src/materials.cpp

   1 #include "materials.h"
   2 #include "mapnode.h"
   3 #include "nodedef.h"
   4 #include "tooldef.h"
   5
   6 DiggingProperties getDiggingProperties(u16 content, ToolDiggingProperties *tp,
   7                 INodeDefManager *nodemgr)
   8 {
   9         assert(tp);
  10         const MaterialProperties &mp = nodemgr->get(content).material;
  11         if(mp.diggability == DIGGABLE_NOT)
  12                 return DiggingProperties(false, 0, 0);
  13         if(mp.diggability == DIGGABLE_CONSTANT)
  14                 return DiggingProperties(true, mp.constant_time, 0);
  15
  16         float time = tp->basetime;
  17         time += tp->dt_weight * mp.weight;
  18         time += tp->dt_crackiness * mp.crackiness;
  19         time += tp->dt_crumbliness * mp.crumbliness;
  20         time += tp->dt_cuttability * mp.cuttability;
  21         if(time < 0.2)
  22                 time = 0.2;
  23
  24         float durability = tp->basedurability;
  25         durability += tp->dd_weight * mp.weight;
  26         durability += tp->dd_crackiness * mp.crackiness;
  27         durability += tp->dd_crumbliness * mp.crumbliness;
  28         durability += tp->dd_cuttability * mp.cuttability;
  29         if(durability < 1)
  30                 durability = 1;
  31
  32         float wear = 1.0 / durability;
  33         u16 wear_i = wear/65535.;
  34         return DiggingProperties(true, time, wear_i);
  35 }
  36