++;
  80    }
  81
  82    buf[j] = 0x00;
  83 }
  84
  85 #endif /* COMMON_H */