How does unity use mapbox to implement real maps in games?

Original website ：http://www.manew.com/thread-106602-1-1.html

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    Speaking of the real map in the game , The first games that come to mind should be popular all over the world AR game 《Pokémon Go》 Well . Today's tutorial will introduce you to Mapbox Unity SDK, Can get the real world map in the game , Or generate the voxel world in the game according to the real map . These map data can be stored in the game or application in advance , It can also be generated dynamically at run time .

　　 Set up account number
　　 visit Mapbox Download from the official website Mapbox Unity SDK, And then I'll download .assetpackage File import project . In the use of Mapbox Before plug in , You need to be in Mapbox Apply for API Key. establish Mapbox After account number , open API acess tokens page , Create a new one token.

　　 And then in Unity Click menu item in the editor Mapbox - Configure Access open Mapbox Interface ：

　　 Input Access Token：

　　 If Token take effect , The editor will appear as shown in the figure above “TokenValid” Tips .
　　 Example scenario
　　Mapbox The plug-in provides a number of sample scenarios , The simplest example scenario Slippy, It is also a common function case of game projects . It shows that the map extends from a selected point , Load new terrain in real time according to the change of field of view , This is also a common function for tracking the real geographical location of an object in the game .

　　 This example uses 3D grid , And Unity Self contained 3D The terrain is the same . In the scene Map The game object has Abstract Map Script , You can set the longitude and latitude and extension range of the starting position of the terrain in this script .

　　Abstract Map The script Map Visualization Fields are used to define the appearance of the map .Mapbox The plug-in already provides some different visual effects , But you can also choose to customize or recreate the terrain .

　　 take Map Visualization Field set to PoiDemoVisualization, And change the starting position to Shanghai , The effect is as follows ：

　　 If you want to generate 《 My world 》 Voxel maps like that , Can open VoxelWorld Scene to see its settings . The effect is as follows ：

　　 Custom map
　　 except Mapbox Sample map appearance provided , You can also customize the map information you want to display . Here are the steps to customize the map .
　　 First, create a new folder “CityMap”, Then right-click the folder in the project view , Choose in turn Create - Mapbox - MapVisualization New programmable object MapVisualizer, This object will be used as the root node of the map , To carry all map levels .

　　 Then create Terrain Factory, stay “CityMap” Create a new folder in the directory “CityTerrain”, Then right-click the folder in the project view , Choose in turn Create - Mapbox - Factories - Terrain Factory New programmable object CityTerrain：

　　 Select... In the inspector CityMap object , add to CityTerrain For its first Factory.

　　 Can be in CityTerrain Object , To change the height scale of the building .

　　 reminder ： If you don't want the map to be highlighted , You can create a new material and then Smoothness Change it to 0 , Then replace CityTerrain The material used by the object .
　　 Create below Map Image Factory. stay “CityMap” Create a new folder in the directory “CityImagery”, Then right-click the folder in the project view , Choose in turn Create - Mapbox - Factories - Map Image Factory New programmable object CityImagery.

　　 Choose CityImagery object , Put it Style Set to Dark.

　　 Then select CityMap object , take CityImagery Add as its second Factory.

　　 Create a game object after creating a new scene Map, And bind it AbstractMap Script .

　　 Will script the MapVisualizer Property set to CityMap,Zoom Set to 16. And then to Map Object to add RangeTileProvider Script , Set its range to (1, 1, 1, 1), And will RangeTileProvider Script assigned to AbstractMap Of Tile Provider Field . as follows ：

　　 among Range Indicates that the center is the set longitude and latitude ,Mapbox Towards the center 4 Number of parcels generated in each direction , The default is 0. This is the simplest custom map , Click Run to see the appearance of the generated map as follows ：

　　 You can add more layers on top of this , To place 3D Architecture 、 Road texture, etc .
　　 summary
　　 About the Unity Pass through Mapbox To add a real world map to the game, let's share it here , This article only briefly introduces Mapbox Unity SDK A small part of the function of , Interested friends can download and try it out and explore it more deeply .
source ：Unity Official Chinese Forum