diff --git a/server/gameserver/grid.cc b/server/gameserver/grid.cc
new file mode 100644
index 0000000..5bad192
--- /dev/null
+++ b/server/gameserver/grid.cc
@@ -0,0 +1,75 @@
+#include "precompile.h"
+
+#include "grid.h"
+
+Grid::Grid()
+{
+
+}
+
+Grid::~Grid()
+{
+
+}
+
+void Grid::Init(int width, int height, int cell_width)
+{
+    map_width_ = width;
+    map_height_ = height;
+    cell_width_ = cell_width;
+
+    cell_count_per_row_ = (map_height_ / cell_width + 1) + 2;
+    cell_count_per_col_ = (map_width_ / cell_width + 1) + 2;
+    max_grid_id_ = cell_count_per_row_ * cell_count_per_col_;
+    cells_ = new GridCell[max_grid_id_ + 1];
+}
+
+void Grid::UnInit()
+{
+    if (cells_) {
+        delete[] cells_;
+        cells_ = nullptr;
+    }
+}
+
+void Grid::Get123456789(int grid_id, std::vector<GridCell>& grid_list)
+{
+    if (grid_id <= 0 || grid_id >= max_grid_id_) {
+        return;
+    }
+    int tmp_grid_id = 0;
+    tmp_grid_id = grid_id - (cell_count_per_row_ + 1);
+    if (tmp_grid_id > 0) {
+
+    }
+}
+
+void Grid::Get123(int grid_id, std::vector<GridCell>& grid_list)
+{
+
+}
+
+void Grid::Get456(int grid_id, std::vector<GridCell>& grid_list)
+{
+
+}
+
+void Grid::Get789(int grid_id, std::vector<GridCell>& grid_list)
+{
+
+}
+
+void Grid::Get147(int grid_id, std::vector<GridCell>& grid_list)
+{
+
+}
+
+void Grid::Get258(int grid_id, std::vector<GridCell>& grid_list)
+{
+
+}
+
+void Grid::Get369(int grid_id, std::vector<GridCell>& grid_list)
+{
+
+}
diff --git a/server/gameserver/grid.h b/server/gameserver/grid.h
new file mode 100644
index 0000000..85f31d8
--- /dev/null
+++ b/server/gameserver/grid.h
@@ -0,0 +1,43 @@
+#pragma once
+
+class Human;
+
+struct GridCell
+{
+    std::set<Human*> human_list;
+};
+
+/*
+  1 2 3
+  4 5 6
+  7 8 9
+ */
+class Room;
+class Grid
+{
+ public:
+    Grid();
+    ~Grid();
+
+    void Init(int width, int height, int cell_width);
+    void UnInit();
+    void Get123456789(int grid_id, std::vector<GridCell>& grid_list);
+    void Get123(int grid_id, std::vector<GridCell>& grid_list);
+    void Get456(int grid_id, std::vector<GridCell>& grid_list);
+    void Get789(int grid_id, std::vector<GridCell>& grid_list);
+    void Get147(int grid_id, std::vector<GridCell>& grid_list);
+    void Get258(int grid_id, std::vector<GridCell>& grid_list);
+    void Get369(int grid_id, std::vector<GridCell>& grid_list);
+
+ private:
+    Room* room_ = nullptr;
+    GridCell* cells_ = nullptr;
+    int max_grid_id_ = 0;
+    int map_width_ = 0;
+    int map_height_ = 0;
+    int cell_width_ = 0;
+    int cell_count_per_row_ = 0;
+    int cell_count_per_col_ = 0;
+    Vector2D min_;
+    Vector2D max_;
+};