Folder restructuring from primedev (#624)v1.21.2-rc3v1.21.2

Copies of over the primedev folder structure for easier cherry-picking of further changes

Co-authored-by: F1F7Y <filip.bartos07@proton.me>

1 files changed, 260 insertions, 0 deletions

diff --git a/primedev/engine/r2engine.h b/primedev/engine/r2engine.h
new file mode 100644
index 00000000..e3bcc37e
--- /dev/null
+++ b/primedev/engine/r2engine.h
@@ -0,0 +1,260 @@
+#pragma once
+#include "shared/keyvalues.h"
+
+// Cbuf
+enum class ECommandTarget_t
+{
+	CBUF_FIRST_PLAYER = 0,
+	CBUF_LAST_PLAYER = 1, // MAX_SPLITSCREEN_CLIENTS - 1, MAX_SPLITSCREEN_CLIENTS = 2
+	CBUF_SERVER = CBUF_LAST_PLAYER + 1,
+
+	CBUF_COUNT,
+};
+
+enum class cmd_source_t
+{
+	// Added to the console buffer by gameplay code.  Generally unrestricted.
+	kCommandSrcCode,
+
+	// Sent from code via engine->ClientCmd, which is restricted to commands visible
+	// via FCVAR_GAMEDLL_FOR_REMOTE_CLIENTS.
+	kCommandSrcClientCmd,
+
+	// Typed in at the console or via a user key-bind.  Generally unrestricted, although
+	// the client will throttle commands sent to the server this way to 16 per second.
+	kCommandSrcUserInput,
+
+	// Came in over a net connection as a clc_stringcmd
+	// host_client will be valid during this state.
+	//
+	// Restricted to FCVAR_GAMEDLL commands (but not convars) and special non-ConCommand
+	// server commands hardcoded into gameplay code (e.g. "joingame")
+	kCommandSrcNetClient,
+
+	// Received from the server as the client
+	//
+	// Restricted to commands with FCVAR_SERVER_CAN_EXECUTE
+	kCommandSrcNetServer,
+
+	// Being played back from a demo file
+	//
+	// Not currently restricted by convar flag, but some commands manually ignore calls
+	// from this source.  FIXME: Should be heavily restricted as demo commands can come
+	// from untrusted sources.
+	kCommandSrcDemoFile,
+
+	// Invalid value used when cleared
+	kCommandSrcInvalid = -1
+};
+
+typedef ECommandTarget_t (*Cbuf_GetCurrentPlayerType)();
+extern Cbuf_GetCurrentPlayerType Cbuf_GetCurrentPlayer;
+
+typedef void (*Cbuf_AddTextType)(ECommandTarget_t eTarget, const char* text, cmd_source_t source);
+extern Cbuf_AddTextType Cbuf_AddText;
+
+typedef void (*Cbuf_ExecuteType)();
+extern Cbuf_ExecuteType Cbuf_Execute;
+
+extern bool (*CCommand__Tokenize)(CCommand& self, const char* pCommandString, cmd_source_t commandSource);
+
+// CEngine
+
+enum EngineQuitState
+{
+	QUIT_NOTQUITTING = 0,
+	QUIT_TODESKTOP,
+	QUIT_RESTART
+};
+
+enum class EngineState_t
+{
+	DLL_INACTIVE = 0, // no dll
+	DLL_ACTIVE, // engine is focused
+	DLL_CLOSE, // closing down dll
+	DLL_RESTART, // engine is shutting down but will restart right away
+	DLL_PAUSED, // engine is paused, can become active from this state
+};
+
+class CEngine
+{
+public:
+	virtual void unknown() = 0; // unsure if this is where
+	virtual bool Load(bool dedicated, const char* baseDir) = 0;
+	virtual void Unload() = 0;
+	virtual void SetNextState(EngineState_t iNextState) = 0;
+	virtual EngineState_t GetState() = 0;
+	virtual void Frame() = 0;
+	virtual double GetFrameTime() = 0;
+	virtual float GetCurTime() = 0;
+
+	EngineQuitState m_nQuitting;
+	EngineState_t m_nDllState;
+	EngineState_t m_nNextDllState;
+	double m_flCurrentTime;
+	float m_flFrameTime;
+	double m_flPreviousTime;
+	float m_flFilteredTime;
+	float m_flMinFrameTime; // Expected duration of a frame, or zero if it is unlimited.
+};
+
+extern CEngine* g_pEngine;
+
+extern void (*CBaseClient__Disconnect)(void* self, uint32_t unknownButAlways1, const char* reason, ...);
+
+#pragma once
+typedef enum
+{
+	NA_NULL = 0,
+	NA_LOOPBACK,
+	NA_IP,
+} netadrtype_t;
+
+#pragma pack(push, 1)
+typedef struct netadr_s
+{
+	netadrtype_t type;
+	unsigned char ip[16]; // IPv6
+	// IPv4's 127.0.0.1 is [::ffff:127.0.0.1], that is:
+	// 00 00 00 00 00 00 00 00    00 00 FF FF 7F 00 00 01
+	unsigned short port;
+} netadr_t;
+#pragma pack(pop)
+
+#pragma pack(push, 1)
+typedef struct netpacket_s
+{
+	netadr_t adr; // sender address
+	// int				source;		// received source
+	char unk[10];
+	double received_time;
+	unsigned char* data; // pointer to raw packet data
+	void* message; // easy bitbuf data access // 'inpacket.message' etc etc (pointer)
+	char unk2[16];
+	int size;
+
+	// bf_read			message;	// easy bitbuf data access // 'inpacket.message' etc etc (pointer)
+	// int				size;		// size in bytes
+	// int				wiresize;   // size in bytes before decompression
+	// bool			stream;		// was send as stream
+	// struct netpacket_s* pNext;	// for internal use, should be NULL in public
+} netpacket_t;
+#pragma pack(pop)
+
+// #56169 $DB69 PData size
+// #512   $200	Trailing data
+// #100	  $64	Safety buffer
+const int PERSISTENCE_MAX_SIZE = 0xDDCD;
+
+// note: NOT_READY and READY are the only entries we have here that are defined by the vanilla game
+// entries after this are custom and used to determine the source of persistence, e.g. whether it is local or remote
+enum class ePersistenceReady : char
+{
+	NOT_READY,
+	READY = 3,
+	READY_INSECURE = 3,
+	READY_REMOTE
+};
+
+enum class eSignonState : int
+{
+	NONE = 0, // no state yet; about to connect
+	CHALLENGE = 1, // client challenging server; all OOB packets
+	CONNECTED = 2, // client is connected to server; netchans ready
+	NEW = 3, // just got serverinfo and string tables
+	PRESPAWN = 4, // received signon buffers
+	GETTINGDATA = 5, // respawn-defined signonstate, assumedly this is for persistence
+	SPAWN = 6, // ready to receive entity packets
+	FIRSTSNAP = 7, // another respawn-defined one
+	FULL = 8, // we are fully connected; first non-delta packet received
+	CHANGELEVEL = 9, // server is changing level; please wait
+};
+
+// clang-format off
+OFFSET_STRUCT(CBaseClient)
+{
+	STRUCT_SIZE(0x2D728)
+	FIELD(0x16, char m_Name[64])
+	FIELD(0x258, KeyValues* m_ConVars)
+	FIELD(0x2A0, eSignonState m_Signon)
+	FIELD(0x358, char m_ClanTag[16])
+	FIELD(0x484, bool m_bFakePlayer)
+	FIELD(0x4A0, ePersistenceReady m_iPersistenceReady)
+	FIELD(0x4FA, char m_PersistenceBuffer[PERSISTENCE_MAX_SIZE])
+	FIELD(0xF500, char m_UID[32])
+};
+// clang-format on
+
+extern CBaseClient* g_pClientArray;
+
+enum server_state_t
+{
+	ss_dead = 0, // Dead
+	ss_loading, // Spawning
+	ss_active, // Running
+	ss_paused, // Running, but paused
+};
+
+extern server_state_t* g_pServerState;
+
+extern char* g_pModName;
+
+// clang-format off
+OFFSET_STRUCT(CGlobalVars)
+{
+	FIELD(0x0,
+		// Absolute time (per frame still - Use Plat_FloatTime() for a high precision real time 
+		//  perf clock, but not that it doesn't obey host_timescale/host_framerate)
+		double m_flRealTime);
+
+	FIELDS(0x8,
+		// Absolute frame counter - continues to increase even if game is paused
+		int m_nFrameCount;
+		
+		// Non-paused frametime
+		float m_flAbsoluteFrameTime;
+		
+		// Current time 
+		//
+		// On the client, this (along with tickcount) takes a different meaning based on what
+		// piece of code you're in:
+		// 
+		//   - While receiving network packets (like in PreDataUpdate/PostDataUpdate and proxies),
+		//     this is set to the SERVER TICKCOUNT for that packet. There is no interval between
+		//     the server ticks.
+		//     [server_current_Tick * tick_interval]
+		//
+		//   - While rendering, this is the exact client clock 
+		//     [client_current_tick * tick_interval + interpolation_amount]
+		//
+		//   - During prediction, this is based on the client's current tick:
+		//     [client_current_tick * tick_interval]
+		float m_flCurTime;
+	)
+
+	FIELDS(0x30,
+		// Time spent on last server or client frame (has nothing to do with think intervals)
+		float m_flFrameTime;
+
+		// current maxplayers setting
+		int m_nMaxClients;
+	)
+
+	FIELDS(0x3C,
+		// Simulation ticks - does not increase when game is paused
+		uint32_t m_nTickCount; // this is weird and doesn't seem to increase once per frame?
+
+		// Simulation tick interval
+		float m_flTickInterval;
+	)
+
+	FIELDS(0x60,
+		const char* m_pMapName;
+		int m_nMapVersion;
+	)
+
+	//FIELD(0x98, double m_flRealTime); // again?
+};
+// clang-format on
+
+extern CGlobalVars* g_pGlobals;