implement basic physics

19 files changed, 472 insertions, 993 deletions

diff --git a/Assets/TutorialInfo.meta b/Assets/Materials.meta
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diff --git a/Assets/Materials/Ball.mat b/Assets/Materials/Ball.mat
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diff --git a/Assets/Readme.asset.meta b/Assets/Materials/Ball.mat.meta
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diff --git a/Assets/Materials/Ground.mat b/Assets/Materials/Ground.mat
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diff --git a/Assets/Materials/Ground.mat.meta b/Assets/Materials/Ground.mat.meta
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diff --git a/Assets/Materials/Trail.mat b/Assets/Materials/Trail.mat
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diff --git a/Assets/Materials/Trail.mat.meta b/Assets/Materials/Trail.mat.meta
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diff --git a/Assets/Readme.asset b/Assets/Readme.asset
deleted file mode 100644
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-  icon: {fileID: 2800000, guid: 727a75301c3d24613a3ebcec4a24c2c8, type: 3}
-  title: URP Empty Template
-  sections:
-  - heading: Welcome to the Universal Render Pipeline
-    text: This template includes the settings and assets you need to start creating with the Universal Render Pipeline.
-    linkText: 
-    url:
-  - heading: URP Documentation
-    text:
-    linkText: Read more about URP
-    url: https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@latest
-  - heading: Forums
-    text:
-    linkText: Get answers and support
-    url: https://forum.unity.com/forums/universal-render-pipeline.383/
-  - heading: Report bugs
-    text:
-    linkText: Submit a report
-    url: https://unity3d.com/unity/qa/bug-reporting
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diff --git a/Assets/TutorialInfo/Scripts.meta b/Assets/Scripts.meta
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diff --git a/Assets/Scripts/MovingSphere.cs b/Assets/Scripts/MovingSphere.cs
new file mode 100644
index 0000000..1f492aa
--- /dev/null
+++ b/Assets/Scripts/MovingSphere.cs
@@ -0,0 +1,68 @@
+using System.Collections;

+using System.Collections.Generic;

+using UnityEngine;

+

+public class MovingSphere : MonoBehaviour

+{

+	[SerializeField, Range(1f, 100f)]

+	float maxSpeed = 10f;

+	[SerializeField, Range(1f, 100f)]

+	float maxAcceleration = 10f;

+

+	[SerializeField, Range(0f, 1f)]

+	float bounciness = 0.5f;

+

+	Rect allowedArea = new Rect(-4.5f, -4.5f, 9f, 9f);

+

+	Vector3 velocity;

+

+	// Start is called before the first frame update

+	void Start()

+	{

+

+	}

+

+	// Update is called once per frame

+	void Update()

+	{

+		Vector2 playerInput = new Vector2(

+				Input.GetAxis("Horizontal"),

+				Input.GetAxis("Vertical")

+				);

+		playerInput = Vector2.ClampMagnitude(playerInput, 1f);

+

+		Vector3 acceleration = new Vector3(

+					playerInput.x,

+					0f,

+					playerInput.y

+					) * maxAcceleration;

+		velocity += acceleration * Time.deltaTime;

+		velocity = Vector3.ClampMagnitude(velocity, maxSpeed);

+		Vector3 displacement = velocity * Time.deltaTime;

+

+		Vector3 newPosition = transform.localPosition + displacement;

+

+		if(newPosition.x < allowedArea.xMin)

+		{

+			newPosition.x = allowedArea.xMin;

+			velocity.x = -velocity.x * bounciness;

+		}

+		else if(newPosition.x > allowedArea.xMax)

+		{

+			newPosition.x = allowedArea.xMax;

+			velocity.x = -velocity.x * bounciness;

+		}

+		if(newPosition.z < allowedArea.yMin)

+		{

+			newPosition.z = allowedArea.yMin;

+			velocity.z = -velocity.z * bounciness;

+		}

+		else if(newPosition.z > allowedArea.yMax)

+		{

+			newPosition.z = allowedArea.yMax;

+			velocity.z = -velocity.z * bounciness;

+		}

+

+		transform.localPosition = newPosition;

+	}

+}

diff --git a/Assets/TutorialInfo/Scripts/Editor/ReadmeEditor.cs.meta b/Assets/Scripts/MovingSphere.cs.meta
index f038618..40eb1a3 100644
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diff --git a/Assets/Settings/URP-HighFidelity-Renderer.asset b/Assets/Settings/URP-HighFidelity-Renderer.asset
index b1673be..90883f9 100644
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+++ b/Assets/Settings/URP-HighFidelity-Renderer.asset
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@@ -1,9 +0,0 @@
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diff --git a/Assets/TutorialInfo/Scripts/Editor/ReadmeEditor.cs b/Assets/TutorialInfo/Scripts/Editor/ReadmeEditor.cs
deleted file mode 100644
index ad55eca..0000000
--- a/Assets/TutorialInfo/Scripts/Editor/ReadmeEditor.cs
+++ /dev/null
@@ -1,242 +0,0 @@
-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-using UnityEditor;
-using System;
-using System.IO;
-using System.Reflection;
-
-[CustomEditor(typeof(Readme))]
-[InitializeOnLoad]
-public class ReadmeEditor : Editor
-{
-    static string s_ShowedReadmeSessionStateName = "ReadmeEditor.showedReadme";
-    
-    static string s_ReadmeSourceDirectory = "Assets/TutorialInfo";
-
-    const float k_Space = 16f;
-
-    static ReadmeEditor()
-    {
-        EditorApplication.delayCall += SelectReadmeAutomatically;
-    }
-
-    static void RemoveTutorial()
-    {
-        if (EditorUtility.DisplayDialog("Remove Readme Assets",
-            
-            $"All contents under {s_ReadmeSourceDirectory} will be removed, are you sure you want to proceed?",
-            "Proceed",
-            "Cancel"))
-        {
-            if (Directory.Exists(s_ReadmeSourceDirectory))
-            {
-                FileUtil.DeleteFileOrDirectory(s_ReadmeSourceDirectory);
-                FileUtil.DeleteFileOrDirectory(s_ReadmeSourceDirectory + ".meta");
-            }
-            else
-            {
-                Debug.Log($"Could not find the Readme folder at {s_ReadmeSourceDirectory}");
-            }
-
-            var readmeAsset = SelectReadme();
-            if (readmeAsset != null)
-            {
-                var path = AssetDatabase.GetAssetPath(readmeAsset);
-                FileUtil.DeleteFileOrDirectory(path + ".meta");
-                FileUtil.DeleteFileOrDirectory(path);
-            }
-
-            AssetDatabase.Refresh();
-        }
-    }
-
-    static void SelectReadmeAutomatically()
-    {
-        if (!SessionState.GetBool(s_ShowedReadmeSessionStateName, false))
-        {
-            var readme = SelectReadme();
-            SessionState.SetBool(s_ShowedReadmeSessionStateName, true);
-
-            if (readme && !readme.loadedLayout)
-            {
-                LoadLayout();
-                readme.loadedLayout = true;
-            }
-        }
-    }
-
-    static void LoadLayout()
-    {
-        var assembly = typeof(EditorApplication).Assembly;
-        var windowLayoutType = assembly.GetType("UnityEditor.WindowLayout", true);
-        var method = windowLayoutType.GetMethod("LoadWindowLayout", BindingFlags.Public | BindingFlags.Static);
-        method.Invoke(null, new object[] { Path.Combine(Application.dataPath, "TutorialInfo/Layout.wlt"), false });
-    }
-
-    static Readme SelectReadme()
-    {
-        var ids = AssetDatabase.FindAssets("Readme t:Readme");
-        if (ids.Length == 1)
-        {
-            var readmeObject = AssetDatabase.LoadMainAssetAtPath(AssetDatabase.GUIDToAssetPath(ids[0]));
-
-            Selection.objects = new UnityEngine.Object[] { readmeObject };
-
-            return (Readme)readmeObject;
-        }
-        else
-        {
-            Debug.Log("Couldn't find a readme");
-            return null;
-        }
-    }
-
-    protected override void OnHeaderGUI()
-    {
-        var readme = (Readme)target;
-        Init();
-
-        var iconWidth = Mathf.Min(EditorGUIUtility.currentViewWidth / 3f - 20f, 128f);
-
-        GUILayout.BeginHorizontal("In BigTitle");
-        {
-            if (readme.icon != null)
-            {
-                GUILayout.Space(k_Space);
-                GUILayout.Label(readme.icon, GUILayout.Width(iconWidth), GUILayout.Height(iconWidth));
-            }
-            GUILayout.Space(k_Space);
-            GUILayout.BeginVertical();
-            {
-
-                GUILayout.FlexibleSpace();
-                GUILayout.Label(readme.title, TitleStyle);
-                GUILayout.FlexibleSpace();
-            }
-            GUILayout.EndVertical();
-            GUILayout.FlexibleSpace();
-        }
-        GUILayout.EndHorizontal();
-    }
-
-    public override void OnInspectorGUI()
-    {
-        var readme = (Readme)target;
-        Init();
-
-        foreach (var section in readme.sections)
-        {
-            if (!string.IsNullOrEmpty(section.heading))
-            {
-                GUILayout.Label(section.heading, HeadingStyle);
-            }
-
-            if (!string.IsNullOrEmpty(section.text))
-            {
-                GUILayout.Label(section.text, BodyStyle);
-            }
-
-            if (!string.IsNullOrEmpty(section.linkText))
-            {
-                if (LinkLabel(new GUIContent(section.linkText)))
-                {
-                    Application.OpenURL(section.url);
-                }
-            }
-
-            GUILayout.Space(k_Space);
-        }
-
-        if (GUILayout.Button("Remove Readme Assets", ButtonStyle))
-        {
-            RemoveTutorial();
-        }
-    }
-
-    bool m_Initialized;
-
-    GUIStyle LinkStyle
-    {
-        get { return m_LinkStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_LinkStyle;
-
-    GUIStyle TitleStyle
-    {
-        get { return m_TitleStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_TitleStyle;
-
-    GUIStyle HeadingStyle
-    {
-        get { return m_HeadingStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_HeadingStyle;
-
-    GUIStyle BodyStyle
-    {
-        get { return m_BodyStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_BodyStyle;
-
-    GUIStyle ButtonStyle
-    {
-        get { return m_ButtonStyle; }
-    }
-
-    [SerializeField]
-    GUIStyle m_ButtonStyle;
-
-    void Init()
-    {
-        if (m_Initialized)
-            return;
-        m_BodyStyle = new GUIStyle(EditorStyles.label);
-        m_BodyStyle.wordWrap = true;
-        m_BodyStyle.fontSize = 14;
-        m_BodyStyle.richText = true;
-
-        m_TitleStyle = new GUIStyle(m_BodyStyle);
-        m_TitleStyle.fontSize = 26;
-
-        m_HeadingStyle = new GUIStyle(m_BodyStyle);
-        m_HeadingStyle.fontStyle = FontStyle.Bold;
-        m_HeadingStyle.fontSize = 18;
-
-        m_LinkStyle = new GUIStyle(m_BodyStyle);
-        m_LinkStyle.wordWrap = false;
-
-        // Match selection color which works nicely for both light and dark skins
-        m_LinkStyle.normal.textColor = new Color(0x00 / 255f, 0x78 / 255f, 0xDA / 255f, 1f);
-        m_LinkStyle.stretchWidth = false;
-
-        m_ButtonStyle = new GUIStyle(EditorStyles.miniButton);
-        m_ButtonStyle.fontStyle = FontStyle.Bold;
-
-        m_Initialized = true;
-    }
-
-    bool LinkLabel(GUIContent label, params GUILayoutOption[] options)
-    {
-        var position = GUILayoutUtility.GetRect(label, LinkStyle, options);
-
-        Handles.BeginGUI();
-        Handles.color = LinkStyle.normal.textColor;
-        Handles.DrawLine(new Vector3(position.xMin, position.yMax), new Vector3(position.xMax, position.yMax));
-        Handles.color = Color.white;
-        Handles.EndGUI();
-
-        EditorGUIUtility.AddCursorRect(position, MouseCursor.Link);
-
-        return GUI.Button(position, label, LinkStyle);
-    }
-}
diff --git a/Assets/TutorialInfo/Scripts/Readme.cs b/Assets/TutorialInfo/Scripts/Readme.cs
deleted file mode 100644
index 95f6269..0000000
--- a/Assets/TutorialInfo/Scripts/Readme.cs
+++ /dev/null
@@ -1,16 +0,0 @@
-using System;
-using UnityEngine;
-
-public class Readme : ScriptableObject
-{
-    public Texture2D icon;
-    public string title;
-    public Section[] sections;
-    public bool loadedLayout;
-
-    [Serializable]
-    public class Section
-    {
-        public string heading, text, linkText, url;
-    }
-}
diff --git a/Assets/TutorialInfo/Scripts/Readme.cs.meta b/Assets/TutorialInfo/Scripts/Readme.cs.meta
deleted file mode 100644
index 935153f..0000000
--- a/Assets/TutorialInfo/Scripts/Readme.cs.meta
+++ /dev/null
@@ -1,12 +0,0 @@
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