Unity beginner 5 cameras follow, border control and simple particle control (2 d)

This article comes from the notes of teacher chutianbo, link b station

Camera

Don't ask, ask is brainless cinemachine (233, I only know this)
Click on the upper left corner of the window package manager to find the Unity Registry and directly find this plugin in the middle to download
After downloading, we are in HierachyRight-click to create and you can find this cinemachine.

Then directly follow the character you need to follow in Followjust

Camera Boundaries

After setting up, we will find that many of our voids will also come into view.
1. So we add the component Cinemachine Confiner2D to this CM vcm1 (that is, the camera created with cinemachine)
2. Create an empty GameObject and add the component polygon Collider 2D to it, and then pull the green frame to the requiredThe displayed map is the same.
3. Just pull the border into it

Particle Effects

1. Create right-click HierachyEffects particle System
About how to use emm for each button, the official link is given below

Here is a simple explosion effect

InitiallyOriginal material
1. Because it only takes a moment to hit the special effect,And the emitter should be a circle
2. So the time to explode the particle should be 0
3. At the same time no need to repeat

1. Then the first thing we do is to replace the particles, it can be seen that the particles we created at the beginning are white instead of the material we want,

So find the Texture module and change the mode to sprite to replace the material
2. Set the shape and find the shape module

Change the shape to circle, if it is 3d, it is hemisphere.
Radius is the radius of the circle.
Radius Thickness: The volume ratio of emitted particles.A value of 0 emits particles from the edge of the circle.A value of 1 emits particles from the entire area.Values ​​in between will use a percentage of the area.
Arc is the angle because it needs a circle and that is 360

In fact, I spent a lot of time doing this. In one, I changed the scale, which caused the circle to become a circle perpendicular to the interface. Generally speaking, 2d means that xy is 1.
3.Particle burst time

Find Emission to change Rate over TimeIt is 0, that is, it can explode in an instant

So far, our special effect is done, but one thing to mention is that if our special effect is placed on a moving object and needs to move with the object

We need to change the Simulation Space to World.
The effect is probably like this, the robot goes to the right, the smoke will be realEffect.

Code Control Effects

The example used here is the smoke effect of the robot above, which should be roughly the same

1. Expose particle effects properties
public ParticleSystem smoke;
2. Pull the finished effects into our public properties

(There is actually a bug here, that is, if we use this special effect as a child object of our robot first, then this special effect can only be accessed from under our child objectPull in, but not from our prefab, if it is pulled in from other places, then the code will be changed later)
3. Call in the function
//Choose one of two
smoke.Stop();
//
Destroy(smoke.gameObject);
If there is no error in the difference between these two functions, then the first is to let the particle life cycle end and then disappear, and the secondOne is to disappear directly, no matter how long the particle's life cycle is.

The Duration here is the life cycle

Linkunity official file: particle system
Materials used in this articleFrom unity store Ruby's adventure
linkunity official website