92 lines
2.8 KiB
C#
92 lines
2.8 KiB
C#
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using UnityEngine;
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using FSA = UnityEngine.Serialization.FormerlySerializedAsAttribute;
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namespace Lean.Common
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{
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/// <summary>This component allows you to spawn a prefab at a point, and have it thrown toward the target.</summary>
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[HelpURL(LeanHelper.PlusHelpUrlPrefix + "LeanSpawnBetween")]
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[AddComponentMenu(LeanHelper.ComponentPathPrefix + "Spawn Between")]
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public class LeanSpawnBetween : MonoBehaviour
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{
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/// <summary>The prefab that gets spawned.</summary>
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public Transform Prefab { set { prefab = value; } get { return prefab; } } [FSA("Prefab")] [SerializeField] private Transform prefab;
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/// <summary>When calling Spawn, this allows you to specify the spawned velocity.</summary>
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public float VelocityMultiplier { set { velocityMultiplier = value; } get { return velocityMultiplier; } } [FSA("VelocityMultiplier")] [SerializeField] private float velocityMultiplier = 1.0f;
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public float VelocityMin { set { velocityMin = value; } get { return velocityMin; } } [FSA("VelocityMin")] [SerializeField] private float velocityMin = -1.0f;
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public float VelocityMax { set { velocityMax = value; } get { return velocityMax; } } [FSA("VelocityMax")] [SerializeField] private float velocityMax = -1.0f;
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public void Spawn(Vector3 start, Vector3 end)
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{
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if (prefab != null)
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{
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// Vector between points
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var direction = Vector3.Normalize(end - start);
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// Angle between points
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var angle = Mathf.Atan2(direction.x, direction.y) * Mathf.Rad2Deg;
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// Instance the prefab, position it at the start point, and rotate it to the vector
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var instance = Instantiate(prefab);
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instance.position = start;
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instance.rotation = Quaternion.Euler(0.0f, 0.0f, -angle);
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instance.gameObject.SetActive(true);
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// Calculate force
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var force = Vector3.Distance(start, end) * velocityMultiplier;
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if (velocityMin >= 0.0f)
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{
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force = Mathf.Max(force, velocityMin);
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}
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if (velocityMax >= 0.0f)
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{
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force = Mathf.Min(force, velocityMax);
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}
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// Apply 3D force?
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var rigidbody3D = instance.GetComponent<Rigidbody>();
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if (rigidbody3D != null)
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{
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rigidbody3D.velocity = direction * force;
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}
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// Apply 2D force?
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var rigidbody2D = instance.GetComponent<Rigidbody2D>();
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if (rigidbody2D != null)
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{
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rigidbody2D.velocity = direction * force;
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}
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}
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}
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}
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}
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#if UNITY_EDITOR
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namespace Lean.Common.Editor
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{
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using TARGET = LeanSpawnBetween;
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[UnityEditor.CanEditMultipleObjects]
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[UnityEditor.CustomEditor(typeof(TARGET))]
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public class LeanSpawnBetween_Editor : LeanEditor
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{
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protected override void OnInspector()
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{
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TARGET tgt; TARGET[] tgts; GetTargets(out tgt, out tgts);
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Draw("prefab", "The prefab that gets spawned.");
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Draw("velocityMultiplier", "When calling Spawn, this allows you to specify the spawned velocity.");
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Draw("velocityMin");
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Draw("velocityMax");
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}
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}
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}
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#endif
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