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LTMorphingLabel+Anvil.swift
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LTMorphingLabel+Anvil.swift
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//
// LTMorphingLabel+Anvil.swift
// https://github.com/lexrus/LTMorphingLabel
//
// The MIT License (MIT)
// Copyright (c) 2017 Lex Tang, http://lexrus.com
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files
// (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
import UIKit
extension LTMorphingLabel {
@objc
func AnvilLoad() {
startClosures["Anvil\(LTMorphingPhases.start)"] = {
self.emitterView.removeAllEmitters()
guard self.newRects.count > 0 else { return }
let centerRect = self.newRects[Int(self.newRects.count / 2)]
_ = self.emitterView.createEmitter(
"leftSmoke",
particleName: "Smoke",
duration: 0.6
) { (layer, cell) in
layer.emitterSize = CGSize(width: 1, height: 1)
layer.emitterPosition = CGPoint(
x: centerRect.origin.x,
y: centerRect.origin.y + centerRect.size.height / 1.3)
layer.renderMode = .unordered
cell.emissionLongitude = CGFloat(Double.pi / 2)
cell.scale = self.font.pointSize / 90.0
cell.scaleSpeed = self.font.pointSize / 130
cell.birthRate = 60
cell.velocity = CGFloat(80 + Int(arc4random_uniform(60)))
cell.velocityRange = 100
cell.yAcceleration = -40
cell.xAcceleration = 70
cell.emissionLongitude = CGFloat(-Double.pi / 2)
cell.emissionRange = CGFloat(Double.pi / 4) / 5.0
cell.lifetime = self.morphingDuration * 2.0
cell.spin = 10
cell.alphaSpeed = -0.5 / self.morphingDuration
}
_ = self.emitterView.createEmitter(
"rightSmoke",
particleName: "Smoke",
duration: 0.6
) { (layer, cell) in
layer.emitterSize = CGSize(width: 1, height: 1)
layer.emitterPosition = CGPoint(
x: centerRect.origin.x,
y: centerRect.origin.y + centerRect.size.height / 1.3)
layer.renderMode = .unordered
cell.emissionLongitude = CGFloat(Double.pi / 2)
cell.scale = self.font.pointSize / 90.0
cell.scaleSpeed = self.font.pointSize / 130
cell.birthRate = 60
cell.velocity = CGFloat(80 + Int(arc4random_uniform(60)))
cell.velocityRange = 100
cell.yAcceleration = -40
cell.xAcceleration = -70
cell.emissionLongitude = CGFloat(Double.pi / 2)
cell.emissionRange = CGFloat(-Double.pi / 4) / 5.0
cell.lifetime = self.morphingDuration * 2.0
cell.spin = -10
cell.alphaSpeed = -0.5 / self.morphingDuration
}
_ = self.emitterView.createEmitter(
"leftFragments",
particleName: "Fragment",
duration: 0.6
) { (layer, cell) in
layer.emitterSize = CGSize(
width: self.font.pointSize,
height: 1
)
layer.emitterPosition = CGPoint(
x: centerRect.origin.x,
y: centerRect.origin.y + centerRect.size.height / 1.3
)
cell.scale = self.font.pointSize / 90.0
cell.scaleSpeed = self.font.pointSize / 40.0
cell.color = self.textColor.cgColor
cell.birthRate = 60
cell.velocity = 350
cell.yAcceleration = 0
cell.xAcceleration = CGFloat(10 * Int(arc4random_uniform(10)))
cell.emissionLongitude = CGFloat(-Double.pi / 2)
cell.emissionRange = CGFloat(Double.pi / 4) / 5.0
cell.alphaSpeed = -2
cell.lifetime = self.morphingDuration
}
_ = self.emitterView.createEmitter(
"rightFragments",
particleName: "Fragment",
duration: 0.6
) { (layer, cell) in
layer.emitterSize = CGSize(
width: self.font.pointSize,
height: 1
)
layer.emitterPosition = CGPoint(
x: centerRect.origin.x,
y: centerRect.origin.y + centerRect.size.height / 1.3)
cell.scale = self.font.pointSize / 90.0
cell.scaleSpeed = self.font.pointSize / 40.0
cell.color = self.textColor.cgColor
cell.birthRate = 60
cell.velocity = 350
cell.yAcceleration = 0
cell.xAcceleration = CGFloat(-10 * Int(arc4random_uniform(10)))
cell.emissionLongitude = CGFloat(Double.pi / 2)
cell.emissionRange = CGFloat(-Double.pi / 4) / 5.0
cell.alphaSpeed = -2
cell.lifetime = self.morphingDuration
}
_ = self.emitterView.createEmitter(
"fragments",
particleName: "Fragment",
duration: 0.6
) { (layer, cell) in
layer.emitterSize = CGSize(
width: self.font.pointSize,
height: 1
)
layer.emitterPosition = CGPoint(
x: centerRect.origin.x,
y: centerRect.origin.y + centerRect.size.height / 1.3)
cell.scale = self.font.pointSize / 90.0
cell.scaleSpeed = self.font.pointSize / 40.0
cell.color = self.textColor.cgColor
cell.birthRate = 60
cell.velocity = 250
cell.velocityRange = CGFloat(Int(arc4random_uniform(20)) + 30)
cell.yAcceleration = 500
cell.emissionLongitude = 0
cell.emissionRange = CGFloat(Double.pi / 2)
cell.alphaSpeed = -1
cell.lifetime = self.morphingDuration
}
}
progressClosures["Anvil\(LTMorphingPhases.progress)"] = {
(index: Int, progress: Float, isNewChar: Bool) in
if !isNewChar {
return min(1.0, max(0.0, progress))
}
let j = Float(sin(Float(index))) * 1.7
return min(1.0, max(0.0001, progress + self.morphingCharacterDelay * j))
}
effectClosures["Anvil\(LTMorphingPhases.disappear)"] = {
char, index, progress in
return LTCharacterLimbo(
char: char,
rect: self.previousRects[index],
alpha: CGFloat(1.0 - progress),
size: self.font.pointSize,
drawingProgress: 0.0)
}
effectClosures["Anvil\(LTMorphingPhases.appear)"] = {
char, index, progress in
var rect = self.newRects[index]
if progress < 1.0 {
let easingValue = LTEasing.easeOutBounce(progress, 0.0, 1.0)
rect.origin.y = CGFloat(Float(rect.origin.y) * easingValue)
}
if progress > self.morphingDuration * 0.5 {
let end = self.morphingDuration * 0.55
self.emitterView.createEmitter(
"fragments",
particleName: "Fragment",
duration: 0.6
) { (_, _) in }.update { (layer, _) in
if progress > end {
layer.birthRate = 0
}
}.play()
self.emitterView.createEmitter(
"leftFragments",
particleName: "Fragment",
duration: 0.6
) { (_, _) in }.update { (layer, _) in
if progress > end {
layer.birthRate = 0
}
}.play()
self.emitterView.createEmitter(
"rightFragments",
particleName: "Fragment",
duration: 0.6
) { (_, _) in }.update { (layer, _) in
if progress > end {
layer.birthRate = 0
}
}.play()
}
if progress > self.morphingDuration * 0.63 {
let end = self.morphingDuration * 0.7
self.emitterView.createEmitter(
"leftSmoke",
particleName: "Smoke",
duration: 0.6
) { (_, _) in }.update { (layer, _) in
if progress > end {
layer.birthRate = 0
}
}.play()
self.emitterView.createEmitter(
"rightSmoke",
particleName: "Smoke",
duration: 0.6
) { (_, _) in }.update { (layer, _) in
if progress > end {
layer.birthRate = 0
}
}.play()
}
return LTCharacterLimbo(
char: char,
rect: rect,
alpha: CGFloat(self.morphingProgress),
size: self.font.pointSize,
drawingProgress: CGFloat(progress)
)
}
}
}