commit
1c28d17eb3
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#ifndef PRINTER_INCLUDED
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#define PRINTER_INCLUDED
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#include <model/Coord.h>
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void printCoord(const Coord coord);
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#endif //PRINTER_INCLUDED
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/**
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* \file ArrayUtils.h
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* \brief This file define a macro used to generate dynamic array structs and associated functions
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* \author Martin Rouault
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* \date 3/01/2022
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*/
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#ifndef ARRAY_UTILS_INCLUDED
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#define ARRAY_UTILS_INCLUDED
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#include <stddef.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <errno.h>
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/**
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* \brief Generate a dynamic array for type T
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* If you want an int array use
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* GENERATE_DYNAMIC_ARRAY(int)
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* If you miss a function, write it with a type as int first then rewrite it in the macro
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* You will need to follow function naming convetions to avoid multiple functions with the same name
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* Functions in header must be marked as inline
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* Don't forget antislashes
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*/
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#define GENERATE_DYNAMIC_ARRAY(T) \
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struct array_##T { \
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T* elems; \
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size_t arraySize; \
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size_t arraySpace; \
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}; \
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\
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/*Contruct an empty array*/\
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inline struct array_##T array_##T##_Create() { \
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struct array_##T array = {.elems=NULL, .arraySize=0, .arraySpace=0}; \
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return array; \
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} \
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\
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/*Free an array*/ \
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inline void array_##T##_Free(struct array_##T* array) { \
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free(array->elems); \
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array->elems = NULL; \
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array->arraySize = 0; \
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array->arraySpace = 0; \
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} \
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\
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/*Reserve space for an array*/\
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inline void array_##T##_Reserve(struct array_##T* array, const size_t space) { \
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array->arraySpace = space; \
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array->elems = realloc(array->elems, sizeof(T)*(array->arraySpace)); \
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if (array->elems == NULL) exit(errno); \
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} \
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\
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/*Fit space to size for an array*/\
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inline void array_##T##_FitToSize(struct array_##T* array) { \
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array->arraySpace = array->arraySize; \
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array->elems = realloc(array->elems, sizeof(T)*(array->arraySpace)); \
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if (array->elems == NULL) exit(errno); \
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} \
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\
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/*Add an element to an array*/\
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inline void array_##T##_AddElement(struct array_##T* array, const T element) { \
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++(array->arraySize); \
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if (array->arraySize > array->arraySpace) { \
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++(array->arraySpace); \
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array->elems = realloc(array->elems, sizeof(T)*(array->arraySpace)); \
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if (array->elems == NULL) exit(errno); \
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} \
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\
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array->elems[array->arraySize - 1] = element; \
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} \
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\
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/*Remove an element from an array*/\
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inline bool array_##T##_RemoveElement(struct array_##T* array, const T element, bool (*areEqual)(const T, const T)) { \
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for (size_t i=0; i<array->arraySize; ++i) { \
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if (areEqual(array->elems[i], element)) { \
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for (;i<array->arraySize-1; ++i) { \
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array->elems[i] = array->elems[i+1]; \
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} \
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--(array->arraySize); \
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return true; \
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} \
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} \
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return false; \
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} \
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\
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/*Check if an array contains an element*/\
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inline bool array_##T##_Contains(const struct array_##T* const array, const T element, bool (*areEqual)(const T, const T)) { \
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for (size_t i = 0; i < array->arraySize; i++) { \
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if (areEqual(array->elems[i], element)) { \
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return true; \
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} \
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} \
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return false; \
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}\
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\
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/*Apply a function to each element in the array*/\
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inline void array_##T##_Foreach(const struct array_##T* const array, void (*func)(const T)) { \
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for(size_t i = 0; i<array->arraySize; ++i) { \
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func(array->elems[i]);\
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}\
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}
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#endif //ARRAY_UTILS_INCLUDED
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@ -1,23 +0,0 @@
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/**
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* \file Audio.h
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* \brief Audio management
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* \author Théotime Maillarbaux
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* \date 13/12/2021
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*/
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#ifndef AUDIO_H
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#define AUDIO_H
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#include <SDL2/SDL_mixer.h>
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/**
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* \brief Fades out a music and plays another one.
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* \param[in] music A pointer to the Mix_Music struct used to play the current track
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* \param[in] path The path to the new track to be played
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* \warning The program won't know if it failed.
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*
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* This function creates a thread that will detach on its own completion.
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*/
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void switchMusic(Mix_Music* music, char path[]);
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#endif // AUDIO_H
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/**
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* \file AudioHandler.h
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* \brief Audio management (music and sound effects)
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* \author Théotime Maillarbaux
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* \date 13/12/2021
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*/
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#ifndef AUDIO_H
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#define AUDIO_H
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#include <SDL2/SDL_mixer.h>
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#include <SDL2/SDL_thread.h>
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#include <stdio.h>
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#include <stdbool.h>
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/**
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* Macro used to generate enums elements and paths for musics.
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* It should take either #MACRO_MUSIC_ENUM_GEN(E) or #MACRO_TO_MUSIC_PATH(P)
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* as parameter.
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*
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* If new audios are added to the program, they should be added here.
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* \sa #MACRO_FOR_ALL_SFX(E)
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*/
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#define MACRO_FOR_ALL_MUSICS(M) \
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M(base_tardi) \
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M(testMus)
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/**
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* Macro used to generate enums elements and paths for sound effects.
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* It works the same way as #MACRO_FOR_ALL_MUSICS(M).
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* \sa #MACRO_FOR_ALL_MUSICS(M)
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*/
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#define MACRO_FOR_ALL_SFX(M) \
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M(testClick)
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/**
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* Macro used to generate the entries for the musics in #EnumAudios.
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* It should be used in #MACRO_FOR_ALL_MUSICS(M) as a parameter.
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* Each entry of #MACRO_FOR_ALL_MUSICS(M) will be converted as MUSIC_name.
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* \sa #MACRO_SFX_ENUM_GEN(E)
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*/
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#define MACRO_MUSIC_ENUM_GEN(E) MUSIC_##E,
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/**
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* Macro used to generate the entries for the SFX in #EnumAudios.
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* It works the same way as #MACRO_MUSIC_ENUM_GEN(E), except the entries start with SFX_
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* instead of MUSIC_.
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* \sa #MACRO_MUSIC_ENUM_GEN(E).
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*/
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#define MACRO_SFX_ENUM_GEN(E) SFX_##E,
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/**
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* Macro used to generate the paths to the musics.
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* It should be used in #MACRO_FOR_ALL_MUSICS(M) as a parameter.
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* Each entry of #MACRO_FOR_ALL_MUSICS(M) will be converted as rsrc/music/name.mp3.
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* \sa #MACRO_TO_SFX_PATH(P)
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*/
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#define MACRO_TO_MUSIC_PATH(P) "rsrc/music/"#P".mp3",
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/**
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* Macro used to generate the paths to the SFX.
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* It works the same way as #MACRO_TO_MUSIC_PATH(P),
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* except the entries are converted to rsrc/sfx/name.wav.
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* \sa MACRO_TO_MUSIC_PATH(P)
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*/
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#define MACRO_TO_SFX_PATH(P) "rsrc/sfx/"#P".wav",
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/**
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* \enum EnumAudios
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* \brief Lists audios used in the program.
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*/
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typedef enum {
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MACRO_FOR_ALL_MUSICS(MACRO_MUSIC_ENUM_GEN)
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NB_MUSIC_DEFINED, ///< Index of this entry == number of musics
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MACRO_FOR_ALL_SFX(MACRO_SFX_ENUM_GEN)
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NB_AUDIO_DEFINED ///< Index of this entry == number of audios + 1
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} EnumAudios;
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/**
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* \struct AudioHandler
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* \brief A struct to store and handle all audios.
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*/
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typedef struct {
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bool canPlayAudio; ///< true if audio could be initialized, else false. It shouldn't be changed manually.
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Mix_Music* musics[NB_MUSIC_DEFINED]; ///< Paths to the musics
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Mix_Chunk* sfx[NB_AUDIO_DEFINED - NB_MUSIC_DEFINED - 1]; ///< Paths to the SFX
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} AudioHandler;
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/**
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* \brief Initializes the audio and creates a new AudioHandler.
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* \param[in] volMusic Volume of the music
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* \param[in] volSFX Volume of the sound effects.
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* \return A new AudioHandler.
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* \warning The program won't know if opening the audio device and the files failed.
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*/
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AudioHandler newAudioHandler(int volMusic, int volSFX);
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/**
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* \brief Changes volume for the SFX.
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* \param[in] volSFX The new volume for the SFX.
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*/
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void changeSFXVol(int volSFX);
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/**
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* \brief Frees the music and SFX, and un-initializes the audio.
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* \param[in,out] audioHandler A pointer to the AudioHandler to be freed.
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*/
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void freeAudioHandler(AudioHandler audioHandler);
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/**
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* \brief Plays a music. If another music is currently playing, the previous one will fade out.
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* \param[in] music The music to be played. Should be a value of #EnumAudios starting with MUSIC_.
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* \param[in] audioHandler The AudioHandler used to store the musics.
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*/
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void playMusic(EnumAudios music, AudioHandler audioHandler);
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/**
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* \brief Plays a sound effect.
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* \param[in] sfx The SFX to be played. Should be a value of #EnumAudios starting with SFX_.
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* \param[in] channel The channel the SFX should be played on.
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* \param[in] audioHandler The AudioHandler used to store the SFX.
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*/
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void playSFX(EnumAudios sfx, int channel, AudioHandler audioHandler);
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#endif // AUDIO_H
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@ -0,0 +1,9 @@
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#ifndef ARRAY_COORD_INCLUDED
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#define ARRAY_COORD_INCLUDED
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#include "model/Coord.h"
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#include "engine/ArrayUtils.h"
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GENERATE_DYNAMIC_ARRAY(Coord)
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#endif //ARRAY_COORD_INCLUDED
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@ -0,0 +1,7 @@
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#include "debug/printer.h"
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#include <stdio.h>
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void printCoord(const Coord coord) {
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fprintf(stderr, "(%d, %d)", coord.x, coord.y);
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}
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@ -1,35 +0,0 @@
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#include "engine/Audio.h"
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struct params {
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Mix_Music* music; // AA pointer to the Mix_Music struct used for the current track
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char* path; // The path to the new track to be played
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};
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int fadeOut(void* args) {
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struct params* argsCast = (struct params*)args;
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Mix_Music* newMusic = Mix_LoadMUS(argsCast->path);
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if (argsCast->music != NULL) {
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if(Mix_FadeOutMusic(500) == 0) {
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while (Mix_PlayingMusic()) {
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;
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}
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}
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}
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if (newMusic != NULL) {
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argsCast->music = newMusic;
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return Mix_PlayMusic(argsCast->music,-1);
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}
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else return -2;
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}
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void switchMusic(Mix_Music* music, char path[]) {
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struct params args = {
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.music = music,
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.path = path
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};
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SDL_Thread* thread = SDL_CreateThread(&fadeOut, "Fade out", (void*)&args);
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SDL_DetachThread(thread); // Won't wait until thread is done to continue
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}
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#include "engine/AudioHandler.h"
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// A channel represents the number of SFX we can play at the same time.
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// We normally should use only 1 channel, and we add one for safety.
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#define NBCHANNELS 2
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||||||
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// Local functions
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||||||
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||||||
|
/*
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||||||
|
* Used in a thread. Fades out the currently played music,
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||||||
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* then plays the music passed in as parameter.
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* args should be passed as a pointer to void,
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* but should actually be a pointer to Mix_Music.
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||||||
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* It is the music we want to play next;
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||||||
|
*/
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||||||
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int fadeOut(void* args) {
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||||||
|
// Since args is a pointer to void
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||||||
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// (the way C handles undefined types),
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||||||
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// casting args to a pointer to Mix_Music
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||||||
|
Mix_Music* = (Mix_Music*)args;
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||||||
|
int ret;
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||||||
|
|
||||||
|
if(Mix_FadeOutMusic(500) == 0) { // Starting the fadeout
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||||||
|
while (Mix_PlayingMusic()) {
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||||||
|
; // Waiting until it's done
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||||||
|
}
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||||||
|
} else {
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||||||
|
fprintf(stderr,"WARNING: couldn't fade out");
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||||||
|
Mix_HaltMusic();
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||||||
|
}
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|
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ret = Mix_PlayMusic(argsCast->music,-1);
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||||||
|
if (ret != 0) {
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||||||
|
fprintf(stderr,"WARNING: %s\n",Mix_GetError());
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||||||
|
}
|
||||||
|
|
||||||
|
// We're supposed to return an int to use SDL_thread.
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||||||
|
// We're not using the return value though.
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||||||
|
return ret;
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||||||
|
}
|
||||||
|
|
||||||
|
// Global functions
|
||||||
|
|
||||||
|
AudioHandler newAudioHandler(int volMusic, int volSFX) {
|
||||||
|
AudioHandler audioHandler;
|
||||||
|
int nb_SFX = NB_AUDIO_DEFINED - NB_MUSC_DEFINED - 1;
|
||||||
|
|
||||||
|
// Generating paths to musics and SFX files using macros
|
||||||
|
char* musicsPaths[] = {MACRO_FOR_ALL_MUSICS(MACRO_TO_MUSIC_PATH)};
|
||||||
|
char* sfxPaths[] = {MACRO_FOR_ALL_SFX(MACRO_TO_SFX_PATH)};
|
||||||
|
audioHandler.canPlayAudio = true;
|
||||||
|
|
||||||
|
// Initialize + verify opening audio device
|
||||||
|
if (0 != Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 1024)) {
|
||||||
|
fprintf(stderr,"Error when initializing audio.\n");
|
||||||
|
return audioHandler;
|
||||||
|
}
|
||||||
|
|
||||||
|
audioHandler.canPlayAudio = true;
|
||||||
|
|
||||||
|
fprintf(stderr,"Musics: %d\nSFX: %d\n",NB_MUSIC_DEFINED,nb_SFX);
|
||||||
|
|
||||||
|
// Loading musics
|
||||||
|
for (size_t i = 0; i < NB_MUSIC_DEFINED; i++) {
|
||||||
|
if ((audioHandler.musics[i] = LoadMUS(musicPaths[i]) == NULL)) {
|
||||||
|
fprintf(stderr,"WARNING: %s\n",Mix_GetError());
|
||||||
|
} else {
|
||||||
|
fprintf(stderr,"Loaded %s\n",musicPaths[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Mix_VolumeMusic(volMusic);
|
||||||
|
|
||||||
|
// Initializing SFX
|
||||||
|
Mix_AllocateChannels(NBCHANNELS);
|
||||||
|
|
||||||
|
// Loading SFX
|
||||||
|
for (size_t i = 0; i < nb_SFX; i++) {
|
||||||
|
if ((audioHandler.sfx[i] = Mix_LoadWAV(sfxPaths[i])) == NULL) {
|
||||||
|
fprintf(stderr,"WARNING: %s\n",Mix_GetError());
|
||||||
|
} else {
|
||||||
|
fprintf(stderr,"Loaded %s\n",sfxPaths[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
changeSFXVol(volSFX);
|
||||||
|
return audioHandler;
|
||||||
|
}
|
||||||
|
|
||||||
|
void changeSFXVol(int volSFX) {
|
||||||
|
for (size_t i = 0; i < NBCHANNELS; i++) {
|
||||||
|
Mix_Volume(i, volSFX);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void freeAudioHandler(AudioHandler* audioHandler) {
|
||||||
|
// Freeing the music
|
||||||
|
Mix_HaltMusic();
|
||||||
|
for (size_t i = 0; i < NB_MUSIC_DEFINED; i++) {
|
||||||
|
if (audioHandler->musics[i] != NULL) {
|
||||||
|
Mix_FreeMusic(audioHandler->musics[i]);
|
||||||
|
audioHandler->musics[i] = NULL; // "to be safe...", says the docs
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Freeing the SFX
|
||||||
|
Mix_HaltChannel(-1); // Stopping playback on ALL channels
|
||||||
|
for (size_t i = 0; i < NB_AUDIO_DEFINED - NB_MUSIC_DEFINED - 1; i++) {
|
||||||
|
if (audioHandler->sfx[i] != NULL) {
|
||||||
|
Mix_FreeChunk(audioHandler->sfx[i]);
|
||||||
|
audioHandler->sfx[i] = NULL; // "to be safe...", says the docs
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Mix_AllocateChannels(0); // Unallocating all channels
|
||||||
|
|
||||||
|
// Un-initializing the audio
|
||||||
|
Mix_CloseAudio();
|
||||||
|
|
||||||
|
audioHandler->canPlayAudio = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
void playMusic(EnumAudios music, AudioHandler audioHandler) {
|
||||||
|
// music should be a value of EnumAudios that starts by MUSIC_
|
||||||
|
// In other words, it should be an enumerator before NB_MUSIC_DEFINED.
|
||||||
|
if (music >= NB_MUSIC_DEFINED) {
|
||||||
|
fprintf(stderr,"WARNING: tried to play an arbitrary value as a music\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Checking if audio has been opened.
|
||||||
|
if (!(audioHandler.canPlayAudio)) {
|
||||||
|
fprintf(stderr,"WARNING: tried to play a music with an unusable AudioHandler\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// If another music is playing, fading the previous one out
|
||||||
|
if (Mix_PlayingMusic()) {
|
||||||
|
// Creating the thread, passing the music as parameter
|
||||||
|
SDL_Thread* thread = SDL_CreateThread(&fadeOut, "Fade out", (void*)audioHandler.musics[music]);
|
||||||
|
if (thread == NULL) {
|
||||||
|
fprintf(stderr,"WARNING: couldn't create thread to fade out music\n");
|
||||||
|
}
|
||||||
|
// playMusic won't wait until the thread is finished to end
|
||||||
|
SDL_DetachThread(thread);
|
||||||
|
// No other music is playing: starting a music normally.
|
||||||
|
} else {
|
||||||
|
if (Mix_PlayMusic(audioHandler.musics[music],-1) != 0) {
|
||||||
|
fprintf("WARNING: %s\n",Mix_GetError());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void playSFX(EnumAudios sfx, AudioHandler audioHandler) {
|
||||||
|
int nb_SFX = NB_AUDIO_DEFINED - NB_MUSIC_DEFINED - 1;
|
||||||
|
int channel;
|
||||||
|
Mix_Chunk* chunkSFX;
|
||||||
|
|
||||||
|
// sfx should be a value of EnumAudios that starts by SFX_.
|
||||||
|
// In other words, it should be an enumerator after NB_MUSIC_DEFINED but before NB_AUDIO_DEFINED.
|
||||||
|
if (sfx <= NB_MUSIC_DEFINED || sfx >= NB_AUDIO_DEFINED) {
|
||||||
|
fprintf(stderr,"WARNING: tried to play an arbitrary value as a SFX\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Checking if SFX has been opened.
|
||||||
|
if (!(audioHandler.canPlayAudio)) {
|
||||||
|
fprintf(stderr,"WARNING: tried to play an SFX with an unusable AudioHandler\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Getting actual chunk
|
||||||
|
chunkSFX = audioHandler.sfx[sfx - NB_MUSIC_DEFINED - 1];
|
||||||
|
// Getting first available channel
|
||||||
|
channel = Mix_GroupAvailable(-1);
|
||||||
|
if (channel == -1) {
|
||||||
|
fprintf(stderr,"WARNING: cannot play SFX because all channels are used\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Playing the SFX once (0 repetitions)
|
||||||
|
if (Mix_PlayChannel(channel,chunkSFX,0) != 0) {
|
||||||
|
fprintf(stderr,"WARNING: %s\n",Mix_GetError());
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
Loading…
Reference in new issue