int LAYER::GetLastForeDirection( void )
{
PLAYER_PATH_NODE node;
node = (PLAYER_PATH_NODE)PeekData( &pds_path );
if( node )
{
return node->flags.BackDir;
}
return NOWHERE;
}
void LAYER::move( int32_t del_x, int32_t del_y )
{
x += del_x;
y += del_y;
min_x += del_x;
min_y += del_y;
{
INDEX idx;
PLAYER layer;
LIST_FORALL( linked, idx, PLAYER, layer )
{
if( layer->flags.bRoute )
{
if( layer->route_end_layer.layer == this && layer->route_start_layer.layer != this )
{
PLAYER_PATH_NODE node = (PLAYER_PATH_NODE)PeekData( &layer->pds_path );
layer->LayPath( layer->x + ((!node)?0:node->x) + del_x
, layer->y + ((!node)?0:node->y) + del_y );
// and here node is invalid!
}
if( layer->route_start_layer.layer == this )
{
PLAYER_PATH_NODE node = (PLAYER_PATH_NODE)PeekData( &layer->pds_path );
if( layer->route_end_layer.layer )
{
int32_t destx = layer->route_end_layer.layer->x + layer->route_end_layer.x;
int32_t desty = layer->route_end_layer.layer->y + layer->route_end_layer.y;
layer->BeginPath( layer->x + del_x, layer->y + del_y );
layer->LayPath( destx, desty );
}
else
{
lprintf( WIDE("This via should have been deleted?!") );
}
//layer->UnlayPath(
// RelayPathFrom( wX, wY );
}
}
}
}
}
int EzSockets::PeekPack(char *data, unsigned int max)
{
if (CanRead())
pUpdateRead();
if (blocking)
{
while ((inBuffer.length()<4) && !IsError())
pUpdateRead();
if (IsError())
return -1;
}
if (inBuffer.length()<4)
return -1;
unsigned int size;
PeekData((char*)&size, 4);
size = ntohl(size);
if (blocking)
while (inBuffer.length()<(size+4) && !IsError())
pUpdateRead();
else
if (inBuffer.length()<(size+4) || inBuffer.length()<=4)
return -1;
if (IsError())
return -1;
//What if we get disconnected while waiting for data?
string tBuff(inBuffer.substr(4, size));
if (tBuff.length() > max)
tBuff.substr(0, max);
memcpy (data, tBuff.c_str(),tBuff.length());
return size;
}
int EzSockets::ReadData(char *data, unsigned int bytes)
{
int bytesRead = PeekData(data,bytes);
inBuffer = inBuffer.substr(bytesRead);
return bytesRead;
}
void LAYER::LayPath( int32_t wX, int32_t wY )
{
int DeltaDir;
LOGICAL bLoop = FALSE, bIsRetry; // no looping....
int tx, ty;
int nPathLayed = 0;
int nDir, nNewDir;
LOGICAL bBackTrace = FALSE,
bFailed = FALSE;
PLAYER_PATH_NODE node;
lprintf( WIDE("Laying path %p to %d,%d"), this, wX, wY );
node = (PLAYER_PATH_NODE)PeekData( &pds_path );
// sanity validations...
// being done already, etc...
wX -= LAYER::x;
wY -= LAYER::y;
if( node )
{
if( node->x == wX && node->y == wY )
{
lprintf( WIDE("Already at this end point, why are you telling me to end where I already did?") );
return;
}
// should range check wX and wY to sane limits
// but for now we'll trust the programmer...
if( abs( node->x - wX ) > 100 || abs( node->y - wY ) > 100 )
{
DebugBreak();
lprintf( WIDE("Laying a LONG path - is this okay?!") );
}
}
#ifdef DEBUG_BACKTRACE
Log( WIDE("Enter...") );
#endif
//------------ FORWARD DRAWING NOW .....
bIsRetry = FALSE;
DeltaDir = 0;
{
PLAYER_PATH_NODE node;
// get the last node in the path.
node = (PLAYER_PATH_NODE)PeekData( &pds_path );
while( node )
{
nNewDir = FindDirection( node->x
, node->y
, wX, wY );
if( nNewDir == NOWHERE )
{
// already have this node at the current spot...
lprintf( WIDE("Node has ended here...") );
break;
}
nDir = NOWHERE; // intialize this, in case we missed a path below...
if( node->flags.BackDir == NOWHERE )
{
// if it is newdir, we're okay to go ahead with this plan.
if( node->flags.ForeDir != nNewDir && flags.bForced )
{
lprintf( WIDE("Have a forced begin point, and no way to get there from here....") );
DebugBreak();
if( NearDir( node->flags.ForeDir, nNewDir ) == 10 )
{
lprintf( WIDE("MUST go %d , have to go %d from here. Go nowhere."), node->flags.ForeDir, nNewDir );
lprintf( WIDE("Okay - consider a arbitrary jump to go forward... until we can go backward.") );
}
else
{
lprintf( WIDE("It's just not quite right... return, a less radical assumption may be made.") );
}
return;
}
// else, just go ahead, we returned above here.
node->flags.ForeDir = nNewDir;
}
else
{
// need to determine a valid foredir based on nNewDir desire, and nBackDir given.
lprintf( WIDE("%d, %d = %d")
, Opposite( node->flags.BackDir )
, nNewDir
, NearDir(Opposite( node->flags.BackDir )
, nNewDir ) );
lprintf( WIDE("newdir = %d backdir = %d"), nNewDir, node->flags.BackDir );
//pold->TopLayer->ForeDir;
if( NearDir( nNewDir, Opposite( node->flags.BackDir ) ) != 10 )
{
// this is a valid direction to go.
node->flags.ForeDir = nNewDir;
}
else
{
lprintf( WIDE("Unlay path cause we can't get there from here.") );
node = UnlayPath( nPathLayed + 1 );
// at this point always unlay at least one more than we put down.
nPathLayed = 1;
continue;
#if 0
int nBase = Opposite( node->flags.BackDir );
nDir = ( node->flags.BackDir + 2 ) & 7;
if( NearDir( nNewDir, nDir ) != 10 )
{
//node->flags.ForeDir = (nBase + 6) &7;
node->flags.ForeDir = Right( nBase );
}
else if( NearDir( nNewDir, Opposite( nDir ) ) != 10 )
{
node->flags.ForeDir = Left(nBase);
}
else
{
// this should be a random chance to go left or right...
// maybe tend to the lower x or higher x ?
lprintf( WIDE("Choosing an arbitrary directino of 1, and only on1") );
//node->flags.ForeDir = Right( nBase + 1 );
node->flags.bFlopped = 0;
node->flags.bTry = 1;
node->flags.bForced = 1;
node->flags.ForeDir = LeftOrRight( nBase, node->flags.bFlopped );
// set a flag in this node for which way to go...
// but a left/right node needs the ability
// to remain forced for a single unlay, and move in a direction...
}
#endif
}
}
{
int n;
tx = node->x + DirDeltaMap[node->flags.ForeDir].x;
ty = node->y + DirDeltaMap[node->flags.ForeDir].y;
lprintf( WIDE("New coordinate will be %d,%d"), tx, ty );
if( n = Overlaps( tx, ty ) ) // aleady drew something here...
// the distance of the overlap is n layers, including Nth layer
// for( ; n; PopData(&pds_stack), n-- )
// and some fixups which unlay path does.
{
lprintf( WIDE("Unlaying path %d steps to overlap") , n );
node = UnlayPath( n );
// at an unlay point of forced, unlay path should be 'smart' and 'wait'
// otherwise we may unwind to our tail and be confused... specially when moving away
// and coming back to reside at the center.
// if the force direction to go from a forced node is excessive, that definatly
// breaks force, and releases the path node.
// there may be board conditions which also determine the pathing.
// okay try this again from the top do {
// startin laying path again.
continue;
}
// otherwise we're good to go foreward.
// at least we won't add this node if it would have
// already been there, heck, other than that via's
// don't exist, sometimes we'll even get the exact node
// that this should be....
{
LAYER_PATH_NODE newnode;
// this may be set intrinsically by being an excessive force
// causing a large direction delta
newnode.flags.bForced = FALSE;
newnode.flags.ForeDir = NOWHERE;
// this of course must start(?) exactly how the other ended(?)...
newnode.flags.BackDir = Opposite( node->flags.ForeDir );
newnode.x = tx;
newnode.y = ty;
{
int xx = tx + x;
int yy = ty + y;
if( xx < min_x )
{
w += min_x - xx;
min_x = xx;
}
if( xx >= ( min_x + (int32_t)w ) )
w = xx - min_x + 1;
if( yy < min_y )
{
h += min_y - yy;
min_y = yy;
}
if( yy >= ( min_y + (int32_t)h ) )
h = yy - min_y + 1;
}
lprintf( WIDE("Push path %d,%d min=%d,%d size=%d,%d"), newnode.x, newnode.y, min_x, min_y, w, h );
PushData( &pds_path, &newnode );
nPathLayed++;
node = (PLAYER_PATH_NODE)PeekData( &pds_path ); // okay this is now where we are.
}
}
}
}
}
// result is the last node (if any... which is a peekstack)
PLAYER_PATH_NODE LAYER::UnlayPath( int nLayers )
{
// unwind to, and including this current spot.
// this is to handle when the line intersects itself.
// other conditions of unlaying via pathways may require
// other functionality.
int n;
PLAYER_PATH_NODE node;// = (PLAYER_PATH_NODE)PopData( &pds_path );
lprintf( WIDE("overlapped self at path segment %d"), nLayers );
for( n = nLayers; (n && (node = (PLAYER_PATH_NODE)PopData( &pds_path ))), n; n-- )
{
lprintf( WIDE("Popped node %d(%p)"), n, node );
// grab the NEXT node...
// if it has bForced set... then this node must exist.
PLAYER_PATH_NODE next = (PLAYER_PATH_NODE)PeekData( &pds_path );
if( next && next->flags.bForced )
{
DebugBreak();
node->flags.ForeDir = NOWHERE;
return node;
}
if( node && node->flags.bForced )
{
DebugBreak();
// this is SO bad.
}
//if( node->x == dest_x && node->y == dest_y )
{
//lprintf( WIDE("And then we find the node we overlaped...") );
}
}
lprintf( WIDE("Okay done popping... %d, %p"), n, node );
if( node )
{
PLAYER_PATH_NODE next = (PLAYER_PATH_NODE)PeekData( &pds_path );
// set this as nowhere, so that we can easily just step forward here..
if( !next )
{
if( !node->flags.bForced )
{
node->flags.ForeDir = NOWHERE;
}
PushData( &pds_path, node );
return node;
}
if( !nLayers
&& next->flags.bForced
&& next->flags.BackDir != NOWHERE )
{
// if it was forced, then this MUST be here. There is a reason.
// there is also a way to end this reason, and unlay 0 path. This
// releases the foredir to anything. This may be used for error correction path
// assumptions?
DebugBreak();
if( next->flags.bTry )
{
node = (PLAYER_PATH_NODE)PopData(&pds_path );
// this is the second attempt
if( !node->flags.bFlopped )
{
node->flags.bFlopped = 1;
node->flags.ForeDir = LeftOrRight( Opposite( node->flags.BackDir ), 1 );
return node;
}
}
next->flags.bForced = 0;
}
else
{
next->flags.ForeDir = NOWHERE;
lprintf( WIDE("this node itself is okay...") );
}
return next;
}
return NULL;
}
