From 2d7eb36117ab5f30fddeba613491b8d83eec344c Mon Sep 17 00:00:00 2001
From: jiuxingwang <jiuxingwang@sohu-inc.com>
Date: Wed, 19 Apr 2023 14:30:47 +0800
Subject: [PATCH] feature: pause/recover a certain barrage

---
 BarrageRenderer/BarrageSprite/BarrageSprite.h |  2 ++
 BarrageRenderer/BarrageSprite/BarrageSprite.m |  8 +++++-
 .../BarrageSprite/BarrageSpriteProtocol.h     |  2 +-
 .../CommonBarrage/CommonBarrageController.m   | 25 ++++++++++++++++---
 README.md                                     |  2 +-
 5 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/BarrageRenderer/BarrageSprite/BarrageSprite.h b/BarrageRenderer/BarrageSprite/BarrageSprite.h
index 804990e..c572fe9 100644
--- a/BarrageRenderer/BarrageSprite/BarrageSprite.h
+++ b/BarrageRenderer/BarrageSprite/BarrageSprite.h
@@ -78,6 +78,8 @@ extern NSString * const kBarrageRendererContextTimestamp;     // 时间戳
 /// 强制性大小,默认为CGSizeZero,大小自适应; 否则使用mandatorySize的值来设置view大小
 @property(nonatomic,assign)CGSize mandatorySize;
 
+@property (nonatomic, assign) BOOL pause;
+
 #pragma mark - called, part of lifecycle
 
 /// 结合相关上下文激活精灵; 如要覆盖, 请要先调用super方法
diff --git a/BarrageRenderer/BarrageSprite/BarrageSprite.m b/BarrageRenderer/BarrageSprite/BarrageSprite.m
index 0fde68d..0bb59c9 100644
--- a/BarrageRenderer/BarrageSprite/BarrageSprite.m
+++ b/BarrageRenderer/BarrageSprite/BarrageSprite.m
@@ -62,6 +62,12 @@ - (instancetype)init
 
 - (void)updateWithTime:(NSTimeInterval)time
 {
+    if (_pause) {
+        _timestamp = time;
+        _origin = self.view.frame.origin;
+        return;
+    }
+    
     _valid = !self.forcedInvalid && [self validWithTime:time];
     _view.frame = [self rectWithTime:time];
     if ([_view respondsToSelector:@selector(updateWithTime:)]) {
@@ -140,7 +146,7 @@ - (UIGestureRecognizer *)tapGestureRecognizer
 
 - (void)clickSpriteView
 {
-    if (self.clickAction) self.clickAction(self.viewParams);
+    if (self.clickAction) self.clickAction(self, self.viewParams);
 }
 
 ///  区域内的初始位置,只在刚加入渲染器的时候被调用;子类继承需要override.
diff --git a/BarrageRenderer/BarrageSprite/BarrageSpriteProtocol.h b/BarrageRenderer/BarrageSprite/BarrageSpriteProtocol.h
index a3234a4..0f1b181 100644
--- a/BarrageRenderer/BarrageSprite/BarrageSpriteProtocol.h
+++ b/BarrageRenderer/BarrageSprite/BarrageSpriteProtocol.h
@@ -27,7 +27,7 @@
 #import <Foundation/Foundation.h>
 #import <UIKit/UIKit.h>
 
-typedef void(^BarrageClickAction)(NSDictionary *params);
+typedef void(^BarrageClickAction)(id sprite, NSDictionary *params);
 
 /// UIView 弹幕协议
 @protocol BarrageViewProtocol <NSObject>
diff --git a/BarrageRendererDemo/BarrageRendererDemo/CommonBarrage/CommonBarrageController.m b/BarrageRendererDemo/BarrageRendererDemo/CommonBarrage/CommonBarrageController.m
index 2caf840..7a5cdf5 100644
--- a/BarrageRendererDemo/BarrageRendererDemo/CommonBarrage/CommonBarrageController.m
+++ b/BarrageRendererDemo/BarrageRendererDemo/CommonBarrage/CommonBarrageController.m
@@ -145,7 +145,7 @@ - (BarrageDescriptor *)walkTextSpriteDescriptorWithDirection:(BarrageWalkDirecti
     descriptor.params[@"speed"] = @(100 * (double)random()/RAND_MAX+50);
     descriptor.params[@"direction"] = @(direction);
     descriptor.params[@"side"] = @(side);
-    descriptor.params[@"clickAction"] = ^(NSDictionary *params){
+    descriptor.params[@"clickAction"] = ^(id sprite, NSDictionary *params) {
         NSString *msg = [NSString stringWithFormat:@"弹幕 %@ 被点击",params[@"bizMsgId"]];
         UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"提示" message:msg delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:nil];
         [alertView show];
@@ -168,9 +168,26 @@ - (BarrageDescriptor *)avatarBarrageViewSpriteDescriptorWithDirection:(BarrageWa
     descriptor.params[@"viewClassName"] = NSStringFromClass([AvatarBarrageView class]);
     descriptor.params[@"titles"] = (_index%2) ? titles1: titles2;
     
-    __weak BarrageRenderer *render = _renderer;
-    descriptor.params[@"clickAction"] = ^(NSDictionary *params){
-        [render removeSpriteWithIdentifier:params[@"identifier"]];
+    __weak typeof(self) weakSelf = self;
+    descriptor.params[@"clickAction"] = ^(id sprite, NSDictionary *params) {
+        __strong typeof(weakSelf) strongSelf = weakSelf;
+        if (nil == strongSelf) {
+            return;
+        }
+        
+        ((BarrageSprite *)sprite).pause = YES;
+        
+        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"被点击了！！" message:@"妖怪哪里跑？" preferredStyle:UIAlertControllerStyleAlert];
+        [alert addAction:[UIAlertAction actionWithTitle:@"继续飞" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
+            ((BarrageSprite *)sprite).pause = NO;
+        }]];
+        
+        [alert addAction:[UIAlertAction actionWithTitle:@"删除" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
+            ((BarrageSprite *)sprite).pause = NO;
+            [strongSelf->_renderer removeSpriteWithIdentifier:params[@"identifier"]];
+        }]];
+        
+        [strongSelf presentViewController:alert animated:YES completion:nil];
     };
     
     return descriptor;
diff --git a/README.md b/README.md
index a22c722..b111c52 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,7 @@
 
 ``` objective-c
     __weak BarrageRenderer *render = _renderer;
-    descriptor.params[@"clickAction"] = ^(NSDictionary *params){
+    descriptor.params[@"clickAction"] = ^(id sprite, NSDictionary *params){
         [render removeSpriteWithIdentifier:params[@"identifier"]];
     };
 ```