todo.md

• Cell rendering.
  • Pass cell material data to shader.
    • Create image with 32bits cell material data for each cell material.
    • Pass to cell shader as a texture.
  • Display base cell color.
    • Cell have a base color.
    • Take base colors from cell material and compile into a color palette texture.
    • Add base cell color (from cell resource) palette to shader.
  • Color value 16
    • Define gamma correct value palette.
    • Add 4 bits modulate to cell data.
    • Add value palette to cell shader.
  • Color modulate 16
    • Define color palette.
    • Add 4 bits modulate to cell data.
    • Apply modulate on cell shader.
  • Add booleant to not apply color in cell material.
  • Check that cell can have color when changing material.
    • set color (gdscript)
    • reaction
    • set cell (gdscript)
    • cpp
  • Color generation (noise/sudoku/texture)
    • Generation type can be set on cell material data.
  • Bloom 80%+
    • Add bloom to environment.
  • Light
    • Add padding to light viewport, so that light does not pop-in
    • Take cell data that can be seen + padding
    • convert cell data to color
    • raycast global light
      • Raycast toward global light origin
      • Can disable (eg. when no sun/moon or too deep)
    • raycast light
      • only update if affected chunks changed or light moved.
    • global light
      • Can set strenght
      • Take color and add light if we can see bg
      • Can disable (eg. when no sun/moon or too deep)
  • Merge color pass with global light pass.
  • Backgroud cells
    • data: 8 bg color, 3 wire, 1 actuator, 12 actuated tile, 8 actuated tile color/value
    • only alocate a chunk if there is any
  • last color bit is transparency (20%)
  • Draw cells & lights above layer 0.
• World gen.
  • Can configure infinite border cells material.
  • Figure out gdscript interface.
  • Generation passes
    • Carvern
      • Large cave
      • Snaking tunnel
    • Ocean
    • Desert
    • Pyramid
    • Ice
    • Bedrock
    • Hell
    • Tower
    • Sky islands
    • Surface plateau
    • Mountain
    • Slime pit
    • Mushroom cavern
  • Post generation
    • Add set_cell_generation(x, y, mat) to gdscript which can set border cells and skip activation
    • Take border cell from cells's border.
    • Activate all
    • Paint all
    • Simulate for 3k-10k ticks for cells to settle
  • Add layer height to some global state.
• Border cells.
  • Looping infinite border.
  • Reapply border cell when border is modified.
• Benchmark
• Simulation
  • Run without blocking main thread.
  • Run using multiple thread.
  • If too many active chunk, only update those close to the player.
  • Consider storing ractions in hashmap.
  • Refactor cell movement.
  • Activate rows manualy when setting cells.
• Character
  • Fix character going slightly down just before going up for some reason.
  • Animation template
  • Player
    • Hands
      • Show current item.
      • Look where the player is aiming
      • Item use animations.
        • Melee attack
        • Mining
        • Consume item
  • Enemies
    • Spawn based on player biome.
    • Ai templates
  • Bosses
• Items
  • Player inventory
    • Chest
    • Equiped armor/accessories
      • Change sprite
  • Dropped item
    • Picked-up if enough space & nearby
    • Merge same item nearby
    • Delete if > than a configurable amount
• Biome
  • Biome condition
    • Min cell coverage needed.
    • Min distance from center.
    • Min depth.
    • Priority over other biome
  • Add biome to cell material.
  • New biome scan node
    • Continuously scan nearby cells. Keep a moving average
    • Emit signal on biome change.
  • Remove biome depth requirement
  • Only cavern + surface layer
  • Add bg to biomes data
    • Background
      • Use layer height to clamp biomes bg position
      • Not affected by light
      • Infinite loop
      • Change based on current biome
        • Seamless transition
      • Add biome background node to biome data.
      • Add cavern fallback bg
      • Add cavern start texture
      • Add surface color gradient
      • new bg should fade-in as well (so that the bgs overlap does not add to >1.0).