96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
#include <libreborn/libreborn.h>
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#include <symbols/minecraft.h>
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#include "input-internal.h"
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#include <mods/input/input.h>
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#include <mods/feature/feature.h>
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#include <mods/creative/creative.h>
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// Enable Miscellaneous Input Fixes
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static int enable_misc = 0;
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// Store Back Button Presses
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static int back_button_presses = 0;
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int input_back() {
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if (enable_misc) {
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back_button_presses++;
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return 1; // Handled
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} else {
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return 0; // Not Handled
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}
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}
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// Handle Back Button Presses
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static void _handle_back(unsigned char *minecraft) {
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unsigned char *minecraft_vtable = *(unsigned char **) minecraft;
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Minecraft_handleBack_t Minecraft_handleBack = *(Minecraft_handleBack_t *) (minecraft_vtable + Minecraft_handleBack_vtable_offset);
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for (int i = 0; i < back_button_presses; i++) {
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(*Minecraft_handleBack)(minecraft, 0);
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}
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back_button_presses = 0;
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}
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// Fix OptionsScreen Ignoring The Back Button
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static int32_t OptionsScreen_handleBackEvent_injection(unsigned char *screen, bool do_nothing) {
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if (!do_nothing) {
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unsigned char *minecraft = *(unsigned char **) (screen + Screen_minecraft_property_offset);
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(*Minecraft_setScreen)(minecraft, NULL);
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}
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return 1;
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}
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// Set Mouse Grab State
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static int mouse_grab_state = 0;
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void input_set_mouse_grab_state(int state) {
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mouse_grab_state = state;
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}
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// Grab/Un-Grab Mouse
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static void _handle_mouse_grab(unsigned char *minecraft) {
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if (mouse_grab_state == -1) {
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// Grab
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(*Minecraft_grabMouse)(minecraft);
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} else if (mouse_grab_state == 1) {
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// Un-Grab
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(*Minecraft_releaseMouse)(minecraft);
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}
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mouse_grab_state = 0;
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}
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#include <SDL/SDL.h>
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// Block UI Interaction When Mouse Is Locked
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static bool Gui_tickItemDrop_Minecraft_isCreativeMode_call_injection(unsigned char *minecraft) {
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if (!enable_misc || SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_OFF) {
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// Call Original Method
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return creative_is_restricted() && (*Minecraft_isCreativeMode)(minecraft);
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} else {
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// Disable Item Drop Ticking
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return 1;
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}
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}
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// Block UI Interaction When Mouse Is Locked
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static void Gui_handleClick_injection(unsigned char *gui, int32_t param_2, int32_t param_3, int32_t param_4) {
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if (SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_OFF) {
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// Call Original Method
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(*Gui_handleClick)(gui, param_2, param_3, param_4);
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}
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}
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// Init
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void _init_misc() {
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enable_misc = feature_has("Miscellaneous Input Fixes", server_disabled);
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if (enable_misc) {
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// Fix OptionsScreen Ignoring The Back Button
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patch_address(OptionsScreen_handleBackEvent_vtable_addr, (void *) OptionsScreen_handleBackEvent_injection);
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// Disable Opening Inventory Using The Cursor When Cursor Is Hidden
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overwrite_calls((void *) Gui_handleClick, (void *) Gui_handleClick_injection);
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}
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// Disable Item Dropping Using The Cursor When Cursor Is Hidden
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overwrite_call((void *) 0x27800, (void *) Gui_tickItemDrop_Minecraft_isCreativeMode_call_injection);
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input_run_on_tick(_handle_back);
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input_run_on_tick(_handle_mouse_grab);
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}
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