v1.0.4

Fixes:

• Fix bug when grappling to map extents. Now you go all the way to the wall.
• Fix bug where mob AI is skipped. If a mob was stunned and died in the same turn, it would pass the stun to the mob that took its slot.
• Fix is_valid() function so it works correctly. Now a pickup will drop as close as possible to the chest it came from. It can also land in the upper-left corner.

Improvements:

• Better randomization of level. Mix in entropy on level 0 so levels 1-9 are more random.
• Add a joypad repeat rate and buffered input, like the original porklike.
• Big optimization to the sight() function, so it runs ~3x faster in some cases.

Code:

• Some code cleanup.