Add pinch controls to statue dressup game
This commit is contained in:
Michal Pikulski
212
Assets/Scripts/Minigames/StatueDressup/UI/PinchGestureHandler.cs
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212
Assets/Scripts/Minigames/StatueDressup/UI/PinchGestureHandler.cs
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using System;
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using Core;
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using UnityEngine;
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using UnityEngine.InputSystem;
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using UnityEngine.InputSystem.EnhancedTouch;
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using Touch = UnityEngine.InputSystem.EnhancedTouch.Touch;
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namespace Minigames.StatueDressup.UI
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{
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/// <summary>
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/// Detects and processes pinch gestures for scaling and rotation using Unity's new Input System (EnhancedTouch).
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/// Also detects single-tap dismissal and provides keyboard shortcuts for editor testing.
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/// </summary>
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public class PinchGestureHandler : MonoBehaviour
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{
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[Header("Gesture Settings")]
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[Tooltip("Minimum distance change to register as pinch scale gesture")]
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[SerializeField] private float minPinchDistance = 10f;
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[Tooltip("Sensitivity multiplier for scale changes")]
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[SerializeField] private float scaleSensitivity = 0.01f;
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[Tooltip("Sensitivity multiplier for rotation changes")]
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[SerializeField] private float rotationSensitivity = 1.0f;
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[Header("Editor Testing (Keyboard)")]
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[Tooltip("Keyboard rotation speed in degrees per second")]
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[SerializeField] private float keyboardRotationSpeed = 90f;
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[Tooltip("Keyboard scale speed per second")]
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[SerializeField] private float keyboardScaleSpeed = 0.5f;
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// Events
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public event Action<float> OnPinchScale;
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public event Action<float> OnPinchRotate;
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public event Action OnDismissTap;
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private bool _isActive;
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private float _previousDistance;
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private float _previousAngle;
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private double _touchStartTime;
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private bool _wasTouchTracked;
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/// <summary>
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/// Activate gesture detection
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/// </summary>
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public void Activate()
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{
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_isActive = true;
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_previousDistance = 0f;
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_previousAngle = 0f;
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_wasTouchTracked = false;
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// Enable enhanced touch support for new Input System
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if (!EnhancedTouchSupport.enabled)
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{
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EnhancedTouchSupport.Enable();
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}
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Logging.Debug("[PinchGestureHandler] Activated");
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}
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/// <summary>
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/// Deactivate gesture detection
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/// </summary>
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public void Deactivate()
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{
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_isActive = false;
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Logging.Debug("[PinchGestureHandler] Deactivated");
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}
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private void Update()
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{
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if (!_isActive) return;
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// Handle touch input (mobile) - using new Input System
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if (Touch.activeTouches.Count > 0)
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{
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HandleTouchInput();
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}
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// Handle keyboard input (editor testing)
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else if (Application.isEditor)
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{
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HandleKeyboardInput();
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}
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}
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/// <summary>
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/// Process touch input for pinch gestures and single-tap dismissal
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/// </summary>
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private void HandleTouchInput()
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{
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var activeTouches = Touch.activeTouches;
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// Single tap for dismissal
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if (activeTouches.Count == 1)
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{
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Touch touch = activeTouches[0];
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// Track touch start time
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if (touch.phase == UnityEngine.InputSystem.TouchPhase.Began)
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{
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_touchStartTime = touch.startTime;
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_wasTouchTracked = true;
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}
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// Detect tap (touch began and ended quickly - within 0.3 seconds)
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else if (touch.phase == UnityEngine.InputSystem.TouchPhase.Ended && _wasTouchTracked)
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{
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double touchDuration = Time.timeAsDouble - _touchStartTime;
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if (touchDuration < 0.3)
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{
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Logging.Debug("[PinchGestureHandler] Single tap detected for dismissal");
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OnDismissTap?.Invoke();
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}
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_wasTouchTracked = false;
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}
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}
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// Two-finger pinch for scale and rotation
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else if (activeTouches.Count == 2)
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{
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Touch touch0 = activeTouches[0];
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Touch touch1 = activeTouches[1];
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// Calculate current positions and distance
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Vector2 currentTouch0 = touch0.screenPosition;
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Vector2 currentTouch1 = touch1.screenPosition;
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float currentDistance = Vector2.Distance(currentTouch0, currentTouch1);
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float currentAngle = Mathf.Atan2(currentTouch1.y - currentTouch0.y, currentTouch1.x - currentTouch0.x) * Mathf.Rad2Deg;
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// Initialize on first frame of pinch
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if (touch0.phase == UnityEngine.InputSystem.TouchPhase.Began || touch1.phase == UnityEngine.InputSystem.TouchPhase.Began)
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{
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_previousDistance = currentDistance;
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_previousAngle = currentAngle;
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Logging.Debug("[PinchGestureHandler] Pinch gesture started");
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return;
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}
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// Process pinch scale (distance change)
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if (touch0.phase == UnityEngine.InputSystem.TouchPhase.Moved || touch1.phase == UnityEngine.InputSystem.TouchPhase.Moved)
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{
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if (_previousDistance > minPinchDistance)
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{
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float distanceDelta = currentDistance - _previousDistance;
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float scaleDelta = distanceDelta * scaleSensitivity;
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if (Mathf.Abs(scaleDelta) > 0.001f)
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{
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OnPinchScale?.Invoke(scaleDelta);
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Logging.Debug($"[PinchGestureHandler] Scale delta: {scaleDelta:F3}");
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}
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}
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// Process pinch rotation (angle change)
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float angleDelta = Mathf.DeltaAngle(_previousAngle, currentAngle) * rotationSensitivity;
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if (Mathf.Abs(angleDelta) > 0.5f)
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{
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OnPinchRotate?.Invoke(angleDelta);
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Logging.Debug($"[PinchGestureHandler] Rotation delta: {angleDelta:F1}°");
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}
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// Update previous values
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_previousDistance = currentDistance;
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_previousAngle = currentAngle;
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}
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}
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}
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/// <summary>
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/// Process keyboard input for editor testing
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/// Q/E for rotation, +/- for scale, Escape for dismissal
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/// </summary>
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private void HandleKeyboardInput()
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{
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var keyboard = Keyboard.current;
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if (keyboard == null) return;
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// Rotation with Q/E
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if (keyboard.qKey.isPressed)
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{
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float rotateDelta = -keyboardRotationSpeed * Time.deltaTime;
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OnPinchRotate?.Invoke(rotateDelta);
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}
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else if (keyboard.eKey.isPressed)
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{
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float rotateDelta = keyboardRotationSpeed * Time.deltaTime;
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OnPinchRotate?.Invoke(rotateDelta);
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}
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// Scale with +/- (equals key is where + is on keyboard)
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if (keyboard.equalsKey.isPressed || keyboard.numpadPlusKey.isPressed)
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{
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float scaleDelta = keyboardScaleSpeed * Time.deltaTime;
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OnPinchScale?.Invoke(scaleDelta);
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}
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else if (keyboard.minusKey.isPressed || keyboard.numpadMinusKey.isPressed)
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{
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float scaleDelta = -keyboardScaleSpeed * Time.deltaTime;
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OnPinchScale?.Invoke(scaleDelta);
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}
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// Dismissal with Escape or Space
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if (keyboard.escapeKey.wasPressedThisFrame || keyboard.spaceKey.wasPressedThisFrame)
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{
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Logging.Debug("[PinchGestureHandler] Keyboard dismissal detected");
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OnDismissTap?.Invoke();
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}
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}
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}
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}
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