protected virtual void Update()
{
// Get the main camera
var mainCamera = Camera.main;
// Begin dragging
if (Input.GetKey(Requires) == true && down == false)
{
down = true;
startMousePosition = Input.mousePosition;
}
// End dragging
if (Input.GetKey(Requires) == false && down == true)
{
down = false;
// Main camera exists?
if (mainCamera != null)
{
var endMousePosition = Input.mousePosition;
var startPos = D2dHelper.ScreenToWorldPosition(startMousePosition, Intercept, mainCamera);
var endPos = D2dHelper.ScreenToWorldPosition(endMousePosition, Intercept, mainCamera);
D2dSlice.All(Paint, startPos, endPos, Thickness, Shape, Color, Layers);
}
}
// Update indicator?
if (down == true && mainCamera != null && IndicatorPrefab != null)
{
if (indicatorInstance == null)
{
indicatorInstance = Instantiate(IndicatorPrefab);
}
var startPos = D2dHelper.ScreenToWorldPosition(startMousePosition, Intercept, mainCamera);
var currentPos = D2dHelper.ScreenToWorldPosition(Input.mousePosition, Intercept, mainCamera);
var scale = Vector3.Distance(currentPos, startPos);
var angle = D2dHelper.Atan2(currentPos - startPos) * Mathf.Rad2Deg;
// Transform the indicator so it lines up with the slice
indicatorInstance.transform.position = startPos;
indicatorInstance.transform.rotation = Quaternion.Euler(0.0f, 0.0f, -angle);
indicatorInstance.transform.localScale = new Vector3(Thickness, scale, scale);
}
// Destroy indicator?
else if (indicatorInstance != null)
{
Destroy(indicatorInstance.gameObject);
}
}
public void Slice()
{
var positionA = transform.position;
var positionB = transform.TransformPoint(0.0f, 1.0f, 0.0f);
D2dSlice.All(Paint, positionA, positionB, Thickness, Shape, Color, Layers);
// The slice won't happen until next frame, so delay the force application
if (Force != 0.0f)
{
StartCoroutine(DelayedForce(positionA, positionB));
}
if (ParticleSystem != null && ParticlesPerUnit > 0.0f)
{
var particleCount = Mathf.CeilToInt(Vector3.Distance(positionA, positionB) * ParticlesPerUnit);
if (particleCount > 0.0f)
{
var emitParams = new ParticleSystem.EmitParams();
var positionD = positionB - positionA;
if (ParticlesRandom == true)
{
for (var i = 0; i < particleCount; i++)
{
emitParams.position = positionA + positionD * Random.value;
emitParams.velocity = Random.insideUnitSphere;
ParticleSystem.Emit(emitParams, 1);
}
}
else
{
var step = positionD / particleCount;
emitParams.position = positionA + step * 0.5f;
for (var i = 0; i < particleCount; i++)
{
emitParams.velocity = Random.insideUnitSphere;
ParticleSystem.Emit(emitParams, 1);
emitParams.position += step;
}
}
}
}
}