This update brings a tonne of improvements to conveyor belts. The most obvious one is the visual upgrade with a new animation and the addition of corner pieces:

The behaviour of the conveyor belt has been changed too:

• The original function of the conveyor belt was to act as a one-way door to prevent players from backtracking. When it ended up with two functions, it became worse than if it did just one thing very well. So the first change I made was to remove the one-way constraint, allowing players and boulders to move back up the conveyor belt, albeit more slowly than the other direction
• The speed of the animation now reflects the speed of items riding the conveyor belt
• Boulders no longer roll when moving around on the conveyor belt. Previously, their sprite scroll position was determined by world position, making them appear to roll around while remaining stationary relative to conveyor belts they were riding. I changed the boulder sprite scrolling logic to only be influenced by forces that weren't also moving the floor beneath them
• Players can interact with boulders more naturally on conveyor belts, being able to push them around, on and off. I also fixed a bug when boulders would "suck" the player on to the conveyor belt

The one-way door function has been moved to a new dedicated item:

In response to the changes to the conveyor belt, another new item has been added: the destructor. There were cases where I didn't want players to smuggle boulders from one room to another. The only way to stop this was to have a conveyor belt loop between rooms (the "Feedwater" level employed this ugly boulder trap mechanic) as previously boulders could not be removed from conveyor belts. Now that they can, I had to find a new mechanism, which is where the destructor comes in. It's like the Emancipation Grill from Portal, destroying any boulder or arrow that touches it, but allowing the player to pass through. I look forward to discovering more uses for it!

My plan for the next update is to finally introduce a new level. Stay tuned!