2DArray

// AutoCopyToGPU, written by Eli Piilonen in 2020, MIT license

// Whenever your C# scripts compile, structs/consts/enums that you
// mark with [CopyToGPU] will be copied to a shader-include file.

// DO NOT put this file in an Editor folder! It will break.

///// C# Usage:
//
// [CopyToGPU]

2DArray

-- "bar" contains:
  -- pt1 {x, y, vx, vy} or {x, y, oldx, oldy}
  -- pt2 {x, y, vx, vy} or {x, y, oldx, oldy}
  -- dist (intended distance between points)

function updatebar(bar)  
  -- find the current vector between our points
  local dx = bar.pt1.x-bar.pt2.x
  local dy = bar.pt1.y-bar.pt2.y
  

2DArray

-- clear the screen
cls()

-- make a shorter alias far pico8's
-- "get random number" function.
-- usage: r(10) means "random number in [0,10)"
r=rnd

-- print "grow" to the screen,
-- a weird shorthand for print("grow")

2DArray

fluid={}
poke(0x5f2d,1)

function spawndrop(x,y)
	// {x, y, old_x, old_y, hit_count}
	add(fluid,{x,y,x,y,1})
end

function sortfluid()
	for i=2,#fluid do

2DArray

function drawfish(cfish,fishx,fishy,scale)
	srand(cfish.seed)
	local length=flr(20+cfish.size*5)
	length=min(length,120)
	
	local keycount=-flr(-length/(5+rnd(20)))
	local keys={}
	keys[1]=0
	for i=2,keycount do
		keys[i]=(rnd(length/8)+length/16)*scale