init

TempleWare-CS2/source/cs2/entity/handle.h

@@ -0,0 +1,100 @@
+#pragma once
+#include <cstdint>
+
+// @source: https://developer.valvesoftware.com/wiki/Entity_limit#Source_2_limits
+
+#define INVALID_EHANDLE_INDEX 0xFFFFFFFF
+#define ENT_ENTRY_MASK 0x7FFF
+#define NUM_SERIAL_NUM_SHIFT_BITS 15
+#define ENT_MAX_NETWORKED_ENTRY 16384
+class CBaseEntity;
+class CBaseHandle
+{
+public:
+	CBaseHandle() noexcept :
+		nIndex(INVALID_EHANDLE_INDEX) { }
+
+	CBaseHandle(const int nEntry, const int nSerial) noexcept
+	{
+		nIndex = nEntry | (nSerial << NUM_SERIAL_NUM_SHIFT_BITS);
+	}
+
+	bool operator!=(const CBaseHandle& other) const noexcept
+	{
+		return nIndex != other.nIndex;
+	}
+
+	bool operator==(const CBaseHandle& other) const noexcept
+	{
+		return nIndex == other.nIndex;
+	}
+
+	bool operator<(const CBaseHandle& other) const noexcept
+	{
+		return nIndex < other.nIndex;
+	}
+
+	[[nodiscard]] bool valid() const noexcept
+	{
+		return nIndex != INVALID_EHANDLE_INDEX;
+	}
+
+	[[nodiscard]] int index() const noexcept
+	{
+		return static_cast<int>(nIndex & ENT_ENTRY_MASK);
+	}
+
+	[[nodiscard]] int serial_number() const noexcept
+	{
+		return static_cast<int>(nIndex >> NUM_SERIAL_NUM_SHIFT_BITS);
+	}
+
+private:
+	std::uint32_t nIndex;
+
+};
+
+class c_handle
+{
+public:
+	c_handle();
+	c_handle(const c_handle& other);
+	c_handle(unsigned long value);
+	c_handle(int iEntry, int iSerialNumber);
+
+	inline int get_index()
+	{
+		return handler & 0x7FFF;
+	}
+
+	inline unsigned long get_handle()
+	{
+		return handler;
+	}
+
+	inline bool is_valid()
+	{
+		if (handler <= 0 || handler == 0xffffffff)
+			return false;
+
+		return true;
+	}
+
+protected:
+	std::uint32_t handler;
+};
+
+inline c_handle::c_handle()
+{
+	handler = -1;
+}
+
+inline c_handle::c_handle(const c_handle& other)
+{
+	handler = other.handler;
+}
+
+inline c_handle::c_handle(unsigned long value)
+{
+	handler = value;
+}