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skyboy / MineFactoryReloaded

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Conveyor belt can't move items uphill #563

Open stevestech opened 8 years ago

stevestech commented 8 years ago

Versions tested where this bug occurs: MineFactoryReloaded-[1.7.10]2.8.1-174.jar MineFactoryReloaded-[1.7.10]2.8.2B1-188.jar

Versions tested where this bug doesn't occur: MineFactoryReloaded-[1.7.10]2.8.0-104.jar

CoFHCore-[1.7.10]3.1.2-325 Forge: 1.7.10-10.13.4.1558 Java: 1.8.0_66 Singleplayer. No other mods installed.

Whenever a conveyor belt tries to move an item uphill, it gets stuck.

Revert to an older version of MFR and everything works as expected!

Working as expected (v 2.8.0-104) https://youtu.be/wp0SOxEWr0M

Not working (v 2.8.1-174) https://youtu.be/MUx1b7GDWyQ

skyboy commented 8 years ago

This is a persistent issue, affecting all versions of MFR. 2.8.1 changes the logic in an effort to reduce the visibility of the issue as much as possible, but this is a fundamental issue in the way minecraft handles collisions with blocks. The item isn't moving because it's not touching any of the conveyor belts, it's sitting on the air above the sloped conveyor as far as its code is concerned.

bigstiffy commented 7 years ago

I've noticed that this happens only when items are being moved uphill North and East. Visually, it appears the items sink into the conveyor belts, compared to when moving South and West uphill the items appear to hover farther above the conveyor belt.