mirror of
https://github.com/thunderbrewhq/thunderbrew
synced 2025-11-04 10:16:02 +03:00
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/*
|
|
Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely.
|
|
*/
|
|
#define SDL_MAIN_USE_CALLBACKS 1 /* use the callbacks instead of main() */
|
|
#include <SDL3/SDL.h>
|
|
#include <SDL3/SDL_main.h>
|
|
|
|
static SDL_Window *window = NULL;
|
|
static SDL_Renderer *renderer = NULL;
|
|
|
|
/* This function runs once at startup. */
|
|
SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
|
|
{
|
|
/* Create the window */
|
|
if (!SDL_CreateWindowAndRenderer("Hello World", 800, 600, SDL_WINDOW_FULLSCREEN, &window, &renderer)) {
|
|
SDL_Log("Couldn't create window and renderer: %s", SDL_GetError());
|
|
return SDL_APP_FAILURE;
|
|
}
|
|
return SDL_APP_CONTINUE;
|
|
}
|
|
|
|
/* This function runs when a new event (mouse input, keypresses, etc) occurs. */
|
|
SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event)
|
|
{
|
|
if (event->type == SDL_EVENT_KEY_DOWN ||
|
|
event->type == SDL_EVENT_QUIT) {
|
|
return SDL_APP_SUCCESS; /* end the program, reporting success to the OS. */
|
|
}
|
|
return SDL_APP_CONTINUE;
|
|
}
|
|
|
|
/* This function runs once per frame, and is the heart of the program. */
|
|
SDL_AppResult SDL_AppIterate(void *appstate)
|
|
{
|
|
const char *message = "Hello World!";
|
|
int w = 0, h = 0;
|
|
float x, y;
|
|
const float scale = 4.0f;
|
|
|
|
/* Center the message and scale it up */
|
|
SDL_GetRenderOutputSize(renderer, &w, &h);
|
|
SDL_SetRenderScale(renderer, scale, scale);
|
|
x = ((w / scale) - SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE * SDL_strlen(message)) / 2;
|
|
y = ((h / scale) - SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE) / 2;
|
|
|
|
/* Draw the message */
|
|
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
|
|
SDL_RenderClear(renderer);
|
|
SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
|
|
SDL_RenderDebugText(renderer, x, y, message);
|
|
SDL_RenderPresent(renderer);
|
|
|
|
return SDL_APP_CONTINUE;
|
|
}
|
|
|
|
/* This function runs once at shutdown. */
|
|
void SDL_AppQuit(void *appstate, SDL_AppResult result)
|
|
{
|
|
}
|
|
|