add current stuff yeha

conf.lua

@@ -0,0 +1,13 @@
+function love.conf(t)
+  t.version = "11.1"
+  t.release = false
+  t.window.title = 'notsanequarium'
+  t.window.resizable = true
+  t.window.vsync = false
+  t.window.minwidth = 640
+  t.window.minheight = 480
+  t.window.width = 640
+  t.window.height = 480
+
+  -- t.window.msaa = 2
+end

const.lua

@@ -0,0 +1,28 @@
+ease = require 'lib.ease'
+
+FISH_SPLINE_QUALITY = 5 -- bigger number = more lag, smaller number = more noise
+FISH_RENDER_ITERS = 4 -- a bigger number allows for more smoother flipper movement and rotation, but is significantly laggier
+FISH_RENDER_ITEROFF = 0.025 -- should be 1/iters*0.1, lower numbers will make movement snappier and higher numbers will make it smoother but glitchier
+
+FISH_RENDER_FREQ = 4 -- only update the quality renders once every x frames
+FISH_COLISSION_CHECK_FREQ = 2 -- how often to update the colission
+FISH_EASE = ease.inOutSine -- ease used for fish movement
+
+FISH_ANGLE = 30 -- bigger angle allows for fish to swim further down/up at once
+FISH_FOLLOW_RANDOM = 10
+
+FISH_FOOD_COOLDOWN = 10
+FISH_FOOD_HUNGRY = -5
+FISH_FOOD_DEAD = -15
+
+FISH_AGE_MEDIUM = 25 -- the age, in seconds, needed for a guppy to become a medium guppy
+FISH_AGE_BIG = 65 -- see above, but for big
+
+FISH_SIZE = 6 -- how many large guppies can you fit on the screen
+
+FOOTER_HEIGHT = 68
+
+FOOD_HITBOX = 0.05
+
+DEBUG_FISH_PATH_SUBDIVISIONS = 50
+DEBUG_FISH_PREDICT_AMOUNT = 0.5

constructors.lua

@@ -0,0 +1,60 @@
+require 'const'
+
+local self = {}
+
+function self.fish(x, y)
+  local fish = {
+    x = x,
+    y = y,
+    size = 0, -- 0 for small, 1 for medium, 2 for big, 3 for king
+    eattimer = 0 + math.random() * 2, -- starts out hungry, with a 2s delay
+
+    lifetime = 0,
+
+    eases = {
+      
+    },
+    render = {
+      x = 0,
+      y = 0,
+      prevx = 0,
+      prevy = 0,
+      turn = 0,
+      swim = 0,
+      angle = 0,
+      xspeed = 0,
+      yspeed = 0,
+      eattimer = 1,
+      hungry = 0,
+    }
+  }
+
+  for i = 1, FISH_SPLINE_QUALITY do
+    table.insert(fish.eases, { -- we insert a fake ease that ends instantly and just hope the update loop replaces it with a valid, random one
+      x = x,
+      y = y,
+      fromx = x,
+      fromy = y,
+      a = 1,
+      speed = 1
+    })
+  end
+
+  return fish
+end
+
+function self.food(x, y, type)
+  local food = {
+    x = x,
+    y = y,
+    speed = 0.2,
+    time = math.random(),
+    deathtimer = 0,
+    type = 1,
+    goal = 0 -- assigns 0 as the fish so that hopefully the update loop replaces it with a valid, random one
+  }
+
+  return food
+end
+
+return self

lib/assets.lua

@@ -0,0 +1,84 @@
+local assets = {}
+
+function assets.clear()
+  print("ℹ️ clearing assets")
+
+  sprites = {}
+  sound_path = {}
+  music_path = {}
+end
+
+function assets.load(base)
+  print("ℹ️ loading " .. base)
+
+  assets.addSprites(base)
+  print("✓ added sprites")
+
+  assets.addAudio(base)
+  print("✓ added audio")
+end
+
+function assets.addSprites(base, d)
+  local dir = base.."/sprites"
+  if d then
+    dir = dir .. "/" .. d
+  end
+  local files = love.filesystem.getDirectoryItems(dir)
+  for _,file in ipairs(files) do
+    if string.sub(file, -4) == ".png" then
+      local spritename = string.sub(file, 1, -5)
+      local sprite = love.graphics.newImage(dir .. "/" .. file)
+      if d then
+        spritename = d .. "/" .. spritename
+      end
+      sprites[spritename] = sprite
+      --print(colr.cyan("ℹ️ added sprite "..spritename))
+    elseif love.filesystem.getInfo(dir .. "/" .. file).type == "directory" then
+      --print(colr.cyan("ℹ️ found sprite dir: " .. file))
+      local newdir = file
+      if d then
+        newdir = d .. "/" .. newdir
+      end
+      assets.addSprites(base, newdir)
+    end
+  end
+end
+
+function assets.addAudio(base, d, type)
+  local dir = base.."/audio"
+  if d then
+    dir = dir .. "/" .. d
+  end
+  local files = love.filesystem.getDirectoryItems(dir)
+  for _,file in ipairs(files) do
+    if love.filesystem.getInfo(dir .. "/" .. file).type == "directory" then
+      local newdir = file
+      if d then
+        newdir = d .. "/" .. newdir
+      end
+      assets.addAudio(base, newdir, type or file)
+    else
+      local audioname = file
+      if file:ends(".wav") then audioname = file:sub(1, -5) end
+      if file:ends(".mp3") then audioname = file:sub(1, -5) end
+      if file:ends(".ogg") then audioname = file:sub(1, -5) end
+      if file:ends(".flac") then audioname = file:sub(1, -5) end
+      if file:ends(".xm") then audioname = file:sub(1, -4) end
+      --[[if d then
+        audioname = d .. "/" .. audioname
+      end]]
+      if type == "sfx" then
+        sound_path[audioname] = dir .. "/" .. file
+
+        if sounds and sounds[audioname] then
+          registerSound(audioname, sounds[audioname].volume)
+        end
+      elseif type == "bgm" then
+        music_path[audioname] = dir .. "/" .. file
+      end
+      --print("ℹ️ audio "..audioname.." added")
+    end
+  end
+end
+
+return assets

lib/benchmark.lua

@@ -0,0 +1,88 @@
+local this = {}
+
+local updateLimit = 50
+
+local benchmarkingThings = {}
+
+local latestBenchmark = {}
+local doneBench = {}
+
+local function shrt(num)
+  return math.floor(num * 10000) / 10000
+end
+
+this.update = function()
+  doneBench = {}
+end
+
+this.startBenchmark = function(name)
+  latestBenchmark[name] = love.timer.getTime()
+end
+
+this.stopBenchmark = function(name)
+  if not benchmarkingThings[name] then benchmarkingThings[name] = {} end
+
+  if doneBench[name] then
+    local tbl = benchmarkingThings[name]
+    tbl[#tbl] = tbl[#tbl] + love.timer.getTime() - latestBenchmark[name]
+  else
+    table.insert(benchmarkingThings[name], love.timer.getTime() - latestBenchmark[name])
+  end
+
+  doneBench[name] = true
+  if #benchmarkingThings[name] > updateLimit then table.remove(benchmarkingThings[name], 1) end
+end
+
+this.getAverage = function(name)
+  local things
+  if name then
+    things = benchmarkingThings[name]
+  else
+    things = {}
+    for key in pairs(this.benchmarks) do
+      for _,n in ipairs(benchmarkingThings[key]) do
+        table.insert(things, n)
+      end
+    end
+  end
+
+  local total = 0
+  for _,n in ipairs(things) do
+    total = total + n
+  end
+
+  return total / #things
+end
+
+this.renderBenchmark = function()
+  local font = love.graphics.getFont()
+  local result = ''
+  local rowNum = 0
+
+  local averages = {}
+  local max = 0
+
+  for n,_ in pairs(this.benchmarks) do
+    local average = this.getAverage(n)
+    max = math.max(average, max)
+    averages[n] = average
+  end
+  for n,_ in pairs(this.benchmarks) do
+    local average = averages[n]
+    result = result .. '\n' .. shrt(average) .. 'ms' .. ' ' .. n
+    rowNum = rowNum + 1
+
+    local yoff = rowNum * font:getHeight()
+
+    love.graphics.setColor(1, 1, 1, 0.7)
+
+    love.graphics.rectangle('fill', 0, yoff, average * 1/max * love.graphics.getWidth(), font:getHeight())
+  end
+
+  love.graphics.setColor(0, 0, 0)
+  love.graphics.print(result)
+end
+
+this.benchmarks = benchmarkingThings
+
+return this

lib/ease.lua

@@ -0,0 +1,140 @@
+local this = {}
+
+local sqrt = math.sqrt
+local sin = math.sin
+local cos = math.cos
+local pow = math.pow
+local exp = math.exp
+local pi = math.pi
+local abs = math.abs
+
+function this.linear(t) return t end
+function this.inQuad(t) return t * t end
+function this.outQuad(t) return -t * (t - 2) end
+function this.inOutQuad(t)
+  t = t * 2
+  if t < 1 then
+    return 0.5 * t ^ 2
+  else
+    return 1 - 0.5 * (2 - t) ^ 2
+  end
+end
+function this.inCubic(t) return t * t * t end
+function this.outCubic(t) return 1 - (1 - t) ^ 3 end
+function this.inOutCubic(t)
+  t = t * 2
+  if t < 1 then
+    return 0.5 * t ^ 3
+  else
+    return 1 - 0.5 * (2 - t) ^ 3
+  end
+end
+function this.inQuart(t) return t * t * t * t end
+function this.outQuart(t) return 1 - (1 - t) ^ 4 end
+function this.inOutQuart(t)
+  t = t * 2
+  if t < 1 then
+    return 0.5 * t ^ 4
+  else
+    return 1 - 0.5 * (2 - t) ^ 4
+  end
+end
+function this.inQuint(t) return t ^ 5 end
+function this.outQuint(t) return 1 - (1 - t) ^ 5 end
+function this.inOutQuint(t)
+  t = t * 2
+  if t < 1 then
+    return 0.5 * t ^ 5
+  else
+    return 1 - 0.5 * (2 - t) ^ 5
+  end
+end
+function this.inExpo(t) return 1000 ^ (t - 1) - 0.001 end
+function this.outExpo(t) return 0.999 - 1000 ^ -t end
+function this.inOutExpo(t)
+  t = t * 2
+  if t < 1 then
+    return 0.5 * 1000 ^ (t - 1) - 0.0005
+  else
+    return 0.9995 - 0.5 * 1000 ^ (1 - t)
+  end
+end
+function this.inCirc(t) return 1 - sqrt(1 - t * t) end
+function this.outCirc(t) return sqrt(-t * t + 2 * t) end
+function this.inOutCirc(t)
+  t = t * 2
+  if t < 1 then
+    return 0.5 - 0.5 * sqrt(1 - t * t)
+  else
+    t = t - 2
+    return 0.5 + 0.5 * sqrt(1 - t * t)
+  end
+end
+
+function this.inElastic(t)
+  t = t - 1
+  return -(pow(2, 10 * t) * sin((t - 0.075) * (2 * pi) / 0.3))
+end
+function this.outElastic(t)
+  return pow(2, -10 * t) * sin((t - 0.075) * (2 * pi) / 0.3) + 1
+end
+function this.inOutElastic(t)
+  t = t * 2 - 1
+  if t < 0 then
+    return -0.5 * pow(2, 10 * t) * sin((t - 0.1125) * 2 * pi / 0.45)
+  else
+    return pow(2, -10 * t) * sin((t - 0.1125) * 2 * pi / 0.45) * 0.5 + 1
+  end
+end
+
+function this.inBack(t) return t * t * (2.70158 * t - 1.70158) end
+function this.outBack(t)
+  t = t - 1
+  return (t * t * (2.70158 * t + 1.70158)) + 1
+end
+function this.inOutBack(t)
+  t = t * 2
+  if t < 1 then
+    return 0.5 * (t * t * (3.5864016 * t - 2.5864016))
+  else
+    t = t - 2
+    return 0.5 * (t * t * (3.5864016 * t + 2.5864016) + 2)
+  end
+end
+
+function this.outBounce(t)
+  if t < 1 / 2.75 then
+    return 7.5625 * t * t
+  elseif t < 2 / 2.75 then
+    t = t - 1.5 / 2.75
+    return 7.5625 * t * t + 0.75
+  elseif t < 2.5 / 2.75 then
+    t = t - 2.25 / 2.75
+    return 7.5625 * t * t + 0.9375
+  else
+    t = t - 2.625 / 2.75
+    return 7.5625 * t * t + 0.984375
+  end
+end
+function this.inBounce(t) return 1 - this.outBounce(1 - t) end
+function this.inOutBounce(t)
+  if t < 0.5 then
+    return this.inBounce(t * 2) * 0.5
+  else
+    return this.outBounce(t * 2 - 1) * 0.5 + 0.5
+  end
+end
+
+function this.inSine(x)
+  return 1 - cos(x * (pi * 0.5))
+end
+
+function this.outSine(x)
+  return sin(x * (pi * 0.5))
+end
+
+function this.inOutSine(x)
+  return 0.5 - 0.5 * cos(x * pi)
+end
+
+return this

main.lua

@@ -0,0 +1,491 @@
+require 'const'
+require 'util'
+
+constr = require 'constructors'
+
+assets = require 'lib.assets'
+ease = require 'lib.ease'
+bench = require 'lib.benchmark'
+
+sprites = {}
+sound_path = {}
+music_path = {}
+
+debug = false
+
+food = {}
+feesh = {}
+
+local sheets = {}
+
+local function newAnimation(image, width, height)
+  local animation = {}
+  animation.spriteSheet = image;
+  animation.quads = {};
+  animation.width = width
+  animation.height = height
+
+  for y = 0, image:getHeight() - height, height do
+    for x = 0, image:getWidth() - width, width do
+      table.insert(animation.quads, love.graphics.newQuad(x, y, width, height, image:getDimensions()))
+    end
+  end
+
+  return animation
+end
+
+local function fishsprite(size, hungry, anim)
+  -- anim is turn, swim, eat or die
+  if anim == 'die' then hungry = false end
+
+  local spritename = size .. '_' .. (hungry and 'hungry_' or '') .. anim
+  local spr = sprites['fish/' .. spritename]
+  return newAnimation(spr, spr:getWidth()/10, spr:getHeight())
+end
+
+function love.load()
+  assets.clear()
+  assets.load('assets')
+
+  sheets.wavecenter = newAnimation(sprites['wave/wavecenter'], sprites['wave/wavecenter']:getWidth(), sprites['wave/wavecenter']:getHeight()/12)
+  sheets.waveside = newAnimation(sprites['wave/waveside'], sprites['wave/waveside']:getWidth(), sprites['wave/waveside']:getHeight()/12)
+
+  sheets.food1 = newAnimation(sprites['food/1'], sprites['food/1']:getWidth()/10, sprites['food/1']:getHeight())
+
+  for i = 1, 10 do
+    table.insert(feesh, constr.fish(math.random(), math.random()))
+  end
+end
+
+local frame = 0
+local unfocusinterval = 5
+function love.update(dt)
+  frame = frame + 1
+  bench.update()
+
+  bench.startBenchmark('update')
+  bench.startBenchmark('update_food')
+  local fishgoals = {}
+  for i,f in ipairs(food) do
+    f.y = f.y + dt * f.speed
+    f.time = f.time + dt
+    f.y = clamp(f.y, 0, 0.9)
+
+    if f.y == 0.9 then
+      f.deathtimer = f.deathtimer + dt
+    end
+
+    if f.goal == 0 or not f.goal then
+      for i,n in ipairs(feesh) do
+        if not fishgoals[i] and n.eattimer <= 0 then
+          f.goal = i
+        end
+      end
+    end
+
+    if f.deathtimer > 1 then
+      table.remove(food, i)
+    else
+      fishgoals[f.goal] = i
+    end
+  end
+  bench.stopBenchmark('update_food')
+
+  bench.startBenchmark('update_fish')
+  for fi, n in ipairs(feesh) do
+    bench.startBenchmark('update_fish_eases')
+    for _, e in ipairs(n.eases) do
+      e.a = e.a + dt * e.speed
+    end
+    for i, e in ipairs(n.eases) do
+      if e.a > 1 then
+        local sumx = 0
+        local sumy = 0
+        for i2, e2 in ipairs(n.eases) do
+          if i ~= i2 then
+            sumx = sumx + mix(e2.fromx, e2.x, FISH_EASE(math.min(e2.a, 1)))
+            sumy = sumy + mix(e2.fromy, e2.y, FISH_EASE(math.min(e2.a, 1)))
+          end
+        end
+
+        sumx = sumx + e.x
+        sumy = sumy + e.y
+
+        n.x = sumx / #n.eases
+        n.y = sumy / #n.eases
+        e.fromx = e.x
+        e.fromy = e.y
+
+        e.a = e.a - 1
+        
+        local angle = math.random(-FISH_ANGLE, FISH_ANGLE)
+        local str = math.random(70, 200)/200/4
+        if n.eattimer < -15 then
+          str = str * 1.3
+        end
+
+        if --[[love.mouse.isDown(1) or]] fishgoals[fi] then
+          local mx, my = love.mouse.getPosition()
+          mx = mx / love.graphics.getWidth()
+          my = my / love.graphics.getHeight()
+
+          if fishgoals[fi] and food[fishgoals[fi]] then
+            mx = food[fishgoals[fi]].x
+            my = food[fishgoals[fi]].y
+          end
+          angle = math.deg(math.atan2(my - n.y, mx - n.x)) + math.random(-FISH_FOLLOW_RANDOM, FISH_FOLLOW_RANDOM)
+        end
+
+        local x = math.cos(math.rad(angle)) * str
+        local y = math.sin(math.rad(angle)) * str
+
+        if not (--[[love.mouse.isDown(1) or ]]fishgoals[fi]) then
+          x = x * math.sign(n.render.x - n.render.prevx)
+        end
+
+        e.x = n.x + x
+        e.y = n.y + y
+
+        e.x = 1 - math.abs(e.x%2-1)
+        e.y = 1 - math.abs(e.y%2-1)
+
+        local fheight = (FOOTER_HEIGHT * love.graphics.getWidth()/640)/love.graphics.getHeight()
+        if e.y < fheight then
+          e.y = e.y + (fheight - e.y) * 2
+        end
+
+        e.speed = 1 / (math.sqrt(math.pow(math.abs(e.x - e.fromx), 2) + math.pow(math.abs(e.y - e.fromy), 2))/2) / 15
+      end
+    end
+    bench.stopBenchmark('update_fish_eases')
+
+    bench.startBenchmark('update_fish_position')
+    n.x = clamp(n.x, 0, 1)
+    n.y = clamp(n.y, 0, 0.5)
+
+    n.lifetime = n.lifetime + dt
+    n.eattimer = n.eattimer - dt
+
+    local sumx = 0
+    local sumy = 0
+    for _, e2 in ipairs(n.eases) do
+      sumx = sumx + mix(e2.fromx, e2.x, FISH_EASE(e2.a))
+      sumy = sumy + mix(e2.fromy, e2.y, FISH_EASE(e2.a))
+    end
+
+    n.render.prevx = n.render.x
+    n.render.prevy = n.render.y
+    n.render.x = sumx / #n.eases
+    n.render.y = sumy / #n.eases
+
+    n.render.x = clamp(n.render.x, 0.05, 0.95)
+    n.render.y = clamp(n.render.y, 0.1, 0.85)
+
+    if fishgoals[fi] and frame % FISH_COLISSION_CHECK_FREQ == 0 then
+      local f = food[fishgoals[fi]]
+      if f then
+        local dist = math.abs(n.render.x - f.x) + math.abs(n.render.y - f.y)
+
+        if dist < FOOD_HITBOX then 
+          table.remove(food, fishgoals[fi])
+          n.eattimer = FISH_FOOD_COOLDOWN
+          n.render.eattimer = 0
+
+          if n.lifetime > FISH_AGE_MEDIUM then
+            n.size = 1
+          end
+          if n.lifetime > FISH_AGE_BIG then
+            n.size = 2
+          end
+        end
+      end
+    end
+    bench.stopBenchmark('update_fish_position')
+
+    bench.startBenchmark('update_fish_render')
+    if frame % FISH_RENDER_FREQ == 0 then
+      local dt = dt * FISH_RENDER_FREQ
+
+      local iter = FISH_RENDER_ITERS
+      local iteroff = FISH_RENDER_ITEROFF
+      local xspeed = {}
+      local yspeed = {}
+      local angle = {}
+
+      local sumxiter = {}
+      local sumyiter = {}
+      for i = 1, iter do
+        local off = i * iteroff
+
+        local sumx2 = 0
+        local sumy2 = 0
+        for _, e2 in ipairs(n.eases) do
+          sumx2 = sumx2 + mix(e2.fromx, e2.x, FISH_EASE(e2.a + off))
+          sumy2 = sumy2 + mix(e2.fromy, e2.y, FISH_EASE(e2.a + off))
+        end
+        table.insert(xspeed, (sumx2 - (sumxiter[i - 1] or sumx)) / #n.eases)
+        table.insert(yspeed, (sumy2 - (sumyiter[i - 1] or sumy)) / #n.eases)
+        table.insert(angle, math.atan2(sumy2 - (sumyiter[i - 1] or sumy), sumx2 - (sumxiter[i - 1] or sumx)))
+
+        table.insert(sumxiter, sumx2)
+        table.insert(sumyiter, sumy2)
+      end
+
+      n.render.xspeed = sum(xspeed)
+      n.render.yspeed = sum(yspeed)
+      n.render.angle = sum(angle)
+    end
+
+    n.render.turn = n.render.turn + dt * math.sign(n.render.x - n.render.prevx) * 2
+    n.render.turn = clamp(n.render.turn, 0, 1)
+    if n.render.turn == 0 or n.render.turn == 1 then
+      n.render.swim = (n.render.swim + dt * math.abs(n.render.xspeed) * 100) % 1
+    else
+      n.render.swim = 0
+    end
+
+    n.render.eattimer = n.render.eattimer + dt * 3
+    if n.render.eattimer < 1 then
+      n.render.swim = 0
+    end
+
+    n.render.turndir = math.sign(n.render.x - n.render.prevx)
+
+    local m = n.eattimer < FISH_FOOD_HUNGRY and 1 or -1
+    n.render.hungry = clamp(n.render.hungry + dt * m * 3, 0, 1)
+
+    bench.stopBenchmark('update_fish_render')
+  end
+  bench.stopBenchmark('update_fish')
+  bench.stopBenchmark('update')
+end
+
+function love.draw()
+  bench.startBenchmark('render')
+
+  bench.startBenchmark('render_tank')
+  love.graphics.setColor(1, 1, 1)
+
+  local sw, sh = love.graphics.getDimensions()
+  local footerheight = FOOTER_HEIGHT * sw/640
+  local yscale = (sh-footerheight)/sh
+
+  local sample = fishsprite('medium', false, 'swim')
+  local spritescale = (math.min(sw, sh)/FISH_SIZE) / math.min(sample.width, sample.height)
+
+  stretchto(sprites['bg/1'], 0, footerheight - FOOTER_HEIGHT, 0, sw, sh - (footerheight - FOOTER_HEIGHT))
+
+  -- waves
+  bench.startBenchmark('render_wave')
+  local wavecount = round(sw / sprites['wave/wavecenter']:getWidth())
+  local wavescale = sw / (wavecount * sprites['wave/wavecenter']:getWidth())
+  for i = 1, wavecount do
+    local a = (i - 1) / wavecount
+    local x = a * sw
+    local frame = round((1 - math.abs(love.timer.getTime()%2-1)) * #sheets.wavecenter.quads)
+    love.graphics.setBlendMode('add')
+
+    local sheet = sheets.wavecenter
+    local sizex = 1
+    if i == 1 or i == wavecount then
+      sheet = sheets.waveside
+    end
+    if i == wavecount then
+      sizex = -1
+    end
+    love.graphics.draw(sheet.spriteSheet, sheet.quads[math.max(frame, 1)], x + (sprites['wave/wavecenter']:getWidth() * wavescale)/2, footerheight + 20, 0, wavescale * sizex, wavescale, sprites['wave/wavecenter']:getWidth()/2)
+  end
+  love.graphics.setBlendMode('alpha')
+  bench.stopBenchmark('render_wave')
+
+  -- shadow
+  bench.startBenchmark('render_shadow')
+  for i, n in ipairs(feesh) do
+    love.graphics.setColor(1, 1, 1, n.render.y + 0.2)
+    love.graphics.draw(sprites['shadow'], n.render.x * sw - (sprites['shadow']:getWidth() * spritescale)/2, sh - sh * 0.18 - (sprites['shadow']:getHeight() * spritescale)/2 + n.render.y * sh * 0.08, 0, spritescale, spritescale)
+  end
+  bench.stopBenchmark('render_shadow')
+  -- all the fish
+  bench.startBenchmark('render_fish')
+  for i, n in ipairs(feesh) do
+    local x = n.render.x * sw
+    local y = n.render.y * sh
+
+    -- rest of feesh
+    local size = 'small'
+    local anim = 'swim'
+
+    local sample = fishsprite('medium', false, 'swim')
+
+    local sizex = 1
+    local turn = n.render.turn
+    if n.render.turndir == -1 then turn = 1 - turn; sizex = -1 end
+
+    local turnframe = math.floor(turn * (#sample.quads - 1)) + 1
+    if #sample.quads == 10 then
+      sizex = -1 * sizex
+      turnframe = 1
+    end
+    
+    local frame = math.floor(n.render.swim * (#sample.quads - 1)) + 1
+
+    if turnframe ~= 1 and turnframe ~= 10 then
+      anim = 'turn'
+      frame = turnframe
+    end
+
+    if n.render.eattimer <= 1 then
+      anim = 'eat'
+      frame = math.floor(n.render.eattimer * (#sample.quads - 1)) + 1
+    end
+
+    local angle = n.render.angle
+    if angle > math.pi/2 then
+      angle = angle - math.pi
+    end
+    if angle < -math.pi/2 then
+      angle = angle + math.pi
+    end
+
+    angle = angle * math.max(math.min((-math.abs(angle) + math.pi * 0.5) / (math.pi * 0.5) * 2, 1), 0)
+    angle = angle * 0.5
+
+    if n.size == 0 then
+      size = 'small'
+    elseif n.size == 1 then
+      size = 'medium'
+    elseif n.size == 2 then
+      size = 'big'
+    elseif n.size == 3 then
+      size = 'king'
+    end
+
+    local sheet = fishsprite(size, false, anim)
+    local sadsheet = fishsprite(size, true, anim)
+
+    local alpha = n.render.hungry == 1 and 0 or 1
+    love.graphics.setColor(1, 1, 1, alpha)
+    love.graphics.draw(sheet.spriteSheet, sheet.quads[math.max(math.min(frame, #sample.quads), 1)], x, y, angle, sizex * spritescale, spritescale, sample.width/2, sample.height/2)
+    love.graphics.setColor(1, 1, 1, n.render.hungry)
+    love.graphics.draw(sadsheet.spriteSheet, sheet.quads[math.max(math.min(frame, #sample.quads), 1)], x, y, angle, sizex * spritescale, spritescale, sample.width/2, sample.height/2)
+
+    love.graphics.setColor(1, 1, 1)
+    if debug then love.graphics.print(shrt(n.eattimer), x + 20, y + 20) end
+
+    if debug then
+      for _,e in ipairs(n.eases) do
+        love.graphics.setColor(1, 0, 0, 0.75)
+        love.graphics.line(e.fromx * sw, e.fromy * sh, e.x * sw, e.y * sh)
+
+        love.graphics.setColor(0, 0, 1, 0.75)
+        love.graphics.line(mix(e.fromx, e.x, FISH_EASE(e.a)) * sw, mix(e.fromy, e.y, FISH_EASE(e.a)) * sh, n.render.x * sw, n.render.y * sh)
+      end
+
+      local subdiv = DEBUG_FISH_PATH_SUBDIVISIONS
+      local adv = DEBUG_FISH_PREDICT_AMOUNT
+      local pos = {}
+      local valid = {}
+
+      for i = 1, subdiv do
+        local a = ((i - 1) / (subdiv - 1)) * (adv * 2) - adv
+
+        local sumx = 0
+        local sumy = 0
+        local mina = 0
+        local maxa = 1
+        for _, e in ipairs(n.eases) do
+          local a = e.a + a
+          mina = math.min(mina, a)
+          maxa = math.max(maxa, a)
+          sumx = sumx + mix(e.fromx, e.x, FISH_EASE(a))
+          sumy = sumy + mix(e.fromy, e.y, FISH_EASE(a))
+        end
+    
+        table.insert(pos, sumx / #n.eases * sw)
+        table.insert(pos, sumy / #n.eases * sh)
+        table.insert(valid, not (maxa > 1 or mina < 0))
+      end
+
+      for i = 0, #pos/2 - 1 do
+        local x1 = pos[i * 2 + 1]
+        local y1 = pos[i * 2 + 1 + 1]
+        local x2 = pos[i * 2 + 2 + 1]
+        local y2 = pos[i * 2 + 3 + 1]
+        local valid = valid[i + 1]
+
+        if not x2 or not y2 then break end
+
+        love.graphics.setColor(0, 1, 0, 1)
+        if not valid then love.graphics.setColor(0, 0.5, 1, 0.7) end
+
+        love.graphics.line(x1, y1, x2, y2)
+      end
+    end
+  end
+  bench.stopBenchmark('render_fish')
+
+  bench.startBenchmark('render_food')
+  for _,f in ipairs(food) do
+    local sheet = sheets.food1
+    local x = f.x * sw
+    local y = f.y * sh
+    local frame = math.floor((f.time%1) * #sheet.quads) + 1
+
+    love.graphics.setColor(1, 1, 1, 1 - f.deathtimer)
+
+    love.graphics.draw(sheet.spriteSheet, sheet.quads[math.max(math.min(frame, #sheet.quads), 1)], x, y, 0, spritescale, spritescale, sheet.width/2, sheet.height/2)
+  end
+  bench.stopBenchmark('render_food')
+  bench.stopBenchmark('render_tank')
+  
+  bench.startBenchmark('render_footer')
+  local base = sprites['footer/base']
+  local size = footerheight / FOOTER_HEIGHT
+  love.graphics.setColor(1, 1, 1, 1)
+  love.graphics.draw(base, 0, 0, 0, size, size)
+
+  -- the game is making me do this. im sorry
+  local x = 19
+  for b = 1, 7 do
+    local hovered = mouseOverBox(x, 3, sprites['footer/buttonbg']:getWidth(), sprites['footer/buttonbg']:getHeight())
+    
+    if hovered and love.mouse.isDown(1) then
+      love.graphics.draw(sprites['footer/buttonbg_down'], x, 3)
+    elseif hovered then
+      love.graphics.draw(sprites['footer/buttonbg_hover'], x, 3)
+    else
+      love.graphics.draw(sprites['footer/buttonbg'], x, 3)
+    end
+
+    -- insert sprite of item here
+    -- insert price of item here
+    love.graphics.setBlendMode('add')
+    love.graphics.draw(sprites['footer/reflection'], x, 3)
+    love.graphics.setBlendMode('alpha')
+    -- insert closing/opening animation here
+
+    local incr = 69 -- its like button positions but forcefully shoved into a recursive function :D
+    if b == 2 then incr = 57 end
+    if b >= 3 then incr = 73 end
+    x = x + incr
+  end
+  bench.stopBenchmark('render_footer')
+
+  love.graphics.setColor(1, 1, 1, 1)
+  love.graphics.print('FPS: ' .. 1 / love.timer.getDelta(), 0, sh - 16)
+
+  if debug then bench.renderBenchmark() end
+  bench.stopBenchmark('render')
+end
+
+function love.mousepressed(x, y, b)
+  if b == 2 then
+    table.insert(food, constr.food(x/love.graphics.getWidth(), y/love.graphics.getHeight(), 1))
+  end
+end
+
+function love.keypressed(key)
+  if key == 'f3' then
+    debug = not debug
+  end
+end

util.lua

@@ -0,0 +1,58 @@
+function mix(x, y, a)
+  return x * (1 - a) + y * a
+end
+function clamp(a, x, y)
+  return math.min(math.max(a, x), y)
+end
+function round(x)
+  if x%1 >= 0.5 then return math.ceil(x) end
+  return math.floor(x)
+end
+function sum(tbl)
+  local sum = 0
+  for _,v in ipairs(tbl) do
+    sum = sum + v
+  end
+  return sum/#tbl
+end
+function shrt(num)
+  return math.floor(num * 10000) / 10000
+end
+
+function pointInside(px,py,x,y,w,h)
+  return px > x and px < x+w and py > y and py < y+h
+end
+
+function mouseOverBox(x,y,w,h)
+  return pointInside(love.mouse.getX(), love.mouse.getY(), x, y, w, h)
+end
+
+function stretchto(sprite, x, y, r, sx, sy, ox, oy)
+  love.graphics.draw(sprite, x, y, r, sx/sprite:getWidth(), sy/sprite:getHeight(), ox, oy)
+end
+function drawcenteredquad(sprite, quad, x, y, r, sx, sy, ox, oy)
+  local sw, sh = quad:getTextureDimensions()
+  love.graphics.draw(sprite, quad, x - (sw * (sx or 1))/2, y - (sh * (sy or 1))/2, r, sx, sy, (ox or 0) + sw/2, (oy or 0) + sh/2)
+end
+function drawcentered(sprite, x, y, r, sx, sy, ox, oy)
+  love.graphics.draw(sprite, x - (sprite:getWidth() * (sx or 1))/2, y - (sprite:getHeight() * (sy or 1))/2, r, sx, sy, (ox or 0) + sprite:getWidth()/2, (oy or 0) + sprite:getHeight()/2)
+end
+
+function table.deepcopy(orig)
+  local orig_type = type(orig)
+  local copy
+  if orig_type == 'table' then
+      copy = {}
+      for orig_key, orig_value in next, orig, nil do
+          copy[table.deepcopy(orig_key)] = table.deepcopy(orig_value)
+      end
+      setmetatable(copy, table.deepcopy(getmetatable(orig)))
+  else -- number, string, boolean, etc
+      copy = orig
+  end
+  return copy
+end
+
+function math.sign(a)
+  if a >= 0 then return 1 else return -1 end
+end