本文详细介绍了在Unity中实现Minecraft风格TNT爆炸效果的过程。通过自定义TNTBlockEntity类，利用协程控制爆炸延迟，并通过粒子系统和声音效果增强视觉冲击力。文章还展示了如何通过碰撞事件触发爆炸，以及如何处理爆炸范围内的方块破坏和实体受力。
项目地址：
https://github.com/Jin-Yuhan/MinecraftClone-Unity
由于内容过多，这里只大概介绍下Editor的方块编辑器与TNT爆炸的实现。(未来可能会写一系列教程，完整实现这个项目)
方块编辑器
使用方块编辑器可以快速地新建方块，仅通过Flags与其他参数的组合可以制作出许多具有不同行为的方块。复杂方块的逻辑通常只需要将其注册在预设的事件中。
示例：TNT爆炸的实现
思路：在TNT被点击时，将TNT临时转换为方块实体，开启协程短暂延迟后爆炸。 首先，编写TNTBlockEntity，它继承于BlockEntity，其中BlockEntity编写了方块最基本的物理碰撞逻辑(基于AABB)。
using
Minecraft
.
BlocksData
;
using
System
.
Collections
;
using
UnityEngine
;
using
System
.
Collections
.
Generic
;
namespace
Minecraft
{
[
DisallowMultipleComponent
]
public
sealed
class
TNTBlockEntity
:
BlockEntity
{
private
MaterialPropertyBlock
m_PropertyBlock
;
private
AudioSource
m_AudioSource
;
private
bool
m_Started
;
private
bool
m_ShouldRenderBlock
;
private
AudioClip
m_Fuse
;
private
AudioClip
m_Explode
;
private
GameObject
m_Effect
;
protected
override
MaterialPropertyBlock
MaterialPropertyBlock
=>
m_PropertyBlock
;
protected
override
bool
ShouldRenderBlock
=>
m_ShouldRenderBlock
;
protected
override
void
OnInitialize
(
)
{
m_PropertyBlock
=
new
MaterialPropertyBlock
(
)
;
m_AudioSource
=
gameObject
.
AddComponent
<
AudioSource
>
(
)
;
m_Started
=
false
;
m_ShouldRenderBlock
=
true
;
m_Fuse
=
Block
.
ExtraAssets
[
0
]
as
AudioClip
;
m_Explode
=
Block
.
ExtraAssets
[
1
]
as
AudioClip
;
m_Effect
=
Instantiate
(
Block
.
ExtraAssets
[
2
]
)
as
GameObject
;
m_AudioSource
.
clip
=
m_Fuse
;
m_AudioSource
.
Play
(
)
;
}
private
void
OnDestroy
(
)
{
Destroy
(
m_Effect
)
;
}
protected
override
void
OnCollisions
(
CollisionFlags
flags
)
{
if
(
!
m_Started
)
{
m_Started
=
true
;
StartCoroutine
(
Explode
(
)
)
;
}
}
private
IEnumerator
Explode
(
)
{
float
time
=
0
;
while
(
time
<
3
)
{
time
+=
Time
.
deltaTime
;
float
t
=
Mathf
.
Sin
(
time
*
Mathf
.
PI
*
3
)
;
Color
color
=
Color
.
Lerp
(
Color
.
grey
,
Color
.
white
,
t
)
;
m_PropertyBlock
.
SetColor
(
"_Color"
,
color
)
;
yield
return
null
;
}
int
radius
=
5
;
WorldManager
world
=
WorldManager
.
Active
;
EntityManager
entityManager
=
world
.
EntityManager
;
Vector3Int
pos
=
BlockPosition
;
int
x
=
pos
.
x
;
int
y
=
pos
.
y
;
int
z
=
pos
.
z
;
for
(
int
dx
=
-
radius
;
dx
<=
radius
;
dx
++
)
{
for
(
int
dz
=
-
radius
;
dz
<=
radius
;
dz
++
)
{
for
(
int
dy
=
-
radius
;
dy
<=
radius
;
dy
++
)
{
if
(
dx
*
dx
+
dy
*
dy
+
dz
*
dz
<=
radius
*
radius
)
{
Block
block
=
world
.
GetBlock
(
x
+
dx
,
y
+
dy
,
z
+
dz
)
;
if
(
block
.
HasAnyFlag
(
BlockFlags
.
IgnoreExplosions
)
)
continue
;
world
.
SetBlockType
(
x
+
dx
,
y
+
dy
,
z
+
dz
,
BlockType
.
Air
)
;
}
}
}
}
IEnumerator
<
Entity
>
iterator
=
entityManager
.
EnumerateEntities
(
)
;
while
(
iterator
.
MoveNext
(
)
)
{
Entity
entity
=
iterator
.
Current
;
Vector3
dir
=
entity
.
transform
.
position
-
pos
;
if
(
dir
.
sqrMagnitude
<=
radius
*
radius
)
{
float
vx
=
Random
.
Range
(
-
10f
,
10f
)
;
//[-10, 10]
float
vy
=
Random
.
Range
(
1
,
10f
)
;
float
vz
=
Random
.
Range
(
-
10f
,
10f
)
;
entity
.
Velocity
=
new
Vector3
(
vx
,
vy
,
vz
)
;
}
}
iterator
.
Dispose
(
)
;
yield
return
null
;
m_ShouldRenderBlock
=
false
;
m_AudioSource
.
clip
=
m_Explode
;
m_AudioSource
.
Play
(
)
;
ParticleSystem
particle
=
m_Effect
.
GetComponent
<
ParticleSystem
>
(
)
;
m_Effect
.
transform
.
position
=
transform
.
position
;
particle
.
Play
(
)
;
while
(
m_AudioSource
.
isPlaying
||
particle
)
{
yield
return
null
;
}
entityManager
.
DestroyEntity
(
this
)
;
}
}
}
实现方块的OnClick事件并注册
public
void
BlockEvent_OnCick_TNT
(
int
x
,
int
y
,
int
z
,
Block
block
)
{
WorldManager
world
=
WorldManager
.
Active
;
world
.
SetBlockType
(
x
,
y
,
z
,
BlockType
.
Air
)
;
TNTBlockEntity
tnt
=
world
.
EntityManager
.
CreateEntity
<
TNTBlockEntity
>
(
)
;
tnt
.
Initialize
(
x
,
y
,
z
,
block
)
;
}
最终效果 其他内容请移步Github查看源码。本项目没有使用ECS，物理、光照、网格计算都是手敲的，除了Entity以外其他对象基本都不是MonoBehavior(包括Chunk)，渲染是通过Graphics.DrawMesh方法实现。
扫一扫
9522
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
