critter script wip

4 files changed, 80 insertions, 0 deletions

diff --git a/src/critter-script-base.cpp b/src/critter-script-base.cpp
new file mode 100644
index 00000000..4808e7b5
--- /dev/null
+++ b/src/critter-script-base.cpp
@@ -0,0 +1,10 @@
+#include "critter-script.inl"
+
+namespace floormat {
+
+template class script_wrapper<critter_script>;
+
+base_script::~base_script() noexcept = default;
+base_script::base_script() noexcept = default;
+
+} // namespace floormat
diff --git a/src/critter-script.cpp b/src/critter-script.cpp
new file mode 100644
index 00000000..e2355a64
--- /dev/null
+++ b/src/critter-script.cpp
@@ -0,0 +1,7 @@
+#include "critter-script.hpp"
+
+namespace floormat {
+
+
+
+} // namespace floormat
diff --git a/src/critter-script.hpp b/src/critter-script.hpp
new file mode 100644
index 00000000..9bd3d977
--- /dev/null
+++ b/src/critter-script.hpp
@@ -0,0 +1,40 @@
+#pragma once
+
+namespace floormat {
+
+struct critter;
+struct Ns;
+
+struct base_script
+{
+    virtual ~base_script() noexcept;
+    virtual void delete_self() = 0;
+    base_script() noexcept;
+};
+
+template<typename T>
+class script_wrapper final
+{
+    static_assert(std::is_base_of_v<base_script, T>);
+    T* ptr;
+
+public:
+    explicit script_wrapper(T* ptr);
+    ~script_wrapper() noexcept;
+
+    const T& operator*() const noexcept;
+    T& operator*() noexcept;
+    const T* operator->() const noexcept;
+    T* operator->() noexcept;
+};
+
+struct critter_script : base_script
+{
+    critter_script(critter& c);
+    virtual void update(critter& c, size_t i, const Ns& dt) = 0;
+    // todo can_activate, activate
+};
+
+extern template class script_wrapper<critter_script>;
+
+} // namespace floormat
diff --git a/src/critter-script.inl b/src/critter-script.inl
new file mode 100644
index 00000000..db6b7000
--- /dev/null
+++ b/src/critter-script.inl
@@ -0,0 +1,23 @@
+#pragma once
+#include "critter-script.hpp"
+#include "compat/assert.hpp"
+
+namespace floormat {
+
+template <typename T> script_wrapper<T>::script_wrapper(T* ptr): ptr{ptr} { fm_assert(ptr); }
+
+template <typename T>
+script_wrapper<T>::~script_wrapper() noexcept
+{
+    ptr->delete_self();
+#ifndef FM_NO_DEBUG
+    ptr = nullptr;
+#endif
+}
+
+template <typename T> const T& script_wrapper<T>::operator*() const noexcept { return *ptr; }
+template <typename T> T& script_wrapper<T>::operator*() noexcept { return *ptr; }
+template <typename T> const T* script_wrapper<T>::operator->() const noexcept { return ptr; }
+template <typename T> T* script_wrapper<T>::operator->() noexcept { return ptr; }
+
+} // namespace floormat