OneTaskBy Tim King · Updated
Pachinko Game Online
Drop Balls Through a Peg Board Into Bins
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How the 3D Pachinko works
This pachinko game online drops balls through a pin field. A glass fronted pachinko cabinet stands in front of you: a staggered grid of steel pegs above a row of bins. Press Drop and a stream of balls is released from the position on the slider, clattering down through the pegs and landing in the bins. Click anywhere on the board to drop a single ball from that spot. The stats count the balls dropped, how many are still in flight, which bin is fullest and the tally in every bin. Drag to orbit, scroll to zoom, Save PNG to keep the pile.
Pachinko game online: getting a good result
Pachinko, plinko and the Galton board are all the same machine: a ball falls through rows of pegs and at each row is knocked a little left or right. Add up enough of those small random nudges and the landing spot follows a bell curve, so balls dropped from the centre pile up in the middle bins and only rarely reach the edges. This version runs the whole thing as a real 3D physics simulation in your browser. Every ball is a rigid sphere with weight and bounce, every peg is a solid cylinder, and the front glass and back board keep the balls in the plane of the cabinet, so the path of each ball comes from the collisions themselves rather than a coin toss per row. Balls also knock into each other and rebound off the side walls, so a real pile is lumpier than the textbook curve and the edge bins fill more often than the maths alone predicts.
Peg rows sets how many rows of pegs the balls fall through; more rows means a taller cabinet and a wider spread. Bins sets the number of pockets at the bottom, which also sets the width of the board. Balls per drop is how many balls one press of Drop releases, one every tenth of a second so they do not all land on the same peg. Drop position slides the release point from the left edge to the right edge; drop from one side and the pile skews that way because the wall cuts off half the bounces. Clicking the board drops one ball wherever you clicked, which is the easiest way to aim at a particular bin.
Balls are counted in a bin once they have fallen below the top of the dividers, and the bin tally updates a few times a second. Clear removes every ball but keeps the board; Restart rebuilds the cabinet with the current settings. Everything runs locally in the page; nothing is uploaded.
FAQ
Why do the edge bins fill more than a bell curve predicts?
Balls bounce off each other and off the side walls, which the textbook Galton board ignores. The pile is lumpier than the maths, and dropping from off-centre skews it further.
How do I aim at a particular bin?
Click the board directly above it. A single ball from that spot has the best chance of that bin, but the pegs make every drop uncertain; that is the point.
Why are some balls stuck in flight?
A ball can rest on top of a peg or wedge between two. It counts as in flight until it falls below the divider tops. Click nearby to drop another ball on it, or press Clear.
How many balls can it hold?
Several hundred before the frame rate suffers. Once the bins are full, balls pile above the dividers and are still counted; press Clear to empty the board and keep the layout.
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