I want to experiment and test designs on a computer too weak to run Minecraft at any reasonable speed, and without distractions like night time, mobs blundering onto railway tracks, Endermen dismantling my construction, and so on.
Is there a way to run Redstone tests/simulations that support the 1.5 features? I understand analog features like comparators might take a while, but I'd like to experiment with circuits involving Redstone Blocks pushed around by pistons, and I can't find any simulators online that currently support them.