From c7ee48dfa6b1aae259af518a1fe3ef409039eca4 Mon Sep 17 00:00:00 2001
From: Wizzard <25581244+Wizzard@users.noreply.toomuchslop.com>
Date: Tue, 19 Sep 2023 13:16:13 -0400
Subject: [PATCH] Added game by game detection to help fix certain issues with
 specific games

---
 Makefile                     |  2 +-
 src/game_detection.c         | 68 ++++++++++++++++++++++++++++++++++++
 src/include/game_detection.h | 17 +++++++++
 src/main.c                   | 28 +++++++++++++++
 4 files changed, 114 insertions(+), 1 deletion(-)
 create mode 100644 src/game_detection.c
 create mode 100644 src/include/game_detection.h

diff --git a/Makefile b/Makefile
index 04fc3f6..cfb7a84 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ INCLUDES=-Isrc/include/sdk/common -Isrc/include/sdk/public -Isrc/include/sdk/pm_
 CFLAGS=-Wall -Wextra -Wno-write-strings -m32 -fPIC $(INCLUDES)
 LDFLAGS=-lm
 
-OBJS=obj/main.c.o obj/globals.c.o obj/cvars.c.o obj/hooks.c.o obj/detour.c.o obj/util.c.o obj/features/movement.c.o obj/features/esp.c.o obj/features/chams.c.o obj/features/aim.c.o obj/features/misc.c.o
+OBJS=obj/main.c.o obj/globals.c.o obj/cvars.c.o obj/hooks.c.o obj/detour.c.o obj/util.c.o obj/features/movement.c.o obj/features/esp.c.o obj/features/chams.c.o obj/features/aim.c.o obj/features/misc.c.o obj/game_detection.c.o
 BIN=libhlcheat.so
 
 .PHONY: clean all inject
diff --git a/src/game_detection.c b/src/game_detection.c
new file mode 100644
index 0000000..31c2eb4
--- /dev/null
+++ b/src/game_detection.c
@@ -0,0 +1,68 @@
+#include "include/game_detection.h"
+#include <string.h> 
+#include <stdio.h>
+
+static GameType current_game = GAME_UNKNOWN;
+
+GameType get_current_game(void) {
+    if (current_game != GAME_UNKNOWN) {
+        return current_game;
+    }
+
+    FILE *fp = fopen("/proc/self/cmdline", "r");
+    if (fp) {
+        char buf[1024];
+        size_t size = fread(buf, sizeof(char), sizeof(buf) - 1, fp);
+        fclose(fp);
+
+        if (size > 0) {
+            buf[size] = '\0';
+
+            char *gameTypeToken = NULL;
+            char *steamToken = NULL;
+
+            int tokensFound = 0;
+
+            for (char *token = buf; token < buf + size; token += strlen(token) + 1) {
+                tokensFound++;
+
+                if (strcmp(token, "-game") == 0) {
+                    gameTypeToken = token + strlen(token) + 1;
+                } else if (strcmp(token, "-steam") == 0) {
+                    steamToken = token;
+                }
+            }
+
+            if (gameTypeToken) {
+                if (strcmp(gameTypeToken, "cstrike") == 0) {
+                    current_game = GAME_CS16;
+                } else if (strcmp(gameTypeToken, "dod") == 0) {
+                    current_game = GAME_DAY_OF_DEFEAT;
+                } else if (strcmp(gameTypeToken, "tfc") == 0) {
+                    current_game = GAME_TFC;
+                }
+            } else if (steamToken && tokensFound == 2) {
+                // If only `-steam` is found and no `-game`, with only two tokens, assume it's Half-Life 1
+                current_game = GAME_HALFLIFE;
+            }
+        }
+    }
+
+    return current_game;
+}
+
+int IsCS16(void) {
+    return get_current_game() == GAME_CS16;
+}
+
+int IsHalfLife(void) {
+    return get_current_game() == GAME_HALFLIFE;
+}
+
+int IsDayOfDefeat(void) {
+    return get_current_game() == GAME_DAY_OF_DEFEAT;
+}
+
+int IsTFC(void) {
+    return get_current_game() == GAME_TFC;
+}
diff --git a/src/include/game_detection.h b/src/include/game_detection.h
new file mode 100644
index 0000000..3de898f
--- /dev/null
+++ b/src/include/game_detection.h
@@ -0,0 +1,17 @@
+#ifndef _GAME_DETECT_H_
+#define _GAME_DETECT_H_
+
+typedef enum {
+    GAME_UNKNOWN = 0,
+    GAME_HALFLIFE,
+    GAME_CS16,
+    GAME_TFC,
+    GAME_DAY_OF_DEFEAT
+} GameType;
+
+GameType get_current_game(void);
+int IsCS16(void);
+int IsHalfLife(void);
+int IsDayOfDefeat(void);
+
+#endif
diff --git a/src/main.c b/src/main.c
index 2646507..4bf157c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -8,6 +8,7 @@
 #include "include/cvars.h"
 #include "include/hooks.h"
 #include "include/util.h"
+#include "include/game_detection.h"
 
 static bool loaded = false;
 
@@ -40,6 +41,33 @@ void load(void) {
     this_game_id = get_cur_game();
 
     i_engine->pfnClientCmd("echo \"goldsource-cheat loaded successfully!\"");
+    i_engine->pfnClientCmd("echo \"Deadzone rulez!\"");
+    i_engine->pfnClientCmd("echo \"https://git.deadzone.lol/Wizzard/goldsource-cheat\"");
+
+
+    GameType game = get_current_game();
+    switch(game) {
+        case GAME_HALFLIFE:
+            i_engine->pfnClientCmd("echo \"Detected Game: Half-Life 1\"");
+            break;
+        case GAME_CS16:
+            i_engine->pfnClientCmd("echo \"Detected Game: Counter-Strike 1.6\"");
+            break;
+        case GAME_DAY_OF_DEFEAT:
+            i_engine->pfnClientCmd("echo \"Detected Game: Day of Defeat\"");
+            break;
+        case GAME_TFC:
+            i_engine->pfnClientCmd("echo \"Detected Game: Team Fortress Classic\"");
+            break;
+        default:
+            i_engine->pfnClientCmd("echo \"Detected Game: Unknown Game\"");
+            break;
+    }
+
+
+    return;
+    
+
 
     loaded = true;
 }