目前枪械系统的功能列表如下
捡枪的功能实现图如下
IGunSystem需要支持枪械的数据能够缓存起来，这个缓存机制在未来还要支持切换枪的功能。
我们使用Queue（先入先出）来缓存枪械，不过只能单向切枪。数据结构的选取需要考虑数据是否不断变化和数据是否频繁查询。
修改IGunSystem
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
| using FrameWorkDesign;
using System.Collections.Generic;
using System.Linq;
namespace ShootingEditor2D
{
interface IGunSystem : ISystem
{
GunInfo CurrentGun { get; }
void PickGun(string name, int ammoNumInGun, int bulletCountOutGun);
}
public class OnCurrrentGunChanged
{
public string Name { get; set; }
}
public class GunSystem : AbstractSystem, IGunSystem
{
private Queue<GunInfo> mGunInfos = new Queue<GunInfo>();
public void PickGun(string name, int ammoNumInGun, int bulletCountOutGun)
{
if (CurrentGun.Name.Value == name)
{
CurrentGun.BulletCountOutGun.Value += ammoNumInGun;
CurrentGun.BulletCountOutGun.Value += bulletCountOutGun;
}
else if (mGunInfos.Any(gunInfo => gunInfo.Name.Value == name))
{
var gunInfo = mGunInfos.First(gunInfo => gunInfo.Name.Value == name);
gunInfo.BulletCountOutGun.Value += ammoNumInGun;
gunInfo.BulletCountOutGun.Value += bulletCountOutGun;
}
else
{
var currentGunInfo = new GunInfo()
{
AmmoNumInGun = new BindableProperty<int>()
{
Value = CurrentGun.AmmoNumInGun.Value
},
BulletCountOutGun = new BindableProperty<int>()
{
Value = CurrentGun.BulletCountOutGun.Value
},
Name = new BindableProperty<string>()
{
Value = CurrentGun.Name.Value
},
State = new BindableProperty<GunState>()
{
Value = GunState.Idle
}
};
mGunInfos.Enqueue(currentGunInfo);
CurrentGun.Name.Value = name;
CurrentGun.AmmoNumInGun.Value = ammoNumInGun;
CurrentGun.BulletCountOutGun.Value = bulletCountOutGun;
this.SendEvent(new OnCurrrentGunChanged() { Name = name });
}
}
}
}
|
添加PickGunCommand
在Command文件夹里面新建PickGunCommand文件
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
| using FrameWorkDesign;
namespace ShootingEditor2D
{
public class PickGunCommand : AbstractCommand
{
private readonly string mName;
private readonly int mAmmoNumInGun;
private readonly int mBulletCountOutGun;
public PickGunCommand(string name, int ammoNumInGun, int bulletCountOutGun)
{
mName = name;
mAmmoNumInGun = ammoNumInGun;
mBulletCountOutGun = bulletCountOutGun;
}
protected override void OnExecute()
{
this.GetSystem<IGunSystem>()
.PickGun(mName,mAmmoNumInGun,mBulletCountOutGun);
}
}
}
|
测试
我们可以修改Player脚本来测试一下目前的代码
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
| using UnityEngine;
using FrameWorkDesign;
namespace ShootingEditor2D
{
public class Player : MonoBehaviour,IController
{
private void Update()
{
if (Input.GetKeyDown(KeyCode.P))
{
this.SendCommand(new PickGunCommand("冲锋枪", 30, 100));
}
}
public IArchitecture GetArchitecture()
{
return ShootingEditor2D.Interface;
}
}
}
|
打开游戏按下P键，可以发现换枪成功，但是有一些UI没有更新
修改UIController
为了解决UI问题，我们直接在Awake方法里面添加监听。我们的MaxBulletCountQuery引用的是GunConfigModel里面的地址，而当CurrentGun改变时此地址在内存的位置不会改变，依然显示的是之前的枪的MaxBulletCount，所以我们需要再进行一次查询来更新内存地址
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
| using UnityEngine;
using FrameWorkDesign;
using System;
namespace ShootingEditor2D
{
public class UIController : MonoBehaviour,IController
{
private int m_MaxBulletCount;
private void Awake()
{
m_MaxBulletCount = this.SendQuery(new MaxBulletCountQuery(m_GunSystem.CurrentGun.Name.Value));
this.RegisterEvent<OnCurrrentGunChanged>(e =>
{
m_MaxBulletCount = this.SendQuery(new MaxBulletCountQuery(e.Name));
}).UnregisterWhenGameObjectDestroyed(gameObject);
}
}
}
|
创建捡枪脚本
我们现在场景中创建一个2D Object——Sprites——Circle，命名为GunPickItem，给它挂载Circle Collider 2D，并勾选is Trigger。
在Scripts——ViewController——Gameplay文件夹内新建GunPickItem脚本，并把这个脚本挂载在GunPickItem上
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
| using UnityEngine;
using FrameWorkDesign;
namespace ShootingEditor2D
{
public class GunPickItem : MonoBehaviour,IController
{
public string gunName = "手枪";
public int ammoNumInGun = 1;
public int bulletCountOutGun = 1;
public IArchitecture GetArchitecture()
{
return ShootingEditor2D.Interface;
}
private void OnTriggerEnter2D(Collider2D collision)
{
if (collision.CompareTag("Player"))
{
this.SendCommand(new PickGunCommand(gunName,ammoNumInGun,bulletCountOutGun));
Destroy(gameObject);
}
}
}
}
|
将Player脚本里用于测试的代码删掉
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
| using UnityEngine;
using FrameWorkDesign;
namespace ShootingEditor2D
{
public class Player : MonoBehaviour,IController
{
private void Update()
{
if (Input.GetKeyDown(KeyCode.P))
{
this.SendCommand(new PickGunCommand("冲锋枪", 30, 100));
}
}
}
}
|
