Handling mouse input, Computer Graphics

When you set up your project, create the class as an "ACM Graphics Program", rather than a plain class. This will perform the necessary preparations for you to use mouse input in your program.

There are three main tasks that you need to consider when implementing this program:

1. Identifying the numerical values, boolean values, and graphical objects that you will need to use in your program and declaring the fields for them.

2. Initializing the fields above to reflect the initial game state and add the graphical objects to the canvas.

3. Responding to a mouse click from the player and performing the appropriate logic to execute their turn. any method in the class.

What fields do you need? First, think about what you need to store the state of the game.  We can identify three numerical values: the trough score, player 1's score, and player 2's score. Think about which primitive type would be best here. Are the scores fractional or
are they whole numbers?

Next, you need a way to keep track of which player's turn it is. Here are a couple strategies that you can think about: you could use an integer variable that keeps track of which player's turn it is. Or, since you only have two players, you could use a boolean value that indicates "whether or not it's player 1's turn" (or alternatively, player 2's turn).

Identifying the graphic objects should be fairly self-explanatory, based on the description above. Remember to make sure that the graphics at startup reflect the initial state of the game (the correct player should be displayed bold, for example, and the score labels should all be set to 0).

Task: Initializing the Fields

As in the other graphics programs you've seen, this initialization code can go in the run () method. Don't forget to initialize the variables that represent the game state as well as the graphical objects.

Task: Handling Mouse Input

The mouseClicked() method is where you will respond to the user clicking on one of the objects on your canvas. You need to determine which object was clicked (refer to the GUI examples shown in class) and execute the appropriate action by implementing the game rules described at the top of the assignment. Remember that you need to update both the numeric values that represent the game state as well as the labels on the screen.

Posted Date: 2/28/2013 6:35:02 AM | Location : United States

Related Discussions:- Handling mouse input, Assignment Help, Ask Question on Handling mouse input, Get Answer, Expert's Help, Handling mouse input Discussions

Write discussion on Handling mouse input
Your posts are moderated
Related Questions
What is a dot size and interdot distance? Dot size may be explained as the diameter of a single dot on the devices output. Dot size is also known as the Spot size.  Interdo

Application of Computer Aided Design There are several CAD software applications. Several of them along with their respective vendors are listed here: CAD Applications

What are the features found in CAD Features generally found in a CAD package involve: - 2D and 3D modelling - Wire frame - Library of parts that can be used in new dra

Scan line algorithm and seed fill algorithm Two basic approaches are followed in area filling on raster systems.  In the first approach overlap intervals for scan lines that cr

Softwares and Hardwares for Computer Animation The categories of both software as well as hardware needed to work on animation are now to be discussed. Computer animation can b

Advantages of Computer aided design  -   It is simpler to modify drawings  -   A library of parts can be kept  -   Ability to do automatic costings -   Ability to mod

Objectives  of Three dimensional transformations explain basic 3D transformations-translation, rotation, scaling, shear and reflections-applied to objects in space; ex

The development of CAD had little consequence on CNC initially because of the various abilities and file formats used through drawing and machining programs. Conversely, as Compute

What is resolution? Ans. The maximum number of points that can be shown without an overlap on a CRT is known as resolution.