picturetask.cpp

3D游戏展示程序

//*********************************************
// 
//  描述: 特效任务(图片, 数字)
//
//*********************************************

#include "PictureTask.h"
#include "Common.h"

//---------------------------------------------------
// 位移图片(通用)
//---------------------------------------------------
CMoveToTask::CMoveToTask(DWORD htex, POINT ptStart, POINT ptEnd, int TotalCount /* = 30 */)
{
	m_hTexture = htex;
	m_ptPosition = ptStart;
	m_TotalCount = TotalCount;
	m_CurCount = 0;

	m_fOffsetX = (float)(ptEnd.x-ptStart.x)/m_TotalCount;
	m_fOffsetY = (float)(ptEnd.y-ptStart.y)/m_TotalCount;
}

CMoveToTask::~CMoveToTask()
{
}

void CMoveToTask::Update()
{
	POINT ptCurrent;
	ptCurrent.x = m_ptPosition.x + (int)(m_CurCount*m_fOffsetX);
	ptCurrent.y = m_ptPosition.y + (int)(m_CurCount*m_fOffsetY);
	if((timeGetTime()-m_dwLastTime) > m_dwDelay)
	{
		m_dwLastTime=timeGetTime();
		if(m_CurCount>=m_TotalCount)
		{
			m_bAutoDelete = true;
			EndMessage();
			return;
		}
		else
		{
			m_CurCount++;
		}
	}
}

void CMoveToTask::Render()
{
	POINT ptCurrent;
	ptCurrent.x = m_ptPosition.x + (int)(m_CurCount*m_fOffsetX);
	ptCurrent.y = m_ptPosition.y + (int)(m_CurCount*m_fOffsetY);
	::Render(m_hTexture, ptCurrent.x, ptCurrent.y);
}

//---------------------------------------------------
// 定点图片淡入淡出(通用)
//---------------------------------------------------
CAlphaTask::CAlphaTask(RECT rc, DWORD hTex, int Delay /* = 10 */)
{
	m_hTex = hTex;
	m_rc = rc;
	m_dwDelay = Delay;
	m_Alpha = 0;
	m_CurCount = 0;	
	m_TotalCount = 2;
	m_Step = 1;
}

CAlphaTask::~CAlphaTask()
{
}

void CAlphaTask::SetCurCount(int count)
{
	m_CurCount = count;
	if(m_CurCount%2)
	{
		m_Alpha = 255;
	}
	else
	{
		m_Alpha = 0;
	}
}

void CAlphaTask::SetTotalCount(int count)
{
	m_TotalCount = count;
}

void CAlphaTask::SetAlphaStep(int count)
{
	m_Step = count;
}

void CAlphaTask::Update()
{
	if(m_CurCount>=m_TotalCount)
	{
		m_bAutoDelete = true;
		EndMessage();
		return;
	}
	if(g_GlobalTime-m_dwLastTime>=m_dwDelay)
	{
		if(m_CurCount%2)
		{
			if(m_Alpha-m_Step>=0)
			{
				m_Alpha = m_Alpha-m_Step;
			}
			else
			{
				m_Alpha = 0;
				m_CurCount++;
			}
		}
		else
		{
			if(m_Alpha+m_Step<=255)
			{
				m_Alpha = m_Alpha+m_Step;
			}
			else
			{
				m_Alpha = 255;
				m_CurCount++;
			}
		}
		m_dwLastTime = g_GlobalTime;
	}
}

void CAlphaTask::Render()
{
	::Render(m_hTex, &m_rc, NULL, MakeARGB(m_Alpha, 255, 255, 255));
}