private void Start()
{
Debug.Log("操作说明：鼠标左键拖动来拉动绳子，tab键切换拉动绳子哪一端，1键切换绳首是否挂物体，2键切换绳尾是否挂物体");
var mat = new Material(Shader.Find("Particles/Alpha Blended"));
mat.SetColor("_TintColor", new Color32(0xFF, 0x00, 0x00, 0x22));
_cam = Camera.main;
_cam.nearClipPlane = 0.0001f;
_cam.fieldOfView = 30;
_cam.transform.position = new Vector3(0, 0.223f, -0.35f) * RopeLength * 10;
_cam.transform.localEulerAngles = new Vector3(30.2f, 0, 0);
Destroy(GameObject.Find("Directional Light").GetComponent <Light>());
// 设置
var rope = new GameObject("TestRope");
rope.transform.position = Vector3.up * RopeLength * 1.2f;
var ctrl = rope.AddComponent <ControllableRope>();
ctrl.Width = 0.05f * RopeLength;
ctrl.Length = RopeLength;
ctrl.Segment = 12;
ctrl.GenAxis = Vector3.up * -1; // 竖直向下创建
ctrl.Mass = RopeMass;
ctrl.AngularDrag = 10;
ctrl.IterCount = 255;
ctrl.RenderScale = 0.5f;
ctrl.Mat = mat;
ctrl.Recalc();
ctrl.Auto();
_rope = ctrl;
// 创建地面
var floor = GameObject.CreatePrimitive(PrimitiveType.Plane);
floor.transform.position = Vector3.zero;
floor.transform.localEulerAngles = Vector3.zero;
_floorLayerMask = 1 << 6;
floor.layer = 6;
// 创建挂接物
_obj1 = GameObject.CreatePrimitive(PrimitiveType.Cube);
var rig1 = _obj1.AddComponent <Rigidbody>();
rig1.freezeRotation = true;
_obj1.GetComponent <Renderer>().material.color = Color.red;
_obj1.transform.position = Vector3.zero;
_obj1.transform.localScale = Vector3.one * 0.01f;
_obj2 = GameObject.CreatePrimitive(PrimitiveType.Cube);
var rig2 = _obj2.AddComponent <Rigidbody>();
rig2.freezeRotation = true;
_obj2.GetComponent <Renderer>().material.color = Color.blue;
_obj2.transform.position = Vector3.left * 0.05f;
_obj2.transform.localScale = Vector3.one * 0.01f;
_rope.HangHead(_obj1.GetComponent <Rigidbody>());
_rope.HangTail(_obj2.GetComponent <Rigidbody>());
}
void Update()
{
if (Input.GetKeyUp(KeyCode.Tab))
{
CType = (CtrlType)(((int)CType + 1) % 2);
Debug.Log("当前控制:" + CType);
}
if (Input.GetKeyUp(KeyCode.Alpha1))
{
if (_rope.GetHeadHang() == null)
{
_rope.HangHead(_obj1.GetComponent <Rigidbody>());
}
else
{
_rope.HangHead(null);
_rope.ManualHead(false);
}
}
else if (Input.GetKeyUp(KeyCode.Alpha2))
{
if (_rope.GetTailHang() == null)
{
_rope.HangTail(_obj2.GetComponent <Rigidbody>());
}
else
{
_rope.HangTail(null);
_rope.ManualTail(false);
}
}
switch (CType)
{
case CtrlType.CtrlHead:
_handler = _rope.GetHeadHang();
if (_handler == null)
{
_handler = _rope.GetHeadHandler().GetComponent <Rigidbody>();
_rope.ManualHead(true, _rope.GetTailHang() == null);
}
break;
case CtrlType.CtrlTail:
_handler = _rope.GetTailHang();
if (_handler == null)
{
_handler = _rope.GetTailHandler().GetComponent <Rigidbody>();
_rope.ManualTail(true, _rope.GetHeadHang() == null);
}
break;
}
if (_handler != null)
{
if (Input.GetMouseButton(0))
{
var ray = _cam.ScreenPointToRay(Input.mousePosition);
RaycastHit info;
if (Physics.Raycast(ray, out info, 1000, _floorLayerMask))
{
_handler.position = info.point + new Vector3(0, 0.011f / 2, 0);
}
}
}
}
