134 lines
4.0 KiB
C++
134 lines
4.0 KiB
C++
#include <iostream>
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#include <SDL3/SDL.h>
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#include <SDL3_image/SDL_image.h>
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#include <SDL3_mixer/SDL_mixer.h>
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#include <SDL3_ttf/SDL_ttf.h>
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#include <glm/glm.hpp>
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#include <nlohmann/json.hpp>
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#include <spdlog/spdlog.h>
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int main(int, char**) {
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spdlog::info("你好，世界!");
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nlohmann::json json_data = {{"a",10}};
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auto num = json_data["a"].get<int>();
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spdlog::warn("json: {}", num);
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glm::vec2 a = glm::vec2(1.0f, 2.0f);
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glm::vec2 b = glm::vec2(3.0f, 4.0f);
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auto c = a * b;
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auto d = glm::distance(a, b);
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SDL_Log("d = (%f)", d);
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SDL_Log("c = (%f, %f)", c.x, c.y);
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std::cout << "Hello, World!" << std::endl;
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// SDL初始化
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if (!SDL_Init(SDL_INIT_AUDIO | SDL_INIT_VIDEO)) {
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std::cerr << "SDL_Init Error: " << SDL_GetError() << std::endl;
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return 1;
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}
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// 创建窗口
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SDL_Window *window = SDL_CreateWindow("Hello World!", 800, 600, 0);
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// 创建渲染器
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SDL_Renderer *renderer = SDL_CreateRenderer(window, NULL);
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// SDL3_Image不需要手动初始化
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// 加载图片
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SDL_Texture *texture = IMG_LoadTexture(renderer, "assets/textures/Props/big-crate.png");
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// SDL_Mixer初始化
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if (!Mix_OpenAudio(0, NULL)) {
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std::cerr << "Mix_OpenAudio Error: " << SDL_GetError() << std::endl;
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return 1;
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}
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// 读取音乐
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Mix_Music *music = Mix_LoadMUS("assets/audio/hurry_up_and_run.ogg");
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// 播放音乐
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Mix_PlayMusic(music, -1);
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// SDL_TTF初始化
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if (!TTF_Init()) {
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std::cerr << "TTF_Init Error: " << SDL_GetError() << std::endl;
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return 1;
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}
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// 加载字体
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TTF_Font *font = TTF_OpenFont("assets/fonts/VonwaonBitmap-16px.ttf", 24);
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// 创建文本纹理
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SDL_Color color = {255, 255, 255, 255};
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SDL_Surface *surface = TTF_RenderText_Solid(font, "Hello, SDL! 中文也可以", 0, color);
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SDL_Texture *textTexture = SDL_CreateTextureFromSurface(renderer, surface);
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// SDL3 新的绘制文本方法
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TTF_TextEngine *textEngine = TTF_CreateRendererTextEngine(renderer);
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TTF_Text *text = TTF_CreateText(textEngine, font, "SDL3 新的文本渲染方式", 0);
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TTF_SetTextColor(text, 255, 0, 0, 255);
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TTF_SetTextWrapWidth(text, 50);
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// Do something with the window and renderer here...
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// 渲染循环
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glm::vec2 mousePos = glm::vec2(0.0f, 0.0f);
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while (true) {
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SDL_Event event;
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if (SDL_PollEvent(&event)) {
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if (event.type == SDL_EVENT_QUIT) {
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break;
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}
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}
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auto state = SDL_GetMouseState(&mousePos.x, &mousePos.y);
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// SDL_Log("Mouse Pos: (%f, %f)", mousePos.x, mousePos.y);
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if (state & SDL_BUTTON_LMASK) {
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SDL_Log("Left Button Down");
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}
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if (state & SDL_BUTTON_RMASK) {
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SDL_Log("Right Button Down");
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}
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// 清屏
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SDL_RenderClear(renderer);
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// 画一个长方形
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SDL_FRect rect = {100, 100, 200, 200};
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SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
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SDL_RenderFillRect(renderer, &rect);
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// 画图片
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SDL_FRect dstrect = {200, 200, 200, 200};
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SDL_RenderTexture(renderer, texture, NULL, &dstrect);
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// 画文本
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SDL_FRect textRect = {300, 300, static_cast<float>(surface->w), static_cast<float>(surface->h)};
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SDL_RenderTexture(renderer, textTexture, NULL, &textRect);
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SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
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// 新的画文本方法：
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TTF_DrawRendererText(text, 400, 400);
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// 更新屏幕
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SDL_RenderPresent(renderer);
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}
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// 清理图片资源
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SDL_DestroyTexture(texture);
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// 清理音乐资源
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Mix_FreeMusic(music);
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Mix_CloseAudio();
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Mix_Quit();
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// 清理字体资源
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SDL_DestroySurface(surface);
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SDL_DestroyTexture(textTexture);
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TTF_CloseFont(font);
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TTF_Quit();
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// 清理并退出
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SDL_DestroyRenderer(renderer);
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SDL_DestroyWindow(window);
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SDL_Quit();
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return 0;
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} |