minecraft-pi-reborn/mods/src/misc/misc.cpp

76 lines
2.8 KiB
C++

#include <string>
#include <fstream>
#include <streambuf>
#include <cstring>
#include <libreborn/libreborn.h>
#include <symbols/minecraft.h>
#include <mods/feature/feature.h>
#include "misc-internal.h"
#include <mods/misc/misc.h>
// Read Asset File
static AppPlatform_readAssetFile_return_value AppPlatform_readAssetFile_injection(__attribute__((unused)) unsigned char *app_platform, std::string const& path) {
// Open File
std::ifstream stream("data/" + path, std::ios_base::binary | std::ios_base::ate);
if (!stream) {
// Does Not Exist
AppPlatform_readAssetFile_return_value ret;
ret.length = -1;
ret.data = NULL;
return ret;
}
// Read File
long len = stream.tellg();
char *buf = new char[len];
stream.seekg(0, stream.beg);
stream.read(buf, len);
stream.close();
// Return String
AppPlatform_readAssetFile_return_value ret;
ret.length = len;
ret.data = strdup(buf);
return ret;
}
// Add Missing Buttons To Pause Menu
static void PauseScreen_init_injection(unsigned char *screen) {
// Call Original Method
(*PauseScreen_init)(screen);
// Check If Server
unsigned char *minecraft = *(unsigned char **) (screen + Screen_minecraft_property_offset);
unsigned char *rak_net_instance = *(unsigned char **) (minecraft + Minecraft_rak_net_instance_property_offset);
if (rak_net_instance != NULL) {
unsigned char *rak_net_instance_vtable = *(unsigned char**) rak_net_instance;
RakNetInstance_isServer_t RakNetInstance_isServer = *(RakNetInstance_isServer_t *) (rak_net_instance_vtable + RakNetInstance_isServer_vtable_offset);
if ((*RakNetInstance_isServer)(rak_net_instance)) {
// Add Button
std::vector<unsigned char *> *rendered_buttons = (std::vector<unsigned char *> *) (screen + Screen_rendered_buttons_property_offset);
std::vector<unsigned char *> *selectable_buttons = (std::vector<unsigned char *> *) (screen + Screen_selectable_buttons_property_offset);
unsigned char *button = *(unsigned char **) (screen + PauseScreen_server_visibility_button_property_offset);
rendered_buttons->push_back(button);
selectable_buttons->push_back(button);
// Update Button Text
(*PauseScreen_updateServerVisibilityText)(screen);
}
}
}
// Init
void _init_misc_cpp() {
// Implement AppPlatform::readAssetFile So Translations Work
if (feature_has("Load Language Files", server_enabled)) {
overwrite((void *) AppPlatform_readAssetFile, (void *) AppPlatform_readAssetFile_injection);
}
// Fix Pause Menu
if (feature_has("Fix Pause Menu", server_disabled)) {
// Add Missing Buttons To Pause Menu
patch_address(PauseScreen_init_vtable_addr, (void *) PauseScreen_init_injection);
}
}