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+#ifndef MAPPABLE_H_0B0316FB
+#define MAPPABLE_H_0B0316FB
+
+#include <map>
+#include <string>
+#include <vector>
+#include <list>
+#include "component.h"
+#include "renderer/texture.h"
+#include "components/ponderable.h"
+#include "entity_manager.h"
+
+class MappableComponent : public Component {
+public:
+
+  using id_type = EntityManager::id_type;
+
+  /**
+   * Helper type that stores information about map adjacency.
+   */
+  class Adjacent {
+  public:
+
+    enum class Type {
+      wall,
+      wrap,
+      warp,
+      reverse
+    };
+
+    Adjacent(
+      Type type = Type::wall,
+      size_t mapId = 0) :
+        type(type),
+        mapId(mapId)
+    {
+    }
+
+    Type type;
+    size_t mapId;
+  };
+
+  /**
+   * Helper type that stores information about collision boundaries.
+   */
+  class Boundary {
+  public:
+
+    using Type = PonderableComponent::Collision;
+
+    Boundary(
+      double axis,
+      double lower,
+      double upper,
+      Type type) :
+        axis(axis),
+        lower(lower),
+        upper(upper),
+        type(type)
+    {
+    }
+
+    double axis;
+    double lower;
+    double upper;
+    Type type;
+  };
+
+  /**
+   * Helper types for efficient storage and lookup of collision boundaries.
+   */
+  using asc_boundaries_type =
+    std::multimap<
+      double,
+      const Boundary,
+      std::less<double>>;
+
+  using desc_boundaries_type =
+    std::multimap<
+      double,
+      const Boundary,
+      std::greater<double>>;
+
+  /**
+   * Constructor for initializing the tileset and font attributes, as they are
+   * not default constructible.
+   */
+  MappableComponent(
+    Texture tileset,
+    Texture font) :
+      tileset(std::move(tileset)),
+      font(std::move(font))
+  {
+  }
+
+  /**
+   * The ID of the map in the world definition that this entity represents.
+   *
+   * @managed_by RealizingSystem
+   */
+  size_t mapId;
+
+  /**
+   * The title of the map, which is displayed at the bottom of the screen.
+   */
+  std::string title;
+
+  /**
+   * The map data.
+   *
+   * @managed_by RealizingSystem
+   */
+  std::vector<int> tiles;
+
+  /**
+   * These objects describe the behavior of the four edges of the map.
+   *
+   * @managed_by RealizingSystem
+   */
+  Adjacent leftAdjacent;
+  Adjacent rightAdjacent;
+  Adjacent upAdjacent;
+  Adjacent downAdjacent;
+
+  /**
+   * Collision boundaries, for detecting when a ponderable entity is colliding
+   * with the environment.
+   *
+   * @managed_by MappingSystem
+   */
+  desc_boundaries_type leftBoundaries;
+  asc_boundaries_type rightBoundaries;
+  desc_boundaries_type upBoundaries;
+  asc_boundaries_type downBoundaries;
+
+  /**
+   * The list of entities representing the objects owned by the map.
+   *
+   * @managed_by RealizingSystem
+   */
+  std::list<id_type> objects;
+
+  /**
+   * The tilesets for the map and the map name.
+   *
+   * TODO: These probably do not belong here.
+   */
+  Texture tileset;
+  Texture font;
+};
+
+#endif /* end of include guard: MAPPABLE_H_0B0316FB */