{"id":11525,"date":"2021-02-21T15:47:51","date_gmt":"2021-02-21T14:47:51","guid":{"rendered":"http:\/\/www.keris-studio.fr\/blog\/?p=11525"},"modified":"2021-02-21T16:41:10","modified_gmt":"2021-02-21T15:41:10","slug":"corona-maze-runner","status":"publish","type":"post","link":"https:\/\/www.keris-studio.fr\/blog\/?p=11525","title":{"rendered":"Corona Maze Runner"},"content":{"rendered":"

This tutorial implies the creation of a maze with Rhino Grasshopper and alternatively with Blender, than exporting and preparing the set in Unity. In Unity a NavMesh with IA will be implemented. Then a few scripts will allowed to set up a game experience that will be extended in Augmented Reality.<\/p>\n

<\/p>\n

Let\u2019s start in Blender<\/p>\n

<\/p>\n

<\/p>\n

The Maze Generator can be found here<\/p>\n

https:\/\/github.com\/elfnor\/mesh_maze<\/a><\/p>\n

Other kind of maze can be found here https:\/\/github.com\/Gorgious56\/MazeGenerator\/releases<\/a> creating a maze is not obvious. Results can be surprising and rewarding https:\/\/imgur.com\/a\/6u13JSG<\/a><\/p>\n

A prior version was here : https:\/\/elfnor.com\/maze-any-mesh-in-blender.html<\/a><\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

The Blender Maze is prepared and painted into Unity<\/p>\n

<\/p>\n

The ground is replaced by a Terrain Asset<\/p>\n

The size fits to the actual ground, it could have been enlarged<\/p>\n

<\/p>\n

It\u2019s been sculpted<\/p>\n

<\/p>\n

And painted<\/p>\n

Additional pack can be added to enrich the environment<\/p>\n

<\/p>\n

Add a mesh collider for the walls<\/p>\n

\"\"<\/a><\/p>\n

Preparing the Maze for IA<\/p>\n

It has to be Navigation Static<\/p>\n

<\/p>\n

In navigation add 2 layers<\/p>\n

<\/p>\n

The terrain is Walkable<\/p>\n

<\/p>\n

Wall are not walkable<\/p>\n

<\/p>\n

Ready to bake<\/p>\n

<\/p>\n

The blue colour indicates that it worked<\/p>\n

<\/p>\n

To test the camera is moved to an upper position.<\/p>\n

<\/p>\n

To test IA, add a NavMesh component<\/p>\n

<\/p>\n

And this script<\/p>\n

using System.Collections;\n\n\nusing System.Collections.Generic;\n\nusing UnityEngine;\n\nusing UnityEngine.AI;\n\npublic class MoveTarget : MonoBehaviour\n\n{\n\npublic NavMeshAgent nmAgent;\n\nvoid Update()\n\n{\n\n\/\/If the player has left clicked\n\nif (Input.GetMouseButtonDown(0))\n\n{\n\n\/\/Get the mouse Position\n\nVector3 mouse = Input.mousePosition;\n\n\/\/Cast a ray to get where the mouse is pointing at\n\nRay castPoint = Camera.main.ScreenPointToRay(mouse);\n\n\/\/Stores the position where the ray hit.\n\nRaycastHit hit;\n\n\/\/If the raycast doesnt hit a wall\n\nif (Physics.Raycast(castPoint, out hit, Mathf.Infinity))\n\n{\n\nnmAgent.SetDestination(hit.point);\n\n}\n\n}\n\n}\n\n}\n<\/pre>\n
Test by clicking anywhere to see what path is used.<\/p>\n
<\/p>\n
To explore the Maze we will use Third Person Controller \u2013 Basic Locomotion FREE<\/strong><\/p>\n
<\/p>\n
Drop it in the scene<\/p>\n
<\/p>\n
Link the camera to have a TPS view<\/p>\n
\"\"<\/a><\/p>\n
<\/p>\n
Adapt controls to the keyboard you use. Here are the French settings<\/p>\n
\"\"<\/a><\/p>\n
Let\u2019s try with another Maze done with Grasshopper<\/p>\n
The Grasshopper definition will give a more complex Maze, it\u2019ll a bit more complicated to set up.<\/p>\n
Find all sources here : https:\/\/www.grasshopper3d.com\/forum\/topics\/maze-from-mesh<\/a><\/p>\n
We will use the 0.5 version from this page : https:\/\/www.grasshopper3d.com\/forum\/topics\/maze-from-mesh but the 0.9<\/a> can be also tested.<\/p>\n
Let\u2019s open up Grasshopper :<\/p>\n
First we design the Surface of the Maze : here it will be a 20×20 square<\/p>\n
\"\"<\/a><\/p>\n
<\/p>\n
Then the surface is divided into a grid and the maze is calculated with the script<\/p>\n
\"\"<\/a><\/p>\n
<\/p>\n
The output of the script gives the drawing of the Maze<\/p>\n
<\/p>\n
<\/p>\n
Those lines will be transformed to walls<\/p>\n
<\/p>\n
<\/p>\n
The result is baked with a Geometry Cache<\/p>\n
<\/p>\n
A material has been created and apply, ready to be exported into Unity<\/p>\n
<\/p>\n
\"Lescop<\/a><\/p>\n
Importing in Unity<\/p>\n
<\/p>\n
Extract Textures<\/p>\n
<\/p>\n
Voil\u00e0<\/p>\n
<\/p>\n
As it was done before, let\u2019s prepare the Maze for IA.<\/p>\n
<\/p>\n
Let\u2019s add a virus. The covid fits well\u2026.<\/p>\n
<\/p>\n
We can now spread the virus randomly. See if it\u2019s possible to reach the End Point without being contaminated.<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
This tutorial implies the creation of a maze with Rhino Grasshopper and alternatively with Blender, than exporting and preparing the set in Unity. In Unity a NavMesh with IA will be implemented. Then a few scripts will allowed to set up a game experience that will be extended in Augmented Reality.<\/p>\n","protected":false},"author":2,"featured_media":11526,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,190,426,14,195,448,8,174,205],"tags":[420,447,424,423,175,47,140,320,425],"class_list":["post-11525","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3d","category-architecture-2","category-blender","category-conception","category-creation","category-grasshopper","category-methodologie","category-simulations","category-unity-2","tag-blender","tag-corona","tag-covid","tag-game","tag-grasshopper","tag-simulation","tag-unity","tag-unity-3d","tag-virus"],"_links":{"self":[{"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/posts\/11525","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11525"}],"version-history":[{"count":5,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/posts\/11525\/revisions"}],"predecessor-version":[{"id":11581,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/posts\/11525\/revisions\/11581"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=\/wp\/v2\/media\/11526"}],"wp:attachment":[{"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.keris-studio.fr\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}