1 files changed, 71 insertions, 0 deletions
diff --git a/src/Api.h b/src/Api.h
new file mode 100644
index 0000000..da763c2
--- /dev/null
+++ b/src/Api.h
@@ -0,0 +1,71 @@
+#ifndef DNG_API_H
+#define DNG_API_H
+
+#include "Level.h"
+#include <lua.hpp>
+#include <memory>
+
+extern std::shared_ptr<Level> lvl;
+
+static int
+c_update_player_pos(lua_State* L)
+{
+  // stack ordering
+  int dy = static_cast<int>(lua_tonumber(L, -1));
+  int dx = static_cast<int>(lua_tonumber(L, -2));
+
+  bool res = false;
+
+  if (lvl->canStep(dx, dy)) {
+    lvl->player.x += dx;
+    lvl->player.y += dy;
+    res = true;
+  }
+
+  lua_pushboolean(L, res);
+
+  return 1;
+}
+
+static int
+c_player_can_move(lua_State* L)
+{
+  // stack ordering
+  int dy = static_cast<int>(lua_tonumber(L, -1));
+  int dx = static_cast<int>(lua_tonumber(L, -2));
+
+  bool res = lvl->canStep(dx, dy);
+  lua_pushboolean(L, res);
+
+  return 1;
+}
+
+static int
+c_enemy_can_move(lua_State* L)
+{
+  return 1;
+}
+
+static int
+c_spawn_enemy(lua_State* L)
+{
+  return 1;
+}
+
+static int
+c_destroy_enemy(lua_State* L)
+{
+  return 1;
+}
+
+static void
+init_c_api(lua_State* L)
+{
+  lua_register(L, "c_update_player_pos", c_update_player_pos);
+  lua_register(L, "c_player_can_move", c_player_can_move);
+  lua_register(L, "c_enemy_can_move", c_enemy_can_move);
+  lua_register(L, "c_spawn_enemy", c_spawn_enemy);
+  lua_register(L, "c_destroy_enemy", c_destroy_enemy);
+}
+
+#endif // DNG_API_H
+\ No newline at end of file