• Project stage: planning, following GBA tutorials

• tasks
• done tasks

Game about sailor merchant.

• Faster Than Light: events
• Legend of Zelda: Minish Cap, Ragnarok Online: graphics look
• Skyrim: fast travel

• Animal Crossing + A Short Hike: speaking, quests, inventory

• characters
  • farmer, blacksmith, monk, pirate leader
• procedurally generated global islands map & local maps
  • perlin noice?
• tools
• upgrades: speed, durability
• items
  • treasure maps, shovels
• localStorage?
• random events: pirates, food, poison
• pirate fight
  • arcade
  • dodging, selecting & throwing items at them
    • different items have different effects
    • item has durability, it loses 0-2 on throw
  • auto-target (with select another target button)
  • enemies
    • health bars
    • different abilities
• collectables
• possessions: cart, ship

• size

  • 128*128*4/8/1024=8 kb map
  • x2 side map (256 cells) => x4 size => 32kb map
  • 8x8 tiles per map cell
  • 16px tile
  • GBA screen 160x128 = 10x8 tiles
  • 256x8=2048 tiles map side
  • move speed: 2 tiles/s
  • 2048/2=1024 seconds
  • 1024 seconds / 60 = 17 minutes from side to side

• ground tiles:

  • 0 - deep water
  • 1 - water
  • 2 - sand
  • 3 - swamp
  • 4 - grass
  • 5 - forest
  • 6 - wood
  • 7 - road/bridge (speed bonus)
  • 8 - hill
  • 9 - rocks
  • 16 => 2^4 => 4 bits

• buildings

  • port
  • monastery
  • military outpost
  • pirate bay?
  • blacksmith
  • herbalist

• map objects

  • mushrooms, herbals
  • rare herbals respawn randomly on map on pick up. one rare herbal per land type

• temples

  • blessing: missing word to Bible verse / Bible quiz

• (not stored, generated from random seed to save memory)

• +-2 tiles shift on cells vertices

• +-2 cell borders tiles shift

• random objects are from seed) trees, decorations)

• Also store random basis:

• horizontal: [0..255] 1..255 random numbers (no zero)

• vertical: 256 1..255 random numbers

• random seed basis: 0..555000?

• random_seed_for_cell(x,y) = (random_seed_basis + random_seed_for_cell_addition(x, y) % max_seed

• random_seed_for_cell_addition(x, y) = random_seed_horizontal_multiplier[x] * random_seed_vertical_multiplier[y]

• random seed for [2, 1] vertex: same as random seed for [2, 1] cell (as for cell at right and below of this vertex)

• random seed for (x, y, x2, y2) border = (random_seed_basis + random_seed_vertical_multiplier[y] * random_seed_horizontal_multiplier[x]) % max_seed

• road: drawn on 4-5 columns 4-5 rows of cell always (?)

• is slow on gba and system time is not available on GBA, only on some cartridges
• ? array of shuffled integers 1..100 byte size integers
  • = 100 * 8 / 1024 = < 1 kb
• ? array of shifts 1..255 filled based on timing of first buttnons keypresses after game loaded
  • = 100 * 8 / 1024 = < 1 kb
  • timing is frame number. Button is multiplier