Minecraft: Pi Edition Modding Project https://discord.com/invite/aDqejQGMMy
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#include <libreborn/libreborn.h>
#include <symbols/minecraft.h>
#include "home.h"
#include "../init/init.h"
// Minecraft Pi User Data Root
#ifndef MCPI_SERVER_MODE
// Store Game Data In "~/.minecraft-pi" Instead Of "~/.minecraft" To Avoid Conflicts
#define NEW_PATH "/.minecraft-pi"
#else
// Store Game Data In Launch Directory
#define NEW_PATH ""
// Store Launch Directory
__attribute__((constructor)) static char *get_launch_directory() {
static char *launch_directory = NULL;
if (launch_directory == NULL) {
launch_directory = getcwd(NULL, 0);
}
return launch_directory;
}
__attribute__((destructor)) static void free_launch_directory() {
free(get_launch_directory());
}
// Pretend $HOME Is Launch Directory
HOOK(getenv, char *, (const char *name)) {
if (strcmp(name, "HOME") == 0) {
return get_launch_directory();
} else {
ensure_getenv();
return (*real_getenv)(name);
}
}
#endif
// Get MCPI Home Directory
char *home_get() {
static char *dir = NULL;
// Load
if (dir == NULL) {
safe_asprintf(&dir, "%s" NEW_PATH, getenv("HOME"));
}
// Return
return dir;
}
// Free
__attribute__((destructor)) static void _free_home() {
free(home_get());
}
// Init
void init_home() {
// Store Data In ~/.minecraft-pi Instead Of ~/.minecraft
patch_address((void *) default_path, (void *) NEW_PATH);
// Change Directory To Binary Directory Manually
unsigned char nop_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
patch((void *) 0xe0ac, nop_patch);
char *binary_directory = get_binary_directory();
chdir(binary_directory);
free(binary_directory);
}