56 lines
1.8 KiB
C#
56 lines
1.8 KiB
C#
|
using System.Collections;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using UnityEngine;
|
|||
|
|
using UnityEngine.U2D;
|
|||
|
|
|
|||
|
|
namespace SpriteShapeExtras
|
|||
|
|
{
|
|||
|
|
public class Sprinkler : MonoBehaviour
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
public GameObject m_Prefab;
|
|||
|
|
public float m_RandomFactor = 10.0f;
|
|||
|
|
public bool m_UseNormals = false;
|
|||
|
|
|
|||
|
|
float Angle(Vector3 a, Vector3 b)
|
|||
|
|
{
|
|||
|
|
float dot = Vector3.Dot(a, b);
|
|||
|
|
float det = (a.x * b.y) - (b.x * a.y);
|
|||
|
|
return Mathf.Atan2(det, dot) * Mathf.Rad2Deg;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Use this for initialization. Plant the Prefabs on Startup
|
|||
|
|
void Start ()
|
|||
|
|
{
|
|||
|
|
SpriteShapeController ssc = GetComponent<SpriteShapeController>();
|
|||
|
|
Spline spl = ssc.spline;
|
|||
|
|
|
|||
|
|
for (int i = 1; i < spl.GetPointCount() - 1; ++i)
|
|||
|
|
{
|
|||
|
|
if (Random.Range(0, 100) > (100 - m_RandomFactor) )
|
|||
|
|
{
|
|||
|
|
var go = GameObject.Instantiate(m_Prefab);
|
|||
|
|
go.transform.position = spl.GetPosition(i);
|
|||
|
|
|
|||
|
|
if (m_UseNormals)
|
|||
|
|
{
|
|||
|
|
Vector3 lt = Vector3.Normalize(spl.GetPosition(i - 1) - spl.GetPosition(i));
|
|||
|
|
Vector3 rt = Vector3.Normalize(spl.GetPosition(i + 1) - spl.GetPosition(i));
|
|||
|
|
float a = Angle(Vector3.up, lt);
|
|||
|
|
float b = Angle(lt, rt);
|
|||
|
|
float c = a + (b * 0.5f);
|
|||
|
|
if (b > 0)
|
|||
|
|
c = (180 + c);
|
|||
|
|
go.transform.rotation = Quaternion.Euler(0, 0, c);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Update is called once per frame
|
|||
|
|
void Update ()
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|