64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
#include <vector>
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#include <libreborn/libreborn.h>
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#include "../feature/feature.h"
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#include "input.h"
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#include <libreborn/minecraft.h>
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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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#define BACKSPACE_KEY 8
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static int is_valid_key(char key) {
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return (key >= 32 && key <= 126) || key == BACKSPACE_KEY;
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}
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// Store Text Input
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std::vector<char> input;
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void input_key_press(char key) {
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if (is_valid_key(key)) {
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input.push_back(key);
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}
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}
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void input_clear_input() {
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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 (*(char *)(screen + 4) == '\0') {
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uint32_t vtable = *((uint32_t *) screen);
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for (char key : input) {
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if (key == BACKSPACE_KEY) {
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// Handle Backspace
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(*(Screen_keyPressed_t *) (vtable + Screen_keyPressed_vtable_offset))(screen, BACKSPACE_KEY);
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} else {
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// Handle Nrmal 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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}
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input_clear_input();
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}
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void init_input_cpp() {
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if (feature_has("Fix Sign Placement")) {
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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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}
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} |