void Update()
{
// -- Pinch
// ------------------------------------------------
// Works only with two fingers
if (Input.touchCount == 2)
{
var finger1 = Input.GetTouch(0);
var finger2 = Input.GetTouch(1);
if (finger1.phase == TouchPhase.Began && finger2.phase == TouchPhase.Began)
{
this.pinchFinger1 = finger1;
this.pinchFinger2 = finger2;
}
// On move, update
if (finger1.phase == TouchPhase.Moved || finger2.phase == TouchPhase.Moved)
{
float baseDistance = Vector2.Distance(this.pinchFinger1.position, this.pinchFinger2.position);
float currentDistance = Vector2.Distance(finger1.position, finger2.position);
// Purcent
float currentDistancePurcent = currentDistance / baseDistance;
// Create an effect between the fingers if it doesn't exists
if (vortex == null)
{
Vector3 finger1position = Camera.main.ScreenToWorldPoint(this.pinchFinger1.position);
Vector3 finger2position = Camera.main.ScreenToWorldPoint(this.pinchFinger2.position);
// Find the center between the two fingers
Vector3 vortexPosition = Vector3.Lerp(finger1position, finger2position, 0.5f);
vortex = SpecialEffectsScript.MakeVortex(vortexPosition);
}
// Take the base scale and make it smaller/bigger
vortex.transform.localScale = Vector3.one * (currentDistancePurcent * 1.5f);
}
}
else
{
// Pinch release ?
if (vortex != null)
{
// Create explosions!!!!!!!!!!!
for (int i = 0; i < 10; i++)
{
var explosion = SpecialEffectsScript.MakeExplosion(vortex.transform.position);
explosion.transform.localScale = vortex.transform.localScale;
}
// Destroy vortex
Destroy(vortex.gameObject);
}
// Look for all fingers
for (int i = 0; i < Input.touchCount; i++)
{
Touch touch = Input.GetTouch(i);
// -- Tap: quick touch & release
// ------------------------------------------------
if (touch.phase == TouchPhase.Ended && touch.tapCount == 1)
{
// Touch are screens location. Convert to world
Vector3 position = Camera.main.ScreenToWorldPoint(touch.position);
// Effect for feedback
SpecialEffectsScript.MakeExplosion((position));
}
else
{
// -- Drag
// ------------------------------------------------
if (touch.phase == TouchPhase.Began)
{
// Store this new value
if (trails.ContainsKey(i) == false)
{
Vector3 position = Camera.main.ScreenToWorldPoint(touch.position);
position.z = 0; // Make sure the trail is visible
GameObject trail = SpecialEffectsScript.MakeTrail(position);
if (trail != null)
{
Debug.Log(trail);
trails.Add(i, trail);
}
}
}
else if (touch.phase == TouchPhase.Moved)
{
// Move the trail
if (trails.ContainsKey(i))
{
GameObject trail = trails[i];
Camera.main.ScreenToWorldPoint(touch.position);
Vector3 position = Camera.main.ScreenToWorldPoint(touch.position);
position.z = 0; // Make sure the trail is visible
trail.transform.position = position;
}
}
else if (touch.phase == TouchPhase.Ended)
{
// Clear known trails
if (trails.ContainsKey(i))
{
GameObject trail = trails[i];
// Let the trail fade out
Destroy(trail, trail.GetComponent <TrailRenderer>().time);
trails.Remove(i);
}
}
}
}
}
}
