Appendix D — Tuning Tables

The numbers that make Shatterfield play the way it does. Change them to remix the game: the game’s Logic reads them from here. Try one change at a time, and run the game after each. If something stops working, put the old number back.

D.1 Data Tables

D.1.1 Asteroid Materials

The Asteroid materials, one per wave in this order, then repeating. Each row names the sprite its Asteroids use.

Data TableAsteroid MaterialsData Structure: Asteroid Materials Entry

Row 0Standard

spriteAsteroid Standard

Row 1Brittle

spriteAsteroid Brittle

Row 2Crystal

spriteAsteroid Crystal

Row 3Dense

spriteAsteroid Dense

Row 4Metal

spriteAsteroid Metal

Row 5Volatile

spriteAsteroid Volatile

D.1.2 Sky Layers

The sky, back to front, one row per layer. background: the layer’s Background; driftX and driftY: its own slide (image pixels per second, Y up); depth: how much it slides against the Ship; surge: how fast it rushes during a sector jump (image pixels per second).

Data TableSky LayersData Structure: Sky Layers Entry

Row 0Nebula Panorama

backgroundNebula Panorama

driftX-4

driftY0

depth0.015

surge700

Row 1Stars Far

backgroundStars Far

driftX-7

driftY1

depth0.04

surge700

Row 2Gas Filaments

backgroundGas Filaments

driftX-10

driftY1.5

depth0.07

surge950

Row 3Stars Mid

backgroundStars Mid

driftX-14

driftY2

depth0.1

surge1300

Row 4Stars Near

backgroundStars Near

driftX-24

driftY3

depth0.2

surge2000

Row 5Space Dust

backgroundSpace Dust

driftX-42

driftY5

depth0.45

surge3200

D.2 Logic Numbers

The numbers and colors each Logic Component keeps in its Shared Variables and Per Instance Variables, with the Starting Value its card gives. A value set on its Object, under Variables in the Properties, or on a placement in the Scene, wins over the value here.

SHOT LIFETIME
  lifeSeconds ................ 0.85

SHIP GUN
  shotSpeed .................. 20
  muzzleDistance ............. 1.1875
  fireCooldownSeconds ........ 0.11
  maxShots ................... 4

SHIP HYPERSPACE
  cooldownSeconds ............ 1.2
  sparkCount ................. 36

ASTEROID DRIFT
  minSpeed ................... 1.40625
  maxSpeed ................... 2.65625
  maxSpin .................... 55
  wave ....................... 1
  speedUpPerWave ............. 0.07
  speedUpLastWave ............ 9

BREAK APART
  points ..................... 20
  sparkCount ................. 34
  shake ...................... 0.012
  shakeSeconds ............... 0.18
  popupColor ................. #dff6ff
  popupSize .................. 0.46875
  popupRise .................. 0.8125
  popupSeconds ............... 0.55
  fragments .................. 2

SHIP CRASH
  explosionCount ............. 90
  crashSparkCount ............ 40
  shake ...................... 0.022
  shakeSeconds ............... 0.45

SHIP SHIELD
  shieldSeconds .............. 3
  blinkSeconds ............... 0.1
  fadedAlpha ................. 0.25

LIVES AND RESPAWN
  startLives ................. 3
  respawnSeconds ............. 2.4

LIFE ICON
  slot ....................... 1

ASTEROID MATERIAL
  wave ....................... 1

WAVES
  bannerSeconds .............. 1.6
  jumpSeconds ................ 1.4
  maxAsteroidsPerBand ........ 6
  edgeBand ................... 3.4375
  sideBand ................... 4.6875

EXTRA SHIPS
  extraShipEvery ............. 10000
  popupAboveCenter ........... 3.75
  popupColor ................. #7dffb2
  popupSize .................. 0.75
  popupRise .................. 1.25
  popupSeconds ............... 1.2

SAUCER FLIGHT
  speed ...................... 3.75
  margin ..................... 1.25
  minDepth ................... 2.8125
  maxDepth ................... 21.25
  firstWeaveSeconds .......... 1
  weaveSpeed ................. 2.65625
  weaveMinSeconds ............ 0.8
  weaveMaxSeconds ............ 1.6

SAUCER GUN
  fireEvery .................. 1.35

SAUCER EXPLODES
  points ..................... 200
  explosionCount ............. 60
  shake ...................... 0.012
  shakeSeconds ............... 0.25
  popupColor ................. #ffd166
  popupSize .................. 0.5625
  popupRise .................. 1
  popupSeconds ............... 0.8

SAUCER SHOT FLIGHT
  aimSpread .................. 7
  speed ...................... 10.3125
  lifeSeconds ................ 1.15

SAUCER SPAWNER
  firstSeconds ............... 16
  smallChance ................ 0.12
  smallChancePerWave ......... 0.06
  smallAlwaysScore ........... 40000
  gapMinFloor ................ 7
  gapMinStart ................ 17
  gapMaxFloor ................ 11
  gapMaxStart ................ 24

BLINK
  blinkSeconds ............... 0.55
  firstDelaySeconds .......... 0.6

TITLE SCREEN
  asteroidsPerBand ........... 3
  edgeBand ................... 3.4375
  sideBand ................... 4.6875

GAME OVER SCREEN
  playAgainSeconds ........... 2
  returnSeconds .............. 12

HEARTBEAT
  startSeconds ............... 1
  speedUp .................... 0.97
  fastestSeconds ............. 0.24

SKY PARALLAX
  followRate ................. 3
  surgeRate .................. 2.4
  pixelsPerMeter ............. 32