msprite_duplicate.c

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/*****************************************************************************
 * ugBASIC - an isomorphic BASIC language compiler for retrocomputers        *
 *****************************************************************************
 * Copyright 2021-2026 Marco Spedaletti (asimov@mclink.it)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
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 * http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing, software
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
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 *----------------------------------------------------------------------------
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/****************************************************************************
 * INCLUDE SECTION 
 ****************************************************************************/
 
#include "../../../ugbc.h"
 
/****************************************************************************
 * CODE SECTION 
 ****************************************************************************/
 
#if defined(__c64__) || defined(__c64reu__) || defined(__c128__)

Variable * msprite_duplicate( Environment * _environment, char * _original ) {
 
    if ( _environment->deployed.sprite ) {
        CRITICAL_CANNOT_MIX_SPRITES_MSPRITES();
    }
 
    Variable * index;
    Variable * startIndex;
    Variable * spriteCount;
    Variable * original = variable_retrieve( _environment, _original );   
    Variable * result = variable_temporary( _environment, VT_MSPRITE, "(sprite index)" );   
 
    index = variable_temporary( _environment, VT_MSPRITE, "(sprite index)" );   
    spriteCount = variable_retrieve( _environment, "SPRITECOUNT" );
    startIndex = variable_temporary( _environment, VT_MSPRITE, "(sprite index)" );
 
    cpu_move_8bit( _environment, spriteCount->realName, result->realName );
    cpu_move_8bit( _environment, address_displacement( _environment, original->realName, "1" ), address_displacement( _environment, result->realName, "1" ) );
 
    vic2_sprite_duplicate( _environment, result->name, original->name );
 
    return result;
 
}
 
#endif