Add question about video opening

Update/&opening.txt

@@ -0,0 +1,44 @@
+void main()
+{
+}
+
+void OpeningQuestion()
+{
+	if (GetGlobalFlag(GVideoOpening) == 0) {
+		OutputLine(NULL, "オープニング動画は多少のネタバレ要素を含んでいますが、再生を有効にしますか？",
+			   NULL, "Video opening might contain minor spoilers. Do you want to enable it anyway?", Line_Normal);
+
+		char Item[2];
+
+		if (GetGlobalFlag(GLanguage) == 1) {
+			Item[0] = "Yes";
+			Item[1] = "No";
+		} else {
+			Item[0] = "はい";
+			Item[1] = "いいえ";
+		}
+
+		Select( 2, Item );
+
+		if (LoadValueFromLocalWork(SelectResult) == 0) {
+			SetGlobalFlag(GVideoOpening, 2);
+		} else {
+			SetGlobalFlag(GVideoOpening, 1);
+		}
+	}
+}
+
+void OpeningLaunch()
+{
+	if (GetGlobalFlag(GVideoOpening) >= 3) {
+		ModPlayMovie("mv01");
+	}
+}
+
+void OpeningStory()
+{
+	if (GetGlobalFlag(GVideoOpening) >= 2) {
+		SetGlobalFlag(GVideoOpening, 3);
+		ModPlayMovie("mv01");
+	}
+}

Update/flow.txt

@@ -1,4 +1,4 @@
-
+
 void main()
 {
 	SetValidityOfSaving( FALSE );
@@ -18,6 +18,8 @@ void BrandLogo()
 
 	SetGlobalFlag(GFlag_FirstPlay, 1);
 
+	ModCallScriptSection("&opening", "OpeningQuestion");
+
 	DrawBG( "07thlogo", 1000, TRUE );
 	Wait( 2000 );
 	DrawSceneWithMask( "mangagamer", "logomask", 0, 0, 1000 );
@@ -26,7 +28,7 @@ void BrandLogo()
 
 	DrawSceneWithMask( "black", "logomask", 0, 0, 1000 );
 
-	ModPlayMovie("mv01");
+	ModCallScriptSection("&opening", "OpeningLaunch");
 }
 
 void Title()

Update/onik_op.txt

@@ -544,7 +544,5 @@ void main()
 
 //return
 
-
-	SetValidityOfInput( TRUE );
-	ModPlayMovie("mv01");
+	ModCallScriptSection("&opening", "OpeningStory");
 }