CSIT 441

After I choose to use Deep First Search, I make a model for my project. I want to make sure I have only one way between the entrance and the exit. So I thought what would be a tree, I randomly select a grid as a root node, starting from its depth at random search, offer a way to, until no way to go, take a step back and find another way, go to the corner and back to step back and change another one...Such a cycle, until completely no choice...Actually still back also.In the procedure is the following process (see the code in createMaze () function) :Randomly select a grid as a root node, pressing it into the stack.Then when the stack is not empty execute the following cycle:INTREE symbol of take out a grid, it is set to 1, and then will be out of the tree all of its neighbors in the grid pressure into the stack (random order), and the father of the neighbor grid points to the grid.Solve the two problems, the rest of the maze, display path, ball movement is relatively simple.

I had some issues on generating the maze before, I said I couldn't make the random maze every time. Finally I figured out. I have two solutions to make the random maze. First, I wanted to make a simple maze, but I always met some trouble. For example, If I assume that the entrance is top left and exit is bottom right, then I start form the entrance to the exit, pick one from the blue block randomly and go for it, then sign for passing.  Then if I randomly choose to go to the yellow point, I will have three choice for next step because I don't want to go back or have the same path only if I have choice.  But when I come to a died node, which means I can't go anymore, like the red point. I have to go back and find the green point. Then I popped the last point and make a pathlist which means the past points and n-1 is the green point.  However,  if this happened , a bug will happen, means that there is no path for the exit. So we have

I already finished the core part of my program, and I am working on the layout now. I use GUI to set the game layout. First, I create a package Maze, which is a tool for building the interface. So this is what I got now.

Maze generator The method that I used to generate the maze comes from a Java game design book. And this week, I am still working on how to make a random maze. I build a new method generate. I use a Boolean to mark the sell or square and use random generator to generate a direction. Then I will not visit the squares I marked. Then I still use random generator to generate a number which decide the direction. But here are a lot of situations, I already finished the cases when the  square is at top left, top right, bottom left and bottom right, which have only two direction. In addition, here are two other cases. One for the square at the first lines but the corner, which have four situations at four sides. For this case, I need to generator three different directions. And the last case is the square in the middle, which are all the squares except the outermost layer, so I have (height-2)*(width-2) squares. For this case, I have to generate 4 different directions obviously. Actually, wha

         I was planning to do a KENKEN problem solver but recently I changed my idea for the final project. I am doing the Random Maze Generator now. I am trying to get the Maze randomly and find the solution right away with DFS.          Firstly, I set the size of the maze, and set the first maze as matrix which are the height and the width. Then I got number of the squares are h*w. And I can generate the vertical and horizontal wall randomly according to signs. I need to make the unit square with a Boolean statement: this.notMarked = new boolean[this.height][this.width]; Actually my general idea of the maze generator is trying to take the walls away randomly. So I do need to judge the existence of the both vertical and horizontal walls. Constantly randomly choose one side wall, if it can be separated by the walls of the room which is not connected to each other, then pull down the wall. Then repeat the process until the entre and the exit, resulting in the maze.  And the key prob