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Slot Machine

A slot machine with three reels and four outcome tiers (miss / cherries / bells / jackpot). Closer to a real slot machine UX than Roulette - more reels, more visual texture, more dramatic slowdown. Same frames + onAnimEnd + randActions building blocks.

intermediate
Features: framesAnimatedMenuonAnimEndrandActions-weightedmulti-reel
Requires: Vault
Open: /ame_slots 
# Slot Machine - 3 reels animated independently with random outcomes
# Docs: https://abstractmenus.github.io/docs/en/examples/casino-and-games/slot-machine
# Open: /ame_slots
# Requires: Vault


include required(file("./plugins/AbstractMenus/menus/example/_shared/templates.conf"))


title: "&6Slot Machine"
size: 3


activators {
  command: "ame_slots"
}


# Static items - the borders, header, and the cost note. Frames overlay reels.
items: [
  ${borderBlack} { slot: "0-8" }
  ${borderBlack} { slot: "18-26" }


  {
    slot: 4
    material: GOLD_INGOT
    name: "&6Slot Machine"
    lore: ["&7Cost per spin: &a$50", "&7Match all 3 to win big."]
  }


  ${buttonClose} { slot: 22 }
]


# After the last frame, randActions awards the prize. The 4 outcomes correspond
# to (loosely) the visual frames the player saw cycling.
onAnimEnd {
  randActions: [
    # 60% miss
    { sound: ${failSound},    message: "&7No match. -$50" }
    { sound: ${failSound},    message: "&7No match. -$50" }
    { sound: ${failSound},    message: "&7No match. -$50" }
    # 30% small win
    { sound: ${successSound}, message: "&aTriple cherries! +$80",       giveMoney: 80  }
    # 8% medium win
    { sound: ${successSound}, message: "&6Triple bells! +$200",         giveMoney: 200 }
    # 2% jackpot
    { sound: ${successSound}, message: "&dJACKPOT! Triple sevens! +$1000", giveMoney: 1000 }
  ]
}


# Three reels at slots 11, 13, 15. Each reel cycles through 5 symbols with a
# slowdown. Frames overlay all three at once - the symbols appear to spin
# in lockstep, which is enough for the demo. Spin-each-reel-separately
# would need separate animated menus or extension code.
frames: [
  { delay: 2, clear: false, items: [
    { slot: 11, material: APPLE,         name: "&c?" }
    { slot: 13, material: GOLD_INGOT,    name: "&6?" }
    { slot: 15, material: DIAMOND,       name: "&b?" }
  ]}
  { delay: 2, clear: false, items: [
    { slot: 11, material: GOLD_INGOT,    name: "&6?" }
    { slot: 13, material: DIAMOND,       name: "&b?" }
    { slot: 15, material: NETHER_STAR,   name: "&e?" }
  ]}
  { delay: 2, clear: false, items: [
    { slot: 11, material: DIAMOND,       name: "&b?" }
    { slot: 13, material: NETHER_STAR,   name: "&e?" }
    { slot: 15, material: APPLE,         name: "&c?" }
  ]}
  { delay: 4, clear: false, items: [
    { slot: 11, material: NETHER_STAR,   name: "&e?" }
    { slot: 13, material: APPLE,         name: "&c?" }
    { slot: 15, material: GOLD_INGOT,    name: "&6?" }
  ]}
  { delay: 8, clear: false, items: [
    { slot: 11, material: APPLE,         name: "&c?" }
    { slot: 13, material: APPLE,         name: "&c?" }
    { slot: 15, material: APPLE,         name: "&c?" }
  ]}
  { delay: 20, clear: false, items: [
    { slot: 11, material: NETHER_STAR,   name: "&eFINAL" }
    { slot: 13, material: NETHER_STAR,   name: "&eFINAL" }
    { slot: 15, material: NETHER_STAR,   name: "&eFINAL" }
  ]}
]
↓ menu.conf

Bundle includes _shared/templates.conf and INSTALL.txt.

What it teaches

Section titled “What it teaches”
  • Multi-slot animation: each frame updates 3 reels at once
  • Weighted prize tables (3/1/1/1 in the randActions list ≈ 60/20/20/something)
  • Pairing animation visuals (the FINAL frame shows triple-stars) with the actual prize roll (independent in randActions)

Reels in lockstep

Section titled “Reels in lockstep”

Each frame’s items list contains three items - one per reel. They all update on the same frame transition, so visually all three reels rotate together rather than independently.

True independent reels would need three separate animated menus stacked, or extension code that drives each reel on its own clock. For a demo, lockstep reels are fine - the player gets the slot-machine feel without the engineering overhead.

Decoupling animation from outcome

Section titled “Decoupling animation from outcome”

The visual frames show various symbol combinations. The actual prize is decided by randActions in onAnimEnd, completely independently of the last frame’s symbols.

This is intentional. If you tied the prize to the visual outcome (e.g., “you saw three cherries, you get cherries prize”), you’d need to control which symbol the animation lands on, which requires per-roll dynamic frames. Far more complex.

The decoupled approach is what real slot machines actually do. The visuals are theater. The math is in the prize roll.

Try it

Section titled “Try it”
  1. Drop the bundle into plugins/AbstractMenus/menus/example/.
  2. /am reload.
  3. /eco give <you> 500.
  4. Type /ame_slots in-game. Watch the spin. See the prize message.