Cocos2d-x 3.2 大富翁游戏项目开发-第八部分 角色按路径行走(2)

void RicherGameController::moveOneStep()
{
		//获取下一步行列，计算同当前行列的差值
		nextRow = _rowVector[stepHasGone+1];	
                nextCol = _colVector[stepHasGone+1];
		int distanceRow = nextRow - currentRow;	
                int distanceCol = nextCol - currentCol;

		MoveBy* moveBy;	Repeat* repeate;	Action* spawnAction;
		//根据行列的差值，创建上下左右相应的动作，包括移动和行走的动画

		if(distanceRow >0)//up
		{
			moveBy = MoveBy::create(playerGoTotalTime,ccp(0,tiledHeight)); 
			repeate = Repeat::create(up,1);
		}
		if(distanceRow <0)//down
		{
			moveBy = MoveBy::create(playerGoTotalTime,ccp(0,-tiledHeight)); 
			repeate = Repeat::create(down,1);
		}
		if(distanceCol >0)//right
		{
			moveBy = MoveBy::create(playerGoTotalTime,ccp(tiledWidth,0)); 
			repeate = Repeat::create(right,1);
		}
		if(distanceCol <0)//left
		{
			moveBy = MoveBy::create(playerGoTotalTime,ccp(-tiledWidth,0)); 
			repeate = Repeat::create(left,1);
		}
		//创建同步动画，当移动完毕，执行callEndGoFunc方法，进而调用endGo（）方法
		spawnAction = Sequence::create(Spawn::create(moveBy,repeate,NULL),callEndGoFunc,NULL);
		_richerPlayer->runAction(spawnAction);
}

void RicherGameController::endGo()
{
	stepHasGone++;//走完一步后，已走步数加1
	if(stepHasGone >= stepsCount) //如果已走步数大于等于总步数，返回
	{
		return;
	}
	currentRow = nextRow;
	currentCol = nextCol;//当前行列赋值为下一行列
	moveOneStep();//开始下一步的移动
	log(go end);
}

经过测试发现，角色会来回走动，走过去了还走回来，所以我们需要给角色类Player添加 表示角色从哪个位置过来的属性

修改RouteNavigation类的getPath()方法

void RouteNavigation::getPath(RicherPlayer* player,int stepsCount,bool** canPassGrid,int gridRowsCount,int gridColsCount)
{…………………………..
	int rowtemp = player->getComeFromeRow();
	int coltemp = player->getComeFromCol();
	if(rowtemp <=-1 || coltemp <= -1)
	{
		player->setComeFromCol(currentCol);
		player->setComeFromeRow(currentRow);
	}
	//设置角色从哪里来的位置为false ，以表示不可通过
	canPassGrid_copy[player->getComeFromeRow()][player->getComeFromCol()] = false;
………………………..
	//获取完路径后，设置角色的来自的位置
	player->setComeFromCol(pathCols_vector[pathCols_vector.size()-2]);
	player->setComeFromeRow(pathRow_vector[pathRow_vector.size()-2]);
}

测试发现角色终于可以正常走动了

流程图如下

目前为止，代码写的相对较多了，有必要重新整理一下，下部分，我们进行一下代码优化。便于后期的继续开发。