BeaCraft 1.2.0

For Minecraft 1.21.1. The pathfinder has been rewritten.

Pathfinding

• Proper A*. The heuristic is now carried through the search, so it aims at the target rather than expanding evenly in every direction. A sixty block walk settles in sixty-one expansions; previously anything past roughly forty blocks ran into the node ceiling and came back "No path found".
• Diagonal movement, with corner checks so it does not clip blocks.
• Real mining costs, taken from the game's own break-speed calculation, so the tool in hand and the hardness of the block both count. Blocks that cannot be broken are left out of the search.
• Hazards are understood. Lava, fire, magma, cactus, powder snow, campfires, sweet berries and wither roses are no longer read as open air.
• Partial routes. When the target cannot be reached, it walks as close as the terrain allows and reconsiders from there instead of returning nothing.

Movement

• move reports SUCCESS on arrival only, and otherwise says what stopped it and how far out it ended up.
• Recalculating after being stuck no longer leaves the previous action running.

Development

The search no longer depends on MinecraftClient, and twenty unit tests cover it. Run them with make test.