Spray Play

From OLPC
Revision as of 17:22, 30 March 2008 by Bjordan (talk | contribs) (Graphics)
Jump to: navigation, search
  english | 한국어 HowTo [ID# 121527]  +/-  


Spray Play
[[Image:|center]]
Status: Runs (slow) on XO
Version: unknown
Base: No
Source: [1]
l10n: missing
Contributors
Brian, Eric, and Greg Jordan


Spray Play is a Crossfire-like game in which players shoot objects in the middle of the playing area with small pellets to push it into their opponent's side.

Gameplay

Old concept of Spray Play's gameplay field

Spray Play is a 1 or 2 player competition game in which players attempt to bump objects into their opponent's score area.

Spray Play is an ideal social game for the XO--its fun, sound-enhanced and easy to understand gameplay begs on-lookers to "give it a shot". This sort of enthusiasm translates to learning when simple variables (speed, number of balls, object placement) may be easily easily modified in an application such as Develop.

As a player shoots game pieces towards the opposite side of the arena, they get a point. Currently, points are represented as stars at the top left and right of the screen. Ideally, the game would actually place game pieces in the player's corner, almost like a trophy. This could be made easier with Elements/Box2D, as we can just place/scale shapes there.

Graphics

Spray Play is, at its core, a physics-based game, so graphics are essential for player feedback.

Screenshot

Spray Play in-game with computer player

Characters

Spray Play currently uses XO character design (X below an O) for human and computer players. The XO Person is a rotate-able character that shoots object-propulsion "bullets" out of its head. TODO: The XO character should utilize the user's preferred colors from Sugar, and the computer player should be an XO laptop icon: SprayLaptopL.png

Shootable Objects

Objects are currently regular and irregular polygons on the playing field (see screenshot--the green object in the middle).

Playing Field

Spray Play's playing field


The playing field is a PNG image representing a rounded-edge rectangle. It is metal-themed and has grass around the outside.

TO DO, i.e., Additions to this image that would be nice:

  • Dimensions
    • Geometry dimensions of gray field area for simulation purposes
  • Crowd
    • Bleachers in corners?
    • Heads lining the walls, leaning onto play field

Sound

With the XO laptop's built in speakers and headphone capabilities, sound is an important consideration for Spray Play.

Music

Matt has composed a song for Spray Play.

Effects

Directionally-biased stereo sound files are used to differentiate which side the sound is emanating from (the player on the XO's left side, player on the XO's right...).

Balls make sounds as they are shot out (thwooop), hit walls, hit eachother (clink!), hit objects.

Based on feedback from the kid testing session at the Boston Game Jam 2007, sounds both made the game more fun to play and acted to attract friends of players to come try the game.

Code / Contribute!

Spray Play is being hosted at Google Code. The Spray Play SVN repository can be browsed online.

To contribute to Spray Play, contact Brian his gmail account, username bcjordan, and he will add you to the developer's list.

Eventually, Spray Play will be hosted at SourceForge, but their applications must be manually approved.