sound_and_music.nelua

--[[
Copyright (c) 2021-present André Luiz Alvares
Nene is licensed under the Zlib license.
Please refer to the LICENSE file for details
SPDX-License-Identifier: Zlib
]]

local math = require 'math'

local Nene = require 'nene.core'
local Color = require 'nene.color'
local Sound = require 'nene.audio.sound'
local Music = require 'nene.audio.music'

local function audio_and_music()
  -- nene initialization and deferred de-initialization with to-be-closed variable
  local ok = Nene.init('nene audio and music', 128, 128)
  assert(ok, 'error: nene initialization failed')

  defer Nene.terminate() end

  -- sound and music loading and deferred destroyment
  local ok, click = Sound.load('../../resources/pixelclick.wav')
  assert(ok , 'could not load pixelclick sound')
  
  local ok, bossa = Music.load('../../resources/8bit Bossa.ogg') 
  assert(ok, 'could not load 8bit Bossa music')

  defer
    click:destroy()
    bossa:destroy()
  end

  local mus_volume, click_volume = 1.0, 1.0

  bossa:play()

  repeat
    Nene.update()

    if Nene.is_scancode_pressed(SDL_SCANCODE_P) then
      mus_volume = math.clamp(mus_volume + 0.1, 0.0, 1.0)
      Music.set_volume(mus_volume)
    elseif Nene.is_scancode_pressed(SDL_SCANCODE_O) then
      mus_volume = math.clamp(mus_volume - 0.1, 0.0, 1.0)
      Music.set_volume(mus_volume)
    end

    if Nene.is_scancode_pressed(SDL_SCANCODE_M) then
      click_volume = math.clamp(click_volume + 0.1, 0.0, 1.0)
      click:set_volume(click_volume)
    elseif Nene.is_scancode_pressed(SDL_SCANCODE_N) then
      click_volume = math.clamp(click_volume - 0.1, 0.0, 1.0)
      click:set_volume(click_volume)
    end

    if Nene.is_scancode_pressed(SDL_SCANCODE_SPACE) or Nene.is_mouse_button_pressed(1) then
      click:play()
    end

    Nene.render_clear(Color.bg)

    Nene.render_present()
  until Nene.should_quit()
end

audio_and_music()