Mirror Puzzle
You control how beams of light travel from a beam generator to a beam collector, using mirrors attached to movable or static objects. These mirrors reflect the beam in different ways, and may have limited or flipped activeness. Your objective is to arrange mirrors and possibly move or reconfigure them so that at least one part of the beam reaches the collector.
The beam is emitted from the generator in four directions: left, right, up, and down. Each direction of the beam proceeds cell by cell until it is reflected, redirected, or terminates. The beam continues through empty floor cells, void cells, glass, sand, open gates, trap cells, portals, and also through barrels, enemies, the character, and mirrors. It is terminated by walls and locks. If it enters a portal, it instantly appears at the paired portal in the same direction. Portals do not reflect or bypass; they relocate the beam to the peer.
Mirrors are defined by their orientation, activeness and their carrier object. There are four mirror orientations:
• Diagonal 1 (/): reflects left ↔ down and right ↔ up
• Diagonal 2 (\): reflects left ↔ up and right ↔ down
• Horizontal (-): reverses vertical direction (up ↔ down)
• Vertical (|): reverses horizontal direction (left ↔ right)
Mirrors are active or inactive. An inactive mirror does not affect the beam at all - it continues straight. An active mirror reflects the beam according to the list above. Mirrors can also have flipped activeness: such mirrors are active the first time they are hit by a beam, but become inactive for that beam on subsequent hits (or vice versa).
Each mirror is attached to one of three types of carriers:
• Barrels: pushable by the character, move one cell per push on floor.
• Carts: move on floor, one cell per player instruction, in 0, 1, 2, or 4 directions depending on movement type.
• Lifts: move across void, stopping at the first obstacle, by player instruction, with the same direction types as carts.
Deliver at least one part of the beam using mirrors.