Mobile GameDevelopment using Flash Lite

Game Porting in Flash Lite 1.1 Porting of game Balancing Mathai by Csharks by Juwal Bose

Versions of Flash Lite

1.x – Most wide spread

2.x – Most capable

3.0 – For upcoming hand sets

Limitations

Screen resolution

Color depth

Processor power

Memory

Sound reproduction

Flash version support

Key pad layout / Controls

Our scenerio

Already have the game in flash AS1/2

We will build for Flash lite 1.1

Nokia S60 – 176 x 208

Case with Flash Lite 2.X

We can directly port our code

Only Graphics optimizations needed

Less number of devices

Require higher version of flash IDE

Tools Required

Flash – mx2004, v8, cs3

Adobe Device Central CS3

Flash Lite 1.1 CDK

Flash Lite Device

Graphics Optimizations

Reduce the color palette

Reduce the size – 176 x 208

Optimize graphics in flash

Remove gradients used

Remove transparency used

Balance between vector and raster

Use PNG raster graphics

Gradients

Optimizing code

Use small variable names

Reuse variables

Reduce nested loops

Flash lite 1.1 is optimized

Design changes

Static 5 levels

Pre animated graphics

Left/Right arrow controls with enter key

Extensive use of movie clips and an invisible button

The frames

6 frames labeled logo, menu, help, game, over and win

The frames cont…

Invisible button is placed out side the scene to take key presses

The frames cont…

The frame code on frame 1

The frames cont… Button code on help frame on (keyPress "<Enter>") { tellTarget ("/") { gotoAndPlay("menu"); } } Button code on game over and game win frames on (keyPress "<Enter>") { tellTarget ("/") { gotoAndPlay("game"); } }

The menu

A movie clip with 3 frames (labels s,h,c) is present with an invisible button having the code

The game frame

Dynamic text box with variable name ‘level’

Mathai animation movie clip mathai

Hand movie clips hL and hR

A go movieclip for starting

The invisible button

Game frame code lSTime = dT=lLTime=o; level = 1; mF = 20; sF = 10; dR = ""; dN = "n"; interval = 10000; tellTarget ("go") { gotoAndStop(1); } tellTarget ("mathai") { gotoAndStop(1); } tellTarget ("mathai/clip") { gotoAndStop(10); } // stop();

Mathai Clip frame code

Button code on (keyPress "<Enter>") { if (/:dN eq "n") { /:dN = "y"; tellTarget ("go") { gotoAndStop(2); } if (random(2) == 0 && /:dR ne "l") { tellTarget ("mathai/clip") { gotoAndPlay(_totalframes-_currentframe); /:dR = "l"; } } else { if (/:dR ne "r") { /:dR = "r"; } } tellTarget ("mathai/clip") { play(); } // /:lSTime = getTimer(); // } }

Button code continued on (keyPress "<Left>") { if (/:dN eq "y") { tellTarget ("hL") { gotoAndPlay(2); } if (/:dR eq "r") { fscommand2("StartVibrate", 1000, 0, 0); //change /:dR = "l"; tellTarget ("mathai/clip") { gotoAndPlay(_totalframes-_currentframe); } } else { tellTarget ("mathai/clip") { gotoAndPlay(_currentframe+1); } } } }

Details