Free Hero Mesh

#define Pop() (vstack[--vstackptr])

// For arrival/departure masks
#define Xbit(a) ((a)%5-2)
#define Ybit(a) (2-(a)/5)

static Value send_message(Uint32 from,Uint32 to,Uint16 msg,Value arg1,Value arg2,Value arg3);
static Uint32 broadcast(Uint32 from,int c,Uint16 msg,Value arg1,Value arg2,Value arg3,Uint8 s);
static Value destroy(Uint32 from,Uint32 to,Uint32 why);

static const Sint8 x_delta[8]={1,1,0,-1,-1,-1,0,1};
static const Sint8 y_delta[8]={0,-1,-1,-1,0,1,1,1};

const unsigned char*value_string_ptr(Value v) {
  switch(v.t) {

    case OP_ASSASSINATE: NoIgnore(); destroy(obj,obj,8); break;
    case OP_ASSASSINATE_C: NoIgnore(); StackReq(1,0); i=v_object(Pop()); destroy(obj,i,8); break;
    case OP_BAND: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(t1.u&t2.u)); break;
    case OP_BNOT: StackReq(1,1); t1=Pop(); Numeric(t1); Push(NVALUE(~t1.u)); break;
    case OP_BOR: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(t1.u|t2.u)); break;
    case OP_BROADCAST: StackReq(4,1); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); Push(v_broadcast(obj,t1,t2,t3,t4,NVALUE(0),0)); break;
    case OP_BROADCAST_D: StackReq(4,0); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); v_broadcast(obj,t1,t2,t3,t4,NVALUE(0),0); break;
    case OP_BROADCASTAND: StackReq(4,1); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); Push(v_broadcast(obj,t1,t2,t3,t4,NVALUE(0),2)); break;
    case OP_BROADCASTANDEX: StackReq(5,1); t5=Pop(); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); Push(v_broadcast(obj,t1,t2,t3,t4,t5,2)); break;
    case OP_BROADCASTCLASS: StackReq(3,1); t4=Pop(); t3=Pop(); t2=Pop(); Push(v_broadcast(obj,CVALUE(code[ptr++]),t2,t3,t4,NVALUE(0),0)); break;
    case OP_BROADCASTEX: StackReq(5,1); t5=Pop(); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); Push(v_broadcast(obj,t1,t2,t3,t4,t5,0)); break;
    case OP_BROADCASTEX_D: StackReq(5,0); t5=Pop(); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); v_broadcast(obj,t1,t2,t3,t4,t5,0); break;
    case OP_BROADCASTLIST: StackReq(4,0); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); v_broadcast(obj,t1,t2,t3,t4,NVALUE(0),3); break;
    case OP_BROADCASTLISTEX: StackReq(5,0); t5=Pop(); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); v_broadcast(obj,t1,t2,t3,t4,t5,3); break;
    case OP_BROADCASTSUM: StackReq(4,1); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); Push(v_broadcast(obj,t1,t2,t3,t4,NVALUE(0),1)); break;
    case OP_BROADCASTSUMEX: StackReq(5,1); t5=Pop(); t4=Pop(); t3=Pop(); t2=Pop(); t1=Pop(); Push(v_broadcast(obj,t1,t2,t3,t4,t5,1)); break;
    case OP_BUSY: StackReq(0,1); if(o->oflags&OF_BUSY) Push(NVALUE(1)); else Push(NVALUE(0)); break;
    case OP_BUSY_C: StackReq(1,1); GetFlagOf(OF_BUSY); break;
    case OP_BUSY_E: NoIgnore(); StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_BUSY; else o->oflags&=~OF_BUSY; break;
    case OP_BUSY_EC: NoIgnore(); StackReq(2,0); SetFlagOf(OF_BUSY); break;
    case OP_BXOR: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(t1.u^t2.u)); break;

  if(vstackptr==stackptr) {
    return NVALUE(0);
  } else {
    return Pop();
  }
}

static Uint32 broadcast(Uint32 from,int c,Uint16 msg,Value arg1,Value arg2,Value arg3,Uint8 s) {
  Uint32 t=0;
  Uint32 n;
  Object*o;
  Value v;
  if(s==2) t=0xFFFFFFFFULL;
  if(lastobj==VOIDLINK) return t;
  n=lastobj;
  while(o=objects[n]) {
    if(!c || o->class==c) {
      v=send_message(from,n,msg,arg1,arg2,arg3);
      switch(s) {
        case 0:
          t++;
          break;
        case 1:
          switch(v.t) {
            case TY_NUMBER: t+=v.u; break;
            case TY_CLASS: t++; break;
            default:
              if(v.t<=TY_MAXTYPE) Throw("Invalid return type for BroadcastSum");
              t++;
          }
          break;
        case 2:
          switch(v.t) {
            case TY_NUMBER: if(!v.u) return 0;
            case TY_SOUND: case TY_USOUND: Throw("Invalid return type for BroadcastAnd");
          }
          break;
        case 3:
          StackReq(0,1);
          if(v.t!=TY_MARK) Push(v);
          break;
      }
    }
    n=o->prev;
    if(n==VOIDLINK) break;
  }
  return t;
}