add foreground gameplay layer

2004-01-07 00:13:32 +00:00
parent 137b7b9a8a
commit 5ef57a474b
10 changed files with 220 additions and 55 deletions
@@ -0,0 +1,64 @@
+#include "global.h"
+#include "Foreground.h"
+#include "BGAnimation.h"
+#include "RageUtil.h"
+#include "IniFile.h"
+#include "GameState.h"
+
+Foreground::~Foreground()
+{
+	Unload();
+}
+
+void Foreground::Unload()
+{
+	for( unsigned i=0; i < m_BGAnimations.size(); ++i )
+		delete m_BGAnimations[i].m_bga;
+	m_BGAnimations.clear();
+}
+
+void Foreground::LoadFromSong( const Song *pSong )
+{
+	for( unsigned i=0; i<pSong->m_ForegroundChanges.size(); i++ )
+	{
+		const BackgroundChange &change = pSong->m_ForegroundChanges[i];
+		CString sBGName = change.m_sBGName;
+		
+		const CString sAniDir = pSong->GetSongDir()+sBGName;
+		if( !IsADirectory(sAniDir) )
+			RageException::Throw( "The song foreground BGA \"%s\" is not a directory", sAniDir.c_str() );
+
+		LoadedBGA bga;
+		bga.m_bga = new BGAnimation;
+		bga.m_bga->LoadFromAniDir( sAniDir );
+		bga.m_fStartBeat = change.m_fStartBeat;
+
+		const float fStartSecond = pSong->m_Timing.GetElapsedTimeFromBeat( bga.m_fStartBeat );
+		const float fStopSecond = fStartSecond + bga.m_bga->GetLengthSeconds();
+		bga.m_fStopBeat = pSong->m_Timing.GetBeatFromElapsedTime( fStopSecond );
+
+		bga.m_bga->SetHidden( true );
+
+		this->AddChild( bga.m_bga );
+		m_BGAnimations.push_back( bga );
+	}
+
+	this->SortByZ();
+}
+
+void Foreground::Update( float fDeltaTime )
+{
+	if( GAMESTATE->m_fMusicSeconds == GameState::MUSIC_SECONDS_INVALID )
+		return; /* hasn't been updated yet */
+
+	for( unsigned i=0; i < m_BGAnimations.size(); ++i )
+	{
+		LoadedBGA &bga = m_BGAnimations[i];
+
+		const bool Shown = bga.m_fStartBeat <= GAMESTATE->m_fSongBeat && GAMESTATE->m_fSongBeat <= bga.m_fStopBeat;
+		bga.m_bga->SetHidden( !Shown );
+		if( Shown )
+			bga.m_bga->Update( fDeltaTime );
+	}
+}
+