local BaseRoom = require("rooms.base")
local Room = {}
Room.__index = Room
setmetatable(Room, { __index = BaseRoom })

function Room:new(asset)
  self = setmetatable(BaseRoom:new(asset), Room)

  self.treeMask = asset.imageLoader("tree_mask")
  self.treeShader = love.graphics.newShader [[
    extern float time;

    vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 screen_coords) {
      vec2 uv = texture_coords;
      float sway = sin(uv.y * 10.0 + time * 2.0) * 0.00125 * (1.0 - uv.y);
      uv.x += sway;
      return Texel(texture, uv) * color;
    }
  ]]

  self.cloudMask = asset.imageLoader("cloud_mask")
  self.cloudShader = love.graphics.newShader [[
    extern float time;

    vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 screen_coords) {
      vec2 uv = texture_coords;
      uv.x = mod(uv.x + time * 0.0075, 1.0);
      return Texel(texture, uv) * color;
    }
  ]]

  ParticlePlayer:play("leaves", 0, 150, { duration = 9999 })

  return self
end

function Room:drawBack()
  self:drawBackground()
  self:drawShaderWithMask(self.treeShader, self.treeMask)
  self:drawShaderWithMask(self.cloudShader, self.cloudMask)
end

function Room:drawFront()
end

return Room