move #ifdefs to a JSON config

TR1Main.json

@@ -0,0 +1,4 @@
+{
+    "keep_health_between_levels": false,
+    "disable_medpacks": false
+}

entrypoint.sh

@@ -1,2 +1,3 @@
-#!/bin/sh
-i686-w64-mingw32-gcc -shared src/*.c -ldbghelp -o build/TR1Main.dll
+#!/bin/bash
+shopt -s globstar
+i686-w64-mingw32-gcc -W -static -shared src/**/*.c -ldbghelp -o build/TR1Main.dll

src/func.c

@@ -168,12 +168,9 @@ int LoadRooms(FILE *fp) {
 void __cdecl LevelStats(int levelID) {
     TRACE("");
 
-    #ifdef FEATURE_KEEP_HEALTH_BETWEEN_LEVELS
-        // store Lara health
-        TR1MStoredLaraHealth = LaraItem ? LaraItem->hitPoints : 1000;
-        TRACE("Lara pointers: %p/%d", LaraItem, Lara.itemNumber);
-        TRACE("Storing Lara health: %d", LaraItem ? LaraItem->hitPoints : -1);
-    #endif
+    if (TR1MConfig.keep_health_between_levels) {
+        TR1MData.stored_lara_health = LaraItem ? LaraItem->hitPoints : 1000;
+    }
 
     static char buf[100];
 
@@ -280,7 +277,7 @@ int __cdecl LoadLevelByID(int levelID) {
     TRACE("%d", levelID);
     int ret = LoadLevel(LevelNames[levelID], levelID);
 
-    #ifdef FEATURE_KEEP_HEALTH_BETWEEN_LEVELS
+    if (TR1MConfig.keep_health_between_levels) {
         // check if we're in main menu by seeing if there is Lara item in the
         // currently loaded level.
         int laraFound = 0;
@@ -292,9 +289,9 @@ int __cdecl LoadLevelByID(int levelID) {
 
         if (!laraFound) {
             TRACE("Resetting stored Lara health");
-            TR1MStoredLaraHealth = 1000;
+            TR1MData.stored_lara_health = 1000;
+        }
     }
-    #endif
 
     return ret;
 }
@@ -372,14 +369,14 @@ int __cdecl LoadItems(FILE *handle)
                 S_ExitSystem(StringToShow);
             }
 
-            #ifdef FEATURE_DISABLE_MEDPACKS
+            if (TR1MConfig.disable_medpacks) {
                 if (objectID == ID_LARGE_MEDIPACK_ITEM || objectID == ID_SMALL_MEDIPACK_ITEM) {
                     currentItem->pos.x = -1;
                     currentItem->pos.y = -1;
                     currentItem->pos.z = -1;
                     currentItem->roomNumber = 0;
                 }
-            #endif
+            }
 
             InitialiseItem(i);
         }
@@ -392,13 +389,13 @@ void __cdecl InitialiseLara(void) {
     TRACE("");
     LaraItem->moreFlags &= 0xFFDFu;
     LaraItem->data = &Lara;
-    #ifdef FEATURE_KEEP_HEALTH_BETWEEN_LEVELS
-        TRACE("Restoring Lara health: %d", TR1MStoredLaraHealth);
-        LaraItem->hitPoints = TR1MStoredLaraHealth;
-    #else
+    if (TR1MConfig.keep_health_between_levels) {
+        TRACE("Restoring Lara health: %d", TR1MData.stored_lara_health);
+        LaraItem->hitPoints = TR1MData.stored_lara_health;
+    } else {
         TRACE("Restoring Lara health: default");
         LaraItem->hitPoints = 1000;
-    #endif
+    }
 
     Lara.air = 1800;
     Lara.field_8 = 0;

src/json-parser/LICENSE

@@ -0,0 +1,26 @@
+
+  Copyright (C) 2012, 2013 James McLaughlin et al.  All rights reserved.
+ 
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+ 
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+ 
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+ 
+  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+  SUCH DAMAGE.
+

src/json-parser/README.md

@@ -0,0 +1,97 @@
+Very low footprint JSON parser written in portable ANSI C.
+
+* BSD licensed with no dependencies (i.e. just drop the C file into your project)
+* Never recurses or allocates more memory than it needs
+* Very simple API with operator sugar for C++
+
+[![Build Status](https://secure.travis-ci.org/udp/json-parser.png)](http://travis-ci.org/udp/json-parser)
+
+_Want to serialize?  Check out [json-builder](https://github.com/udp/json-builder)!_
+
+Installing
+----------
+
+There is now a makefile which will produce a libjsonparser static and dynamic library.  However, this
+is _not_ required to build json-parser, and the source files (`json.c` and `json.h`) should be happy
+in any build system you already have in place.
+
+
+API
+---
+
+    json_value * json_parse (const json_char * json,
+                             size_t length);
+
+    json_value * json_parse_ex (json_settings * settings,
+                                const json_char * json,
+                                size_t length,
+                                char * error);
+
+    void json_value_free (json_value *);
+
+The `type` field of `json_value` is one of:
+
+* `json_object` (see `u.object.length`, `u.object.values[x].name`, `u.object.values[x].value`)
+* `json_array` (see `u.array.length`, `u.array.values`)
+* `json_integer` (see `u.integer`)
+* `json_double` (see `u.dbl`)
+* `json_string` (see `u.string.ptr`, `u.string.length`)
+* `json_boolean` (see `u.boolean`)
+* `json_null`
+
+
+Compile-Time Options
+--------------------
+
+    -DJSON_TRACK_SOURCE
+
+Stores the source location (line and column number) inside each `json_value`.
+
+This is useful for application-level error reporting.
+
+
+Runtime Options
+---------------
+
+    settings |= json_enable_comments;
+
+Enables C-style `// line` and `/* block */` comments.
+
+    size_t value_extra
+
+The amount of space (if any) to allocate at the end of each `json_value`, in
+order to give the application space to add metadata.
+
+    void * (* mem_alloc) (size_t, int zero, void * user_data);
+    void (* mem_free) (void *, void * user_data);
+
+Custom allocator routines.  If NULL, the default `malloc` and `free` will be used.
+
+The `user_data` pointer will be forwarded from `json_settings` to allow application
+context to be passed.
+
+
+Changes in version 1.1.0
+------------------------
+
+* UTF-8 byte order marks are now skipped if present
+
+* Allows cross-compilation by honoring --host if given (@wkz)
+
+* Maximum size for error buffer is now exposed in header (@LB--)
+
+* GCC warning for `static` after `const` fixed (@batrick)
+
+* Optional support for C-style line and block comments added (@Jin-W-FS)
+
+* `name_length` field added to object values 
+
+* It is now possible to retrieve the source line/column number of a parsed `json_value` when `JSON_TRACK_SOURCE` is enabled
+
+* The application may now extend `json_value` using the `value_extra` setting
+
+* Un-ambiguate pow call in the case of C++ overloaded pow (@fcartegnie)
+
+* Fix null pointer de-reference when a non-existing array is closed and no root value is present
+
+

src/json-parser/json.h

@@ -0,0 +1,283 @@
+
+/* vim: set et ts=3 sw=3 sts=3 ft=c:
+ *
+ * Copyright (C) 2012, 2013, 2014 James McLaughlin et al.  All rights reserved.
+ * https://github.com/udp/json-parser
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _JSON_H
+#define _JSON_H
+
+#ifndef json_char
+   #define json_char char
+#endif
+
+#ifndef json_int_t
+   #ifndef _MSC_VER
+      #include <inttypes.h>
+      #define json_int_t int64_t
+   #else
+      #define json_int_t __int64
+   #endif
+#endif
+
+#include <stdlib.h>
+
+#ifdef __cplusplus
+
+   #include <string.h>
+
+   extern "C"
+   {
+
+#endif
+
+typedef struct
+{
+   unsigned long max_memory;
+   int settings;
+
+   /* Custom allocator support (leave null to use malloc/free)
+    */
+
+   void * (* mem_alloc) (size_t, int zero, void * user_data);
+   void (* mem_free) (void *, void * user_data);
+
+   void * user_data;  /* will be passed to mem_alloc and mem_free */
+
+   size_t value_extra;  /* how much extra space to allocate for values? */
+
+} json_settings;
+
+#define json_enable_comments  0x01
+
+typedef enum
+{
+   json_none,
+   json_object,
+   json_array,
+   json_integer,
+   json_double,
+   json_string,
+   json_boolean,
+   json_null
+
+} json_type;
+
+extern const struct _json_value json_value_none;
+       
+typedef struct _json_object_entry
+{
+    json_char * name;
+    unsigned int name_length;
+    
+    struct _json_value * value;
+    
+} json_object_entry;
+
+typedef struct _json_value
+{
+   struct _json_value * parent;
+
+   json_type type;
+
+   union
+   {
+      int boolean;
+      json_int_t integer;
+      double dbl;
+
+      struct
+      {
+         unsigned int length;
+         json_char * ptr; /* null terminated */
+
+      } string;
+
+      struct
+      {
+         unsigned int length;
+
+         json_object_entry * values;
+
+         #if defined(__cplusplus) && __cplusplus >= 201103L
+         decltype(values) begin () const
+         {  return values;
+         }
+         decltype(values) end () const
+         {  return values + length;
+         }
+         #endif
+
+      } object;
+
+      struct
+      {
+         unsigned int length;
+         struct _json_value ** values;
+
+         #if defined(__cplusplus) && __cplusplus >= 201103L
+         decltype(values) begin () const
+         {  return values;
+         }
+         decltype(values) end () const
+         {  return values + length;
+         }
+         #endif
+
+      } array;
+
+   } u;
+
+   union
+   {
+      struct _json_value * next_alloc;
+      void * object_mem;
+
+   } _reserved;
+
+   #ifdef JSON_TRACK_SOURCE
+
+      /* Location of the value in the source JSON
+       */
+      unsigned int line, col;
+
+   #endif
+
+
+   /* Some C++ operator sugar */
+
+   #ifdef __cplusplus
+
+      public:
+
+         inline _json_value ()
+         {  memset (this, 0, sizeof (_json_value));
+         }
+
+         inline const struct _json_value &operator [] (int index) const
+         {
+            if (type != json_array || index < 0
+                     || ((unsigned int) index) >= u.array.length)
+            {
+               return json_value_none;
+            }
+
+            return *u.array.values [index];
+         }
+
+         inline const struct _json_value &operator [] (const char * index) const
+         { 
+            if (type != json_object)
+               return json_value_none;
+
+            for (unsigned int i = 0; i < u.object.length; ++ i)
+               if (!strcmp (u.object.values [i].name, index))
+                  return *u.object.values [i].value;
+
+            return json_value_none;
+         }
+
+         inline operator const char * () const
+         {  
+            switch (type)
+            {
+               case json_string:
+                  return u.string.ptr;
+
+               default:
+                  return "";
+            };
+         }
+
+         inline operator json_int_t () const
+         {  
+            switch (type)
+            {
+               case json_integer:
+                  return u.integer;
+
+               case json_double:
+                  return (json_int_t) u.dbl;
+
+               default:
+                  return 0;
+            };
+         }
+
+         inline operator bool () const
+         {  
+            if (type != json_boolean)
+               return false;
+
+            return u.boolean != 0;
+         }
+
+         inline operator double () const
+         {  
+            switch (type)
+            {
+               case json_integer:
+                  return (double) u.integer;
+
+               case json_double:
+                  return u.dbl;
+
+               default:
+                  return 0;
+            };
+         }
+
+   #endif
+
+} json_value;
+       
+json_value * json_parse (const json_char * json,
+                         size_t length);
+
+#define json_error_max 128
+json_value * json_parse_ex (json_settings * settings,
+                            const json_char * json,
+                            size_t length,
+                            char * error);
+
+void json_value_free (json_value *);
+
+
+/* Not usually necessary, unless you used a custom mem_alloc and now want to
+ * use a custom mem_free.
+ */
+void json_value_free_ex (json_settings * settings,
+                         json_value *);
+
+
+#ifdef __cplusplus
+   } /* extern "C" */
+#endif
+
+#endif
+
+

src/json_utils.c

@@ -0,0 +1,34 @@
+#include <string.h>
+#include "json_utils.h"
+
+json_value *get_json_field(json_value *root, json_type fieldType, const char *name, int *pIndex) {
+    if (root == NULL || root->type != json_object) {
+        return NULL;
+    }
+    json_value *result = NULL;
+    unsigned int len = name ? strlen(name) : 0;
+    unsigned int i = pIndex ? *pIndex : 0;
+    for (; i < root->u.object.length; ++i) {
+        if (root->u.object.values[i].value->type == fieldType) {
+            if (
+                !name
+                || (
+                    len == root->u.object.values[i].name_length
+                    && !strncmp(root->u.object.values[i].name, name, len)
+                )
+            ) {
+                result = root->u.object.values[i].value;
+                break;
+            }
+        }
+    }
+    if (pIndex) {
+        *pIndex = i;
+    }
+    return result;
+}
+
+int get_json_boolean_field_value(json_value *root, const char *name) {
+    json_value *field = get_json_field(root, json_boolean, name, NULL);
+    return field ? field->u.boolean : 0;
+}

src/json_utils.h

@@ -0,0 +1,9 @@
+#ifndef TR1M_JSON_UTILS_H
+#define TR1M_JSON_UTILS_H
+
+#include "json-parser/json.h"
+
+json_value *get_json_field(json_value *root, json_type fieldType, const char *name, int *pIndex);
+int get_json_boolean_field_value(json_value *root, const char *name);
+
+#endif

src/main.c

@@ -1,9 +1,11 @@
 #include <windows.h>
 #include <stdio.h>
 
+#include "json_utils.h"
 #include "struct.h"
 #include "util.h"
 #include "func.h"
+#include "mod.h"
 
 HINSTANCE hInstance = NULL;
 
@@ -26,10 +28,34 @@ static void Inject() {
     //INJECT(0x00430450, S_DrawAirBar);
 }
 
+static int ReadConfig() {
+    FILE *fp = fopen("TR1Main.json", "rb");
+    if (!fp) {
+        return 0;
+    }
+
+    fseek(fp, 0, SEEK_END);
+    int cfg_size = ftell(fp);
+    fseek(fp, 0, SEEK_SET);
+
+    char *cfg_data = malloc(cfg_size);
+    fread(cfg_data, 1, cfg_size, fp);
+
+    json_value *json = json_parse((const json_char*)cfg_data, cfg_size);
+
+    TR1MConfig.keep_health_between_levels = get_json_boolean_field_value(json, "keep_health_between_levels");
+    TR1MConfig.disable_medpacks = get_json_boolean_field_value(json, "disable_medpacks");
+
+    json_value_free(json);
+    free(cfg_data);
+    return 1;
+}
+
 BOOL APIENTRY DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) {
     switch (fdwReason) {
         case DLL_PROCESS_ATTACH:
             freopen("./TR1Main.log", "w", stdout);
+            ReadConfig();
             TRACE("Attached");
             hInstance = hinstDLL;
             Inject();

src/mod.h

@@ -3,8 +3,13 @@
 
 #include "util.h"
 
-#ifdef FEATURE_KEEP_HEALTH_BETWEEN_LEVELS
-static int TR1MStoredLaraHealth = 1000;
-#endif
+struct {
+    int keep_health_between_levels;
+    int disable_medpacks;
+} TR1MConfig;
+
+struct {
+    int stored_lara_health;
+} TR1MData;
 
 #endif