108 lines
3.9 KiB
C++
108 lines
3.9 KiB
C++
//////////////////////////////////////////////////////////////////////////
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// Oekakids Tablet //
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//////////////////////////////////////////////////////////////////////////
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void EXPAD_OekakidsTablet::Reset()
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{
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olddata = 0;
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outbits = 0;
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databits = 0;
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zapper_x = 0;
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zapper_y = 0;
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zapper_button = 0;
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}
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BYTE EXPAD_OekakidsTablet::Read4017()
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{
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return outbits;
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}
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void EXPAD_OekakidsTablet::Write4016( BYTE data )
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{
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if( zapper_y < 48 ) {
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DirectDraw.SetZapperDrawMode( TRUE );
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} else {
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DirectDraw.SetZapperDrawMode( FALSE );
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}
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if( !(data & 0x01) ) {
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outbits = 0;
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databits = 0;
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if( zapper_button )
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databits |= 0x0001;
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LONG x, y;
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if( zapper_y >= 48 ) {
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databits |= 0x0002;
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} else if( zapper_button ) {
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databits |= 0x0003;
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}
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if( zapper_x < 0 ) {
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x = 0;
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} else {
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x = ((240*zapper_x)/256)+8;
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}
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if( zapper_y < 0 ) {
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y = 0;
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} else {
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y = ((256*zapper_y)/240)-12;
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if( y < 0 )
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y = 0;
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}
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databits = databits | (x << 10) | (y << 2);
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} else {
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// L->H
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if( ((~olddata)&data) & 0x02 ) {
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databits <<= 1;
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}
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if( !(data & 0x02) ) {
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outbits = 0x04;
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} else
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if( databits & 0x40000 ) {
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outbits = 0x00;
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} else {
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outbits = 0x08;
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}
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olddata = data;
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}
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}
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void EXPAD_OekakidsTablet::Sync()
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{
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nes->GetZapperPos( zapper_x, zapper_y );
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zapper_button = 0;
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if( ::GetAsyncKeyState(VK_LBUTTON)&0x8000 )
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zapper_button = 0xFF;
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}
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void EXPAD_OekakidsTablet::SetSyncData( INT type, LONG data )
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{
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if( type == 0 ) {
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zapper_x = data;
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} else if( type == 1 ) {
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zapper_y = data;
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} else if( type == 2 ) {
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zapper_button = data?0xFF:0x00;
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}
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}
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LONG EXPAD_OekakidsTablet::GetSyncData( INT type )
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{
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LONG data = 0;
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if( type == 0 ) {
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data = zapper_x;
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} else if( type == 1 ) {
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data = zapper_y;
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} else if( type == 2 ) {
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data = zapper_button?0xFF:0x00;
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}
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return data;
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}
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