using UnityEditor;
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using UnityEngine;
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namespace TowerDefense.Targetting.Editor
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{
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/// <summary>
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/// The editor for configuring targetter
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/// </summary>
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[CustomEditor(typeof(Targetter)), CanEditMultipleObjects]
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public class TargetterEditor : UnityEditor.Editor
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{
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/// <summary>
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/// Configuration for which collider to use
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/// </summary>
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public enum TargetterCollider
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{
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/// <summary>
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/// For sphere collider
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/// </summary>
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Sphere,
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/// <summary>
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/// For capsule collider
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/// </summary>
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Capsule
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}
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/// <summary>
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/// The targetter to edit
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/// </summary>
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Targetter m_Targetter;
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/// <summary>
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/// The collision configuration to use
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/// </summary>
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TargetterCollider m_ColliderConfiguration;
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/// <summary>
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/// The radius of the collider
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/// </summary>
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float m_ColliderRadius;
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// Capsule specific info
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/// <summary>
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/// The height of a capsule collider
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/// </summary>
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float m_ExtraVerticalRange;
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/// <summary>
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/// The attached collider
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/// </summary>
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Collider m_AttachedCollider;
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/// <summary>
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/// The serialized property representing <see cref="m_AttachedCollider"/>
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/// </summary>
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SerializedProperty m_SerializedAttachedCollider;
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/// <summary>
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/// draws the default inspector
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/// and then draws configuration for colliders
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/// </summary>
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public override void OnInspectorGUI()
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{
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base.OnInspectorGUI();
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// To make the inspector a little bit neater
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EditorGUILayout.Space();
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EditorGUILayout.LabelField("Targetter Collider Configuration", EditorStyles.boldLabel);
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m_ColliderConfiguration =
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(TargetterCollider) EditorGUILayout.EnumPopup("Targetter Collider", m_ColliderConfiguration);
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AttachCollider();
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m_ColliderRadius = EditorGUILayout.FloatField("Radius", m_ColliderRadius);
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if (m_ColliderConfiguration == TargetterCollider.Capsule)
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{
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m_ExtraVerticalRange = EditorGUILayout.FloatField("Vertical Range", m_ExtraVerticalRange);
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}
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SetValues();
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EditorUtility.SetDirty(m_Targetter);
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EditorUtility.SetDirty(m_AttachedCollider);
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serializedObject.ApplyModifiedProperties();
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}
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/// <summary>
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/// For attaching and hiding the correct collider
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/// </summary>
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void AttachCollider()
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{
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switch (m_ColliderConfiguration)
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{
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case TargetterCollider.Sphere:
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if (m_AttachedCollider is SphereCollider)
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{
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GetValues();
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return;
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}
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if (m_AttachedCollider != null)
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{
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DestroyImmediate(m_AttachedCollider, true);
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}
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m_AttachedCollider = m_Targetter.gameObject.AddComponent<SphereCollider>();
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m_SerializedAttachedCollider.objectReferenceValue = m_AttachedCollider;
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break;
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case TargetterCollider.Capsule:
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if (m_AttachedCollider is CapsuleCollider)
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{
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GetValues();
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return;
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}
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if (m_AttachedCollider != null)
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{
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DestroyImmediate(m_AttachedCollider, true);
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}
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m_AttachedCollider = m_Targetter.gameObject.AddComponent<CapsuleCollider>();
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m_SerializedAttachedCollider.objectReferenceValue = m_AttachedCollider;
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break;
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}
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SetValues();
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m_AttachedCollider.hideFlags = HideFlags.HideInInspector;
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}
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/// <summary>
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/// Assigns the values to the collider
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/// </summary>
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void SetValues()
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{
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switch (m_ColliderConfiguration)
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{
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case TargetterCollider.Sphere:
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var sphere = (SphereCollider) m_AttachedCollider;
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sphere.radius = m_ColliderRadius;
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break;
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case TargetterCollider.Capsule:
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var capsule = (CapsuleCollider) m_AttachedCollider;
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capsule.radius = m_ColliderRadius;
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capsule.height = m_ExtraVerticalRange + m_ColliderRadius * 2;
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break;
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}
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}
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/// <summary>
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/// Obtains the information from the collider
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/// </summary>
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void GetValues()
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{
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switch (m_ColliderConfiguration)
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{
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case TargetterCollider.Sphere:
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var sphere = (SphereCollider) m_AttachedCollider;
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m_ColliderRadius = sphere.radius;
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break;
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case TargetterCollider.Capsule:
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var capsule = (CapsuleCollider) m_AttachedCollider;
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m_ColliderRadius = capsule.radius;
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m_ExtraVerticalRange = capsule.height - m_ColliderRadius * 2;
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break;
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}
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}
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/// <summary>
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/// Caches the collider and hides it
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/// and configures all the necessary information from it
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/// </summary>
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void OnEnable()
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{
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m_Targetter = (Targetter) target;
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m_SerializedAttachedCollider = serializedObject.FindProperty("attachedCollider");
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m_AttachedCollider = (Collider) m_SerializedAttachedCollider.objectReferenceValue;
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if (m_AttachedCollider == null)
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{
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m_AttachedCollider = m_Targetter.GetComponent<Collider>();
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if (m_AttachedCollider == null)
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{
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switch (m_ColliderConfiguration)
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{
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case TargetterCollider.Sphere:
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m_AttachedCollider = m_Targetter.gameObject.AddComponent<SphereCollider>();
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break;
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case TargetterCollider.Capsule:
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m_AttachedCollider = m_Targetter.gameObject.AddComponent<CapsuleCollider>();
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break;
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}
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m_SerializedAttachedCollider.objectReferenceValue = m_AttachedCollider;
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}
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}
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if (m_AttachedCollider is SphereCollider)
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{
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m_ColliderConfiguration = TargetterCollider.Sphere;
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}
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else if (m_AttachedCollider is CapsuleCollider)
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{
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m_ColliderConfiguration = TargetterCollider.Capsule;
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}
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// to ensure the collider is referenced by the serialized object
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if (m_SerializedAttachedCollider.objectReferenceValue == null)
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{
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m_SerializedAttachedCollider.objectReferenceValue = m_AttachedCollider;
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}
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GetValues();
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m_AttachedCollider.isTrigger = true;
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m_AttachedCollider.hideFlags = HideFlags.HideInInspector;
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}
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}
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}
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