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Overview
Comment:Implement FlushClass, FlushObj, and IgnoreKey.
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SHA1: ccfd090a7aa4005d37e4ca09a148fd1ba23a9549
User & Date: user on 2020-12-14 22:30:06
Other Links: manifest | tags
Context
2020-12-14
22:31
Handle departures/arrivals while the object is not linked into the playfield, so that it doesn't trigger itself check-in: cfacb2c35a user: user tags: trunk
22:30
Implement FlushClass, FlushObj, and IgnoreKey. check-in: ccfd090a7a user: user tags: trunk
08:24
Implement the tuck instruction check-in: 7f3d502de0 user: user tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified exec.c from [7a9b812f58] to [c7401d76bd].

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  Uint32 from;
  Value arg1,arg2,arg3;
} MessageVars;

static jmp_buf my_env;
static const char*my_error;
static MessageVars msgvars;
static char lastimage_processing,changed;
static Value vstack[VSTACKSIZE];
static int vstackptr;
static const char*traceprefix;
static Uint8 current_key;

#define Throw(x) (my_error=(x),longjmp(my_env,1))
#define StackReq(x,y) do{ if(vstackptr<(x)) Throw("Stack underflow"); if(vstackptr-(x)+(y)>=VSTACKSIZE) Throw("Stack overflow"); }while(0)








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  Uint32 from;
  Value arg1,arg2,arg3;
} MessageVars;

static jmp_buf my_env;
static const char*my_error;
static MessageVars msgvars;
static char lastimage_processing,changed,all_flushed;
static Value vstack[VSTACKSIZE];
static int vstackptr;
static const char*traceprefix;
static Uint8 current_key;

#define Throw(x) (my_error=(x),longjmp(my_env,1))
#define StackReq(x,y) do{ if(vstackptr<(x)) Throw("Stack underflow"); if(vstackptr-(x)+(y)>=VSTACKSIZE) Throw("Stack overflow"); }while(0)
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        m=p->up;
      }
    }
  }
  if(!(o->oflags&OF_VISUALONLY)) {
    m=objects[n]->up;
    if(m!=VOIDLINK) {
      v=send_message(VOIDLINK,n,MSG_SUNK,NVALUE(0),NVALUE(0),v);
      while(m!=VOIDLINK) {
        send_message(n,m,MSG_FLOATED,NVALUE(0),NVALUE(0),v);
        m=objects[m]->up;
      }
    }
  }
  // The OF_MOVED flag is set elsewhere, not here








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        m=p->up;
      }
    }
  }
  if(!(o->oflags&OF_VISUALONLY)) {
    m=objects[n]->up;
    if(m!=VOIDLINK) {
      v=send_message(VOIDLINK,n,MSG_SUNK,NVALUE(0),NVALUE(0),NVALUE(0));
      while(m!=VOIDLINK) {
        send_message(n,m,MSG_FLOATED,NVALUE(0),NVALUE(0),v);
        m=objects[m]->up;
      }
    }
  }
  // The OF_MOVED flag is set elsewhere, not here
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    o=objects[t0.u];
    printf(" [$%s %d %d]",classes[o->class]->name,o->x,o->y);
  }
  o=objects[obj];
  printf(" : %u %u [$%s %d %d]",o->generation,obj,classes[o->class]->name,o->x,o->y);
  printf(" : %u %u : %u %u\n",t1.t,t1.u,t2.t,t2.u);
}






























static inline Value v_broadcast(Uint32 from,Value c,Value msg,Value arg1,Value arg2,Value arg3,int s) {
  if(msg.t!=TY_MESSAGE) Throw("Type mismatch");
  if(c.t!=TY_CLASS && (c.t!=TY_NUMBER || c.u)) Throw("Type mismatch");
  return NVALUE(broadcast(from,c.u,msg.u,arg1,arg2,arg3,s));
}









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    o=objects[t0.u];
    printf(" [$%s %d %d]",classes[o->class]->name,o->x,o->y);
  }
  o=objects[obj];
  printf(" : %u %u [$%s %d %d]",o->generation,obj,classes[o->class]->name,o->x,o->y);
  printf(" : %u %u : %u %u\n",t1.t,t1.u,t2.t,t2.u);
}

static void flush_object(Uint32 n) {
  Object*o=objects[n];
  o->arrived=o->arrived2=o->departed=o->departed2=0;
  o->oflags&=~(OF_MOVED|OF_BUSY|OF_USERSIGNAL);
  o->inertia=0;
}

static void flush_class(Uint16 c) {
  Uint32 n,p;
  Object*o;
  if(lastobj==VOIDLINK) return;
  n=lastobj;
  while(o=objects[n]) {
    p=o->prev;
    if(!c || o->class==c) {
      o->arrived=o->arrived2=o->departed=o->departed2=0;
      o->oflags&=~(OF_MOVED|OF_BUSY|OF_USERSIGNAL);
      o->inertia=0;
    }
    if(p==VOIDLINK) break;
    n=p;
  }
}

static inline void flush_all(void) {
  if(current_key) all_flushed=1;
  flush_class(0);
}

static inline Value v_broadcast(Uint32 from,Value c,Value msg,Value arg1,Value arg2,Value arg3,int s) {
  if(msg.t!=TY_MESSAGE) Throw("Type mismatch");
  if(c.t!=TY_CLASS && (c.t!=TY_NUMBER || c.u)) Throw("Type mismatch");
  return NVALUE(broadcast(from,c.u,msg.u,arg1,arg2,arg3,s));
}
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    case OP_DONE_C: StackReq(1,1); GetFlagOf(OF_DONE); break;
    case OP_DONE_E: StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_DONE; else o->oflags&=~OF_BUSY; break;
    case OP_DONE_EC: StackReq(2,0); SetFlagOf(OF_DONE); break;
    case OP_DROP: StackReq(1,0); Pop(); break;
    case OP_DROP_D: StackReq(2,0); Pop(); Pop(); break;
    case OP_DUP: StackReq(1,2); t1=Pop(); Push(t1); Push(t1); break;
    case OP_EQ: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_equal(t1,t2)?1:0)); break;


    case OP_FOR: NoIgnore(); StackReq(3,1); t3=Pop(); t2=Pop(); t1=Pop(); ptr=v_for(code,ptr,t1,t2,t3); break;
    case OP_FROM: StackReq(0,1); Push(OVALUE(msgvars.from)); break;
    case OP_GE: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_unsigned_greater(t2,t1)?0:1)); break;
    case OP_GE_C: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_signed_greater(t2,t1)?0:1)); break;
    case OP_GOTO: ptr=code[ptr]; break;
    case OP_GT: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_unsigned_greater(t1,t2)?1:0)); break;
    case OP_GT_C: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_signed_greater(t1,t2)?1:0)); break;
    case OP_HARD: StackReq(1,1); j=v_sh_dir(Pop()); Push(NVALUE(o->hard[j])); break;
    case OP_HARD_C: StackReq(2,1); j=v_sh_dir(Pop()); Push(GetVariableOrAttributeOf(hard[j],NVALUE)); break;
    case OP_HARD_E: NoIgnore(); StackReq(2,0); j=v_sh_dir(Pop()); t1=Pop(); Numeric(t1); o->hard[j]=t1.u; break;
    case OP_HARD_EC: NoIgnore(); StackReq(3,0); j=v_sh_dir(Pop()); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) objects[i]->hard[j]=t1.u; break;
    case OP_HEIGHT: StackReq(0,1); Push(NVALUE(o->height)); break;
    case OP_HEIGHT_C: StackReq(1,1); Push(GetVariableOrAttributeOf(height,NVALUE)); break;
    case OP_HEIGHT_E: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->height=t1.u; break;
    case OP_HEIGHT_E16: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->height=t1.u&0xFFFF; break;
    case OP_HEIGHT_EC: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) o->height=t1.u; break;
    case OP_HEIGHT_EC16: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) o->height=t1.u; break;
    case OP_IF: StackReq(1,0); if(v_bool(Pop())) ptr++; else ptr=code[ptr]; break;

    case OP_IMAGE: StackReq(0,1); Push(NVALUE(o->image)); break;
    case OP_IMAGE_C: StackReq(1,1); Push(GetVariableOf(image,NVALUE)); break;
    case OP_IMAGE_E: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->image=t1.u; break;
    case OP_IMAGE_EC: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) objects[i]->image=t1.u; break;
    case OP_INERTIA: StackReq(0,1); Push(NVALUE(o->inertia)); break;
    case OP_INERTIA_C: StackReq(1,1); Push(GetVariableOf(inertia,NVALUE)); break;
    case OP_INERTIA_E: StackReq(1,0); t1=Pop(); Numeric(t1); o->inertia=t1.u; break;








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    case OP_DONE_C: StackReq(1,1); GetFlagOf(OF_DONE); break;
    case OP_DONE_E: StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_DONE; else o->oflags&=~OF_BUSY; break;
    case OP_DONE_EC: StackReq(2,0); SetFlagOf(OF_DONE); break;
    case OP_DROP: StackReq(1,0); Pop(); break;
    case OP_DROP_D: StackReq(2,0); Pop(); Pop(); break;
    case OP_DUP: StackReq(1,2); t1=Pop(); Push(t1); Push(t1); break;
    case OP_EQ: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_equal(t1,t2)?1:0)); break;
    case OP_FLUSHCLASS: NoIgnore(); StackReq(1,0); t1=Pop(); if(t1.t==TY_CLASS) flush_class(t1.u); else if(t1.t==TY_NUMBER && t1.s==-1) flush_all(); else if(t1.t) Throw("Type mismatch"); break;
    case OP_FLUSHOBJ: NoIgnore(); StackReq(1,0); i=v_object(Pop()); if(i!=VOIDLINK) flush_object(i); break;
    case OP_FOR: NoIgnore(); StackReq(3,1); t3=Pop(); t2=Pop(); t1=Pop(); ptr=v_for(code,ptr,t1,t2,t3); break;
    case OP_FROM: StackReq(0,1); Push(OVALUE(msgvars.from)); break;
    case OP_GE: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_unsigned_greater(t2,t1)?0:1)); break;
    case OP_GE_C: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_signed_greater(t2,t1)?0:1)); break;
    case OP_GOTO: ptr=code[ptr]; break;
    case OP_GT: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_unsigned_greater(t1,t2)?1:0)); break;
    case OP_GT_C: StackReq(2,1); t2=Pop(); t1=Pop(); Push(NVALUE(v_signed_greater(t1,t2)?1:0)); break;
    case OP_HARD: StackReq(1,1); j=v_sh_dir(Pop()); Push(NVALUE(o->hard[j])); break;
    case OP_HARD_C: StackReq(2,1); j=v_sh_dir(Pop()); Push(GetVariableOrAttributeOf(hard[j],NVALUE)); break;
    case OP_HARD_E: NoIgnore(); StackReq(2,0); j=v_sh_dir(Pop()); t1=Pop(); Numeric(t1); o->hard[j]=t1.u; break;
    case OP_HARD_EC: NoIgnore(); StackReq(3,0); j=v_sh_dir(Pop()); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) objects[i]->hard[j]=t1.u; break;
    case OP_HEIGHT: StackReq(0,1); Push(NVALUE(o->height)); break;
    case OP_HEIGHT_C: StackReq(1,1); Push(GetVariableOrAttributeOf(height,NVALUE)); break;
    case OP_HEIGHT_E: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->height=t1.u; break;
    case OP_HEIGHT_E16: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->height=t1.u&0xFFFF; break;
    case OP_HEIGHT_EC: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) o->height=t1.u; break;
    case OP_HEIGHT_EC16: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) o->height=t1.u; break;
    case OP_IF: StackReq(1,0); if(v_bool(Pop())) ptr++; else ptr=code[ptr]; break;
    case OP_IGNOREKEY: if(current_key) key_ignored=all_flushed=1; break;
    case OP_IMAGE: StackReq(0,1); Push(NVALUE(o->image)); break;
    case OP_IMAGE_C: StackReq(1,1); Push(GetVariableOf(image,NVALUE)); break;
    case OP_IMAGE_E: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->image=t1.u; break;
    case OP_IMAGE_EC: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) objects[i]->image=t1.u; break;
    case OP_INERTIA: StackReq(0,1); Push(NVALUE(o->inertia)); break;
    case OP_INERTIA_C: StackReq(1,1); Push(GetVariableOf(inertia,NVALUE)); break;
    case OP_INERTIA_E: StackReq(1,0); t1=Pop(); Numeric(t1); o->inertia=t1.u; break;
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    case OP_STRENGTH_EC: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) o->strength=t1.u; break;
    case OP_STRENGTH_EC16: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) o->strength=t1.u; break;
    case OP_SOUND: StackReq(2,0); t2=Pop(); t1=Pop(); break; // Sound not implemented at this time
    case OP_SUB: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(t1.u-t2.u)); break;
    case OP_SWAP: StackReq(2,2); t1=Pop(); t2=Pop(); Push(t1); Push(t2); break;
    case OP_TRACE: StackReq(3,0); trace_stack(obj); break;
    case OP_TUCK: StackReq(2,3); t2=Pop(); t1=Pop(); Push(t2); Push(t1); Push(t2); break;




    case OP_USERSTATE: StackReq(0,1); if(o->oflags&OF_USERSTATE) Push(NVALUE(1)); else Push(NVALUE(0)); break;
    case OP_USERSTATE_C: StackReq(1,1); GetFlagOf(OF_USERSTATE); break;
    case OP_USERSTATE_E: NoIgnore(); StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_USERSTATE; else o->oflags&=~OF_USERSTATE; break;
    case OP_USERSTATE_EC: NoIgnore(); StackReq(2,0); SetFlagOf(OF_USERSTATE); break;
    case OP_USERSIGNAL: StackReq(0,1); if(o->oflags&OF_USERSIGNAL) Push(NVALUE(1)); else Push(NVALUE(0)); break;
    case OP_USERSIGNAL_C: StackReq(1,1); GetFlagOf(OF_USERSIGNAL); break;
    case OP_USERSIGNAL_E: NoIgnore(); StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_USERSIGNAL; else o->oflags&=~OF_USERSIGNAL; break;
    case OP_USERSIGNAL_EC: NoIgnore(); StackReq(2,0); SetFlagOf(OF_USERSIGNAL); break;
    case OP_VISUALONLY: StackReq(0,1); if(o->oflags&OF_VISUALONLY) Push(NVALUE(1)); else Push(NVALUE(0)); break;
    case OP_VISUALONLY_C: StackReq(1,1); GetFlagOf(OF_VISUALONLY); break;
    case OP_VISUALONLY_E: NoIgnore(); StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_VISUALONLY; else o->oflags&=~OF_VISUALONLY; break;
    case OP_VISUALONLY_EC: NoIgnore(); StackReq(2,0); SetFlagOf(OF_VISUALONLY); break;
    case OP_VOLUME: StackReq(0,1); Push(NVALUE(o->volume)); break;
    case OP_VOLUME_C: StackReq(1,1); Push(GetVariableOrAttributeOf(volume,NVALUE)); break;
    case OP_VOLUME_E: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->volume=t1.u; break;








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    case OP_STRENGTH_EC: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) o->strength=t1.u; break;
    case OP_STRENGTH_EC16: NoIgnore(); StackReq(2,0); t1=Pop(); Numeric(t1); i=v_object(Pop()); if(i!=VOIDLINK) o->strength=t1.u; break;
    case OP_SOUND: StackReq(2,0); t2=Pop(); t1=Pop(); break; // Sound not implemented at this time
    case OP_SUB: StackReq(2,1); t2=Pop(); Numeric(t2); t1=Pop(); Numeric(t1); Push(NVALUE(t1.u-t2.u)); break;
    case OP_SWAP: StackReq(2,2); t1=Pop(); t2=Pop(); Push(t1); Push(t2); break;
    case OP_TRACE: StackReq(3,0); trace_stack(obj); break;
    case OP_TUCK: StackReq(2,3); t2=Pop(); t1=Pop(); Push(t2); Push(t1); Push(t2); break;
    case OP_USERSIGNAL: StackReq(0,1); if(o->oflags&OF_USERSIGNAL) Push(NVALUE(1)); else Push(NVALUE(0)); break;
    case OP_USERSIGNAL_C: StackReq(1,1); GetFlagOf(OF_USERSIGNAL); break;
    case OP_USERSIGNAL_E: NoIgnore(); StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_USERSIGNAL; else o->oflags&=~OF_USERSIGNAL; break;
    case OP_USERSIGNAL_EC: NoIgnore(); StackReq(2,0); SetFlagOf(OF_USERSIGNAL); break;
    case OP_USERSTATE: StackReq(0,1); if(o->oflags&OF_USERSTATE) Push(NVALUE(1)); else Push(NVALUE(0)); break;
    case OP_USERSTATE_C: StackReq(1,1); GetFlagOf(OF_USERSTATE); break;
    case OP_USERSTATE_E: NoIgnore(); StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_USERSTATE; else o->oflags&=~OF_USERSTATE; break;
    case OP_USERSTATE_EC: NoIgnore(); StackReq(2,0); SetFlagOf(OF_USERSTATE); break;




    case OP_VISUALONLY: StackReq(0,1); if(o->oflags&OF_VISUALONLY) Push(NVALUE(1)); else Push(NVALUE(0)); break;
    case OP_VISUALONLY_C: StackReq(1,1); GetFlagOf(OF_VISUALONLY); break;
    case OP_VISUALONLY_E: NoIgnore(); StackReq(1,0); if(v_bool(Pop())) o->oflags|=OF_VISUALONLY; else o->oflags&=~OF_VISUALONLY; break;
    case OP_VISUALONLY_EC: NoIgnore(); StackReq(2,0); SetFlagOf(OF_VISUALONLY); break;
    case OP_VOLUME: StackReq(0,1); Push(NVALUE(o->volume)); break;
    case OP_VOLUME_C: StackReq(1,1); Push(GetVariableOrAttributeOf(volume,NVALUE)); break;
    case OP_VOLUME_E: NoIgnore(); StackReq(1,0); t1=Pop(); Numeric(t1); o->volume=t1.u; break;
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}

const char*execute_turn(int key) {
  Uint32 n;
  if(setjmp(my_env)) return my_error;
  changed=0;
  key_ignored=0;

  lastimage_processing=0;
  vstackptr=0;
  current_key=key;
  for(n=0;n<nobjects;n++) if(objects[n]) {
    objects[n]->distance=0;
    objects[n]->oflags&=~(OF_KEYCLEARED|OF_DONE);
  }
  
  if(key_ignored && changed) return "Invalid use of IgnoreKey";
  current_key=0;
  
  if(key_ignored && changed) return "Invalid use of IgnoreKey";
  if(generation_number<=TY_MAXTYPE) return "Too many generations of objects";
  return 0;
}

const char*init_level(void) {
  if(setjmp(my_env)) return my_error;
  if(main_options['t']) printf("[Level %d restarted]\n",level_id);
  memcpy(globals,initglobals,sizeof(globals));
  gameover=0;
  changed=0;
  key_ignored=0;

  lastimage_processing=0;
  vstackptr=0;
  move_number=0;
  current_key=0;
  broadcast(VOIDLINK,0,MSG_INIT,NVALUE(0),NVALUE(0),NVALUE(0),0);
  broadcast(VOIDLINK,0,MSG_POSTINIT,NVALUE(0),NVALUE(0),NVALUE(0),0);
  if(generation_number<=TY_MAXTYPE) return "Too many generations of objects";
  return 0;
}








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1103

1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124

}

const char*execute_turn(int key) {
  Uint32 n;
  if(setjmp(my_env)) return my_error;
  changed=0;
  key_ignored=0;
  all_flushed=0;
  lastimage_processing=0;
  vstackptr=0;
  current_key=key;
  for(n=0;n<nobjects;n++) if(objects[n]) {
    objects[n]->distance=0;
    objects[n]->oflags&=~(OF_KEYCLEARED|OF_DONE);
  }
  
  if(key_ignored && changed) return "Invalid use of IgnoreKey";
  current_key=0;
  

  if(generation_number<=TY_MAXTYPE) return "Too many generations of objects";
  return 0;
}

const char*init_level(void) {
  if(setjmp(my_env)) return my_error;
  if(main_options['t']) printf("[Level %d restarted]\n",level_id);
  memcpy(globals,initglobals,sizeof(globals));
  gameover=0;
  changed=0;
  key_ignored=0;
  all_flushed=0;
  lastimage_processing=0;
  vstackptr=0;
  move_number=0;
  current_key=0;
  broadcast(VOIDLINK,0,MSG_INIT,NVALUE(0),NVALUE(0),NVALUE(0),0);
  broadcast(VOIDLINK,0,MSG_POSTINIT,NVALUE(0),NVALUE(0),NVALUE(0),0);
  if(generation_number<=TY_MAXTYPE) return "Too many generations of objects";
  return 0;
}

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