Chris Danford
90 lines
1.7 KiB
C++
90 lines
1.7 KiB
C++
#include "stdafx.h"
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/*
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-----------------------------------------------------------------------------
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File: FocusingSprite.h
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Desc: A graphic that appears to blur and come into focus.
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Copyright (c) 2001-2002 by the person(s) listed below. All rights reserved.
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-----------------------------------------------------------------------------
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*/
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#include "FocusingSprite.h"
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#include "RageUtil.h"
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#define BLUR_DISTANCE 50
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#define BLUR_TWEEN_TIME 0.5f
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FocusingSprite::FocusingSprite()
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{
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for( int i=0; i<3; i++ )
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{
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this->AddSubActor( &m_sprites[i] );
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}
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m_fPercentBlurred = 1.0f;
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m_BlurState = invisible;
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}
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void FocusingSprite::Update( float fDeltaTime )
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{
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ActorFrame::Update( fDeltaTime );
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switch( m_BlurState )
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{
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case focused:
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break;
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case focusing:
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m_fPercentBlurred -= fDeltaTime / BLUR_TWEEN_TIME;
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if( m_fPercentBlurred <= 0.0f ) {
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m_fPercentBlurred = 0.0f;
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m_BlurState = focused;
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}
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break;
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case invisible:
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break;
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case blurring:
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m_fPercentBlurred += fDeltaTime / BLUR_TWEEN_TIME;
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if( m_fPercentBlurred >= 1.0f ) {
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m_fPercentBlurred = 1.0f;
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m_BlurState = invisible;
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}
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break;
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}
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}
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void FocusingSprite::DrawPrimitives()
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{
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if( m_BlurState != invisible )
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{
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SetDiffuseColor( D3DXCOLOR(1,1,1,0.5f-m_fPercentBlurred/2) );
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m_sprites[0].SetXY( m_fPercentBlurred*BLUR_DISTANCE*2, m_fPercentBlurred*BLUR_DISTANCE );
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m_sprites[1].SetXY( -m_fPercentBlurred*BLUR_DISTANCE*2, -m_fPercentBlurred*BLUR_DISTANCE );
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m_sprites[2].SetXY( 0, 0 );
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ActorFrame::DrawPrimitives();
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}
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}
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void FocusingSprite::StartFocusing()
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{
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m_fPercentBlurred = 1;
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m_BlurState = focusing;
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}
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void FocusingSprite::StartBlurring()
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{
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m_fPercentBlurred = 0;
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m_BlurState = blurring;
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}
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