124 lines
4.1 KiB
C++
124 lines
4.1 KiB
C++
#include <string>
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#include <libreborn/libreborn.h>
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#include <symbols/minecraft.h>
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#include <media-layer/audio.h>
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#include "sound.h"
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#include "../feature/feature.h"
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#include "../override/override.h"
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#include "../init/init.h"
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// Resolve Source File Path
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#define SOURCE_FILE_BASE "data/libminecraftpe.so"
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std::string _sound_get_source_file() {
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static bool source_loaded = false;
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static std::string source;
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// Check
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if (source_loaded) {
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// Already Resolved
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return source;
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} else {
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// Resolve
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// Get Binary Directory
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char *binary_directory = get_mcpi_directory();
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// Get Full Path
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char *full_path = NULL;
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safe_asprintf(&full_path, "%s/" SOURCE_FILE_BASE, binary_directory);
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// Handle Overrides
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char *overridden_full_path = override_get_path(full_path);
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if (overridden_full_path != NULL) {
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free(full_path);
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full_path = overridden_full_path;
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}
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// Check If Sound Exists
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if (access(full_path, F_OK) == -1) {
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// Fail
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WARN("%s", "Audio Source File Doesn't Exist: " SOURCE_FILE_BASE);
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source.assign("");
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} else {
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// Set
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source.assign(full_path);
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}
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// Free
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free(full_path);
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// Mark As Loaded
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source_loaded = true;
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// Return
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return _sound_get_source_file();
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}
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}
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// Play Sound
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// The pitch value is unsued because it causes glitchy sounds, it is seemingly unused in MCPE as well.
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static void play(std::string name, float x, float y, float z, float volume, bool is_ui) {
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std::string source = _sound_get_source_file();
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std::string resolved_name = _sound_pick(name);
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if (source.size() > 0 && resolved_name.size() > 0) {
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media_audio_play(source.c_str(), resolved_name.c_str(), x, y, z, 1.0f, volume, is_ui);
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}
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}
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static void SoundEngine_playUI_injection(__attribute__((unused)) unsigned char *sound_engine, std::string const& name, __attribute__((unused)) float pitch, float volume) {
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play(name, 0, 0, 0, volume, true);
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}
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static void SoundEngine_play_injection(__attribute__((unused)) unsigned char *sound_engine, std::string const& name, float x, float y, float z, __attribute__((unused)) float pitch, float volume) {
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play(name, x, y, z, volume, false);
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}
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// Refresh Data
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static void SoundEngine_update_injection(unsigned char *sound_engine, unsigned char *listener_mob, __attribute__((unused)) float listener_angle) {
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// Variables
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static float volume = 0;
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static float x = 0;
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static float y = 0;
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static float z = 0;
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static float yaw = 0;
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// SoundEngine Properties
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unsigned char *options = *(unsigned char **) (sound_engine + SoundEngine_options_property_offset);
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// Volume
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int32_t sound_enabled = *(int32_t *) (options + Options_sound_property_offset);
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volume = sound_enabled ? 1 : 0;
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// Position And Rotation
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if (listener_mob != NULL) {
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// Values
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x = *(float *) (listener_mob + Entity_x_property_offset);
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y = *(float *) (listener_mob + Entity_y_property_offset);
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z = *(float *) (listener_mob + Entity_z_property_offset);
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yaw = *(float *) (listener_mob + Entity_yaw_property_offset);
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}
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// Log
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media_audio_update(volume, x, y, z, yaw);
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}
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// Resolve All Sounds On Init
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// SoundEngine::init Is Called After The Audio Engine Has Been Loaded
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static void SoundEngine_init_injection(unsigned char *sound_engine, unsigned char *minecraft, unsigned char *options) {
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// Call Original Method
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(*SoundEngine_init)(sound_engine, minecraft, options);
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// Resolve Sounds
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_sound_resolve_all();
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}
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// Init
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void init_sound() {
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// Implement Sound Engine
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if (feature_has("Implement Sound Engine", 0)) {
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overwrite_calls((void *) SoundEngine_playUI, (void *) SoundEngine_playUI_injection);
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overwrite_calls((void *) SoundEngine_play, (void *) SoundEngine_play_injection);
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overwrite_calls((void *) SoundEngine_update, (void *) SoundEngine_update_injection);
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overwrite_calls((void *) SoundEngine_init, (void *) SoundEngine_init_injection);
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}
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}
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