One 、 Preface

Because of the game design , The scene is large , And the final player after playing the relevant game , Still need to go back to the central point for other activities , Simply use a small map that shows only part of the scene , It may make it difficult for players to find the center point in the scene , Affect game efficiency .

Two 、 Making a little map

1. Map making

Map making

2. Small map beautification

Add related masks and buttons , At the same time, add a image, Drag in the picture of the small arrow , Represents the character indication on the small map

3、 ... and 、 The small map shows the movement and direction of the protagonist

Add a script

void Update () {
        minicamera.transform.position = new Vector3(player.position.x, minicamera.transform.position.y, player.position.z);
        miniplayerIcon.eulerAngles = new Vector3(0, 0, -player.eulerAngles.y);
    }

Put the camera of the small map 、 figure 、 Arrow assignment

The final result is as follows , When the character turns , The arrow will also rotate

Four 、 Zoom in on the small map 、 narrow

Prior knowledge ：
The camera

On the small map ±image add to button Components

Add a function to change the size of the map

public void ChangeMapSize(float value)
    {
        mapSize += value;
        mapSize = Mathf.Clamp(mapSize, minSize, maxSize);
        minicamera.orthographicSize = mapSize;
    }
}

Increase the camera maximum and minimum limits

    public float minSize;// Mini Map orthographicSize minimum value 
    public float maxSize; // Mini Map orthographicSize Maximum 

The value passed in on the button ,-+ The buttons of the symbol are positive and negative numbers respectively . Value customization

final result ：

Click on + Button

Click on - Button

The two figures show that the visible map range has changed

5、 ... and 、 Size map

Copy the mini map you have made

Consider the size of the map ：

• Large maps don't need zoom in and out , Delete ± Button
• The size map shows different sizes

Switch between large and small maps

 // Open the big map 
    public void OpenMaxmap()
    {
        maxmap.gameObject.SetActive(true);
        minimap.gameObject.SetActive(false);
        minicamera.orthographicSize = Maxmapsize;  
    }
 
    // Open the mini map 
    public void OpenMinimap()
    {
        maxmap.gameObject.SetActive(false);
        minimap.gameObject.SetActive(true);
        minicamera.orthographicSize = mapSize; 
    }

meanwhile , More than the last code public float Maxmapsize;// Of the big map orthographicSize size , This variable is used to expand the range of the camera , It's assigned to the big map , The scope of a large map is larger than that of a small map . The assignment is as follows ：

And expanding the big map 、 Add relevant methods on the mini map button , You can click the button to switch the size of the map .

give the result as follows ：

6、 ... and 、 The big map shows the protagonist's movement and direction

Mobile and other codes are the same as small maps , Added the following
maxplayerIcon.eulerAngles = new Vector3(0, 0, -player.eulerAngles.y);
Make the person icon in the map according to 3D The person of the object rotates and rotates

At the same time, in order to switch the map, it also adds isMaxmap The variable of , The purpose is to detect whether to open the big map .

 // Open the big map 
    public void OpenMaxmap()
    {
        maxmap.gameObject.SetActive(true);
        minimap.gameObject.SetActive(false);
        minicamera.orthographicSize = Maxmapsize;
        isMaxmap = true;
 
    }
 
    // Open the mini map 
    public void OpenMinimap()
    {
        maxmap.gameObject.SetActive(false);
        minimap.gameObject.SetActive(true);
        minicamera.orthographicSize = mapSize;
        isMaxmap = false;
    }