minecraft-pi-reborn/mods/src/compat/compat.c

123 lines
3.6 KiB
C

#include <unistd.h>
#include <signal.h>
#include <SDL/SDL.h>
#include <libreborn/media-layer/core.h>
#include <libreborn/libreborn.h>
#include "../feature/feature.h"
#include "../input/input.h"
#include "../chat/chat.h"
#include "../init/init.h"
#include "compat.h"
// Mouse Cursor Is Always Invisible In Vanilla MCPI
// Because In Vanilla MCPI, The GPU Overlay Covered The Normal Mouse Cursor
HOOK(SDL_ShowCursor, int, (int toggle)) {
ensure_SDL_ShowCursor();
return (*real_SDL_ShowCursor)(toggle == SDL_QUERY ? SDL_QUERY : SDL_DISABLE);
}
// Intercept SDL Events
HOOK(SDL_PollEvent, int, (SDL_Event *event)) {
// In Server Mode, Exit Requests Are Handled In src/server/server.cpp
#ifndef MCPI_SERVER_MODE
// Check If Exit Is Requested
if (compat_check_exit_requested()) {
// Send SDL_QUIT
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
}
#endif // #ifndef MCPI_SERVER_MODE
// Poll Events
ensure_SDL_PollEvent();
int ret = (*real_SDL_PollEvent)(event);
// Handle Events
if (ret == 1 && event != NULL) {
int handled = 0;
switch (event->type) {
case SDL_KEYDOWN: {
// Handle Key Presses
if (event->key.keysym.sym == SDLK_F11) {
media_toggle_fullscreen();
handled = 1;
} else if (event->key.keysym.sym == SDLK_F2) {
media_take_screenshot();
handled = 1;
} else if (event->key.keysym.sym == SDLK_F1) {
input_hide_gui();
handled = 1;
} else if (event->key.keysym.sym == SDLK_F5) {
input_third_person();
handled = 1;
} else if (event->key.keysym.sym == SDLK_t) {
// Only When In-Game With No Other Chat Windows Open
if (SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_ON && chat_get_counter() == 0) {
// Release Mouse
input_set_mouse_grab_state(1);
// Open Chat
chat_open();
}
// Mark Handled
handled = 1;
}
break;
}
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP: {
// Track Right-Click State
if (event->button.button == SDL_BUTTON_RIGHT) {
input_set_is_right_click(event->button.state != SDL_RELEASED);
} else if (event->button.button == SDL_BUTTON_LEFT) {
input_set_is_left_click(event->button.state != SDL_RELEASED);
}
break;
}
case SDL_USEREVENT: {
// SDL_UserEvent Is Never Used In MCPI, So It Is Repurposed For Character Events
input_key_press((char) event->user.code);
handled = 1;
break;
}
}
if (handled) {
// Event Was Handled
return SDL_PollEvent(event);
}
}
return ret;
}
// Exit Handler
static void exit_handler(__attribute__((unused)) int data) {
// Request Exit
compat_request_exit();
}
void init_compat() {
// Install Exit Handler
signal(SIGINT, exit_handler);
signal(SIGTERM, exit_handler);
}
// Store Exit Requests
static int exit_requested = 0;
int compat_check_exit_requested() {
if (exit_requested) {
exit_requested = 0;
return 1;
} else {
return 0;
}
}
void compat_request_exit() {
// Request
exit_requested = 1;
}