minecraft-pi-reborn/mods/src/misc/misc.c
2024-02-15 23:02:44 -05:00

851 lines
32 KiB
C

#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <math.h>
#ifndef MCPI_HEADLESS_MODE
#include <GLES/gl.h>
#endif
#include <libreborn/libreborn.h>
#include <symbols/minecraft.h>
#include <SDL/SDL.h>
#include <media-layer/core.h>
#include <mods/init/init.h>
#include <mods/feature/feature.h>
#include "misc-internal.h"
#include <mods/misc/misc.h>
// Heart food overlay
static int heal_amount = 0, heal_amount_drawing = 0;
void Gui_renderHearts_injection(Gui *gui) {
// Get heal_amount
heal_amount = heal_amount_drawing = 0;
Inventory *inventory = gui->minecraft->player->inventory;
ItemInstance *held_ii = Inventory_getSelected(inventory);
if (held_ii) {
Item *held = Item_items[held_ii->id];
if (held->vtable->isFood(held) && held_ii->id) {
int nutrition = ((FoodItem *) held)->nutrition;
int cur_health = gui->minecraft->player->health;
int heal_num = fmin(cur_health + nutrition, 20) - cur_health;
heal_amount = heal_amount_drawing = heal_num;
}
}
// Call original
Gui_renderHearts(gui);
}
#define PINK_HEART_FULL 70
#define PINK_HEART_HALF 79
Gui_blit_t Gui_blit_renderHearts_original = NULL;
void Gui_renderHearts_GuiComponent_blit_overlay_empty_injection(Gui *gui, int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t w1, int32_t h1, int32_t w2, int32_t h2) {
// Call original
Gui_blit_renderHearts_original(gui, x1, y1, x2, y2, w1, h1, w2, h2);
// Render the overlay
if (heal_amount_drawing == 1) {
// Half heart
Gui_blit_renderHearts_original(gui, x1, y1, PINK_HEART_HALF, 0, w1, h1, w2, h2);
heal_amount_drawing = 0;
} else if (heal_amount_drawing > 0) {
// Full heart
Gui_blit_renderHearts_original(gui, x1, y1, PINK_HEART_FULL, 0, w1, h1, w2, h2);
heal_amount_drawing -= 2;
}
}
void Gui_renderHearts_GuiComponent_blit_overlay_hearts_injection(Gui *gui, int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t w1, int32_t h1, int32_t w2, int32_t h2) {
// Offset the overlay
if (x2 == 52) {
heal_amount_drawing += 2;
} else if (x2 == 61 && heal_amount) {
// Half heart, flipped
Gui_blit_renderHearts_original(gui, x1, y1, PINK_HEART_FULL, 0, w1, h1, w2, h2);
heal_amount_drawing += 1;
};
// Call original
Gui_blit_renderHearts_original(gui, x1, y1, x2, y2, w1, h1, w2, h2);
heal_amount_drawing = fmin(heal_amount_drawing, heal_amount);
}
// Classic HUD
#define DEFAULT_HUD_PADDING 2
#define NEW_HUD_PADDING 1
#define HUD_ELEMENT_WIDTH 82
#define HUD_ELEMENT_HEIGHT 9
#define TOOLBAR_HEIGHT 22
#define SLOT_WIDTH 20
#define DEFAULT_BUBBLES_PADDING 1
#define NUMBER_OF_SLOTS 9
static int use_classic_hud = 0;
static void Gui_renderHearts_GuiComponent_blit_hearts_injection(Gui *component, int32_t x_dest, int32_t y_dest, int32_t x_src, int32_t y_src, int32_t width_dest, int32_t height_dest, int32_t width_src, int32_t height_src) {
Minecraft *minecraft = component->minecraft;
x_dest -= DEFAULT_HUD_PADDING;
float width = ((float) minecraft->screen_width) * Gui_InvGuiScale;
float height = ((float) minecraft->screen_height) * Gui_InvGuiScale;
x_dest += (width - (NUMBER_OF_SLOTS * SLOT_WIDTH)) / 2;
y_dest -= DEFAULT_HUD_PADDING;
y_dest += height - HUD_ELEMENT_HEIGHT - TOOLBAR_HEIGHT - NEW_HUD_PADDING;
// Call Original Method
Gui_blit(component, x_dest, y_dest, x_src, y_src, width_dest, height_dest, width_src, height_src);
}
static void Gui_renderHearts_GuiComponent_blit_armor_injection(Gui *component, int32_t x_dest, int32_t y_dest, int32_t x_src, int32_t y_src, int32_t width_dest, int32_t height_dest, int32_t width_src, int32_t height_src) {
Minecraft *minecraft = component->minecraft;
x_dest -= DEFAULT_HUD_PADDING + HUD_ELEMENT_WIDTH;
float width = ((float) minecraft->screen_width) * Gui_InvGuiScale;
float height = ((float) minecraft->screen_height) * Gui_InvGuiScale;
x_dest += width - ((width - (NUMBER_OF_SLOTS * SLOT_WIDTH)) / 2) - HUD_ELEMENT_WIDTH;
y_dest -= DEFAULT_HUD_PADDING;
y_dest += height - HUD_ELEMENT_HEIGHT - TOOLBAR_HEIGHT - NEW_HUD_PADDING;
// Call Original Method
Gui_blit(component, x_dest, y_dest, x_src, y_src, width_dest, height_dest, width_src, height_src);
}
static void Gui_renderBubbles_GuiComponent_blit_injection(Gui *component, int32_t x_dest, int32_t y_dest, int32_t x_src, int32_t y_src, int32_t width_dest, int32_t height_dest, int32_t width_src, int32_t height_src) {
Minecraft *minecraft = component->minecraft;
x_dest -= DEFAULT_HUD_PADDING;
float width = ((float) minecraft->screen_width) * Gui_InvGuiScale;
float height = ((float) minecraft->screen_height) * Gui_InvGuiScale;
x_dest += (width - (NUMBER_OF_SLOTS * SLOT_WIDTH)) / 2;
y_dest -= DEFAULT_HUD_PADDING + DEFAULT_BUBBLES_PADDING + HUD_ELEMENT_HEIGHT;
y_dest += height - HUD_ELEMENT_HEIGHT - TOOLBAR_HEIGHT - HUD_ELEMENT_HEIGHT - NEW_HUD_PADDING;
// Call Original Method
Gui_blit(component, x_dest, y_dest, x_src, y_src, width_dest, height_dest, width_src, height_src);
}
// Additional GUI Rendering
static int hide_chat_messages = 0;
bool is_in_chat = 0;
static int render_selected_item_text = 0;
static void Gui_renderChatMessages_injection(Gui *gui, int32_t y_offset, uint32_t max_messages, bool disable_fading, Font *font) {
// Handle Classic HUD
if (use_classic_hud) {
Minecraft *minecraft = gui->minecraft;
if (!Minecraft_isCreativeMode(minecraft)) {
y_offset -= (HUD_ELEMENT_HEIGHT * 2) + NEW_HUD_PADDING;
}
}
// Call Original Method
if (!hide_chat_messages && !is_in_chat) {
Gui_renderChatMessages(gui, y_offset, max_messages, disable_fading, font);
}
// Render Selected Item Text
if (render_selected_item_text) {
// Fix GL Mode
#ifndef MCPI_HEADLESS_MODE
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
#endif
// Calculate Selected Item Text Scale
Minecraft *minecraft = gui->minecraft;
int32_t screen_width = minecraft->screen_width;
float scale = ((float) screen_width) * Gui_InvGuiScale;
// Render Selected Item Text
Gui_renderOnSelectItemNameText(gui, (int32_t) scale, font, y_offset - 0x13);
}
}
// Reset Selected Item Text Timer On Slot Select
static uint32_t reset_selected_item_text_timer = 0;
static void Gui_tick_injection(Gui *gui) {
// Call Original Method
Gui_tick(gui);
// Handle Reset
if (render_selected_item_text) {
float *selected_item_text_timer = &gui->selected_item_text_timer;
if (reset_selected_item_text_timer) {
// Reset
*selected_item_text_timer = 0;
reset_selected_item_text_timer = 0;
}
}
}
// Trigger Reset Selected Item Text Timer On Slot Select
static void Inventory_selectSlot_injection(Inventory *inventory, int32_t slot) {
// Call Original Method
Inventory_selectSlot(inventory, slot);
// Trigger Reset Selected Item Text Timer
if (render_selected_item_text) {
reset_selected_item_text_timer = 1;
}
}
// Translucent Toolbar
static void Gui_renderToolBar_injection(Gui *gui, float param_1, int32_t param_2, int32_t param_3) {
// Call Original Method
#ifndef MCPI_HEADLESS_MODE
int was_blend_enabled = glIsEnabled(GL_BLEND);
if (!was_blend_enabled) {
glEnable(GL_BLEND);
}
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
#endif
Gui_renderToolBar(gui, param_1, param_2, param_3);
#ifndef MCPI_HEADLESS_MODE
if (!was_blend_enabled) {
glDisable(GL_BLEND);
}
#endif
}
static void Gui_renderToolBar_glColor4f_injection(GLfloat red, GLfloat green, GLfloat blue, __attribute__((unused)) GLfloat alpha) {
// Fix Alpha
#ifndef MCPI_HEADLESS_MODE
glColor4f(red, green, blue, 1.0f);
#else
(void) red;
(void) green;
(void) blue;
#endif
}
// Fix Screen Rendering When GUI is Hidden
static void Screen_render_injection(Screen *screen, int32_t param_1, int32_t param_2, float param_3) {
// Fix
#ifndef MCPI_HEADLESS_MODE
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
#endif
// Call Original Method
Screen_render_non_virtual(screen, param_1, param_2, param_3);
}
// Sanitize Username
#define MAX_USERNAME_LENGTH 16
static void LoginPacket_read_injection(LoginPacket *packet, RakNet_BitStream *bit_stream) {
// Call Original Method
LoginPacket_read_non_virtual(packet, bit_stream);
// Prepare
RakNet_RakString *rak_string = &packet->username;
// Get Original Username
RakNet_RakString_SharedString *shared_string = rak_string->sharedString;
char *c_str = shared_string->c_str;
// Sanitize
char *new_username = strdup(c_str);
ALLOC_CHECK(new_username);
sanitize_string(&new_username, MAX_USERNAME_LENGTH, 0);
// Set New Username
RakNet_RakString_Assign(rak_string, new_username);
// Free
free(new_username);
}
// Fix RakNet::RakString Security Bug
//
// RakNet::RakString's format constructor is often given unsanitized user input and is never used for formatting,
// this is a massive security risk, allowing clients to run arbitrary format specifiers, this disables the
// formatting functionality.
static RakNet_RakString *RakNet_RakString_injection(RakNet_RakString *rak_string, const char *format, ...) {
// Call Original Method
return RakNet_RakString_constructor(rak_string, "%s", format);
}
// Print Error Message If RakNet Startup Fails
static char *RAKNET_ERROR_NAMES[] = {
"Success",
"Already Started",
"Invalid Socket Descriptors",
"Invalid Max Connections",
"Socket Family Not Supported",
"Part Already In Use",
"Failed To Bind Port",
"Failed Test Send",
"Port Cannot Be 0",
"Failed To Create Network Thread",
"Couldn't Generate GUID",
"Unknown"
};
#ifdef MCPI_SERVER_MODE
#define PRINT_RAKNET_STARTUP_FAILURE ERR
#else
#define PRINT_RAKNET_STARTUP_FAILURE WARN
#endif
static RakNet_StartupResult RakNetInstance_host_RakNet_RakPeer_Startup_injection(RakNet_RakPeer *rak_peer, unsigned short maxConnections, unsigned char *socketDescriptors, uint32_t socketDescriptorCount, int32_t threadPriority) {
// Call Original Method
RakNet_StartupResult result = rak_peer->vtable->Startup(rak_peer, maxConnections, socketDescriptors, socketDescriptorCount, threadPriority);
// Print Error
if (result != RAKNET_STARTED) {
PRINT_RAKNET_STARTUP_FAILURE("Failed To Start RakNet: %s", RAKNET_ERROR_NAMES[result]);
}
// Return
return result;
}
// Fix Bug Where RakNetInstance Starts Pinging Potential Servers Before The "Join Game" Screen Is Opened
static RakNetInstance *RakNetInstance_injection(RakNetInstance *rak_net_instance) {
// Call Original Method
RakNetInstance *result = RakNetInstance_constructor(rak_net_instance);
// Fix
rak_net_instance->pinging_for_hosts = 0;
// Return
return result;
}
// Close Current Screen On Death To Prevent Bugs
static void LocalPlayer_die_injection(LocalPlayer *entity, Entity *cause) {
// Close Screen
Minecraft *minecraft = entity->minecraft;
Minecraft_setScreen(minecraft, NULL);
// Call Original Method
LocalPlayer_die_non_virtual(entity, cause);
}
// Fix Furnace Not Checking Item Auxiliary When Inserting New Item
static int32_t FurnaceScreen_handleAddItem_injection(FurnaceScreen *furnace_screen, int32_t slot, ItemInstance *item) {
// Get Existing Item
FurnaceTileEntity *tile_entity = furnace_screen->tile_entity;
ItemInstance *existing_item = tile_entity->vtable->getItem(tile_entity, slot);
// Check Item
int valid;
if (item->id == existing_item->id && item->auxiliary == existing_item->auxiliary) {
// Item Matches, Is Valid
valid = 1;
} else {
// Item Doesn't Match, Check If Existing Item Is Empty
if ((existing_item->id | existing_item->count | existing_item->auxiliary) == 0) {
// Existing Item Is Empty, Is Valid
valid = 1;
} else {
// Existing Item Isn't Empty, Isn't Valid
valid = 0;
}
}
// Call Original Method
if (valid) {
// Valid
return FurnaceScreen_handleAddItem(furnace_screen, slot, item);
} else {
// Invalid
return 0;
}
}
// Custom Cursor Rendering
//
// The default behavior for Touch GUI is to only render the cursor when the mouse is clicking, this fixes that.
// This also makes the cursor always render if the mouse is unlocked, instead of just when there is a Screen showing.
#ifndef MCPI_HEADLESS_MODE
static void GameRenderer_render_injection(GameRenderer *game_renderer, float param_1) {
// Call Original Method
GameRenderer_render(game_renderer, param_1);
// Check If Cursor Should Render
if (SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_OFF) {
// Fix GL Mode
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// Get X And Y
float x = Mouse_getX() * Gui_InvGuiScale;
float y = Mouse_getY() * Gui_InvGuiScale;
// Render Cursor
Minecraft *minecraft = game_renderer->minecraft;
Common_renderCursor(x, y, minecraft);
}
}
#endif
// Get Real Selected Slot
int32_t misc_get_real_selected_slot(Player *player) {
// Get Selected Slot
Inventory *inventory = player->inventory;
int32_t selected_slot = inventory->selectedSlot;
// Linked Slots
int32_t linked_slots_length = inventory->linked_slots_length;
if (selected_slot < linked_slots_length) {
int32_t *linked_slots = inventory->linked_slots;
selected_slot = linked_slots[selected_slot];
}
// Return
return selected_slot;
}
#ifndef MCPI_HEADLESS_MODE
// Properly Generate Buffers
static void anGenBuffers_injection(int32_t count, uint32_t *buffers) {
glGenBuffers(count, buffers);
}
#endif
// Fix Graphics Bug When Switching To First-Person While Sneaking
static void HumanoidMobRenderer_render_injection(HumanoidMobRenderer *model_renderer, Entity *entity, float param_2, float param_3, float param_4, float param_5, float param_6) {
HumanoidMobRenderer_render_non_virtual(model_renderer, entity, param_2, param_3, param_4, param_5, param_6);
HumanoidModel *model = model_renderer->model;
model->is_sneaking = 0;
}
// Custom API Port
HOOK(bind, int, (int sockfd, const struct sockaddr *addr, socklen_t addrlen)) {
const struct sockaddr *new_addr = addr;
struct sockaddr_in in_addr;
if (addr->sa_family == AF_INET) {
in_addr = *(const struct sockaddr_in *) new_addr;
if (in_addr.sin_port == ntohs(4711)) {
const char *new_port_str = getenv("MCPI_API_PORT");
long int new_port;
if (new_port_str != NULL && (new_port = strtol(new_port_str, NULL, 0)) != 0L) {
in_addr.sin_port = htons(new_port);
}
}
new_addr = (const struct sockaddr *) &in_addr;
}
ensure_bind();
return real_bind(sockfd, new_addr, addrlen);
}
// Change Grass Color
static int32_t get_color(LevelSource *level_source, int32_t x, int32_t z) {
Biome *biome = level_source->vtable->getBiome(level_source, x, z);
if (biome == NULL) {
return 0;
}
return biome->color;
}
#define BIOME_BLEND_SIZE 7
static int32_t GrassTile_getColor_injection(__attribute__((unused)) Tile *tile, LevelSource *level_source, int32_t x, __attribute__((unused)) int32_t y, int32_t z) {
int r_sum = 0;
int g_sum = 0;
int b_sum = 0;
int color_sum = 0;
int x_start = x - (BIOME_BLEND_SIZE / 2);
int z_start = z - (BIOME_BLEND_SIZE / 2);
for (int x_offset = 0; x_offset < BIOME_BLEND_SIZE; x_offset++) {
for (int z_offset = 0; z_offset < BIOME_BLEND_SIZE; z_offset++) {
int32_t color = get_color(level_source, x_start + x_offset, z_start + z_offset);
r_sum += (color >> 16) & 0xff;
g_sum += (color >> 8) & 0xff;
b_sum += color & 0xff;
color_sum++;
}
}
int r_avg = r_sum / color_sum;
int g_avg = g_sum / color_sum;
int b_avg = b_sum / color_sum;
return (r_avg << 16) | (g_avg << 8) | b_avg;
}
static int32_t TallGrass_getColor_injection(TallGrass *tile, LevelSource *level_source, int32_t x, int32_t y, int32_t z) {
int32_t original_color = TallGrass_getColor_non_virtual(tile, level_source, x, y, z);
if (original_color == 0x339933) {
return GrassTile_getColor_injection((Tile *) tile, level_source, x, y, z);
} else {
return original_color;
}
}
// Generate Caves
static void RandomLevelSource_buildSurface_injection(RandomLevelSource *random_level_source, int32_t chunk_x, int32_t chunk_y, unsigned char *chunk_data, Biome **biomes) {
// Call Original Method
RandomLevelSource_buildSurface(random_level_source, chunk_x, chunk_y, chunk_data, biomes);
// Get Level
Level *level = random_level_source->level;
// Get Cave Feature
LargeCaveFeature *cave_feature = &random_level_source->cave_feature;
// Generate
cave_feature->vtable->apply(cave_feature, (ChunkSource *) random_level_source, level, chunk_x, chunk_y, chunk_data, 0);
}
// No Block Tinting
static int32_t Tile_getColor_injection() {
return 0xffffff;
}
// Disable Hostile AI In Creative Mode
static Entity *PathfinderMob_findAttackTarget_injection(PathfinderMob *mob) {
// Call Original Method
Entity *target = mob->vtable->findAttackTarget(mob);
// Only modify the AI of monsters
if (mob->vtable->getCreatureBaseType(mob) != 1) {
return target;
}
// Check If Creative Mode
if (target != NULL && target->vtable->isPlayer(target)) {
Player *player = (Player *) target;
Inventory *inventory = player->inventory;
bool is_creative = inventory->is_creative;
if (is_creative) {
target = NULL;
}
}
// Return
return target;
}
// 3D Chests
static int32_t Tile_getRenderShape_injection(Tile *tile) {
if (tile == Tile_chest) {
// Don't Render "Simple" Chest Model
return -1;
} else {
// Call Original Method
return tile->vtable->getRenderShape(tile);
}
}
static ChestTileEntity *ChestTileEntity_injection(ChestTileEntity *tile_entity) {
// Call Original Method
ChestTileEntity_constructor(tile_entity);
// Enable Renderer
tile_entity->renderer_id = 1;
// Return
return tile_entity;
}
static bool is_rendering_chest = 0;
static void ModelPart_render_injection(ModelPart *model_part, float scale) {
// Start
is_rendering_chest = 1;
// Call Original Method
ModelPart_render(model_part, scale);
// Stop
is_rendering_chest = 0;
}
static void Tesselator_vertexUV_injection(Tesselator *tesselator, float x, float y, float z, float u, float v) {
// Fix Chest Texture
if (is_rendering_chest) {
v /= 2;
}
// Call Original Method
Tesselator_vertexUV(tesselator, x, y, z, u, v);
}
static bool ChestTileEntity_shouldSave_injection(__attribute__((unused)) unsigned char *tile_entity) {
return 1;
}
// Animated 3D Chest
static ContainerMenu *ContainerMenu_injection(ContainerMenu *container_menu, Container *container, int32_t param_1) {
// Call Original Method
ContainerMenu_constructor(container_menu, container, param_1);
// Play Animation
ChestTileEntity *tile_entity = (ChestTileEntity *) (((unsigned char *) container) - offsetof(ChestTileEntity, container));
bool is_client = tile_entity->is_client;
if (!is_client) {
container->vtable->startOpen(container);
}
// Return
return container_menu;
}
static ContainerMenu *ContainerMenu_destructor_injection(ContainerMenu *container_menu) {
// Play Animation
Container *container = container_menu->container;
ChestTileEntity *tile_entity = (ChestTileEntity *) (((unsigned char *) container) - offsetof(ChestTileEntity, container));
bool is_client = tile_entity->is_client;
if (!is_client) {
container->vtable->stopOpen(container);
}
// Call Original Method
return ContainerMenu_destructor_complete_non_virtual(container_menu);
}
#ifndef MCPI_HEADLESS_MODE
// Custom Outline Color
static void glColor4f_injection(__attribute__((unused)) GLfloat red, __attribute__((unused)) GLfloat green, __attribute__((unused)) GLfloat blue, __attribute__((unused)) GLfloat alpha) {
// Set Color
glColor4f(0, 0, 0, 0.4);
// Find Line Width
char *custom_line_width = getenv("MCPI_BLOCK_OUTLINE_WIDTH");
float line_width;
if (custom_line_width != NULL) {
// Custom
line_width = strtof(custom_line_width, NULL);
} else {
// Guess
line_width = 2 / Gui_InvGuiScale;
}
// Clamp Line Width
float range[2];
glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, range);
if (range[1] < line_width) {
line_width = range[1];
} else if (range[0] > line_width) {
line_width = range[0];
}
// Set Line Width
glLineWidth(line_width);
}
#endif
// Fix Furnace Visual Bug
static int FurnaceTileEntity_getLitProgress_injection(FurnaceTileEntity *furnace, int max) {
// Call Original Method
int ret = FurnaceTileEntity_getLitProgress(furnace, max);
// Fix Bug
if (ret > max) {
ret = max;
}
// Return
return ret;
}
// Fix used items transferring durability
static int selected_slot = -1;
static void Player_startUsingItem_injection(Player *self, ItemInstance *item_instance, int time) {
selected_slot = self->inventory->selectedSlot;
Player_startUsingItem(self, item_instance, time);
}
static void Player_stopUsingItem_injection(Player *self) {
if (selected_slot != self->inventory->selectedSlot) {
self->itemBeingUsed.id = 0;
}
Player_stopUsingItem(self);
}
// Java Light Ramp
static void Dimension_updateLightRamp_injection(Dimension *self) {
// https://github.com/ReMinecraftPE/mcpe/blob/d7a8b6baecf8b3b050538abdbc976f690312aa2d/source/world/level/Dimension.cpp#L92-L105
for (int i = 0; i <= 15; i++) {
float f1 = 1.0f - (((float) i) / 15.0f);
self->light_ramp[i] = ((1.0f - f1) / (f1 * 3.0f + 1.0f)) * (1.0f - 0.1f) + 0.1f;
// Default Light Ramp:
// float fVar4 = 1.0 - ((float) i * 0.0625);
// self->light_ramp[i] = ((1.0 - fVar4) / (fVar4 * 3.0 + 1.0)) * 0.95 + 0.15;
}
}
// Init
static void nop() {
}
void init_misc() {
// Remove Invalid Item Background (A Red Background That Appears For Items That Are Not Included In The gui_blocks Atlas)
if (feature_has("Remove Invalid Item Background", server_disabled)) {
unsigned char invalid_item_background_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
patch((void *) 0x63c98, invalid_item_background_patch);
}
// Classic HUD
Gui_blit_renderHearts_original = Gui_blit;
if (feature_has("Classic HUD", server_disabled)) {
use_classic_hud = 1;
overwrite_call((void *) 0x26758, (void *) Gui_renderHearts_GuiComponent_blit_hearts_injection);
overwrite_call((void *) 0x2656c, (void *) Gui_renderHearts_GuiComponent_blit_armor_injection);
overwrite_call((void *) 0x268c4, (void *) Gui_renderBubbles_GuiComponent_blit_injection);
overwrite_call((void *) 0x266f8, (void *) Gui_renderHearts_GuiComponent_blit_hearts_injection);
overwrite_call((void *) 0x267c8, (void *) Gui_renderHearts_GuiComponent_blit_hearts_injection);
Gui_blit_renderHearts_original = Gui_renderHearts_GuiComponent_blit_hearts_injection;
}
// Food overlay
if (feature_has("Food Overlay", server_disabled)) {
overwrite_calls((void *) Gui_renderHearts, Gui_renderHearts_injection);
overwrite_call((void *) 0x266f8, (void *) Gui_renderHearts_GuiComponent_blit_overlay_empty_injection);
overwrite_call((void *) 0x267c8, (void *) Gui_renderHearts_GuiComponent_blit_overlay_hearts_injection);
}
// Render Selected Item Text + Hide Chat Messages
hide_chat_messages = feature_has("Hide Chat Messages", server_disabled);
render_selected_item_text = feature_has("Render Selected Item Text", server_disabled);
overwrite_calls((void *) Gui_renderChatMessages, (void *) Gui_renderChatMessages_injection);
overwrite_calls((void *) Gui_tick, (void *) Gui_tick_injection);
overwrite_calls((void *) Inventory_selectSlot, (void *) Inventory_selectSlot_injection);
// Translucent Toolbar
if (feature_has("Translucent Toolbar", server_disabled)) {
overwrite_calls((void *) Gui_renderToolBar, (void *) Gui_renderToolBar_injection);
overwrite_call((void *) 0x26c5c, (void *) Gui_renderToolBar_glColor4f_injection);
}
// Fix Screen Rendering When GUI is Hidden
overwrite_calls((void *) Screen_render_non_virtual, (void *) Screen_render_injection);
// Sanitize Username
patch_address(LoginPacket_read_vtable_addr, (void *) LoginPacket_read_injection);
// Fix RakNet::RakString Security Bug
overwrite_calls((void *) RakNet_RakString_constructor, (void *) RakNet_RakString_injection);
// Print Error Message If RakNet Startup Fails
overwrite_call((void *) 0x73778, (void *) RakNetInstance_host_RakNet_RakPeer_Startup_injection);
// Fix Bug Where RakNetInstance Starts Pinging Potential Servers Before The "Join Game" Screen Is Opened
overwrite_calls((void *) RakNetInstance_constructor, (void *) RakNetInstance_injection);
// Close Current Screen On Death To Prevent Bugs
if (feature_has("Close Current Screen On Death", server_disabled)) {
patch_address(LocalPlayer_die_vtable_addr, (void *) LocalPlayer_die_injection);
}
// Fix Furnace Not Checking Item Auxiliary When Inserting New Item
if (feature_has("Fix Furnace Not Checking Item Auxiliary", server_disabled)) {
overwrite_calls((void *) FurnaceScreen_handleAddItem, (void *) FurnaceScreen_handleAddItem_injection);
}
#ifdef MCPI_HEADLESS_MODE
// Don't Render Game In Headless Mode
overwrite_calls((void *) GameRenderer_render, (void *) nop);
overwrite_calls((void *) NinecraftApp_initGLStates, (void *) nop);
overwrite_calls((void *) Gui_onConfigChanged, (void *) nop);
overwrite_calls((void *) LevelRenderer_generateSky, (void *) nop);
#else
// Improved Cursor Rendering
if (feature_has("Improved Cursor Rendering", server_disabled)) {
// Disable Normal Cursor Rendering
unsigned char disable_cursor_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
patch((void *) 0x4a6c0, disable_cursor_patch);
// Add Custom Cursor Rendering
overwrite_calls((void *) GameRenderer_render, (void *) GameRenderer_render_injection);
}
#endif
// Disable V-Sync
if (feature_has("Disable V-Sync", server_enabled)) {
media_disable_vsync();
}
// Force EGL
if (feature_has("Force EGL", server_disabled)) {
media_force_egl();
}
// Remove Forced GUI Lag
if (feature_has("Remove Forced GUI Lag (Can Break Joining Servers)", server_enabled)) {
overwrite_calls((void *) Common_sleepMs, (void *) nop);
}
#ifndef MCPI_HEADLESS_MODE
// Properly Generate Buffers
overwrite((void *) Common_anGenBuffers, (void *) anGenBuffers_injection);
#endif
// Fix Graphics Bug When Switching To First-Person While Sneaking
patch_address(PlayerRenderer_render_vtable_addr, (void *) HumanoidMobRenderer_render_injection);
// Disable Speed Bridging
if (feature_has("Disable Speed Bridging", server_disabled)) {
unsigned char disable_speed_bridging_patch[4] = {0x03, 0x00, 0x53, 0xe1}; // "cmp r3, r3"
patch((void *) 0x494b4, disable_speed_bridging_patch);
}
// Disable Creative Mode Mining Delay
if (feature_has("Disable Creative Mode Mining Delay", server_disabled)) {
unsigned char nop_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
patch((void *) 0x19fa0, nop_patch);
}
// Change Grass Color
if (feature_has("Add Biome Colors To Grass", server_disabled)) {
patch_address((void *) GrassTile_getColor_vtable_addr, (void *) GrassTile_getColor_injection);
patch_address((void *) TallGrass_getColor_vtable_addr, (void *) TallGrass_getColor_injection);
}
// Generate Caves
if (feature_has("Generate Caves", server_auto)) {
overwrite_calls((void *) RandomLevelSource_buildSurface, (void *) RandomLevelSource_buildSurface_injection);
}
// Disable Block Tinting
if (feature_has("Disable Block Tinting", server_disabled)) {
patch_address((void *) GrassTile_getColor_vtable_addr, (void *) Tile_getColor_injection);
patch_address((void *) TallGrass_getColor_vtable_addr, (void *) Tile_getColor_injection);
patch_address((void *) StemTile_getColor_vtable_addr, (void *) Tile_getColor_injection);
patch_address((void *) LeafTile_getColor_vtable_addr, (void *) Tile_getColor_injection);
overwrite((void *) LiquidTile_getColor_non_virtual, (void *) Tile_getColor_injection);
}
// Custom GUI Scale
const char *gui_scale_str = getenv("MCPI_GUI_SCALE");
if (gui_scale_str != NULL) {
unsigned char nop_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
patch((void *) 0x173e8, nop_patch);
patch((void *) 0x173f0, nop_patch);
float gui_scale = strtof(gui_scale_str, NULL);
uint32_t gui_scale_raw;
memcpy(&gui_scale_raw, &gui_scale, sizeof (gui_scale_raw));
patch_address((void *) 0x17520, (void *) gui_scale_raw);
}
// Disable Hostile AI In Creative Mode
if (feature_has("Disable Hostile AI In Creative Mode", server_enabled)) {
overwrite_call((void *) 0x83b8c, (void *) PathfinderMob_findAttackTarget_injection);
}
// 3D Chests
if (feature_has("3D Chest Model", server_disabled)) {
overwrite_call((void *) 0x5e830, (void *) Tile_getRenderShape_injection);
overwrite_calls((void *) ChestTileEntity_constructor, (void *) ChestTileEntity_injection);
overwrite_call((void *) 0x6655c, (void *) ModelPart_render_injection);
overwrite_call((void *) 0x66568, (void *) ModelPart_render_injection);
overwrite_call((void *) 0x66574, (void *) ModelPart_render_injection);
overwrite_calls((void *) Tesselator_vertexUV, (void *) Tesselator_vertexUV_injection);
unsigned char chest_model_patch[4] = {0x13, 0x20, 0xa0, 0xe3}; // "mov r2, #0x13"
patch((void *) 0x66fc8, chest_model_patch);
unsigned char chest_color_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
patch((void *) 0x66404, chest_color_patch);
// Animation
overwrite_calls((void *) ContainerMenu_constructor, (void *) ContainerMenu_injection);
overwrite_calls((void *) ContainerMenu_destructor_complete_non_virtual, (void *) ContainerMenu_destructor_injection);
}
patch_address((void *) 0x115b48, (void *) ChestTileEntity_shouldSave_injection);
#ifndef MCPI_HEADLESS_MODE
// Replace Block Highlight With Outline
if (feature_has("Replace Block Highlight With Outline", server_disabled)) {
overwrite((void *) LevelRenderer_renderHitSelect, (void *) LevelRenderer_renderHitOutline);
unsigned char fix_outline_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
patch((void *) 0x4d830, fix_outline_patch);
overwrite_call((void *) 0x4d764, (void *) glColor4f_injection);
}
#endif
// Fix Furnace Visual Bug
overwrite_calls((void *) FurnaceTileEntity_getLitProgress, (void *) FurnaceTileEntity_getLitProgress_injection);
// Send the full level, not only changed chunks
if (feature_has("Send Full Level When Hosting Game", server_enabled)) {
unsigned char nop_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
patch((void *) 0x717c4, nop_patch);
unsigned char mov_r3_ff[4] = {0xff, 0x30, 0xa0, 0xe3}; // "mov r3, #0xff"
patch((void *) 0x7178c, mov_r3_ff);
}
// Java Light Ramp
if (feature_has("Use Java Beta 1.3 Light Ramp", server_disabled)) {
overwrite((void *) Dimension_updateLightRamp_non_virtual, (void *) Dimension_updateLightRamp_injection);
}
// Fix used items transferring durability
overwrite_calls((void *) Player_startUsingItem, (void *) Player_startUsingItem_injection);
overwrite_calls((void *) Player_stopUsingItem, (void *) Player_stopUsingItem_injection);
// Fix invalid ItemInHandRenderer texture cache
if (feature_has("Disable Buggy Held Item Caching", server_disabled)) {
// This works by forcing MCPI to always use the branch that enables using the
// cache, but then patches that as well to do the opposite
uchar ensure_equal_patch[] = {0x07, 0x00, 0x57, 0xe1}; // "cmp r7, r7"
patch((void *) 0x4b938, ensure_equal_patch);
uchar set_true_patch[] = {0x01, 0x30, 0xa0, 0x03}; // "moveq r3, #0x1"
patch((void *) 0x4b93c, set_true_patch);
}
// Init C++ And Logging
_init_misc_cpp();
_init_misc_logging();
_init_misc_api();
}