rename project folder (:tf: commit log)

1 files changed, 384 insertions, 0 deletions

diff --git a/NorthstarDLL/buildainfile.cpp b/NorthstarDLL/buildainfile.cpp
new file mode 100644
index 00000000..a80185e5
--- /dev/null
+++ b/NorthstarDLL/buildainfile.cpp
@@ -0,0 +1,384 @@
+#include "pch.h"
+#include "convar.h"
+#include "hoststate.h"
+#include "NSMem.h"
+
+#include <fstream>
+#include <filesystem>
+
+AUTOHOOK_INIT()
+
+namespace fs = std::filesystem;
+
+const int AINET_VERSION_NUMBER = 57;
+const int AINET_SCRIPT_VERSION_NUMBER = 21;
+const int PLACEHOLDER_CRC = 0;
+const int MAX_HULLS = 5;
+
+struct CAI_NodeLink
+{
+	short srcId;
+	short destId;
+	bool hulls[MAX_HULLS];
+	char unk0;
+	char unk1; // maps => unk0 on disk
+	char unk2[5];
+	int64_t flags;
+};
+
+#pragma pack(push, 1)
+struct CAI_NodeLinkDisk
+{
+	short srcId;
+	short destId;
+	char unk0;
+	bool hulls[MAX_HULLS];
+};
+
+struct CAI_Node
+{
+	int index; // not present on disk
+	float x;
+	float y;
+	float z;
+	float hulls[MAX_HULLS];
+	float yaw;
+
+	int unk0; // always 2 in buildainfile, maps directly to unk0 in disk struct
+	int unk1; // maps directly to unk1 in disk struct
+	int unk2[MAX_HULLS]; // maps directly to unk2 in disk struct, despite being ints rather than shorts
+
+	// view server.dll+393672 for context and death wish
+	char unk3[MAX_HULLS]; // hell on earth, should map to unk3 on disk
+	char pad[3]; // aligns next bytes
+	float unk4[MAX_HULLS]; // i have no fucking clue, calculated using some kind of demon hell function float magic
+
+	CAI_NodeLink** links;
+	char unk5[16];
+	int linkcount;
+	int unk11; // bad name lmao
+	short unk6; // should match up to unk4 on disk
+	char unk7[16]; // padding until next bit
+	short unk8; // should match up to unk5 on disk
+	char unk9[8]; // padding until next bit
+	char unk10[8]; // should match up to unk6 on disk
+};
+
+// the way CAI_Nodes are represented in on-disk ain files
+#pragma pack(push, 1)
+struct CAI_NodeDisk
+{
+	float x;
+	float y;
+	float z;
+	float yaw;
+	float hulls[MAX_HULLS];
+
+	char unk0;
+	int unk1;
+	short unk2[MAX_HULLS];
+	char unk3[MAX_HULLS];
+	short unk4;
+	short unk5;
+	char unk6[8];
+}; // total size of 68 bytes
+
+struct UnkNodeStruct0
+{
+	int index;
+	char unk0;
+	char unk1; // maps to unk1 on disk
+	char pad0[2]; // padding to +8
+
+	float x;
+	float y;
+	float z;
+
+	char pad5[4];
+	int* unk2; // maps to unk5 on disk;
+	char pad1[16]; // pad to +48
+	int unkcount0; // maps to unkcount0 on disk
+
+	char pad2[4]; // pad to +56
+	int* unk3;
+	char pad3[16]; // pad to +80
+	int unkcount1;
+
+	char pad4[132];
+	char unk5;
+};
+
+int* pUnkStruct0Count;
+UnkNodeStruct0*** pppUnkNodeStruct0s;
+
+struct UnkLinkStruct1
+{
+	short unk0;
+	short unk1;
+	int unk2;
+	char unk3;
+	char unk4;
+	char unk5;
+};
+
+int* pUnkLinkStruct1Count;
+UnkLinkStruct1*** pppUnkStruct1s;
+
+struct CAI_ScriptNode
+{
+	float x;
+	float y;
+	float z;
+	uint64_t scriptdata;
+};
+
+struct CAI_Network
+{
+	// +0
+	char unk0[8];
+	// +8
+	int linkcount; // this is uninitialised and never set on ain build, fun!
+	// +12
+	char unk1[124];
+	// +136
+	int zonecount;
+	// +140
+	char unk2[16];
+	// +156
+	int unk5; // unk8 on disk
+	// +160
+	char unk6[4];
+	// +164
+	int hintcount;
+	// +168
+	short hints[2000]; // these probably aren't actually hints, but there's 1 of them per hint so idk
+	// +4168
+	int scriptnodecount;
+	// +4172
+	CAI_ScriptNode scriptnodes[4000];
+	// +84172
+	int nodecount;
+	// +84176
+	CAI_Node** nodes;
+};
+
+char** pUnkServerMapversionGlobal;
+
+ConVar* Cvar_ns_ai_dumpAINfileFromLoad;
+
+void DumpAINInfo(CAI_Network* aiNetwork)
+{
+	fs::path writePath("r2/maps/graphs");
+	writePath /= R2::g_pHostState->m_levelName;
+	writePath += ".ain";
+
+	// dump from memory
+	spdlog::info("writing ain file {}", writePath.string());
+	spdlog::info("");
+	spdlog::info("");
+	spdlog::info("");
+	spdlog::info("");
+	spdlog::info("");
+
+	std::ofstream writeStream(writePath, std::ofstream::binary);
+	spdlog::info("writing ainet version: {}", AINET_VERSION_NUMBER);
+	writeStream.write((char*)&AINET_VERSION_NUMBER, sizeof(int));
+
+	// could probably be cleaner but whatever
+	int mapVersion = *(int*)(*pUnkServerMapversionGlobal + 104);
+	spdlog::info("writing map version: {}", mapVersion); // temp
+	writeStream.write((char*)&mapVersion, sizeof(int));
+	spdlog::info("writing placeholder crc: {}", PLACEHOLDER_CRC);
+	writeStream.write((char*)&PLACEHOLDER_CRC, sizeof(int));
+
+	int calculatedLinkcount = 0;
+
+	// path nodes
+	spdlog::info("writing nodecount: {}", aiNetwork->nodecount);
+	writeStream.write((char*)&aiNetwork->nodecount, sizeof(int));
+
+	for (int i = 0; i < aiNetwork->nodecount; i++)
+	{
+		// construct on-disk node struct
+		CAI_NodeDisk diskNode;
+		diskNode.x = aiNetwork->nodes[i]->x;
+		diskNode.y = aiNetwork->nodes[i]->y;
+		diskNode.z = aiNetwork->nodes[i]->z;
+		diskNode.yaw = aiNetwork->nodes[i]->yaw;
+		memcpy(diskNode.hulls, aiNetwork->nodes[i]->hulls, sizeof(diskNode.hulls));
+		diskNode.unk0 = (char)aiNetwork->nodes[i]->unk0;
+		diskNode.unk1 = aiNetwork->nodes[i]->unk1;
+
+		for (int j = 0; j < MAX_HULLS; j++)
+		{
+			diskNode.unk2[j] = (short)aiNetwork->nodes[i]->unk2[j];
+			spdlog::info((short)aiNetwork->nodes[i]->unk2[j]);
+		}
+
+		memcpy(diskNode.unk3, aiNetwork->nodes[i]->unk3, sizeof(diskNode.unk3));
+		diskNode.unk4 = aiNetwork->nodes[i]->unk6;
+		diskNode.unk5 =
+			-1; // aiNetwork->nodes[i]->unk8; // this field is wrong, however, it's always -1 in vanilla navmeshes anyway, so no biggie
+		memcpy(diskNode.unk6, aiNetwork->nodes[i]->unk10, sizeof(diskNode.unk6));
+
+		spdlog::info("writing node {} from {} to {:x}", aiNetwork->nodes[i]->index, (void*)aiNetwork->nodes[i], writeStream.tellp());
+		writeStream.write((char*)&diskNode, sizeof(CAI_NodeDisk));
+
+		calculatedLinkcount += aiNetwork->nodes[i]->linkcount;
+	}
+
+	// links
+	spdlog::info("linkcount: {}", aiNetwork->linkcount);
+	spdlog::info("calculated total linkcount: {}", calculatedLinkcount);
+
+	calculatedLinkcount /= 2;
+	if (Cvar_ns_ai_dumpAINfileFromLoad->GetBool())
+	{
+		if (aiNetwork->linkcount == calculatedLinkcount)
+			spdlog::info("caculated linkcount is normal!");
+		else
+			spdlog::warn("calculated linkcount has weird value! this is expected on build!");
+	}
+
+	spdlog::info("writing linkcount: {}", calculatedLinkcount);
+	writeStream.write((char*)&calculatedLinkcount, sizeof(int));
+
+	for (int i = 0; i < aiNetwork->nodecount; i++)
+	{
+		for (int j = 0; j < aiNetwork->nodes[i]->linkcount; j++)
+		{
+			// skip links that don't originate from current node
+			if (aiNetwork->nodes[i]->links[j]->srcId != aiNetwork->nodes[i]->index)
+				continue;
+
+			CAI_NodeLinkDisk diskLink;
+			diskLink.srcId = aiNetwork->nodes[i]->links[j]->srcId;
+			diskLink.destId = aiNetwork->nodes[i]->links[j]->destId;
+			diskLink.unk0 = aiNetwork->nodes[i]->links[j]->unk1;
+			memcpy(diskLink.hulls, aiNetwork->nodes[i]->links[j]->hulls, sizeof(diskLink.hulls));
+
+			spdlog::info("writing link {} => {} to {:x}", diskLink.srcId, diskLink.destId, writeStream.tellp());
+			writeStream.write((char*)&diskLink, sizeof(CAI_NodeLinkDisk));
+		}
+	}
+
+	// don't know what this is, it's likely a block from tf1 that got deprecated? should just be 1 int per node
+	spdlog::info("writing {:x} bytes for unknown block at {:x}", aiNetwork->nodecount * sizeof(uint32_t), writeStream.tellp());
+	uint32_t* unkNodeBlock = new uint32_t[aiNetwork->nodecount];
+	memset(unkNodeBlock, 0, aiNetwork->nodecount * sizeof(uint32_t));
+	writeStream.write((char*)unkNodeBlock, aiNetwork->nodecount * sizeof(uint32_t));
+	delete[] unkNodeBlock;
+
+	// TODO: this is traverse nodes i think? these aren't used in tf2 ains so we can get away with just writing count=0 and skipping
+	// but ideally should actually dump these
+	spdlog::info("writing {} traversal nodes at {:x}...", 0, writeStream.tellp());
+	short traverseNodeCount = 0;
+	writeStream.write((char*)&traverseNodeCount, sizeof(short));
+	// only write count since count=0 means we don't have to actually do anything here
+
+	// TODO: ideally these should be actually dumped, but they're always 0 in tf2 from what i can tell
+	spdlog::info("writing {} bytes for unknown hull block at {:x}", MAX_HULLS * 8, writeStream.tellp());
+	char* unkHullBlock = new char[MAX_HULLS * 8];
+	memset(unkHullBlock, 0, MAX_HULLS * 8);
+	writeStream.write(unkHullBlock, MAX_HULLS * 8);
+	delete[] unkHullBlock;
+
+	// unknown struct that's seemingly node-related
+	spdlog::info("writing {} unknown node structs at {:x}", *pUnkStruct0Count, writeStream.tellp());
+	writeStream.write((char*)pUnkStruct0Count, sizeof(*pUnkStruct0Count));
+	for (int i = 0; i < *pUnkStruct0Count; i++)
+	{
+		spdlog::info("writing unknown node struct {} at {:x}", i, writeStream.tellp());
+		UnkNodeStruct0* nodeStruct = (*pppUnkNodeStruct0s)[i];
+
+		writeStream.write((char*)&nodeStruct->index, sizeof(nodeStruct->index));
+		writeStream.write((char*)&nodeStruct->unk1, sizeof(nodeStruct->unk1));
+
+		writeStream.write((char*)&nodeStruct->x, sizeof(nodeStruct->x));
+		writeStream.write((char*)&nodeStruct->y, sizeof(nodeStruct->y));
+		writeStream.write((char*)&nodeStruct->z, sizeof(nodeStruct->z));
+
+		writeStream.write((char*)&nodeStruct->unkcount0, sizeof(nodeStruct->unkcount0));
+		for (int j = 0; j < nodeStruct->unkcount0; j++)
+		{
+			short unk2Short = (short)nodeStruct->unk2[j];
+			writeStream.write((char*)&unk2Short, sizeof(unk2Short));
+		}
+
+		writeStream.write((char*)&nodeStruct->unkcount1, sizeof(nodeStruct->unkcount1));
+		for (int j = 0; j < nodeStruct->unkcount1; j++)
+		{
+			short unk3Short = (short)nodeStruct->unk3[j];
+			writeStream.write((char*)&unk3Short, sizeof(unk3Short));
+		}
+
+		writeStream.write((char*)&nodeStruct->unk5, sizeof(nodeStruct->unk5));
+	}
+
+	// unknown struct that's seemingly link-related
+	spdlog::info("writing {} unknown link structs at {:x}", *pUnkLinkStruct1Count, writeStream.tellp());
+	writeStream.write((char*)pUnkLinkStruct1Count, sizeof(*pUnkLinkStruct1Count));
+	for (int i = 0; i < *pUnkLinkStruct1Count; i++)
+	{
+		// disk and memory structs are literally identical here so just directly write
+		spdlog::info("writing unknown link struct {} at {:x}", i, writeStream.tellp());
+		writeStream.write((char*)(*pppUnkStruct1s)[i], sizeof(*(*pppUnkStruct1s)[i]));
+	}
+
+	// some weird int idk what this is used for
+	writeStream.write((char*)&aiNetwork->unk5, sizeof(aiNetwork->unk5));
+
+	// tf2-exclusive stuff past this point, i.e. ain v57 only
+	spdlog::info("writing {} script nodes at {:x}", aiNetwork->scriptnodecount, writeStream.tellp());
+	writeStream.write((char*)&aiNetwork->scriptnodecount, sizeof(aiNetwork->scriptnodecount));
+	for (int i = 0; i < aiNetwork->scriptnodecount; i++)
+	{
+		// disk and memory structs are literally identical here so just directly write
+		spdlog::info("writing script node {} at {:x}", i, writeStream.tellp());
+		writeStream.write((char*)&aiNetwork->scriptnodes[i], sizeof(aiNetwork->scriptnodes[i]));
+	}
+
+	spdlog::info("writing {} hints at {:x}", aiNetwork->hintcount, writeStream.tellp());
+	writeStream.write((char*)&aiNetwork->hintcount, sizeof(aiNetwork->hintcount));
+	for (int i = 0; i < aiNetwork->hintcount; i++)
+	{
+		spdlog::info("writing hint data {} at {:x}", i, writeStream.tellp());
+		writeStream.write((char*)&aiNetwork->hints[i], sizeof(aiNetwork->hints[i]));
+	}
+
+	writeStream.close();
+}
+
+AUTOHOOK(CAI_NetworkBuilder__Build, server.dll + 0x385E20,
+void,, (void* builder, CAI_Network* aiNetwork, void* unknown), 
+{
+	CAI_NetworkBuilder__Build(builder, aiNetwork, unknown);
+
+	DumpAINInfo(aiNetwork);
+})
+
+AUTOHOOK(LoadAINFile, server.dll + 0x3933A0,
+void,, (void* aimanager, void* buf, const char* filename), 
+{
+	LoadAINFile(aimanager, buf, filename);
+
+	if (Cvar_ns_ai_dumpAINfileFromLoad->GetBool())
+	{
+		spdlog::info("running DumpAINInfo for loaded file {}", filename);
+		DumpAINInfo(*(CAI_Network**)((char*)aimanager + 2536));
+	}
+})
+
+ON_DLL_LOAD("server.dll", BuildAINFile, [](HMODULE baseAddress)
+{
+	AUTOHOOK_DISPATCH()
+
+	Cvar_ns_ai_dumpAINfileFromLoad = new ConVar(
+		"ns_ai_dumpAINfileFromLoad", "0", FCVAR_NONE, "For debugging: whether we should dump ain data for ains loaded from disk");
+
+	pUnkStruct0Count = (int*)((char*)baseAddress + 0x1063BF8);
+	pppUnkNodeStruct0s = (UnkNodeStruct0***)((char*)baseAddress + 0x1063BE0);
+	pUnkLinkStruct1Count = (int*)((char*)baseAddress + 0x1063AA8);
+	pppUnkStruct1s = (UnkLinkStruct1***)((char*)baseAddress + 0x1063A90);
+	pUnkServerMapversionGlobal = (char**)((char*)baseAddress + 0xBFBE08);
+});
\ No newline at end of file