【正文】 ameMain::m_fGridSize=。constintCGameMain::m_iLevelData1[GRID_COUNT][GRID_COUNT]={{0,0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0,0},{0,0,0,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,0,0,0},{0,0,0,RIGID_BLOCK,0,0,0,0,RIGID_BLOCK,0,0,0},{0,0,0,RIGID_BLOCK,0,0,0,0,RIGID_BLOCK,0,0,0},{0,0,0,RIGID_BLOCK,0,0,0,0,BLACK_HOLE,0,0,0},{0,0,0,0,0,0,0,GOLF_EXIT,RIGID_BLOCK,0,0,0},{0,0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0,0}}。constintCGameMain::m_iLevelData2[GRID_COUNT][GRID_COUNT]={{0,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,0,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,0,0,0,0,0,0,0,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,0,0,0,0,0,0,0,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,0,0,0,0,0,0,0,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,0,0,0,0,0,0,0,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,0,0,0,0,0,0,0,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,0,0,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,0,0,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,0,0,0,0,RIGID_BLOCK,0,0,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,0,0,0,0,0,GOLF_EXIT,RIGID_BLOCK,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,0,0,0,0,0,0,0,0,0},{0,RIGID_BLOCK,0,0,0,0,0,0,0,0,RIGID_BLOCK,0},{0,RIGID_BLOCK,0,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,0,RIGID_BLOCK,0}}。constintCGameMain::m_iLevelData3[GRID_COUNT][GRID_COUNT]={{0,0,0,0,0,0,0,0,RIGID_BLOCK,RIGID_BLOCK,0,0},{0,0,RIGID_BLOCK,RIGID_BLOCK,RIGID_BLOCK,0,0,0,0,0,0,RIGID_BLOCK},{RIGID_BLOCK,0,0,0,0,0,0,0,0,0,0,RIGID_BLOCK},{0,0,0,0,0,0,0,0,0,0,0,RIGID_BLOCK},{0,0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,GOLF_EXIT,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,RIGID_BLOCK,RIGID_BLOCK,0,0,0},{0,0,0,0,0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,RIGID_BLOCK,0},{0,0,0,RIGID_BLOCK,0,0,0,0,0,0,RIGID_BLOCK,0},{0,0,0,0,BLACK_HOLE,RIGID_BLOCK,0,0,0,0,0,0},{0,0,0,0,0,0,0,0,0,0,0,0}}。二維數(shù)組中0表示該位置不創(chuàng)建精靈，否則根據(jù)不同的值創(chuàng)建不同精靈，RIGID_BLOCK（值為1）表示創(chuàng)建一個(gè)方塊精靈，BLACK_HOLE（值為2）表示創(chuàng)建一個(gè)黑洞精靈，GOLF_EXIT（值為3）表示創(chuàng)建一個(gè)出口精靈。4）進(jìn)入GameInit函數(shù)里面，將球的運(yùn)動(dòng)狀態(tài)初始化為靜止，添加下面代碼：m_iMoveState=0。游戲初始化的時(shí)候，首先我們需要將前邊添加的精靈全部刪除掉，因此需要自定義的創(chuàng)建清除所有精靈函數(shù)ClearAllSprite()來(lái)實(shí)現(xiàn)這個(gè)功能。1）：voidClearAllSprite()。2）：voidCGameMain::ClearAllSprite(){}3）再使用3個(gè)循環(huán)，分別將上一關(guān)卡創(chuàng)建的3種精靈刪除掉。在上邊定義的函數(shù)中添加如下代碼：intiLoop=0。for（iLoop=0。iLoop()。iLoop++){m_vRigidBlock[iLoop]DeleteSprite()。}for（iLoop=0。iLoop()。iLoop++){m_vBlackHole[iLoop]DeleteSprite()。}for（iLoop=0。iLoop()。iLoop++){m_vGolfExit[iLoop]DeleteSprite()。}其中m_vRigidBlock、m_vBlackHole、m_vGolfExit是存儲(chǔ)三種精靈的向量數(shù)組，每一個(gè)循環(huán)都遍歷一遍向量數(shù)組并調(diào)用數(shù)組中每個(gè)精靈的DeleteSprite函數(shù)即可。()、()、()表示每種精靈的總數(shù)。4）最后在GameInit()中添加調(diào)用此函數(shù)的代碼：ClearAllSprite()。在GameInit()中，我們也需要對(duì)關(guān)卡進(jìn)行選擇初始化。因此我們需要自定義一個(gè)初始化關(guān)卡函數(shù)InitLevel()來(lái)實(shí)現(xiàn)這個(gè)功能。1）：voidInitLevel()。2）：voidCGameMain::InitLevel(){}3）初始化關(guān)卡，要根據(jù)當(dāng)前關(guān)卡，選擇關(guān)卡的數(shù)據(jù)，即將代表關(guān)卡的二維數(shù)組中的數(shù)據(jù)拷貝到m_iGridData中，同時(shí)設(shè)置控制球在每個(gè)數(shù)組中的起始位置。首先把需要的數(shù)據(jù)初始化為0，代碼如下：//總數(shù)置0，重新創(chuàng)建m_iRigidBlockCount=0。m_iBlackHoleCount=0。m_iGolfExitCount=0。4）選擇關(guān)卡我們使用了switchcase結(jié)構(gòu)，程序通過(guò)判斷switch中的參數(shù)進(jìn)入到不同的case中去，每個(gè)case就是一種情況的實(shí)現(xiàn)。代碼如下：//根據(jù)當(dāng)前關(guān)卡，選擇關(guān)卡數(shù)據(jù)switch（m_iCurLevel){case2:{m_iControlStartX=5。m_iControlStartY=9。memcpy（m_iGridData,m_iLevelData2,sizeof(int)*GRID_COUNT*GRID_COUNT)。}break。case3:{m_iControlStartX=3。m_iControlStartY=6。memcpy（m_iGridData,m_iLevelData3,sizeof(int)*GRID_COUNT*GRID_COUNT)。}break。//Level1或者g_iCurLevel錯(cuò)誤case1:default:{m_iControlStartX=5。m_iControlStartY=6。memcpy（m_iGridData,m_iLevelData1,sizeof(int)*GRID_COUNT*GRID_COUNT)。}break。}。memcpy函數(shù)作用是從源src所指的內(nèi)存地址的起始位置開始拷貝n個(gè)字節(jié)到目標(biāo)dest所指的內(nèi)存地址的起始位置中。因?yàn)槎S數(shù)組在內(nèi)存中的存放方式是連續(xù)的，因此我們將源地址拷貝給m_iGridData的起始地址之后，系統(tǒng)后自動(dòng)根據(jù)m_iGridData的下標(biāo)來(lái)找到正確的值。5）最后在GameInit()中添加調(diào)用此函數(shù)的代碼：InitLevel()。至此，本實(shí)驗(yàn)結(jié)束。實(shí)驗(yàn)三初始化游戲精靈【實(shí)驗(yàn)內(nèi)容】步驟一、創(chuàng)建精靈步驟二、初始化精靈位置【實(shí)驗(yàn)思路】遍歷二維數(shù)組m_iGridData，根據(jù)數(shù)組值生成對(duì)應(yīng)的精靈實(shí)例：值為0的時(shí)候不用創(chuàng)建，需要?jiǎng)?chuàng)建的精靈名字前綴為(按照宏定義的1,2,3順序)：RigidBlock,BlackHole,GolfExit。每創(chuàng)建一種精靈，將其總數(shù)加1：m_iRigidBlockCount,m_iBlackHoleCount，m_iGolfExitCount?！緦?shí)驗(yàn)指導(dǎo)】CGameMain類中添加下面成員變量的聲明：CSprite*m_pControlBall。//控制球精靈CSprite*m_pGolfArrow。//指示箭頭精靈：m_pControlBall=newCSprite(“ControlBall“)。m_pGolfArrow=newCSprite(“GolfArrow“)。創(chuàng)建精靈之后需要將精靈移到特定位置，因此我們需要定義一個(gè)自定義的函數(shù)MoveSpriteToBlock來(lái)實(shí)現(xiàn)這個(gè)功能。6）：voidMoveSpriteToBlock（CSprite*tmpSprite,constintiIndexX,constintiIndexY)。7）：voidCGameMain::MoveSpriteToBlock（CSprite*tmpSprite,constintiIndexX,constintiIndexY){}8）傳入該函數(shù)的是精靈實(shí)體以及x，y坐標(biāo)參數(shù)。再通過(guò)SetSpritePosition函數(shù)設(shè)置精靈位置，在該函數(shù)里面添加如下代碼：floatfPosX=m_fGridStartX+iIndexX*m_fGridSize。floatfPosY=m_fGridStartY+iIndexY*m_fGridSize。tmpSpriteSetSpritePosition(fPosX,fPosY)。這里定義一個(gè)函數(shù)CreateAllSprite()來(lái)創(chuàng)建控制球、方塊精靈、出口精靈和黑洞精靈。然后在函數(shù)內(nèi)部添加代碼創(chuàng)建精靈。原理是通過(guò)兩個(gè)for循環(huán)來(lái)，判斷m_iGridData的值，如果為0，則不創(chuàng)建，如果為RIGID_BLOCK則創(chuàng)建一個(gè)方塊精靈，為BLACK_HOLE則創(chuàng)建一個(gè)黑洞精靈，為GOLF_EXIT則創(chuàng)建一個(gè)出口精靈。由于我們預(yù)先在地圖中擺放了三個(gè)模板精靈，因此只需要使用CloneSprite函數(shù)即可創(chuàng)建新的精靈。然后再調(diào)用MoveSpriteToBlock函數(shù)將精靈移動(dòng)到指定位置。最后每創(chuàng)建一個(gè)實(shí)現(xiàn)精靈，將它添加到相應(yīng)的精靈向量數(shù)組中。1）：voidCreateAllSprite()。2）：voidCGameMain::CreateAllSprite(){}3）在定義汗的函數(shù)中添加變量聲明：intiLoopX=0,iLoopY=0。CSprite*tmpSprite。char*szName=NULL。4）實(shí)現(xiàn)兩個(gè)for循環(huán)：for（iLoopY=0。iLoopYGRID_COUNT。iLoopY++){for（intiLoopX=0。iLoopXGRID_COUNT。iLoopX++){}}5）在里面的循環(huán)添加判斷代碼：如果是0，則不創(chuàng)建精靈，continue表示跳出本次循環(huán)，繼續(xù)下一個(gè)循環(huán)。if（0==m_iGridData[iLoopY][iLoopX])continue。如果是方塊，則創(chuàng)建方塊精靈：if（RIGID_BLOCK==m_iGridData[iLoopY][iLoopX]){szName=CSystem::MakeSpriteName(“RigidBlock“,m_iRigidBlockCount)。tmpSprite=newCSprite(szName)。tmpSpriteCloneSprite(“RigidBlockTemplate“)。MoveSpriteToBlock（tmpSprite,iLoopX,iLoopY)。(tmpSprite)。m_iRigidBlockCount++。}如果是黑洞，則創(chuàng)建黑洞精靈：elseif（BLACK_HOLE==m_iGridData[iLoopY][iLoopX]){szName=CSystem::MakeSpriteName（“BlackHole“,m_iBlackHoleCount)。tmpSprite=newCSprite(szName)。tmpSpriteCloneSprite(“BlackHoleTemplate“)。MoveSpriteToBlock（tmpSprite,iLoopX,iLoopY)。(tm