This represents a wave of Coin objects (which from the game’s perspective may be either a coin or gem).

The Coin objects are arranged in a sine wave whose size depends on the preset data.

Preset item data #

{
  "key": "cw",
  "xStart": <GridX>,
  "yStart": <GridY>,
  "coinOpts": {
    "perWave": <number>,
    "type": <CoinType>
  },
  "amp": <GridY>,
  "wavelength": <GridX>,
  "totalLength": <GridX>,
  "bombs": true or false,
  "bombGap": <GridY>,
}

Values #

xStart #

The GridX coordinate that the wave starts at

yStart #

The GridY coordinate that the wave starts at

coinOpts (optional) #

• perWave (optional) – how many coins should be spawned per wave
  • default value: 10

• type – the CoinType for coins in this wave. See the Coin Spawnable Object page for more information
  • options: default, green, red, blue
  • default value: none (coin/gem types are chosen based on the game’s default probabilities)

amp (optional) #

The amplitude of the wave (ie the distance from the midpoint to the maximum height)

default value: 14

wavelength (optional) #

How long a single wave period should be. In other words, the GridX width from a peak in the wave to the subsequent peak in the wave.

default value: 50

totalLength (optional) #

The total length of the entire coin wave. The total number of coins expected in this wave will then be (perWave * totalLength / wavelength)

default value: 300

bombs (optional) #

Determines whether bombs should be spawned above and below the wave.

options: true, false

bombGap (optional) #

If bombs is true, this determines how far away (vertically) that the bombs should be spawned from the coin wave. The bombs will always spawn directly above and below a coin in the wave.

---

Example Level JSONs #

With bombs #

{
  "items": [
    {
      "type": "preset",
      "data": {
        "key": "cw",
        "xStart": 20,
        "yStart": 50,
        "coinOpts": {"perWave": 30},
        "amp": 14,
        "wavelength": 50,
        "totalLength": 100,
        "bombs": true,
        "bombGap": 30
      }
    }
  ],
  "opts": {
    "repeat": 5,
    "endPadding": 0,
    "winCriteria": {"type": "collect-all-coins"}
  }
}

High coin density #

{
  "items": [
    {
      "type": "preset",
      "data": {
        "key": "cw",
        "xStart": 20,
        "yStart": 50,
        "coinOpts": {"perWave": 100},
        "amp": 14,
        "wavelength": 50,
        "totalLength": 100
      }
    }
  ],
  "opts": {
    "repeat": 5,
    "endPadding": 0,
    "winCriteria": {"type": "collect-all-coins"}
  }
}

Coin types #

{
  "items": [
    {
      "type": "preset",
      "data": {
        "key": "cw",
        "xStart": 20,
        "yStart": 30,
        "coinOpts": {
          "perWave": 20,
          "type": "default"
        },
        "amp": 14,
        "wavelength": 50,
        "totalLength": 100
      }
    },
    {
      "type": "preset",
      "data": {
        "key": "cw",
        "xStart": 20,
        "yStart": 45,
        "coinOpts": {
          "perWave": 20,
          "type": "green"
        },
        "amp": 14,
        "wavelength": 50,
        "totalLength": 100
      }
    },
    {
      "type": "preset",
      "data": {
        "key": "cw",
        "xStart": 20,
        "yStart": 60,
        "coinOpts": {
          "perWave": 20,
          "type": "red"
        },
        "amp": 14,
        "wavelength": 50,
        "totalLength": 100
      }
    },
    {
      "type": "preset",
      "data": {
        "key": "cw",
        "xStart": 20,
        "yStart": 75,
        "coinOpts": {
          "perWave": 20,
          "type": "blue"
        },
        "amp": 14,
        "wavelength": 50,
        "totalLength": 100
      }
    }
  ],
  "opts": {
    "winCriteria": {"type": "collect-all-coins"}
  }
}

Tiny waves #

{
  "items": [
    {
      "type": "preset",
      "data": {
        "key": "cw",
        "xStart": 20,
        "yStart": 50,
        "coinOpts": {"perWave": 8},
        "amp": 5,
        "wavelength": 20,
        "totalLength": 100
      }
    }
  ],
  "opts": {
    "repeat": 5,
    "endPadding": 0,
    "winCriteria": {"type": "collect-all-coins"}
  }
}

Long waves #

{
  "items": [
    {
      "type": "preset",
      "data": {
        "key": "cw",
        "xStart": 20,
        "yStart": 50,
        "coinOpts": {"perWave": 50},
        "amp": 40,
        "wavelength": 100,
        "totalLength": 300
      }
    }
  ],
  "opts": {
    "endPadding": 0,
    "speed": 0.75,
    "winCriteria": {"type": "collect-all-coins"}
  }
}