The source code of the platformer game called "DynaCat" by nomnomapps. This game was released on Apple Store in 2012
Game trailer: http://tinyurl.com/DynaCatTrailer
Game level walk-throughs: http://tinyurl.com/DynaCatWalkthrough
In the heart of the game is the game engine - "XGame". It allows for easy creation of simple, platformer-type games. Also can be used for generic multi-platform apps with game-ified UI.
Engine features:
- Multi-platform. Built upon MonoGame (http://www.monogame.net/). Makes it possible to run on iOS, Android, Windows Phone, OS X, Windows
- XML based schema for level description
- support for "classes" of objects
<Class Id="clsBarrel">
<Block IsExploding="true" Edges="Stick">
<!-- destroy -->
<BoolTrigger Condition="this:BoomClose" EnterAction="this_setDestroy1.Start()" StayTriggered="false" Group="this_BoxBoomStates"/>
<SequenceSet Id="this_setDestroy1" InProgress="false">
<Do Action="this.SetEdges('None');this:Destroyed" />
<NumAnimation Target="this.Opacity" From="1" To="0" Duration="0.3" Autoreverse="false" RepeatCount="2"/>
<Do Action="this.Disable()"/>
</SequenceSet>
</Block>
</Class>- support for "includes" (one XML can "include" another)
- built-in types for sound effects, background music, spritesheets, fonts and other media
<Resources RootFolder="Sound">
<SoundFile Id="sfAirplane" Source="sfxAirplane"/>
</Resources>- built-in support for "hero" and "enimy"
- animations are done through "property animation" approach:
<NumAnimation Target="this_grpShowPoints.Opacity" From="1" To="0.5" RepeatCount="1" Duration="1" Fill="Hold" />- "sequences", "parallels", "conditions", "triggers" and "loop" provide ultimate flexibility and control over animations the game flow:
<ParallelSet RepeatCount="1">
<NumAnimation Target="this_grpShowPoints.Opacity" From="1" To="0.5" RepeatCount="1" Duration="1" Fill="Hold" />
<RandomSet RepeatCount="1" >
<NumAnimation Target="this_grpShowPoints.Y" From="0" To="-50" IsDelta="true" RepeatCount="1" Duration="1" Fill="Hold" />
<NumAnimation Target="this_grpShowPoints.Y" From="0" To="-40" IsDelta="true" RepeatCount="1" Duration="1" Fill="Hold" />
</RandomSet>
<RandomSet RepeatCount="1" >
<NumAnimation Target="this_grpShowPoints.X" From="-4" To="4" IsDelta="true" Autoreverse="true" RepeatCount="1.25" Duration="0.4" Fill="Hold" />
<NumAnimation Target="this_grpShowPoints.X" From="4" To="-4" IsDelta="true" Autoreverse="true" RepeatCount="1.25" Duration="0.4" Fill="Hold" />
</RandomSet>
</ParallelSet>- simple collision detection
- element of physics engine - objects "bounce" or "stick"
<BoolTrigger Condition="hero:bounce" EnterAction="this_setHeroBounce.Start()"/>
The root object - Game - is responsible for enumerating all levels present in the game. The engine automatically parses the level metadata and compiles it into a runnable flow.
On every tick the engine evaluates all objects in the current level and gives them a chance to mutate their state.
More detailed documentaion is to follow...