Perfect Half is a spatial reasoning puzzle game that challenges your ability to judge areas and volumes. Your mission is simple: draw a single line to cut various complex polygons into two identical pieces, each exactly 50.0% of the original size.
Tap and drag across the shape to determine the cutting line. A red dashed guide will help you visualize the slice.
Release your finger to execute the cut. The game will calculate the area of both resulting polygons in real-time.
To pass a level, the resulting ratio must be within ±1.0% of the target 50.0%. Aim for a "GOD PERFECT" (within 0.1%)!
This game utilizes advanced computational geometry algorithms. When a user draws a line, the engine performs a "Polygon-Line Clipping" operation, calculating intersections with every edge and re-sorting vertices to create two new valid polygons. Area calculation is performed using the Shoelace Formula (Gauss's area formula).