ugBASIC 1.18
An isomorphic BASIC language compiler for retrocomputers
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freeze.c
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1/*****************************************************************************
2 * ugBASIC - an isomorphic BASIC language compiler for retrocomputers *
3 *****************************************************************************
4 * Copyright 2021-2026 Marco Spedaletti (asimov@mclink.it)
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
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10 * http://www.apache.org/licenses/LICENSE-2.0
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13 * distributed under the License is distributed on an "AS IS" BASIS,
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17 *----------------------------------------------------------------------------
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22 * http://www.apache.org/licenses/LICENSE-2.0
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30
31/****************************************************************************
32 * INCLUDE SECTION
33 ****************************************************************************/
34
35#include "../../ugbc.h"
36
37/****************************************************************************
38 * CODE SECTION
39 ****************************************************************************/
40
47/* <usermanual>
48@keyword FREEZE
49
50@english
51
52This command can be used to temporarily pause the execution of an animation.
53It will then be held still on the last frame reached.
54
55@italian
56
57Questo comando può essere utilizzato per sospendere, temporaneamente,
58l'esecuzione di una animazione. Sarà quindi mantenuto fermo sull'ultimo
59fotogramma raggiunto.
60
61@syntax FREEZE prefix
62
63@example ANIMATE airplane WITH anim AT 20, 20
64@example RUN PARALLEL
65@example FREEZE airplane
66
67@target all
68</usermanual> */
69void freeze_vars( Environment * _environment, char * _prefix ) {
70
72
73 char prefixAnimation[MAX_TEMPORARY_STORAGE]; sprintf( prefixAnimation, "%sAnimation", _prefix );
74
75 if ( ! variable_exists( _environment, prefixAnimation ) ) {
77 }
78
79 Variable * prefixAnimationVar = variable_retrieve( _environment, prefixAnimation );
80
81 if ( prefixAnimationVar->type != VT_THREAD ) {
83 }
84
85 suspend_vars( _environment, prefixAnimationVar->name );
86
87}
88
Variable * variable_retrieve(Environment *_environment, char *_name)
int variable_exists(Environment *_environment, char *_name)
void freeze_vars(Environment *_environment, char *_prefix)
Emit code for FREEZE ....
Definition freeze.c:69
char * name
Definition ugbc.h:979
VariableType type
Definition ugbc.h:988
void suspend_vars(Environment *_environment, char *_thread)
Emit code for SUSPEND ....
Definition suspend.c:71
#define MAX_TEMPORARY_STORAGE
Definition ugbc.h:563
#define CRITICAL_CANNOT_USE_FREEZE_WITHOUT_ANIMATION(n)
Definition ugbc.h:3773
struct _Variable Variable
Structure of a single variable.
struct _Environment Environment
Structure of compilation environment.
@ VT_THREAD
Definition ugbc.h:492
#define MAKE_LABEL
Definition ugbc.h:3351