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avatar.lua
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avatar.lua
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local Camera = require 'ext.hump.camera'
local tween = require 'ext.tween'
local config = require 'config'
local audio = require 'audio'
local avatar = {
camera = nil,
-- image frames
frames = {
open_closed = nil,
open_open = nil,
closed_closed = nil,
closed_open = nil,
scream = nil,
sleep = nil
},
current_frame = nil,
position = {
x = 0,
y = 0
},
tween = nil,
-- sleep trackers
sleepDirection = 0,
isSleeping = false,
sleepStart = 0,
sleepEnd = 0,
-- blink trackers
do_blink = false,
blink_time = 0,
blink_end_time = 0,
-- talk trackers
talk_type = 0,
talk_end_time = 0,
shake_end_time = 0,
}
setmetatable(avatar, avatar)
local function default_position()
return {
x = config.data.offsetx or 0,
y = config.data.offsety or 0
}
end
function avatar:update_offsets()
self.tween = nil
self.position.x = config.data.offsetx
self.position.y = config.data.offsety
end
function avatar:sleepToggle()
self.isSleeping = not self.isSleeping
if self.isSleeping then
local tmpPos = default_position()
tmpPos.y = tmpPos.y - config.data.sleep_distance
self.position = default_position()
self.position.y = self.position.y + config.data.sleep_distance
self.sleepDirection = 0
self:startSleep(tmpPos)
self.sleepStart = copy_table(tmpPos)
self.sleepEnd = copy_table(self.position)
else
self.tween = nil
self:update_offsets()
end
end
function avatar:startSleep(endPosition)
self.tween = tween.new(config.data.sleep_lerp_speed, self.position, endPosition, 'inOutQuad')
end
function avatar:updateShake(mag)
local t = love.timer.getTime() * 1000
if t - self.shake_end_time > config.data.shake_delay then
self.shake_end_time = t + config.data.shake_delay
self.position.x = love.math.random(-mag, mag) + default_position().x
self.position.y = love.math.random(-mag, mag) + default_position().y
self.tween = tween.new(config.data.shake_lerp_speed, self.position, default_position(),
config.data.shake_type)
end
end
-- determines which image frame we should use
function avatar:getFrame(amplitude)
local frame = nil
local lastTalk = timeMS() - self.talk_end_time
if self.isSleeping then
return self.frames.sleep
end
-- check for talk decay
if lastTalk < config.data.decay_time then
-- always update on scream since its highest state
if (amplitude > config.data.scream_threshold or self.talk_type == 1) and config.data.scream_enabled and
config.data.talk_enabled
then
-- screaming
frame = self.frames.scream
self.talk_type = 1
-- only update talk time if were still reaching the threshold
if amplitude > config.data.scream_threshold then
self.talk_end_time = timeMS() + config.data.decay_time
if config.data.shake_enabled then
self:updateShake(amplitude * config.data.scream_shake_scale)
end
end
elseif amplitude > config.data.talk_threshold or self.talk_type == 0 then
-- if were not decaying screaming, update talk if needed
-- talking
if config.data.talk_enabled then
frame = self.do_blink and self.frames.closed_open or self.frames.open_open
else
frame = self.do_blink and self.frames.closed_closed or self.frames.open_closed
end
self.talk_type = 0
-- only update talk time if were still reaching the threshold
if amplitude > config.data.talk_threshold then
self.talk_end_time = timeMS() + config.data.decay_time
if config.data.shake_enabled then
self:updateShake(amplitude * config.data.shake_scale)
end
end
end
else
-- not decaying, update
if amplitude > config.data.scream_threshold and config.data.scream_enabled then
-- screaming
frame = self.frames.scream
self.talk_end_time = timeMS() + config.data.decay_time
self.talk_type = 1
if config.data.shake_enabled then
self:updateShake(amplitude * config.data.scream_shake_scale)
end
elseif amplitude > config.data.talk_threshold then
-- talking
if config.data.talk_enabled then
frame = self.do_blink and self.frames.closed_open or self.frames.open_open
else
frame = self.do_blink and self.frames.closed_closed or self.frames.open_closed
end
self.talk_end_time = timeMS() + config.data.decay_time
self.talk_type = 0
if config.data.shake_enabled then
self:updateShake(amplitude * config.data.shake_scale)
end
else
-- quiet
frame = self.do_blink and self.frames.closed_closed or self.frames.open_closed
end
end
return frame
end
function avatar:init()
self.frames.open_closed = config:get_image('open_closed')
self.frames.open_open = config:get_image('open_open')
self.frames.closed_closed = config:get_image('closed_closed')
self.frames.closed_open = config:get_image('closed_open')
self.frames.scream = config:get_image('scream')
self.frames.sleep = config:get_image('sleep')
self.position = default_position();
self.camera = Camera(self.position.x, self.position.y)
end
function avatar:reload_frame(key)
avatar.frames[key] = config:get_image(key)
end
function avatar:checkBlink()
if timeMS() - self.blink_time >= config.data.blink_delay then
if love.math.random() * 100 <= config.data.blink_chance then
-- we blink, add delay before we can blink again
self.blink_end_time = timeMS() + config.data.blink_duration
self.blink_time = timeMS() + config.data.blink_delay
self.do_blink = true
else
-- we no blink, add delay before trying again
self.blink_time = timeMS() + config.data.blink_delay * 2
end
end
-- check if still blinking
if self.do_blink == false and timeMS() - self.blink_end_time < config.data.blink_duration then
self.do_blink = true
end
end
function avatar:update(dt)
self.do_blink = false
if config.data.blink_enabled then
self:checkBlink()
end
-- get current frame
self.current_frame = self:getFrame(audio:getMicAmplitude())
-- easing
local completedTween = false
if self.tween ~= nil then
completedTween = self.tween:update(dt * 1000) -- update image tween in msec
end
-- reverse direction so avatar bobs
if self.isSleeping and (self.tween == nil or completedTween) then
local tmp = {}
if self.sleepDirection == 0 then
tmp = copy_table(self.sleepEnd)
self.sleepDirection = 1
else
tmp = copy_table(self.sleepStart)
self.sleepDirection = 0
end
self:startSleep(tmp)
end
-- camera
local dx, dy = self.position.x - self.camera.x, self.position.y - self.camera.y
self.camera:move(dx, dy)
self.camera:zoomTo(config.data.zoom)
end
function avatar:draw()
self.camera:attach()
local frame = self.current_frame == nil and self.frames.open_closed or self.current_frame
if frame ~= nil then
love.graphics.draw(frame,
love.graphics.getWidth() / 2,
love.graphics.getHeight() / 2,
0)
end
self.camera:detach()
end
function avatar:shutdown()
end
return avatar