Very basic ECS

1 files changed, 60 insertions, 0 deletions

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+#include "renderer.h"
+
+#include <random>
+#include "simulation.h"
+#include "level.h"
+
+int main(int, char**)
+{
+  std::random_device randomEngine;
+  std::mt19937 rng(randomEngine());
+
+  Renderer renderer;
+  Level level;
+  Simulation sim(level);
+
+  Simulation::id_type player = sim.emplaceEntity();
+  Entity& entity = sim.getEntity(player);
+  entity.gridPos.x() = 1;
+  entity.gridPos.y() = 5;
+  entity.size = TILE_SIZE;
+  entity.speed = 3.0;
+  entity.player = true;
+
+  bool quit = false;
+
+  SDL_Event e;
+  size_t lastTime = SDL_GetTicks();
+
+  while (!quit)
+  {
+    size_t currentTime = SDL_GetTicks();
+    size_t frameTime = currentTime - lastTime;
+    lastTime = currentTime;
+
+    while (SDL_PollEvent(&e))
+    {
+      if (e.type == SDL_QUIT)
+      {
+        quit = true;
+      } else if (e.type == SDL_KEYDOWN)
+      {
+        switch (e.key.keysym.sym)
+        {
+          case SDLK_ESCAPE:
+          {
+            quit = true;
+
+            break;
+          }
+        }
+      }
+    }
+
+    const Uint8* state = SDL_GetKeyboardState(NULL);
+
+    sim.tick(frameTime / 1000.0, state);
+
+    renderer.render(sim);
+  }
+}