Added game map drawing.

src/Main.cpp

@@ -0,0 +1,104 @@
+#include <string>
+#include "Main.hpp"
+
+void logSDLError(std::ostream &os, const std::string &msg) {
+    os << msg << " error:" << SDL_GetError() << std::endl;
+}
+
+SDL_Window *init_window() {
+    SDL_Window *window = SDL_CreateWindow("Hello World!", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
+                                          SCREEN_WIDTH,
+                                          SCREEN_HEIGHT, SDL_WINDOW_OPENGL);
+    if (window == NULL) {
+        logSDLError(std::cout, "SDL_CreateWindow");
+        SDL_DestroyWindow(window);
+        SDL_Quit();
+    }
+    return window;
+}
+
+SDL_Renderer *init_renderer(SDL_Window *window) {
+    SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
+    if (renderer == NULL) {
+        logSDLError(std::cout, "SDL_CreateRenderer");
+
+    }
+    return renderer;
+}
+
+SDL_Surface *init_surface(int width, int height) {
+
+    //SDL_Surface *surface = SDL_CreateRGBSurface(0, width, height, 32, rmask, gmask, bmask, amask);
+    SDL_Surface *surface = SDL_CreateRGBSurface(0, width, height, 32, 0, 0, 0, 0);
+    if (surface == NULL) {
+        logSDLError(std::cout, "SDL_CreateSurface");
+    }
+    return surface;
+}
+
+SDL_Texture *init_texture(SDL_Renderer *renderer, SDL_Surface *surface) {
+    SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surface);
+    if (texture == NULL) {
+        logSDLError(std::cout, "SDL_CreateTexture");
+    }
+    return texture;
+}
+
+int main(int, char **) {
+    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
+        logSDLError(std::cout, "SDL_init");
+        return 1;
+    }
+    SDL_Window *window = init_window();
+    if (!window) {
+        SDL_DestroyWindow(window);
+        SDL_Quit();
+        return 1;
+    }
+    SDL_Renderer *renderer = init_renderer(window);
+    if (!renderer) {
+        SDL_DestroyRenderer(renderer);
+        SDL_DestroyWindow(window);
+        SDL_Quit();
+        return 1;
+    }
+    SDL_Surface *surface = init_surface(SCREEN_WIDTH, SCREEN_HEIGHT);
+    if (!surface) {
+        SDL_FreeSurface(surface);
+        SDL_DestroyRenderer(renderer);
+        SDL_DestroyWindow(window);
+        SDL_Quit();
+        return 1;
+    }
+    SDL_Texture *texture = init_texture(renderer, surface);
+    if (!texture) {
+        SDL_DestroyTexture(texture);
+        SDL_FreeSurface(surface);
+        SDL_DestroyRenderer(renderer);
+        SDL_DestroyWindow(window);
+        SDL_Quit();
+        return 1;
+    }
+    const SDL_Point center = {SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2};
+    const Layout standard = Layout(pointy_orientation, 20.0, center);
+    const SDL_Color color = {0, 255, 255, 255};
+    HexagonGrid *grid = new HexagonGrid(4);
+    bool quit = false;
+    while (!quit) {
+        SDL_Event event;
+        while (SDL_PollEvent(&event)) {
+            if (event.type == SDL_QUIT) {
+                quit = true;
+            } else if (event.type == SDL_MOUSEBUTTONDOWN) {
+                quit = true;
+            }
+        }
+        SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0x00);
+        SDL_RenderClear(renderer);
+        SDL_SetRenderDrawColor(renderer, 0xff, 0xff, 0xff, 0xff);
+        grid->render(renderer, color, &standard);
+        SDL_RenderPresent(renderer);
+    }
+    delete grid;
+    return 0;
+}