PipeHandler.cs

This code defines a PipeHandler class that manages the behavior and properties of individual pipe pieces in the Unity game. The class is responsible for rotating pipe pieces, updating their connections with neighboring pipes, and handling user interaction.

The PipeHandler class utilizes a Dir enum to represent the four possible directions (UP, RIGHT, DOWN, LEFT) and a bool[] named IODirs to store the availability of input/output directions for a pipe. For example, if IODirs is [true, false, true, false], the pipe has available connections for UP and DOWN.

In the Start() method, the script initializes levelHandler and updates the neighboring PipeHandler references. The Update() method animates the rotation of the pipe if it’s rotated by the player.

The UpdateNeighbouringPipeHandlers() method updates the references to neighboring pipes based on the Position of the current pipe. The OnMouseDown() method is called when the pipe is clicked, rotating the pipe and setting it as the active tile. The RotatePiece() method rotates the pipe 90 degrees clockwise and updates its input/output directions and neighboring pipe connections.

The RotateIODirections() method updates the IODirs array by rotating the direction flags one step clockwise. The ProcessNearbyPipeChanges() method processes changes in the neighboring pipes after a rotation, updating the available sides for the current pipe and its neighbors. Lastly, the UpdateAvailableSides() method updates the Free flags (upFree, downFree, rightFree, leftFree) for each direction, indicating if the water can flow through that direction based on the connections with neighboring pipes.

1. What does the Pipe class represent and how is the pipeType used?

   It’s a class that represents different types of pipe tiles in the game. The pipeType variable in PipeHandler is used to store an instance of the Pipe class and is used to determine the appearance and behavior of the pipe object.

2. How does the speed variable affect the rotation animation of the pipe?

   The speed variable determines how quickly the pipe rotates during the rotation animation. A higher value for speed will result in a faster rotation, while a lower value will result in a slower rotation.

3. How are the upFree, downFree, rightFree, and leftFree variables used in the game?

   These boolean variables indicate whether the corresponding neighboring tiles (up, down, right, and left) are free for the flow to continue. They are updated in the UpdateAvailableSides method by checking the availability of the neighboring pipes in the specified direction, and are used to determine the flow of water/lava through the pipes.