openbor Tools

Update uncache sprite functions.
How it allows unloading only the sprites and keeping the model.

Unload flag 2 for model, delete sprites as well.
TODO: take care of those subclassed models.

Expand s_sprite structure and chagne other sprite related stuff for later use.
Now s_sprite stores original width and height as well as offsets to avoid loading and cropping the same image file multiple times.

Change TYPE_RESERVED to 0x40000000 to avoid script variable unsigned to signed problem.

Print different error message for changing candamage/hostile/projectilehit properties.

Fix a mistake in last update, in check_attack_chance, it should have a higher chance to skip the attack when off-screen, not lower.

Another update of attack chance code after playing test some mods, mostly some value changes.

Fix blockratio instant death bug.
Update attack chance code, remove the complex logic and make a function.
Update normal ai move code, fast walking characters also changes their pattern faster.

Add an index property to s_anim, because handle can't be parsed to int in x64 system.

Update attack chance code.
Will add a switch if necessay.