Merge branch 'jvlomax-jvlomax-settings'

src/rct2.c

@@ -23,6 +23,7 @@
 #include <string.h>
 #include <setjmp.h>
 #include <windows.h>
+#include <ShlObj.h>
 #include <SDL.h>
 #include "addresses.h"
 #include "climate.h"
@@ -42,13 +43,13 @@
 #include "title.h"
 #include "track.h"
 #include "viewport.h"
+#include "settings.h"
 
-//Path to load data files from. Temporary solution.
-#define GAME_PATH "C:\\Program Files (x86)\\Infogrames\\RollerCoaster Tycoon 2"
 
 void rct2_init_directories();
 void rct2_startup_checks();
 
+
 static void rct2_init();
 static void rct2_loop();
 static void rct2_update();
@@ -68,7 +69,8 @@ __declspec(dllexport) int StartOpenRCT(HINSTANCE hInstance, HINSTANCE hPrevInsta
 	RCT2_GLOBAL(RCT2_ADDRESS_CMDLINE, LPSTR) = lpCmdLine;
 	get_system_info();
 	RCT2_CALLPROC(0x0040502E); // get_dsound_devices()
-
+	
+	settings_init();
 	rct2_init();
 	rct2_loop();
 	osinterface_free();
@@ -147,7 +149,8 @@ void rct2_init()
 // rct2: 0x00683499
 void rct2_init_directories()
 {
-	strcpy(RCT2_ADDRESS(RCT2_ADDRESS_APP_PATH, char), GAME_PATH);
+
+	strcpy(RCT2_ADDRESS(RCT2_ADDRESS_APP_PATH, char), settings.GAME_PATH);
 
 	strcpy(RCT2_ADDRESS(RCT2_ADDRESS_APP_PATH_SLASH, char), RCT2_ADDRESS(RCT2_ADDRESS_APP_PATH, char));
 	strcat(RCT2_ADDRESS(RCT2_ADDRESS_APP_PATH_SLASH, char), "\\");

src/settings.c

@@ -0,0 +1,167 @@
+/*****************************************************************************
+* Copyright (c) 2014 Ted John
+* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
+*
+* This file is part of OpenRCT2.
+*
+* OpenRCT2 is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*****************************************************************************/
+
+#include <windows.h>
+#include <ShlObj.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include "settings.h"
+#include "screenshot.h"
+
+settings_t settings;
+
+
+/**
+ * Initilize the settings.
+ * It checks if the openRCT2 folder exists and creates it if it does not
+ * parsing of the config file is done in settings_parse_settings
+ */
+void settings_init(){
+	
+	TCHAR path[MAX_PATH];
+	FILE* fp;
+
+	if (SUCCEEDED(SHGetFolderPath(NULL, CSIDL_PERSONAL | CSIDL_FLAG_CREATE, NULL, 0, path))){ //find home folder
+		strcat(path, "\\OpenRCT2");
+		DWORD dwAttrib = GetFileAttributes(path);
+		if (!(dwAttrib != INVALID_FILE_ATTRIBUTES && dwAttrib & FILE_ATTRIBUTE_DIRECTORY)){ //folder does not exist
+			if (!CreateDirectory(path, NULL)){
+				return NULL; //error createing path
+			}
+		}
+		strcat(path, "\\config.ini");
+		fp = fopen(path, "r");
+		if (!fp){
+			settings_create_default(path);
+			fp = fopen(path, "r");
+			if (!fp){
+				return NULL;
+			}
+		}
+
+		settings_parse_settings(fp);
+		
+	}
+}
+
+/**
+ * Create a new default settings file.
+ * This should be created from some other resource when openRCT2 grows
+ * @param path The aboslute path of the config file
+ */
+void settings_create_default(char *path){
+	FILE* fp = fopen(path, "w");
+	fprintf(fp, "GAME_PATH = C:\\GOG Games\\RollerCoaster Tycoon 2 Triple Thrill Pack\n");
+	fprintf(fp, "SCREENSHOT_AS_PNG = TRUE\n");
+	fclose(fp);
+}
+
+/**
+ * Parse settings and set the game veriables
+ * @param fp file pointer to the settings file
+ */
+void settings_parse_settings(FILE *fp){
+	int c = NULL, pos = 0;
+	char *setting;
+	char *value;
+	setting = (char *)malloc(128);
+	value = (char *)malloc(128);
+	
+	int size = 256;
+	
+	while (settings_get_line(fp, setting, value) > 0){
+
+		if (strcmp(setting, "GAME_PATH") == 0){
+			strcpy(settings.GAME_PATH, value); //TODO: change to copy correct amount of bytes
+		}
+		else if(strcmp(setting, "SCREENSHOT_AS_PNG") == 0){
+		
+			if (value == '1'){
+				settings.SCREENSHOT_AS_PNG = 1;
+			}
+			else{
+				settings.SCREENSHOT_AS_PNG = 0;
+			}
+		}
+	}
+
+}
+
+/**
+ * Read one line in the settings file
+ * @param fp filepointer to the settings file
+ * @param setting pointer where to to store the setting
+ * @param value pointer to where to store the value 
+ * @return < 0 on error
+ */
+int settings_get_line(FILE *fp, char *setting, char *value){
+	long start = ftell(fp);
+	long end;
+	int c;
+	int pos = 0;
+	long size;
+	c = fgetc(fp);
+	if(c == EOF) return -1;
+	while (isalpha(c) || c == '_'){
+		c = fgetc(fp); //find size of setting
+		if (c == EOF) return -1;
+	}
+
+	end = ftell(fp);
+	size = end - start;
+	realloc(setting, size);
+	fseek(fp, start, SEEK_SET);
+	c = fgetc(fp);
+	while (isalpha(c) || c == '_'){
+		setting[pos] = (char)c;
+		pos++;
+		c = fgetc(fp);
+	}
+	setting[pos] = '\0';
+	while (c != '='){
+		if (c == EOF || c == '\n'){ // this is not a valid setting
+			return -1;
+		}
+		c = fgetc(fp);
+	}
+	c = fgetc(fp);
+	while (isspace(c)){
+		c = fgetc(fp);
+	}
+
+	start = ftell(fp);
+	while (c != '\n' && c!= EOF){
+		c = fgetc(fp);
+	}
+	end = ftell(fp);
+	size = end - start;
+	realloc(value, size);
+	fseek(fp, start - 1, SEEK_SET);
+	pos = 0;
+	c = fgetc(fp);
+	while (c != '\n' && c != EOF){
+		value[pos] = (char)c;
+		pos++;
+		c = fgetc(fp);
+	}
+	value[pos] = '\0';
+
+}

src/settings.h

@@ -0,0 +1,47 @@
+/*****************************************************************************
+* Copyright (c) 2014 Ted John, Peter Hill
+* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
+*
+* This file is part of OpenRCT2.
+*
+* OpenRCT2 is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*****************************************************************************/
+
+#ifndef _SETTINGS_H_
+#define _SETTINGS_H_
+
+#include <windows.h>
+#include <stdio.h>
+#include "rct2.h"
+
+
+void settings_parse_settings(FILE *fp);
+int settings_get_line(FILE *fp, char *setting, char *value);
+
+
+void settings_init();
+void settings_create_default(char *path);
+
+
+typedef struct settings{
+	uint8 SCREENSHOT_AS_PNG;
+	char GAME_PATH[MAX_PATH];
+
+} settings_t;
+
+extern settings_t settings;
+
+
+
+#endif