closes #1305, uses absolute paths for all file loads

edit and update the distribution readme

clean up the variables mess

improve the set_exe_path and cleanup

final fixes

distribution/readme.txt

@@ -1,5 +1,5 @@
 Last updated:    2015-02-06
-Release version: 0.2.0-beta
+Release version: 0.0.2-beta
 ------------------------------------------------------------------------
 
 
@@ -89,13 +89,14 @@ a directory of your choice.
 
 When you start OpenRCT2 for the first time, it will look for the RCT2 data files
 in the following locations:
-  - C:\Program Files\Infogrames\RollerCoaster Tycoon 2",
-  - C:\Program Files (x86)\Infogrames\RollerCoaster Tycoon 2",
-  - C:\Program Files\Infogrames Interactive\RollerCoaster Tycoon 2",
-  - C:\Program Files (x86)\Infogrames Interactive\RollerCoaster Tycoon 2",
-  - C:\Program Files\Atari\RollerCoaster Tycoon 2",
-  - C:\Program Files (x86)\Atari\RollerCoaster Tycoon 2",
-  - C:\GOG Games\RollerCoaster Tycoon 2 Triple Thrill Pack"
+  - C:\Program Files\Infogrames\RollerCoaster Tycoon 2,
+  - C:\Program Files (x86)\Infogrames\RollerCoaster Tycoon 2,
+  - C:\Program Files\Infogrames Interactive\RollerCoaster Tycoon 2,
+  - C:\Program Files (x86)\Infogrames Interactive\RollerCoaster Tycoon 2,
+  - C:\Program Files\Atari\RollerCoaster Tycoon 2,
+  - C:\Program Files (x86)\Atari\RollerCoaster Tycoon 2,
+  - C:\GOG Games\RollerCoaster Tycoon 2 Triple Thrill Pack
+  - The location of the openrct2.exe (where OpenRCT2 was extracted/installed)
 
 If none of these locations are found, OpenRCT2 will ask you to manually specify
 the directory. Alternatively after running OpenRCT2 for the first time, you can

src/config.c

@@ -24,6 +24,7 @@
 #include "localisation/localisation.h"
 #include "util/util.h"
 #include "interface/themes.h"
+#include "openrct2.h"
 
 // Magic number for original game cfg file
 static const int MagicNumber = 0x0003113A;
@@ -704,7 +705,8 @@ static bool config_find_rct2_path(char *resultPath)
 		"C:\\Program Files (x86)\\Infogrames Interactive\\RollerCoaster Tycoon 2",
 		"C:\\Program Files\\Atari\\RollerCoaster Tycoon 2",
 		"C:\\Program Files (x86)\\Atari\\RollerCoaster Tycoon 2",
-		"C:\\GOG Games\\RollerCoaster Tycoon 2 Triple Thrill Pack"
+		"C:\\GOG Games\\RollerCoaster Tycoon 2 Triple Thrill Pack",
+		gExePath
 	};
 
 	for (i = 0; i < countof(searchLocations); i++) {

src/drawing/sprite.c

@@ -22,6 +22,8 @@
 #include "../common.h"
 #include "../sprites.h"
 #include "drawing.h"
+#include "../platform/platform.h"
+#include "../openrct2.h"
 
 typedef struct {
 	uint32 num_entries;
@@ -90,7 +92,9 @@ int gfx_load_g2()
 	FILE *file;
 	unsigned int i;
 
-	file = fopen("data/g2.dat", "rb");
+	char path[MAX_PATH];
+	sprintf(path, "%s%cdata%cg2.dat", gExePath, platform_get_path_separator(), platform_get_path_separator());
+	file = fopen(path, "rb");
 	if (file != NULL) {
 		if (fread(&g2.header, 8, 1, file) == 1) {
 			// Read element headers

src/localisation/language.c

@@ -22,6 +22,7 @@
 #include "../object.h"
 #include "../util/util.h"
 #include "localisation.h"
+#include "../openrct2.h"
 
 typedef struct {
 	int id;
@@ -112,21 +113,21 @@ const char *language_get_string(rct_string_id id)
 
 int language_open(int id)
 {
-	static const char *languagePath = "data/language/%s.txt";
-	char filename[_MAX_PATH];
+	static const char *languagePath = "%s/data/language/%s.txt";
+	char filename[MAX_PATH];
 
 	language_close_all();
 	if (id == LANGUAGE_UNDEFINED)
 		return 1;
 
 	if (id != LANGUAGE_ENGLISH_UK) {
-		sprintf(filename, languagePath, language_filenames[LANGUAGE_ENGLISH_UK]);
+		sprintf(filename, languagePath, gExePath, language_filenames[LANGUAGE_ENGLISH_UK]);
 		if (language_open_file(filename, &_languageFallback)) {
 			_languageFallback.id = LANGUAGE_ENGLISH_UK;
 		}
 	}
 
-	sprintf(filename, languagePath, language_filenames[id]);
+	sprintf(filename, languagePath, gExePath, language_filenames[id]);
 	if (language_open_file(filename, &_languageCurrent)) {
 		_languageCurrent.id = id;
 		gCurrentLanguage = id;

src/openrct2.c

@@ -33,6 +33,7 @@
 
 int gOpenRCT2StartupAction = STARTUP_ACTION_TITLE;
 char gOpenRCT2StartupActionPath[512] = { 0 };
+char gExePath[MAX_PATH];
 
 // This should probably be changed later and allow a custom selection of things to initialise like SDL_INIT
 bool gOpenRCT2Headless = false;
@@ -99,6 +100,23 @@ static void openrct2_copy_files_over(const char *originalDirectory, const char *
 	platform_enumerate_directories_end(fileEnumHandle);
 }
 
+static void openrct2_set_exe_path()
+{
+	char exePath[MAX_PATH];
+	char tempPath[MAX_PATH];
+	char *exeDelimiter;
+	int pathEnd;
+	int exeDelimiterIndex;
+
+	GetModuleFileName(NULL, exePath, MAX_PATH);
+	exeDelimiter = strrchr(exePath, platform_get_path_separator());
+	exeDelimiterIndex = (int)(exeDelimiter - exePath);
+	pathEnd = strlen(exePath) - (strlen(exePath) - exeDelimiterIndex);
+	strncpy(tempPath, exePath, pathEnd);
+	tempPath[pathEnd] = '\0';
+	_fullpath(gExePath, tempPath, strlen(tempPath));
+}
+
 /**
  * Copy saved games and landscapes to user directory
  */
@@ -123,6 +141,8 @@ bool openrct2_initialise()
 		return false;
 	}
 
+	openrct2_set_exe_path();
+
 	config_set_defaults();
 	if (!config_open_default()) {
 		if (!config_find_or_browse_install_directory()) {

src/openrct2.h

@@ -32,6 +32,7 @@ enum {
 
 extern int gOpenRCT2StartupAction;
 extern char gOpenRCT2StartupActionPath[512];
+extern char gExePath[MAX_PATH];
 extern bool gOpenRCT2Headless;
 extern bool gOpenRCT2ShowChangelog;
 

src/rct2.h

@@ -106,6 +106,9 @@ typedef fixed32_1dp money32;
 
 #define MONEY_FREE						MONEY(0,00)
 #define MONEY32_UNDEFINED				((money32)0x80000000)
+#ifndef MAX_PATH
+#define MAX_PATH 260
+#endif
 
 typedef void (EMPTY_ARGS_VOID_POINTER)();
 typedef unsigned short rct_string_id;

src/title.c

@@ -325,7 +325,7 @@ static void title_do_next_script_opcode()
 			} while (*(_currentScript - 1) != 0);
 
 			// Construct full relative path
-			sprintf(path, "data%ctitle%c%s", platform_get_path_separator(), platform_get_path_separator(), filename);
+			sprintf(path, "%s%cData%ctitle%c%s", gExePath, platform_get_path_separator(), platform_get_path_separator(), platform_get_path_separator(), filename);
 			if (title_load_park(path)) {
 				_scriptNoLoadsSinceRestart = 0;
 			} else {
@@ -491,8 +491,10 @@ static uint8 *title_script_load()
 	FILE *file;
 	char parts[3 * 32], *token, *part1, *part2, *src;
 
-	char path[] = "data/title/script.txt";
-
+	char path[MAX_PATH];
+	char filePath[] = "data/title/script.txt";
+	
+	sprintf(path, "%s%c%s", gExePath, platform_get_path_separator(), filePath);
 	log_verbose("loading title script, %s", path);
 	file = fopen(path, "r");
 	if (file == NULL) {

src/windows/changelog.c

@@ -7,6 +7,8 @@
 #include "../world/map.h"
 #include "../world/footpath.h"
 #include "../util/util.h"
+#include "../openrct2.h"
+#include "../platform/platform.h"
 
 enum {
 	WIDX_BACKGROUND,
@@ -220,7 +222,9 @@ static void window_changelog_scrollpaint()
 static bool window_changelog_read_file()
 {
 	window_changelog_dispose_file();
-	if (!readentirefile("changelog.txt", &_changelogText, &_changelogTextSize)) {
+	char path[MAX_PATH];
+	sprintf(path, "%s%cchangelog.txt", gExePath, platform_get_path_separator());
+	if (!readentirefile(path, &_changelogText, &_changelogTextSize)) {
 		log_error("Unable to read changelog.txt");
 		return false;
 	}