--- src/attractmanager.c.orig	2019-01-31 01:36:24.130902037 +0100
+++ src/attractmanager.c	2019-01-31 01:40:17.155922935 +0100
@@ -31,10 +31,29 @@
 
 static HiScore hiScore;
 
-#define PREF_FILE "noiz2sa.prf"
+#define PREF_FILE pref_file_path()
 #define DEFAULT_HISCORE 100000
 #define DEFAULT_SCENE_HISCORE 10000
 
+static const char* pref_file_path(void) {
+    static int initialized = 0;
+    char file_path[256] = { '\0', };
+
+    if (!initialized) {
+        const char *homedir = getenv("HOME");
+        if (homedir) {
+            strcat(file_path, homedir);
+            strcat(file_path, "/.noiz2sa.prf");
+        } else {
+            strcat(file_path, "/tmp/noiz2sa.prf");
+        }
+
+        initialized = 1;
+    }
+
+    return file_path;
+}
+
 static void initHiScore() {
   int i, j;
   for ( i=0 ; i<STAGE_NUM ; i++ ) {
--- src/barragemanager.cc.orig	2019-01-31 01:36:24.130902037 +0100
+++ src/barragemanager.cc	2019-01-31 01:39:10.135440056 +0100
@@ -35,7 +35,7 @@
 static Barrage *barrage[BARRAGE_MAX];
 
 static const char *BARRAGE_DIR_NAME[] = {
-  "zako", "middle", "boss"
+  "/usr/share/noiz2sa/zako", "/usr/share/noiz2sa/middle", "/usr/share/noiz2sa/boss"
 };
 
 static int readBulletMLFiles(const char *dirPath, Barrage brg[]) {
--- src/screen.c.orig	2019-01-31 01:36:24.130902037 +0100
+++ src/screen.c	2019-01-31 01:38:25.161781641 +0100
@@ -51,11 +51,11 @@
 static void loadSprites() {
   SDL_Surface *img;
   int i;
-  char name[32];
+  char name[256];
   color[0].r = 100; color[0].g = 0; color[0].b = 0;
   SDL_SetColors(video, color, 0, 1);
   for ( i=0 ; i<SPRITE_NUM ; i++ ) {
-    strcpy(name, "images/");
+    strcpy(name, "/usr/share/noiz2sa/images/");
     strcat(name, spriteFile[i]);
     img = SDL_LoadBMP(name);
     if ( img == NULL ) {
--- src/soundmanager.c.orig	2019-01-31 01:36:24.130902037 +0100
+++ src/soundmanager.c	2019-01-31 01:37:27.658031341 +0100
@@ -59,10 +59,10 @@
 
 static void loadSounds() {
   int i;
-  char name[32];
+  char name[256];
 
   for ( i=0 ; i<MUSIC_NUM ; i++ ) {
-    strcpy(name, "sounds/");
+    strcpy(name, "/usr/share/noiz2sa/sounds/");
     strcat(name, musicFileName[i]);
     if ( NULL == (music[i] = Mix_LoadMUS(name)) ) {
       fprintf(stderr, "Couldn't load: %s\n", name);
@@ -71,7 +71,7 @@
     }
   }
   for ( i=0 ; i<CHUNK_NUM ; i++ ) {
-    strcpy(name, "sounds/");
+    strcpy(name, "/usr/share/noiz2sa/sounds/");
     strcat(name, chunkFileName[i]);
     if ( NULL == (chunk[i] = Mix_LoadWAV(name)) ) {
       fprintf(stderr, "Couldn't load: %s\n", name);
--- src/foecommand.h.orig	2019-01-31 01:42:38.496935971 +0100
+++ src/foecommand.h	2019-01-31 01:42:53.833712232 +0100
@@ -36,10 +36,10 @@
   
   virtual void doChangeDirection(double d);
   virtual void doChangeSpeed(double s);
-  virtual void FoeCommand::doAccelX(double ax);
-  virtual void FoeCommand::doAccelY(double ay);
-  virtual double FoeCommand::getBulletSpeedX();
-  virtual double FoeCommand::getBulletSpeedY();
+  virtual void doAccelX(double ax);
+  virtual void doAccelY(double ay);
+  virtual double getBulletSpeedX();
+  virtual double getBulletSpeedY();
   
  private:
   struct foe *foe;