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Select Game-Mode On World Creation

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This commit is contained in:
TheBrokenRail 2020-11-23 18:03:28 -05:00
parent e8b2f1c22f
commit 3244b87be0
4 changed files with 78 additions and 11 deletions
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1
debian/client/common/usr/bin/minecraft-pi vendored
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@ -5,7 +5,6 @@ set -e
# Ensure Features Are Selected
MCPI_FEATURES="$(zenity --class 'Minecraft - Pi edition' --list --checklist --column 'Enabled' --column 'Feature' \
TRUE 'Touch GUI' \
FALSE 'Survival Mode' \
TRUE 'Fix Bow & Arrow' \
TRUE 'Fix Attacking' \
TRUE 'Mob Spawning' \

10
mods/src/extra.c
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@ -247,16 +247,6 @@ __attribute__((constructor)) static void init() {
set_is_survival(1);
overwrite_calls((void *) Minecraft_setIsCreativeMode, Minecraft_setIsCreativeMode_injection);
// Get Default Game Mode
if (!is_server) {
int default_game_mode = !extra_has_feature("Survival Mode");
// Set Default Game Mode
unsigned char default_game_mode_patch[4] = {default_game_mode ? 0x01 : 0x00, 0x30, 0xa0, 0xe3};
patch((void *) 0x3d9b8, default_game_mode_patch);
patch((void *) 0x38a78, default_game_mode_patch);
}
// Disable Item Dropping Using The Cursor When Cursor Is Hidden
overwrite_calls((void *) Gui_tickItemDrop, Gui_tickItemDrop_injection);
// Disable Opening Inventory Using The Cursor When Cursor Is Hidden

52
mods/src/extra.cpp
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@ -115,6 +115,51 @@ extern "C" {
}
}
// Get Minecraft From Screen
static unsigned char *get_minecraft_from_screen(unsigned char *screen) {
return *(unsigned char **) (screen + 0x14);
}
// Redirect Create World Button To SimpleLevelChooseScreen
#define WORLD_NAME "world"
#define SIMPLE_LEVEL_CHOOSE_SCREEN_SIZE 0x68
static void SelectWorldScreen_tick_injection(unsigned char *screen) {
bool create_world = *(bool *) (screen + 0xfc);
if (create_world) {
// Get New World Name
std::string new_name;
(*SelectWorldScreen_getUniqueLevelName)(new_name, screen, WORLD_NAME);
// Create SimpleLevelChooseScreen
unsigned char *new_screen = (unsigned char *) ::operator new(SIMPLE_LEVEL_CHOOSE_SCREEN_SIZE);
(*SimpleChooseLevelScreen)(new_screen, new_name);
// Set Screen
unsigned char *minecraft = get_minecraft_from_screen(screen);
(*Minecraft_setScreen)(minecraft, new_screen);
// Finish
*(bool *) (screen + 0xf9) = true;
} else {
(*SelectWorldScreen_tick)(screen);
}
}
static void Touch_SelectWorldScreen_tick_injection(unsigned char *screen) {
bool create_world = *(bool *) (screen + 0x154);
if (create_world) {
// Get New World Name
std::string new_name;
(*Touch_SelectWorldScreen_getUniqueLevelName)(new_name, screen, WORLD_NAME);
// Create SimpleLevelChooseScreen
unsigned char *new_screen = (unsigned char *) ::operator new(SIMPLE_LEVEL_CHOOSE_SCREEN_SIZE);
(*SimpleChooseLevelScreen)(new_screen, new_name);
// Set Screen
unsigned char *minecraft = get_minecraft_from_screen(screen);
(*Minecraft_setScreen)(minecraft, new_screen);
// Finish
*(bool *) (screen + 0x151) = true;
} else {
(*Touch_SelectWorldScreen_tick)(screen);
}
}
__attribute((constructor)) static void init() {
// Implement AppPlatform::readAssetFile So Translations Work
overwrite((void *) AppPlatform_readAssetFile, (void *) AppPlatform_readAssetFile_injection);
@ -134,5 +179,12 @@ extern "C" {
// Tick Dynamic Textures (Animated Water)
overwrite_calls((void *) Minecraft_tick, (void *) Minecraft_tick_injection);
}
// Hijack Create World Button
patch_address(SelectWorldScreen_tick_vtable_addr, (void *) SelectWorldScreen_tick_injection);
patch_address(Touch_SelectWorldScreen_tick_vtable_addr, (void *) Touch_SelectWorldScreen_tick_injection);
// Make The SimpleChooseLevelScreen Back Button Go To SelectWorldScreen Instead Of StartMenuScreen
unsigned char simple_choose_level_screen_back_button_patch[4] = {0x05, 0x10, 0xa0, 0xe3};
patch((void *) 0x31144, simple_choose_level_screen_back_button_patch);
}
}

26
mods/src/minecraft.h
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@ -154,6 +154,18 @@ static Screen_updateEvents_t Screen_updateEvents = (Screen_updateEvents_t) 0x28e
typedef void (*Screen_keyboardNewChar_t)(unsigned char *screen, char key);
typedef void (*Screen_keyPressed_t)(unsigned char *screen, int32_t key);
typedef void (*Screen_tick_t)(unsigned char *screen);
// SelectWorldScreen
static Screen_tick_t SelectWorldScreen_tick = (Screen_tick_t) 0x38a2c;
static void *SelectWorldScreen_tick_vtable_addr = (void *) 0x104f78;
// Touch::SelectWorldScreen
static Screen_tick_t Touch_SelectWorldScreen_tick = (Screen_tick_t) 0x3d96c;
static void *Touch_SelectWorldScreen_tick_vtable_addr = (void *) 0x105780;
// ItemInstance
typedef unsigned char *(*ItemInstance_t)(unsigned char *item_instance, unsigned char *item);
@ -284,6 +296,20 @@ static RakNet_SystemAddress_ToString_t RakNet_SystemAddress_ToString = (RakNet_S
typedef void (*ServerSideNetworkHandler_displayGameMessage_t)(unsigned char *server_side_network_handler, std::string const& message);
static ServerSideNetworkHandler_displayGameMessage_t ServerSideNetworkHandler_displayGameMessage = (ServerSideNetworkHandler_displayGameMessage_t) 0x750c4;
// SimpleChooseLevelScreen
typedef unsigned char *(*SimpleChooseLevelScreen_t)(unsigned char *simple_choose_level_screen, std::string const& world_name);
static SimpleChooseLevelScreen_t SimpleChooseLevelScreen = (SimpleChooseLevelScreen_t) 0x31404;
// SelectWorldScreen
typedef std::string &(*SelectWorldScreen_getUniqueLevelName_t)(std::string &new_name, unsigned char *screen, std::string const& name);
static SelectWorldScreen_getUniqueLevelName_t SelectWorldScreen_getUniqueLevelName = (SelectWorldScreen_getUniqueLevelName_t) 0x388ec;
// Touch::SelectWorldScreen
static SelectWorldScreen_getUniqueLevelName_t Touch_SelectWorldScreen_getUniqueLevelName = (SelectWorldScreen_getUniqueLevelName_t) 0x3d82c;
#endif
#pragma GCC diagnostic pop