Programming games

Programming games

Cannonball due. Drawing & printingexample.Acquiring video or sound

Homework: Catch up: completeprojects (rps, Bo, cb). Start video oraudio. Plan your project.

Cannonball extension

•You may consider adding sound tocannonball for your sound/video project.

•Can use

–coding or

–sound in frame

Flash terms

•Create .fla and .as files using Flashdevelopment environment. This isdevelopment time.

•Runtime (aka execution time)

–Test program using the developmentenvironment. This does create a .swf file.

–Publish creates .html file and .swf file

Development time

•Bring instances of movie clip symbols inLibrary to the Stage.

–Give instance names

–ActionScript refers to instances by name

•Can File/Print

–May not do what you want…

–I copy and paste code into Word orDreamweaver

Drawing & printing

•Adding content, namely a movie clipsymbol to Stage at runtime

–Various calculations

–Use Properties of symbol (right mouse click)to set up: Export for ActionScript

•Print during runtime

–Can set up to print several pages. Myexample just prints one page.

Demonstrate

•Drawing example

•Note: this is a ‘stub’ for a biggerapplication.

Features

•Create wall symbol. Change settings toExport for ActionScript.

•Set up handling for mouse click on board.

–One handler for 1st click and another for 2ndclick

–Use ev.localX and ev.localY to getcoordinates.

–Use Math.atan2(…) and Point.distance(…)

•Use PrintJob

Making your own video for Flashplayback

•Shoot video

•Upload to computer

•[Edit]

•Produce .flv

•Create Flash movie and test

•Publish Flash movie

–Upload .html, .swf, and all the .flv files to theserver

Initial steps

•Shoot (?) video

•Upload to computer

Producing .flv

•Just like images, there are differentencodings for videos.

–wmv, mov, avi, dv, ….

•Adobe Flash CS4 Media Encoder willaccept many different types and producean .flv file (an .flv version of the samevideo clip)

–Can set quality settings

•Tradeoff: size (space on server, loading time)versus quality

Start queue

•Creating the .flv file takes a while….

•You can do more than one encoding at a time.

–The name of each file is the same name, with filetype.flv

•Use the pre-set settings OR get into more detail

–Higher quality means larger files

Acquire video

•Find website with video (or audio)

•go to http://file2hd.com/

–Enter URL of site

–Check off agree to terms, filter (movies oraudio)

–click on get files

–be patient

–choose from list.

Sound

Two (at least) methods for incorporatingsound into Flash

•All coding: create Sound objects, setsource of sound, play. Can manipulatevolume, pan, etc. using Soundchannel.Also, register and handle events, includingwhen sound has been loaded.

•Frame: associate [start of] sound withframe.

Acquire sound

•Many types of sound. For coding method,need mp3

•Find on-line sound editors.

•Need to know location (URL) of soundfile(s).

Coding method

import flash.media.Sound;

import flash.net.URLRequest;

var urlname:String = "missle.mp3";

var requestsf:URLRequest = newURLRequest(urlname);

var msound:Sound = new Sound(requestsf);

// at appropriate place in the code

msound.play();

This file is locatedin the same folderon my computer. Itdoesn't have to be.

Frame method

•File/Import/Import to Library

–Select sound file(s).

•Click on appropriate frame in timeline

•In property panel, select Sound [file].

–You can select a set effect and/or edit thesound.

Cautions

•In either method, need to be aware thatsound lasts certain amount of time.

•Be careful about starting sound again andagain (unless that is what you want)

Examine source

•Sound added to frame

–Bo the barking dog

–consider for collapsing/exploding target

•Code

–Play sound as event handler for button click

–Play random choice of tune from [short] list.

•Note: pause, pan, volume features. These requireother objects.

Homework

•Decide on video or audio

–Create or acquire video clip(s)

–Create or acquire audio clips. Can use CommonLibrary / sounds.

–Keep in mind: this is a short assignment.

–You can incorporate sound or video into your finalproject.

•Think about what you want to do for your project

–Check with me AND make proposal to blog.