Added move finding/selection

game.cpp

@@ -0,0 +1,70 @@
+#include "game.hpp"
+
+#include <chrono>
+
+uint64_t time_milli() {
+    using namespace std::chrono;
+    return duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count();
+}
+
+Game::Game(SDL_Window* window, SDL_Surface* surface)
+{
+    this->window = window;
+    this->surface = surface;
+    running = false;
+}
+
+Game::Game(SDL_Window* window, SDL_Surface* surface, std::string board_fen)
+{
+    this->window = window;
+    this->surface = surface;
+    board = Board(board_fen);
+    running = false;
+}
+
+void Game::run()
+{
+    uint64_t last_update_time = time_milli(), delta_time;
+    uint64_t time_quantum = 1000/60;
+    running = true;
+    while(running)
+    {
+        delta_time = time_milli()-last_update_time;
+        while(delta_time > time_quantum && running)
+        {
+            tick();
+
+            delta_time -= time_quantum;
+            last_update_time += time_quantum;
+        }
+        draw();
+    }
+}
+
+void Game::tick()
+{
+    SDL_Event e;
+    while(SDL_PollEvent(&e) != 0)
+    {
+        if (e.type == SDL_QUIT || (e.type == SDL_KEYUP && e.key.keysym.sym == SDLK_q))
+        {
+            running = false;
+        }
+
+        if (e.type == SDL_MOUSEBUTTONDOWN)
+        {
+            int x,y;
+            SDL_GetMouseState(&x, &y);
+            x/=SPRITE_SIZE;
+            y/=SPRITE_SIZE;
+            board.set_selected_space(x,y);
+        }
+    }
+}
+
+void Game::draw()
+{
+    board.draw_board(surface);
+
+    SDL_UpdateWindowSurface(window);
+}