animating.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");
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/****************************************************************************
 * INCLUDE SECTION 
 ****************************************************************************/
 
#include "../../ugbc.h"
 
/****************************************************************************
 * CODE SECTION 
 ****************************************************************************/

/* <usermanual>
@keyword ANIMATING
 
@english
 
This statement lets you know if there is a specific animation running 
on an animatable element.
 
@italian
 
Questa istruzione permette di sapere se vi è una specifica animazione 
in corso su un elemento animabile.
 
@syntax = ANIMATING(prefix)
@syntax = ANIMATING(prefix,animation)
 
@example IF NOT ANIMATING(wheel,animRotating) THEN
@example    ANIM wheel WITH animBrake
@example ENDIF
</usermanual> */
Variable * animating( Environment * _environment, char * _prefix, char * _animation ) {
 
#if defined(__gb__)
    Variable * false = variable_temporary( _environment, VT_SBYTE, 0 );
    return false;
#endif
 
    char prefixAnimation[MAX_TEMPORARY_STORAGE]; sprintf( prefixAnimation, "%sAnimation", _prefix );
 
    if ( ! variable_exists( _environment, prefixAnimation ) ) {
        CRITICAL_CANNOT_USE_ANIMATING_WITHOUT_ANIMATION(_prefix);
    }
 
    Variable * prefixAnimationVar = variable_retrieve( _environment, prefixAnimation );
 
    if ( prefixAnimationVar->type != VT_THREAD ) {
        CRITICAL_CANNOT_USE_ANIMATING_WITHOUT_ANIMATION(_prefix);
    }
    
    return running( _environment, prefixAnimationVar->name, _animation );
    
}