69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
#include <vector>
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#include <SDL/SDL.h>
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#include <libreborn/libreborn.h>
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#include <symbols/minecraft.h>
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#include <mods/init/init.h>
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#include <mods/feature/feature.h>
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#include <mods/input/input.h>
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#include <mods/sign/sign.h>
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// Handle Backspace
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static int32_t sdl_key_to_minecraft_key_injection(int32_t sdl_key) {
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if (sdl_key == SDLK_BACKSPACE) {
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return 8;
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} else {
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// Call Original Method
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return (*sdl_key_to_minecraft_key)(sdl_key);
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}
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}
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// Open Sign Screen
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static void LocalPlayer_openTextEdit_injection(unsigned char *local_player, unsigned char *sign) {
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if (*(int32_t *) (sign + TileEntity_id_property_offset) == 4) {
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unsigned char *minecraft = *(unsigned char **) (local_player + LocalPlayer_minecraft_property_offset);
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unsigned char *screen = (unsigned char *) ::operator new(TEXT_EDIT_SCREEN_SIZE);
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ALLOC_CHECK(screen);
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screen = (*TextEditScreen)(screen, sign);
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(*Minecraft_setScreen)(minecraft, screen);
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}
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}
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// Store Text Input
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std::vector<char> input;
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void sign_key_press(char key) {
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input.push_back(key);
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}
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static void clear_input(__attribute__((unused)) unsigned char *minecraft) {
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input.clear();
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}
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// Handle Text Input
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static void TextEditScreen_updateEvents_injection(unsigned char *screen) {
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// Call Original Method
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(*Screen_updateEvents)(screen);
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if (!*(bool *)(screen + Screen_passthrough_input_property_offset)) {
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unsigned char *vtable = *(unsigned char **) screen;
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for (char key : input) {
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// Handle Normal Key
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(*(Screen_keyboardNewChar_t *) (vtable + Screen_keyboardNewChar_vtable_offset))(screen, key);
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}
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}
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clear_input(NULL);
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}
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// Init
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void init_sign() {
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if (feature_has("Fix Sign Placement", server_disabled)) {
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// Handle Backspace
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overwrite_calls((void *) sdl_key_to_minecraft_key, (void *) sdl_key_to_minecraft_key_injection);
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// Fix Signs
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patch_address(LocalPlayer_openTextEdit_vtable_addr, (void *) LocalPlayer_openTextEdit_injection);
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patch_address(TextEditScreen_updateEvents_vtable_addr, (void *) TextEditScreen_updateEvents_injection);
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// Clear Input On Input Tick
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input_run_on_tick(clear_input);
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}
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}
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