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- /*
- * Copyright (c) 1994 Michael D. Bayne.
- * All rights reserved.
- *
- * Please see the documentation accompanying the distribution for distribution
- * and disclaimer information.
- */
-
- #include <exec/memory.h>
- #include "/includes.h"
-
- #ifndef max
- #define max( x, y ) ( x > y ? x : y )
- #endif
-
- #include "Rain_rev.h"
- STATIC const UBYTE VersTag[] = VERSTAG;
-
- VOID Defaults( PrefObject *Prefs )
- {
- Prefs[0].po_Level = 10;
- Prefs[2].po_ModeID = getTopScreenMode();
- Prefs[2].po_Depth = 2;
- }
-
- LONG Blank( PrefObject *Prefs )
- {
- LONG ToFrontCount = 0, Wid, Hei, Drops, x, y, r, i, incr, RetVal = OK;
- struct RastPort *Rast;
- struct Screen *Scr;
- struct Window *Wnd;
-
- Drops = Prefs[0].po_Level;
-
- Scr = OpenScreenTags( 0L, SA_Depth, Prefs[2].po_Depth, SA_Quiet, TRUE,
- SA_Overscan, OSCAN_STANDARD, SA_Behind, TRUE,
- SA_DisplayID, Prefs[2].po_ModeID, TAG_DONE );
- if( Scr )
- {
- Wid = Scr->Width;
- Hei = Scr->Height;
-
- Rast = &( Scr->RastPort );
- SetRast( Rast, 0 );
-
- for( i = 0; i < 4; i++ )
- SetRGB4(&( Scr->ViewPort ), i, 4 * i, 4 * i, 4 * i );
-
- Wnd = BlankMousePointer( Scr );
- ScreenToFront( Scr );
-
- while( RetVal == OK )
- {
- if(!( ++ToFrontCount % 60 ))
- ScreenToFront( Scr );
-
- if(!( ToFrontCount % Drops ))
- SetRast(&( Scr->RastPort ), 0 );
-
- r = RangeRand( Wid/13 ) + Wid/25;
- x = RangeRand( Wid - 2*r ) + r;
- y = RangeRand( Hei - 2*r ) + r;
-
- incr = max( Wid/160, 1 );
-
- for( i = 0; i < r; i += incr )
- {
- WaitTOF();
- SetAPen( &Scr->RastPort,
- ( ULONG )RangeRand(( 1L << Prefs[2].po_Depth ) - 1 )
- + 1 );
- DrawEllipse(&( Scr->RastPort ), x, y, i, i );
- if( i )
- {
- SetAPen(&( Scr->RastPort ), 0 );
- DrawEllipse(&( Scr->RastPort ), x, y, i - incr, i - incr );
- }
- }
-
- RetVal = ContinueBlanking();
- }
- UnblankMousePointer( Wnd );
- }
- else
- RetVal = FAILED;
-
- if( Scr )
- CloseScreen( Scr );
-
- return RetVal;
- }
-