113 lines
5.4 KiB
C++
113 lines
5.4 KiB
C++
#include <libreborn/libreborn.h>
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#include <symbols/minecraft.h>
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#include <mods/feature/feature.h>
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#include <mods/init/init.h>
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#include <mods/compat/compat.h>
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// Improved Title Screen Background
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static void StartMenuScreen_render_Screen_renderBackground_injection(unsigned char *screen) {
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// Draw
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unsigned char *minecraft = *(unsigned char **) (screen + Screen_minecraft_property_offset);
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unsigned char *textures = *(unsigned char **) (minecraft + Minecraft_textures_property_offset);
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(*Textures_loadAndBindTexture)(textures, "gui/titleBG.png");
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(*GuiComponent_blit)(screen, 0, 0, 0, 0, *(int32_t *) (screen + Screen_width_property_offset), *(int32_t *) (screen + Screen_height_property_offset), 0x100, 0x100);
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}
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// Add Buttons Back To Classic Start Screen
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static void StartMenuScreen_init_injection(unsigned char *screen) {
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// Call Original Method
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(*StartMenuScreen_init)(screen);
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// Add Button
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std::vector<unsigned char *> *rendered_buttons = (std::vector<unsigned char *> *) (screen + Screen_rendered_buttons_property_offset);
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std::vector<unsigned char *> *selectable_buttons = (std::vector<unsigned char *> *) (screen + Screen_selectable_buttons_property_offset);
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unsigned char *options_button = screen + StartMenuScreen_options_button_property_offset; // Repurpose Unused "Options" Button As Quit Button
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rendered_buttons->push_back(options_button);
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selectable_buttons->push_back(options_button);
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}
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// Add Functionality To Quit Button
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static void StartMenuScreen_buttonClicked_injection(unsigned char *screen, unsigned char *button) {
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unsigned char *quit_button = screen + StartMenuScreen_options_button_property_offset;
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if (button == quit_button) {
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// Quit
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compat_request_exit();
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} else {
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// Call Original Method
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(*StartMenuScreen_buttonClicked)(screen, button);
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}
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}
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// Adjust Touch Title Screen Button Positions
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static void Touch_StartMenuScreen_setupPositions_injection(unsigned char *screen) {
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// Call Original Method
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(*Touch_StartMenuScreen_setupPositions)(screen);
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// Get Width
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int32_t width = *(int32_t *) (screen + Screen_width_property_offset);
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// Move Buttons
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unsigned char *join_game_button = screen + Touch_StartMenuScreen_join_game_button_property_offset;
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int32_t join_game_button_width = *(int32_t *) (join_game_button + Button_width_property_offset);
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unsigned char *start_game_button = screen + Touch_StartMenuScreen_start_game_button_property_offset;
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int32_t start_game_button_width = *(int32_t *) (start_game_button + Button_width_property_offset);
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int32_t padding = (width - join_game_button_width - start_game_button_width) / 3;
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*(int32_t *) (join_game_button + Button_x_property_offset) = padding;
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*(int32_t *) (start_game_button + Button_x_property_offset) = (padding * 2) + join_game_button_width;
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}
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// Init
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void init_title_screen() {
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// Improved Title Screen Background
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if (feature_has("Add Title Screen Background", server_disabled)) {
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// Switch Background
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overwrite_call((void *) 0x4a40c, (void *) StartMenuScreen_render_Screen_renderBackground_injection);
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overwrite_call((void *) 0x52360, (void *) StartMenuScreen_render_Screen_renderBackground_injection);
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// Text Color
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patch_address((void *) 0x4a764, (void *) 0xffffffff);
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patch_address((void *) 0x525f4, (void *) 0xffffffff);
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}
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// Improved Classic Title Screen
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if (feature_has("Improved Classic Title Screen", server_disabled)) {
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// Add Options Button Back To Classic Start Screen
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patch_address(StartMenuScreen_init_vtable_addr, (void *) StartMenuScreen_init_injection);
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// Fix Classic UI Button Size
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unsigned char classic_button_height_patch[4] = {0x18, 0xc0, 0xa0, 0xe3}; // "mov r12, #0x18"
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patch((void *) 0x4ac18, classic_button_height_patch);
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unsigned char classic_button_width_patch[4] = {0xa0, 0x70, 0xa0, 0xe3}; // "mov r7, #0xa0"
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patch((void *) 0x4ac14, classic_button_width_patch);
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// Fix Classic UI Buttons Spacing
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{
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// Join Button
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unsigned char classic_join_button_spacing_patch[4] = {0x12, 0x00, 0x80, 0xe2}; // "add r0, r0, #0x12"
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patch((void *) 0x4a380, classic_join_button_spacing_patch);
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// Start Button
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unsigned char classic_start_button_spacing_patch[4] = {0x08, 0x70, 0x40, 0xe2}; // "sub r7, r0, #0x08"
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patch((void *) 0x4a378, classic_start_button_spacing_patch);
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// Options Button
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unsigned char classic_options_button_spacing_patch[4] = {0x2c, 0x20, 0x80, 0xe2}; // "add r3, r3, #0x2c"
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patch((void *) 0x4a370, classic_options_button_spacing_patch);
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}
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// Rename "Options" Button To "Quit"
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patch_address((void *) classic_options_button_text, (void *) "Quit");
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// Add Functionality To Quit Button
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patch_address(StartMenuScreen_buttonClicked_vtable_addr, (void *) StartMenuScreen_buttonClicked_injection);
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}
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// Improved Touch Title Screen
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if (feature_has("Improved Touch Title Screen", server_disabled)) {
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// Remove Redundant Options Button
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unsigned char nop_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
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patch((void *) 0x53470, nop_patch);
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// Adjust Touch Title Screen Button Positions
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patch_address(Touch_StartMenuScreen_setupPositions_vtable_addr, (void *) Touch_StartMenuScreen_setupPositions_injection);
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}
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}
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