Kick Castle Simulator (2D)

The 3D version of this siege lets you drag-aim and hold-to-charge a kick at a castle rendered in Three.js. This 2D companion strips the scene down to a side-on projectile-motion diagram so the physics itself is the thing you're reading: an angle slider and a power slider set the launch speed and direction, a wind slider adds a constant lateral acceleration that pulls the shot off its no-wind arc, and switching between a 6 kg stone and a 14 kg iron ball changes both how far wind can drift it and how much kinetic energy it delivers on impact. A dotted guide line traces the textbook range/height/flight-time formulas for the current angle and power before you fire, and the live readout panel keeps v₀, range, max height, time of flight and kinetic energy updated as you adjust the sliders — the same numbers the simulated flight is built from, not a separate score screen. The castle itself is a breakable grid of bricks with a reinforced two-cell gate: enough hits crack the outer wall for style points, but only clearing every gate brick in that gap counts as a breach.