Starters

Canonical starting templates. copy one, swap in your art and math, and ship.

Classic 5×3 starter#

The copy-paste starting point for a left-to-right line-pay slot, the foundation of most slot games.

Cascade 6x4 tumble#

Modern tumble/cascade slot on runCascade; card symbols first, then the identical build with real Spine art.

MultiWays#

Per-spin cell variation: each reel lands on a different cell count between minCells and maxCells, and total ways is the product of the per-reel cell counts.

Gotcha: call reelSet.setShape(rowsPerReel) BEFORE setResult(), with serverGrid[i].length === rowsPerReel[i].

Hold & Win respin#

Coins lock on land and respin until the grid fills; board events drive the HUD.

Horizontal starter#

The same template with the strips turned sideways: three reels stacked down the screen, each scrolling along X. One call, .orientation('horizontal'), plus the cell size you want on screen.

Gotcha: symbolSize(w, h) and symbolGap(x, y) stay screen-space here, so on a horizontal set the strip advances by the symbol WIDTH and x is the gap between cells while y is the gap between reels. Index space does not move: reels(3).visibleCells(5) and the ColumnTarget[] you pass setResult() are unchanged.

Reverse starter#

Classic 5x3, travelling the other way: symbols rise and each reel lands from below. The whole diff against the classic starter is .direction('reverse').

Gotcha: buffers stay geometric. bufferStart is still the slot above the window, so on a reverse reel the “next up” slot is bufferEnd. Read reel.axis.feedEdge rather than assuming. See orientation and direction for the per-reel and mixed-axis variants.