This represents a Coin or a type of Gem (Green, Red, Blue). From the game’s perspective, coins and gems are the same kind of spawnable object (“coin”), but a “coin” or “green/red/blue gem” are different types of “coins”.

A default coin awards 1 point, green and red gems award 2 points, and blue gems award 3 points.

The type of “coin” that actually spawns can be controlled by the “probs” or “type” value.

Spawnable Object data #

{
  "key": "c",
  "gridY": <GridY>,
  "probs": <Array of CoinType probabilities>, (optional)
  "type": <CoinType> (optional)
}

---

Data Fields #

gridY #

The GridY position to spawn this object (see Coordinate System)

probs (optional) #

Defines the probabilities that a specific coin type will spawn.

Probablities are defined like this:

"probs": [
  { "value": "default", "p": 0.4 }, 
  { "value": "green", "p": 0.1 },
  { "value": "red", "p": 0.2 },
  { "value": "blue", "p": 0.3 }
]

• value – defines the type of coin/gem that is spawned
  • options: default, green, red, blue

• p – probability that the coin will spawn with the given type. All values of p within a single probs array must sum to 1.0

In this example, this coin object will have a 40% chance to spawn as a default coin, 10% chance to spawn as a green gem, 20% chance to spawn as a red gem, and a 30% chance to spawn as a blue gem. The final type is chosen at spawn time based on the defined probabilities.

type (optional) #

Defines the specific type of coin/gem that will spawn, instead of randomly through probabilities.

options: default, green, red, blue

Note that only one of probs or type should be present for a single coin spawnable object. Including both will result in an error message.

---

Example Level JSON #

{
  "items": [
    {
      "type": "chunk",
      "data": {
        "0": [
          {
            "key": "c",
            "gridY": 50,
            "probs": [
              {"value": "default", "p": 0.4},
              {"value": "green"  , "p": 0.1},
              {"value": "red"    , "p": 0.2},
              {"value": "blue"   , "p": 0.3}
            ]
          }
        ],
        "25": [
          {"key": "c", "gridY": 30, "type": "default"},
          {"key": "c", "gridY": 40, "type": "green"  },
          {"key": "c", "gridY": 50, "type": "red"    },
          {"key": "c", "gridY": 60, "type": "blue"   }
        ]
      }
    }
  ]
}