tech: Halbach array - throwing a block will also throw other nearby blocks
tech non-renewables now spawns ammo, but ammo can't be picked up
grenade tech that cause multiple explosions have less knock back for mobs
constraint: 0->0.5x healing
wormhole 7->8% duplication
many worlds takes a few frames between each tech given
bug fixes
harpoon ammo gain on autonomous defense fixed
constraints are properly randomized again
8bb8222b73