collision tile

source/game/gameplay/tile_collider.hpp

@@ -0,0 +1,55 @@
+#pragma once
+
+#include <vector>
+
+#include "utils/defines.hpp"
+
+class TileCollider {
+   public:
+    enum class Tile : int {
+        EMPTY = 0,
+        WALL = 1,
+        PASSABLE = 2,
+        SLOPE_L = 3,
+        SLOPE_R = 4
+    };
+
+    struct FloorHit {
+        float y{-1};
+        Tile type{Tile::EMPTY};
+        int tile_x{0};
+        int tile_y{0};
+    };
+
+    struct SlopeInfo {
+        bool on_slope{false};
+        Tile type{Tile::EMPTY};
+        int tile_x{0};
+        int tile_y{0};
+        float surface_y{0};
+    };
+
+    explicit TileCollider(const std::vector<int>& collision_tile_map);
+
+    // Queries básicas
+    [[nodiscard]] auto getTileAt(int tile_x, int tile_y) const -> Tile;
+    [[nodiscard]] auto isSolid(int tile_x, int tile_y) const -> bool;
+    [[nodiscard]] auto getSlopeY(int tile_x, int tile_y, float px) const -> float;
+
+    // Colisión para el Player
+    [[nodiscard]] auto checkWallLeft(float x, float y, float w, float h) const -> float;
+    [[nodiscard]] auto checkWallRight(float x, float y, float w, float h) const -> float;
+    [[nodiscard]] auto checkCeiling(float x, float y, float w) const -> float;
+    [[nodiscard]] auto checkFloor(float x, float foot_y_current, float w, float foot_y_new) const -> FloorHit;
+    [[nodiscard]] auto hasGroundBelow(float x, float foot_y, float w) const -> bool;
+    [[nodiscard]] auto checkSlopeBelow(float x, float foot_y, float w) const -> SlopeInfo;
+
+   private:
+    static constexpr int TS = ::Tile::SIZE;
+    static constexpr int MW = ::Map::WIDTH;
+    static constexpr int MH = ::Map::HEIGHT;
+
+    const std::vector<int>& tile_map_;
+
+    [[nodiscard]] static auto toTile(int px) -> int { return px / TS; }
+};