v1.4.4

source/game/StarFallingBlocksAgent.hpp

@@ -0,0 +1,50 @@
+#ifndef STAR_FALLING_BLOCKS_AGENT_HPP
+#define STAR_FALLING_BLOCKS_AGENT_HPP
+
+#include "StarVector.hpp"
+#include "StarSet.hpp"
+#include "StarMap.hpp"
+#include "StarRandom.hpp"
+#include "StarGameTypes.hpp"
+#include "StarWorldTiles.hpp"
+
+namespace Star {
+
+STAR_CLASS(MaterialDatabase);
+STAR_CLASS(FallingBlocksFacade);
+STAR_CLASS(FallingBlocksAgent);
+
+enum class FallingBlockType {
+  Immovable,
+  Falling,
+  Cascading,
+  Open
+};
+
+class FallingBlocksFacade {
+public:
+  virtual ~FallingBlocksFacade() = default;
+
+  virtual FallingBlockType blockType(Vec2I const& pos) = 0;
+  virtual void moveBlock(Vec2I const& from, Vec2I const& to) = 0;
+};
+
+class FallingBlocksAgent {
+public:
+  FallingBlocksAgent(FallingBlocksFacadePtr worldFacade);
+
+  void update();
+
+  void visitLocation(Vec2I const& location);
+  void visitRegion(RectI const& region);
+
+private:
+  FallingBlocksFacadePtr m_facade;
+  float m_immediateUpwardPropagateProbability;
+  HashSet<Vec2I> m_pending;
+  RandomSource m_random;
+};
+
+}
+
+#endif