src/rpggame/stats.h

   1
   2 // all of these stats are the total "points" an object has
   3 // points are converted into efficiency = log(points/pointscale+1)*percentscale+100
   4 // efficiency is by default 100% and rises logarithmically from that, according to the two scale vars, which are set in script
   5 // efficiency is used with a base value, i.e. a sword that does 10 damage used by a player with 150% melee efficiency does 15 damage
   6
   7 // with this define, we can uses these names to define vars, strings, functions etc
   8
   9 // see rpg.html for detailed explanation as to their meaning
  10
  11 #define RPGSTATNAMES \
  12     N(melee) \
  13     N(ranged) \
  14     N(magic) \
  15     \
  16     N(hpregen) \
  17     N(manaregen) \
  18     \
  19     N(maxhp) \
  20     N(maxmana) \
  21     \
  22     N(attackspeed) \
  23     N(movespeed) \
  24     N(jumpheight) \
  25     N(tradeskill) \
  26     N(feared) \
  27     N(stealth) \
  28     N(hostility) \
  29     \
  30     N(stata) \
  31     N(statb) \
  32     N(statc) \
  33
  34
  35 #define RPGATTRNAMES \
  36     N(ai) \
  37     N(hp) \
  38     N(mana) \
  39     N(gold) \
  40     N(worth) \
  41     N(useamount) \
  42     N(usetype) \
  43     N(damage) \
  44     N(maxrange) \
  45     N(maxangle) \
  46     N(attackrate) \
  47     N(manacost) \
  48     N(effect) \
  49     \
  50     N(attra) \
  51     N(attrb) \
  52     N(attrc) \
  53     \
  54     N(usesound)
  55
  56
  57 #define RPGNAMES RPGSTATNAMES RPGATTRNAMES
  58
  59 struct rpgobj;
  60
  61 struct stats
  62 {
  63     #define N(n) static int pointscale_##n, percentscale_##n; \
  64                  static void def_##n(int a, int b) { pointscale_##n = a; percentscale_##n = b; } \
  65                  int eff_##n() { return int(logf(s_##n/pointscale_##n+1)*percentscale_##n)+100; }
  66     RPGSTATNAMES
  67     #undef N
  68     #define N(n) int s_##n;
  69     RPGNAMES
  70     #undef N
  71
  72     int statupdatetime;
  73
  74     stats() : statupdatetime(0)
  75     {
  76         st_reset();
  77         #define N(n) s_##n = 0;
  78         RPGATTRNAMES
  79         #undef N
  80     }
  81
  82     void st_reset()
  83     {
  84         #define N(n) s_##n = 0;
  85         RPGSTATNAMES
  86         #undef N
  87     }
  88
  89     void st_accumulate(rpgobj &o)
  90     {
  91         #define N(n) s_##n += o.s_##n;
  92         RPGSTATNAMES
  93         #undef N
  94     }
  95
  96     void st_show(g3d_gui &g)
  97     {
  98         #define N(n) if(s_##n) { s_sprintfd(s)(#n ": %d => %d%%", s_##n, eff_##n()); g.text(s, 0xFFFFFF, "info"); }
  99         RPGSTATNAMES
 100         #undef N
 101         #define N(n) if(s_##n) { s_sprintfd(s)(#n ": %d", s_##n); g.text(s, 0xFFAAAA, "info"); }
 102         RPGATTRNAMES
 103         #undef N
 104     }
 105
 106     void st_init()
 107     {
 108         s_hp   = eff_maxhp();
 109         s_mana = eff_maxmana();
 110     }
 111
 112     void st_respawn()   // player only
 113     {
 114         s_hp = 10;
 115     }
 116
 117     void st_update(int lastmillis)
 118     {
 119         if(lastmillis-statupdatetime>1000)
 120         {
 121             statupdatetime += 1000;
 122             const int base_hp_regen_rate = 2, base_mana_regen_rate = 3;     // in script?
 123             s_hp   += eff_hpregen()  *base_hp_regen_rate  /100;
 124             s_mana += eff_manaregen()*base_mana_regen_rate/100;
 125             if(s_hp  >eff_maxhp())   s_hp   = eff_maxhp();
 126             if(s_mana>eff_maxmana()) s_mana = eff_maxmana();
 127         }
 128     }
 129 };
 130
 131