87 lines
4.1 KiB
C++
87 lines
4.1 KiB
C++
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#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;
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rendered_buttons->push_back(options_button);
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selectable_buttons->push_back(options_button);
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unsigned char *create_button = screen + StartMenuScreen_create_button_property_offset; // Repurpose Unused "Create" Button As Quit Button
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rendered_buttons->push_back(create_button);
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selectable_buttons->push_back(create_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_create_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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// Init
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void init_title_screen() {
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// Improved Title Screen Background
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if (feature_has("Improved Title Screen Background", server_disabled)) {
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// Switch Background
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overwrite_call((void *) 0x39528, (void *) StartMenuScreen_render_Screen_renderBackground_injection);
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overwrite_call((void *) 0x3dee0, (void *) StartMenuScreen_render_Screen_renderBackground_injection);
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// Text Color
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patch_address((void *) 0x397ac, (void *) 0xffffffff);
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patch_address((void *) 0x3e10c, (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, 0x30, 0xa0, 0xe3}; // "mov r3, #0x18"
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patch((void *) 0x39a9c, classic_button_height_patch);
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patch((void *) 0x39ae0, classic_button_height_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, 0x20, 0x83, 0xe2}; // "add r2, r3, #0x12"
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patch((void *) 0x39894, classic_join_button_spacing_patch);
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// Start Button
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unsigned char classic_start_button_spacing_patch[4] = {0x08, 0x20, 0x43, 0xe2}; // "sub r2, r3, #0x08"
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patch((void *) 0x3988c, classic_start_button_spacing_patch);
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// Options Button
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unsigned char classic_options_button_spacing_patch[4] = {0x2c, 0x30, 0x83, 0xe2}; // "add r3, r3, #0x2c"
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patch((void *) 0x39898, classic_options_button_spacing_patch);
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}
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// Rename "Create" Button To "Quit"
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patch_address((void *) classic_create_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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}
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