Unity2d game let characters move - Part 1

After watching the video of Mr. Mako's little fox , In order to consolidate the practice , I'll find another material bag to practice , By the way, write a tutorial to make yourself more proficient , At the same time, when you forget, you can look back . in addition , I wrote this tutorial in great detail , Mengxin can also learn . What's wrong or questionable , Welcome to correct and consult .

First, import the material

Then we can browse the material package first , One is Assets, One is the test scenario demo, We mainly look at Asset What's in it ,background Inside is our background picture ,Items It's all kinds of things ,Main Character What we store is our role , Here are four characters , Let's just use the first character ,Other It's something for color matching ,Terrain It's our terrain related material ,Traps There are many traps , Used to increase gameplay . That's all for the material package , In fact, the main purpose of this section is to make the characters move , So not many things are used , One is the role , Or is it terrain material .

Let's first put all the pictures of the character Pixels Per Unit（ Per unit pixel ） Such as 32, Because the material is 32 Pixels *32 Pixel

  Then create an empty component （Hierarchy Bar right button ->Create Empty） Name it player, Dexter transform Remember reset（ Reset ） once

  stay player Add a component called sprite Renderer（ Sprite renderer ）, This is the model used to add our characters

  Put the character's idle Drag the pose of the first frame of to the one just now sprite Render Inside Sprite

  So we create our characters , And you can Scene See our role in the column

  Then we simply set up the map

On the left hierachy Create a view tilemap,tilemap yes unity A plug-in for , It's very convenient for us to 2D Game editing work

  Name it platforms

  Then we go from Window->2D->Tile Palette Open up our tilemap The editing interface of

 Creat New Palette Create a new panel , Name it Map, The position can be placed by yourself , But for better management in the later stage, I created a folder for such things , stay project Bar right button creat You can create new Folder, We can create one here Map Folder for our tilemap

In the material package Terrain There are two in it png picture , These two are the basic materials we compiled , The first one seems to have no segmentation , So we use the second , Remember to put it on the right Inspector Change the pixels there to 16

  Then drag the picture directly to Tile Palette, Choose the location we created Map Folder

  go back to Hierarchy, Click on platforms, At this time, we can edit our terrain , go back to Tile Palette, Let's first add a simple platform , Choose... Directly Tile Palette The box inside is directly dragged to Scene Inside

  So our first platform is ready

We also need to give platforms Add a collider

We click platforms, Click... On the right Add Component（ Add the component ） Add one Collider Components , Search for tilemap collider 2D, Just choose .

  So we add a collision body to our terrain , This collider It can be used to detect whether there is a collision between objects , It can also be used as a trigger . Here we can simply think of adding collider Then the terrain has entities , Characters don't go straight through , And it can also respond to the corresponding collision event , For example, a character will trigger an event after touching the terrain , This event can be used to write animation of character jumping .

Since the terrain can be added collider, Then our characters can also add collider, We also add one to the character collider, What we add to the character is a circular collider , There is also a box collider called Box Collider 2D, We don't need this , Considering that the material has no squatting action and the box collision body is easy to get stuck with the terrain .

  And then we click Edit Collider Edit this circular collider , Adjust its size to a suitable position

 

  After we click Run, we can find that the character has stood on the platform

Then we need to move our characters , The role must have a force to move , And also respond to the trigger of our keys , This force is ours Rigidbody 2D, This component can add x Direction and y Directional force , In this way, the character can move , So we add this component to the role

  But remember in the constraints（ constraint ） There lock z Axis , Don't let z The shaft moves , because z If the axis moves, the character will roll

  There is also the trigger of the key ,Edit->Project Settings->Input Manager, So we enter the key setting

  Pull open Axed We can add or change the keys we want , Like this Horizontal, This is x Key position in axis direction ,a and d perhaps left and right,Vertical Namely y Key position in axis direction

It has already been bound for us , We don't need to make any changes

In order to make the character move, we have to add animation to the character

Create a folder called Animation To store animation resources

Right click in this folder ->create->Animation Create an animation named Idle

  Remember to check in the attribute bar Loop, Let's have Idle Animation loop

  And then put this Idle Dragged to us player, We will find an extra one named player Of Animator Controller

  At the same time player Of Inspector There is one more column Animator, We found that Animator Controller It has been automatically created and added for us , Is this very convenient

  And then we passed window->Animation, open Animation and Animator

  choice player, stay Animation There is only one column Idle Animation , We give this Idle Add animation sequence , We said that above , The character's animation is Main Character The folder Mask Dude Inside , choice Idle Drag all the pictures inside to Animation Inside the fence

  take Samples Change to 15, You can play the animation and try ,Samples The larger the size, the faster the playback speed

Empathy , We create a run Animation , choice player, stay Animation bar , spot idle Next you can create a new animation

  Name this new animation run, And then put run Drag the animation sequence of ,samples Change it to 20 Just go

  We have not only opened Animation bar , And opened Animator bar ,Animator What is the column for ,Animator It is used to switch animation , Open us Animator You can find two more States , One idle One is run, Let's right click idle,make transition Connected to the run, Again run It's the same thing , In this way, we can add some conditions to switch the two animations

 

  stay Parameters（ Parameters ） Click the plus sign there to add a variable as the switch between animations

Let's add a bool Variable representation run state

  So we idle and run The connection between them can set the conditions when they switch , Let's click idle toward run Arrows , We can set when to start idle Switch to run, Remember to put the property bar on the right Has Exit Time Uncheck the , And the settings Inside Transition Duration Set to 0, In the future, the connection between all animations should be set like this

  And then down there Conditions You can add conditions , We can judge run When true, from idle The state switches to run state

  from run State to idle The status setting is similar to the above

  By analogy , Let's create two more animations , And set the conditions for switching between them

Namely jump（ Take off ） Animation and fall（ whereabouts ） Animation , I won't explain it one by one here , Here the relevant operations are posted , But remember to go Animation In the folder jump and fall Two animated loop time Uncheck the , Playing these two animations once is enough

 

 

 Run->jump and idle->jump The conditions are the same , All are jump by true

 Jump->fall Is the condition of jump by false,fall by true

 Fall To idle Is the condition of fall by false

  In this way, we have finished the preparatory work besides the code .

Then let's start coding .

link ：unity2D The game makes the characters move - Next _ It's really okay duck's blog -CSDN Blog