Sunday, December 15, 2013

Avoiding too much memory consumption

I realize that HBF was consuming too much memory so I tried the following approaches:

  • Avoiding in main classes the creation of internal classes until they are needed (the so called lazy initialization), since in most cases it's not mandatory to use them at all, for example one can freely assign any kind of value to sprites via GetVar/SetVar, but this is only used in a few classes. Another example is the use of distortions, currently they are only used with the grass element, so any other class doesn't need these distortions.
  • Create something that loads the bitmaps on demand (before all bitmaps were loaded), therefore TAnimationOptimizer was created, no code has to be changed with this approach, just wrap the assignation of animation via this class
Binaries and sources can be downloaded at the moment from SugarSync.

So what's new?

Avoiding early creation of aditional classes when creating sprites (vars, triggers and distortions)
More lazy creation approach on TCollision and TComponentEx (avoiding creation of internal classes when not used)
FillSurface() and DoColorKey() in D3D optimized a bit
Die event can be also assigned via closures (very handy)
New random methods based on KISS RNG
Some TLayer scan functions optimized a bit
New TSpriteEngine CountClasses() method (avoids the creation of a list like in Find() )
Laser beam didn't have assigned the camera so it was not shown
Fixed some overflow sound volume and panning issues

Spike fixed (once for all?)
Avoiding early creation of lightmaps (darkness, etc)
New element princess (guess for what...)
There is a new animation optimizer so the system knows when to load animation bitmaps, just call TAnimationOptimizer.Instance.Get(), now the game does not load all graphics at the beginning
New element black hole (experimental)
Map folders renamed
New EnemyType property, removed IsMechanic and Indestructible properties (when Indestructible, hero's shield cannot kill the enemy)
Hero now has a limited amount of air under the water (in percentage), the water level has some escapes to get extra air
Memory leak in darkness fixed
Arrows now explode bubbles
Some entities no do longer generate shadows
Calls to Engine.Find() changed to Engine.SpritesAt() which uses the spational partitioning and therefore it is much faster
New map called "No name" based on bubbles
Enemies on top of Items won't try to move left and right all the time as if there was no tomorrow
New TGameSprite helper methods IsBall(item): bool and IsBubble(item): bool
New element door (it didn't need to be an item), Items should be very simple sprites that can interact with normal sprites
When Ball collides against a tile it stops (last level contains one)
New bubbles element
Keys, lives and princess created when needed
HandleSprings() refactored and renamed to GetJumpMultiplicator()
New class THud that does all the job related to displaying lives, key, etc
New enemy Tom
New images for Mummy
Bubbles were generating memory leak (what's wrong with me?!)
Bubbles now collide against solid tiles
Flame kills hero
Weird now tries to connect to the closer wall when instantiated
Trap door adds a delay for every instance, this way the doors are not synchronized therefore it looks nicer

Mummy and new bubbles

Air vents

Our new friend Tom, well I guess it should be bigger...

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