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{fileID: 1993214205} + - {fileID: 22879099} diff --git a/Assets/Scenes/RopeTest.unity.meta b/Assets/Scenes/RopeTest.unity.meta new file mode 100644 index 0000000..41c5dd9 --- /dev/null +++ b/Assets/Scenes/RopeTest.unity.meta @@ -0,0 +1,7 @@ +fileFormatVersion: 2 +guid: cfc0abf7f9f0d774f918832b04042f61 +DefaultImporter: + externalObjects: {} + userData: + assetBundleName: + assetBundleVariant: diff --git a/Assets/Scripts/Extensions/GameObjectExtensions.cs b/Assets/Scripts/Extensions/GameObjectExtensions.cs new file mode 100644 index 0000000..74d8e75 --- /dev/null +++ b/Assets/Scripts/Extensions/GameObjectExtensions.cs @@ -0,0 +1,131 @@ +using UnityEngine; +using System.Linq; + +namespace UnityUtils +{ + public static class GameObjectExtensions + { + /// + /// This method is used to hide the GameObject in the Hierarchy view. + /// + /// + public static void HideInHierarchy(this GameObject gameObject) + { + gameObject.hideFlags = HideFlags.HideInHierarchy; + } + + /// + /// Gets a component of the given type attached to the GameObject. If that type of component does not exist, it adds one. + /// + /// + /// This method is useful when you don't know if a GameObject has a specific type of component, + /// but you want to work with that component regardless. Instead of checking and adding the component manually, + /// you can use this method to do both operations in one line. + /// + /// The type of the component to get or add. + /// The GameObject to get the component from or add the component to. + /// The existing component of the given type, or a new one if no such component exists. + public static T GetOrAdd(this GameObject gameObject) where T : Component + { + T component = gameObject.GetComponent(); + if (!component) component = gameObject.AddComponent(); + + return component; + } + + /// + /// Returns the object itself if it exists, null otherwise. + /// + /// + /// This method helps differentiate between a null reference and a destroyed Unity object. Unity's "== null" check + /// can incorrectly return true for destroyed objects, leading to misleading behaviour. The OrNull method use + /// Unity's "null check", and if the object has been marked for destruction, it ensures an actual null reference is returned, + /// aiding in correctly chaining operations and preventing NullReferenceExceptions. + /// + /// The type of the object. + /// The object being checked. + /// The object itself if it exists and not destroyed, null otherwise. + public static T OrNull(this T obj) where T : Object => obj ? obj : null; + + /// + /// Destroys all children of the game object + /// + /// GameObject whose children are to be destroyed. + public static void DestroyChildren(this GameObject gameObject) + { + gameObject.transform.DestroyChildren(); + } + + /// + /// Immediately destroys all children of the given GameObject. + /// + /// GameObject whose children are to be destroyed. + public static void DestroyChildrenImmediate(this GameObject gameObject) + { + gameObject.transform.DestroyChildrenImmediate(); + } + + /// + /// Enables all child GameObjects associated with the given GameObject. + /// + /// GameObject whose child GameObjects are to be enabled. + public static void EnableChildren(this GameObject gameObject) + { + gameObject.transform.EnableChildren(); + } + + /// + /// Disables all child GameObjects associated with the given GameObject. + /// + /// GameObject whose child GameObjects are to be disabled. + public static void DisableChildren(this GameObject gameObject) + { + gameObject.transform.DisableChildren(); + } + + /// + /// Resets the GameObject's transform's position, rotation, and scale to their default values. + /// + /// GameObject whose transformation is to be reset. + public static void ResetTransformation(this GameObject gameObject) + { + gameObject.transform.Reset(); + } + + /// + /// Returns the hierarchical path in the Unity scene hierarchy for this GameObject. + /// + /// The GameObject to get the path for. + /// A string representing the full hierarchical path of this GameObject in the Unity scene. + /// This is a '/'-separated string where each part is the name of a parent, starting from the root parent and ending + /// with the name of the specified GameObjects parent. + public static string Path(this GameObject gameObject) + { + return "/" + string.Join("/", + gameObject.GetComponentsInParent().Select(t => t.name).Reverse().ToArray()); + } + + /// + /// Returns the full hierarchical path in the Unity scene hierarchy for this GameObject. + /// + /// The GameObject to get the path for. + /// A string representing the full hierarchical path of this GameObject in the Unity scene. + /// This is a '/'-separated string where each part is the name of a parent, starting from the root parent and ending + /// with the name of the specified GameObject itself. + public static string PathFull(this GameObject gameObject) + { + return gameObject.Path() + "/" + gameObject.name; + } + + /// + /// Recursively sets the provided layer for this GameObject and all of its descendants in the Unity scene hierarchy. + /// + /// The GameObject to set layers for. + /// The layer number to set for GameObject and all of its descendants. + public static void SetLayersRecursively(this GameObject gameObject, int layer) + { + gameObject.layer = layer; + gameObject.transform.ForEveryChild(child => child.gameObject.SetLayersRecursively(layer)); + } + } +} diff --git a/Assets/Scripts/Extensions/GameObjectExtensions.cs.meta b/Assets/Scripts/Extensions/GameObjectExtensions.cs.meta new file mode 100644 index 0000000..8d4cc67 --- /dev/null +++ b/Assets/Scripts/Extensions/GameObjectExtensions.cs.meta @@ -0,0 +1,11 @@ +fileFormatVersion: 2 +guid: 1fc386696b14b914cbae26f3c3a51a5a +MonoImporter: + externalObjects: {} + serializedVersion: 2 + defaultReferences: [] + executionOrder: 0 + icon: {instanceID: 0} + userData: + assetBundleName: + assetBundleVariant: diff --git a/Assets/Scripts/Extensions/TransformExtensions.cs b/Assets/Scripts/Extensions/TransformExtensions.cs new file mode 100644 index 0000000..ebdb88c --- /dev/null +++ b/Assets/Scripts/Extensions/TransformExtensions.cs @@ -0,0 +1,98 @@ +using System; +using System.Collections.Generic; +using UnityEngine; +using Object = UnityEngine.Object; + +namespace UnityUtils +{ + public static class TransformExtensions + { + /// + /// Retrieves all the children of a given Transform. + /// + /// + /// This method can be used with LINQ to perform operations on all child Transforms. For example, + /// you could use it to find all children with a specific tag, to disable all children, etc. + /// Transform implements IEnumerable and the GetEnumerator method which returns an IEnumerator of all its children. + /// + /// The Transform to retrieve children from. + /// An IEnumerable<Transform> containing all the child Transforms of the parent. + public static IEnumerable Children(this Transform parent) + { + foreach (Transform child in parent) + { + yield return child; + } + } + + /// + /// Resets transform's position, scale and rotation + /// + /// Transform to use + public static void Reset(this Transform transform) + { + transform.position = Vector3.zero; + transform.localRotation = Quaternion.identity; + transform.localScale = Vector3.one; + } + + /// + /// Destroys all child game objects of the given transform. + /// + /// The Transform whose child game objects are to be destroyed. + public static void DestroyChildren(this Transform parent) + { + parent.ForEveryChild(child => Object.Destroy(child.gameObject)); + } + + /// + /// Immediately destroys all child game objects of the given transform. + /// + /// The Transform whose child game objects are to be immediately destroyed. + public static void DestroyChildrenImmediate(this Transform parent) + { + parent.ForEveryChild(child => Object.DestroyImmediate(child.gameObject)); + } + + /// + /// Enables all child game objects of the given transform. + /// + /// The Transform whose child game objects are to be enabled. + public static void EnableChildren(this Transform parent) + { + parent.ForEveryChild(child => child.gameObject.SetActive(true)); + } + + /// + /// Disables all child game objects of the given transform. + /// + /// The Transform whose child game objects are to be disabled. + public static void DisableChildren(this Transform parent) + { + parent.ForEveryChild(child => child.gameObject.SetActive(false)); + } + + /// + /// Executes a specified action for each child of a given transform. + /// + /// The parent transform. + /// The action to be performed on each child. + /// + /// This method iterates over all child transforms in reverse order and executes a given action on them. + /// The action is a delegate that takes a Transform as parameter. + /// + public static void ForEveryChild(this Transform parent, System.Action action) + { + for (var i = parent.childCount - 1; i >= 0; i--) + { + action(parent.GetChild(i)); + } + } + + [Obsolete("Renamed to ForEveryChild")] + static void PerformActionOnChildren(this Transform parent, System.Action action) + { + parent.ForEveryChild(action); + } + } +} \ No newline at end of file diff --git a/Assets/Scripts/Extensions/TransformExtensions.cs.meta b/Assets/Scripts/Extensions/TransformExtensions.cs.meta new file mode 100644 index 0000000..da47cb8 --- /dev/null +++ b/Assets/Scripts/Extensions/TransformExtensions.cs.meta @@ -0,0 +1,11 @@ +fileFormatVersion: 2 +guid: 3bc029dcadc3ccd40ad4c6a3f51eac64 +MonoImporter: + externalObjects: {} + serializedVersion: 2 + defaultReferences: [] + executionOrder: 0 + icon: {instanceID: 0} + userData: + assetBundleName: + assetBundleVariant: diff --git a/Assets/Scripts/Extensions/Vector2Extensions.cs b/Assets/Scripts/Extensions/Vector2Extensions.cs new file mode 100644 index 0000000..8b98d2f --- /dev/null +++ b/Assets/Scripts/Extensions/Vector2Extensions.cs @@ -0,0 +1,35 @@ +using UnityEngine; + +namespace UnityUtils +{ + public static class Vector2Extensions + { + /// + /// Adds to any x y values of a Vector2 + /// + public static Vector2 Add(this Vector2 vector2, float x = 0, float y = 0) + { + return new Vector2(vector2.x + x, vector2.y + y); + } + + /// + /// Sets any x y values of a Vector2 + /// + public static Vector2 With(this Vector2 vector2, float? x = null, float? y = null) + { + return new Vector2(x ?? vector2.x, y ?? vector2.y); + } + + /// + /// Returns a Boolean indicating whether the current Vector2 is in a given range from another Vector2 + /// + /// The current Vector2 position + /// The Vector2 position to compare against + /// The range value to compare against + /// True if the current Vector2 is in the given range from the target Vector2, false otherwise + public static bool InRangeOf(this Vector2 current, Vector2 target, float range) + { + return (current - target).sqrMagnitude <= range * range; + } + } +} \ No newline at end of file diff --git a/Assets/Scripts/Extensions/Vector2Extensions.cs.meta b/Assets/Scripts/Extensions/Vector2Extensions.cs.meta new file mode 100644 index 0000000..8e79e31 --- /dev/null +++ b/Assets/Scripts/Extensions/Vector2Extensions.cs.meta @@ -0,0 +1,11 @@ +fileFormatVersion: 2 +guid: 69ebf1c43ff162f488b3b1d0ae557d78 +MonoImporter: + externalObjects: {} + serializedVersion: 2 + defaultReferences: [] + executionOrder: 0 + icon: {instanceID: 0} + userData: + assetBundleName: + assetBundleVariant: diff --git a/Assets/Scripts/Extensions/Vector3Extensions.cs b/Assets/Scripts/Extensions/Vector3Extensions.cs new file mode 100644 index 0000000..b5c3fe0 --- /dev/null +++ b/Assets/Scripts/Extensions/Vector3Extensions.cs @@ -0,0 +1,60 @@ +using UnityEngine; + +namespace UnityUtils +{ + public static class Vector3Extensions + { + /// + /// Sets any x y z values of a Vector3 + /// + public static Vector3 With(this Vector3 vector, float? x = null, float? y = null, float? z = null) + { + return new Vector3(x ?? vector.x, y ?? vector.y, z ?? vector.z); + } + + /// + /// Adds to any x y z values of a Vector3 + /// + public static Vector3 Add(this Vector3 vector, float x = 0, float y = 0, float z = 0) + { + return new Vector3(vector.x + x, vector.y + y, vector.z + z); + } + + /// + /// Returns a Boolean indicating whether the current Vector3 is in a given range from another Vector3 + /// + /// The current Vector3 position + /// The Vector3 position to compare against + /// The range value to compare against + /// True if the current Vector3 is in the given range from the target Vector3, false otherwise + public static bool InRangeOf(this Vector3 current, Vector3 target, float range) + { + return (current - target).sqrMagnitude <= range * range; + } + + /// + /// Divides two Vector3 objects component-wise. + /// + /// + /// For each component in v0 (x, y, z), it is divided by the corresponding component in v1 if the component in v1 is not zero. + /// Otherwise, the component in v0 remains unchanged. + /// + /// + /// Use 'ComponentDivide' to scale a game object proportionally: + /// + /// myObject.transform.localScale = originalScale.ComponentDivide(targetDimensions); + /// + /// This scales the object size to fit within the target dimensions while maintaining its original proportions. + /// + /// The Vector3 object that this method extends. + /// The Vector3 object by which v0 is divided. + /// A new Vector3 object resulting from the component-wise division. + public static Vector3 ComponentDivide(this Vector3 v0, Vector3 v1) + { + return new Vector3( + v1.x != 0 ? v0.x / v1.x : v0.x, + v1.y != 0 ? v0.y / v1.y : v0.y, + v1.z != 0 ? v0.z / v1.z : v0.z); + } + } +} diff --git a/Assets/Scripts/Extensions/Vector3Extensions.cs.meta b/Assets/Scripts/Extensions/Vector3Extensions.cs.meta new file mode 100644 index 0000000..2882baf --- /dev/null +++ b/Assets/Scripts/Extensions/Vector3Extensions.cs.meta @@ -0,0 +1,11 @@ +fileFormatVersion: 2 +guid: fde3957705d25994292dd59ab09ce951 +MonoImporter: + externalObjects: {} + serializedVersion: 2 + defaultReferences: [] + executionOrder: 0 + icon: {instanceID: 0} + userData: + assetBundleName: + assetBundleVariant: diff --git a/Assets/Scripts/Player/PlayerHP.cs b/Assets/Scripts/Player/PlayerHP.cs index 02b2c04..9c70ec6 100644 --- a/Assets/Scripts/Player/PlayerHP.cs +++ b/Assets/Scripts/Player/PlayerHP.cs @@ -24,7 +24,10 @@ public class PlayerHP : MonoBehaviour healthText.text = "Health: " + currentHealth; } else if (healthText != null && currentHealth <= 0) - healthText.text = "Health: " + 0; + healthText.text = "Health: 0"; + + if (Input.GetKeyDown(KeyCode.Space)) + TakeDamage(5); } public void TakeDamage(float damage) diff --git a/Assets/Scripts/Rope/Point.cs b/Assets/Scripts/Rope/Point.cs new file mode 100644 index 0000000..65a928d --- /dev/null +++ b/Assets/Scripts/Rope/Point.cs @@ -0,0 +1,15 @@ +using UnityEngine; + +[System.Serializable] +public class Point +{ + public Vector2 position, prevPosition; + public bool locked; + + public Point(Vector2 position, bool locked = false) + { + this.position = position; + this.prevPosition = position; + this.locked = locked; + } +} \ No newline at end of file diff --git a/Assets/Scripts/Rope/Point.cs.meta b/Assets/Scripts/Rope/Point.cs.meta new file mode 100644 index 0000000..dc66062 --- /dev/null +++ b/Assets/Scripts/Rope/Point.cs.meta @@ -0,0 +1,11 @@ +fileFormatVersion: 2 +guid: a07dfdaccf053414085b41179c0ab234 +MonoImporter: + externalObjects: {} + serializedVersion: 2 + defaultReferences: [] + executionOrder: 0 + icon: {instanceID: 0} + userData: + assetBundleName: + assetBundleVariant: diff --git a/Assets/Scripts/Rope/Rope.cs b/Assets/Scripts/Rope/Rope.cs new file mode 100644 index 0000000..de4d20b --- /dev/null +++ b/Assets/Scripts/Rope/Rope.cs @@ -0,0 +1,14 @@ +using System.Collections.Generic; +using UnityEngine; + +public class Rope +{ + public List points { get ; private set; } + public List sticks { get; private set; } + + public Rope(List points, List sticks) + { + this.points = points; + this.sticks = sticks; + } +} diff --git a/Assets/Scripts/Rope/Rope.cs.meta b/Assets/Scripts/Rope/Rope.cs.meta new file mode 100644 index 0000000..6b679cf --- /dev/null +++ b/Assets/Scripts/Rope/Rope.cs.meta @@ -0,0 +1,11 @@ +fileFormatVersion: 2 +guid: fb42a2c8fa09c32489663226dc7167e1 +MonoImporter: + externalObjects: {} + serializedVersion: 2 + defaultReferences: [] + executionOrder: 0 + icon: {instanceID: 0} + userData: + assetBundleName: + assetBundleVariant: diff --git a/Assets/Scripts/Rope/RopeBuilder.cs b/Assets/Scripts/Rope/RopeBuilder.cs new file mode 100644 index 0000000..2de53aa --- /dev/null +++ b/Assets/Scripts/Rope/RopeBuilder.cs @@ -0,0 +1,32 @@ +using System.Collections; +using System.Collections.Generic; +using UnityEngine; + +public class RopeBuilder +{ + List points = new(); + List sticks = new(); + + public RopeBuilder AddPoint(Point point) + { + points.Add(point); + return this; + } + + public RopeBuilder ConnectPoints(Point A, Point B) + { + sticks.Add(new Stick(A, B)); + return this; + } + + public RopeBuilder ConnectPoints(int idxA, int idxB) + { + sticks.Add(new Stick(points[idxA], points[idxB])); + return this; + } + + public Rope Build() + { + return new Rope(points: points, sticks: sticks); + } +} diff --git a/Assets/Scripts/Rope/RopeBuilder.cs.meta b/Assets/Scripts/Rope/RopeBuilder.cs.meta new file mode 100644 index 0000000..d98389a --- /dev/null +++ b/Assets/Scripts/Rope/RopeBuilder.cs.meta @@ -0,0 +1,11 @@ +fileFormatVersion: 2 +guid: e87b5185694f23a4390596cc0294bee7 +MonoImporter: + externalObjects: {} + serializedVersion: 2 + defaultReferences: [] + executionOrder: 0 + icon: {instanceID: 0} + userData: + assetBundleName: + assetBundleVariant: diff --git a/Assets/Scripts/Rope/RopeSimulator.cs b/Assets/Scripts/Rope/RopeSimulator.cs new file mode 100644 index 0000000..d7bf275 --- /dev/null +++ b/Assets/Scripts/Rope/RopeSimulator.cs @@ -0,0 +1,129 @@ +using System.Collections; +using System.Collections.Generic; +using UnityEngine; +using UnityUtils; + +public class RopeSimulator : MonoBehaviour +{ + [SerializeField] + private float gravity = 10; + + [SerializeField] + private float solveIterations = 10; + + [SerializeField] + private float constrainStickMinLength = 0.1f; + + int[] order; + + public Vector2 testPos; + + Rope rope; + + private void Start() + { + rope = new RopeBuilder() + .AddPoint(new Point(testPos, locked: true)) + .AddPoint(new Point(testPos.Add(x:5f))) + .AddPoint(new Point(testPos.Add(x: 10f))) + .AddPoint(new Point(testPos.Add(x: 15f))) + .AddPoint(new Point(testPos.Add(x: 20f))) + .ConnectPoints(0, 1) + .ConnectPoints(1, 2) + .ConnectPoints(2, 3) + .ConnectPoints(3, 4) + .Build(); + CreateOrderArray(); + } + + private void Update() + { + Simulate(); + } + + private void OnDrawGizmos() + { + if (!Application.isPlaying) return; + + foreach (var point in rope.points) + { + Debug.Log($"pos: {point.position}"); + Gizmos.DrawSphere(point.position, 1f); + } + } + + void Simulate() + { + foreach (Point p in rope.points) + { + if (!p.locked) + { + Vector2 positionBeforeUpdate = p.position; + p.position += p.position - p.prevPosition; + p.position += Vector2.down * gravity * Time.deltaTime * Time.deltaTime; + p.prevPosition = positionBeforeUpdate; + } + } + + for (int i = 0; i < solveIterations; i++) + { + for (int s = 0; s < rope.sticks.Count; s++) + { + Stick stick = rope.sticks[order[s]]; + if (stick.dead) + { + continue; + } + + Vector2 stickCentre = (stick.A.position + stick.B.position) / 2; + Vector2 stickDir = (stick.A.position - stick.B.position).normalized; + float length = (stick.A.position - stick.B.position).magnitude; + + if (length > stick.length || length > constrainStickMinLength) + { + if (!stick.A.locked) + { + stick.A.position = stickCentre + stickDir * stick.length / 2; + } + if (!stick.B.locked) + { + stick.B.position = stickCentre - stickDir * stick.length / 2; + } + } + + } + } + } + + void CreateOrderArray() + { + order = new int[rope.sticks.Count]; + for (int i = 0; i < order.Length; i++) + { + order[i] = i; + } + ShuffleArray(order, new System.Random()); + } + + public static T[] ShuffleArray(T[] array, System.Random prng) + { + + int elementsRemainingToShuffle = array.Length; + int randomIndex = 0; + + while (elementsRemainingToShuffle > 1) + { + + // Choose a random element from array + randomIndex = prng.Next(0, elementsRemainingToShuffle); + T chosenElement = array[randomIndex]; + + // Swap the randomly chosen element with the last unshuffled element in the array + elementsRemainingToShuffle--; + array[randomIndex] = array[elementsRemainingToShuffle]; + array[elementsRemainingToShuffle] = chosenElement; + } + + return array; + } +} diff --git a/Assets/Scripts/Rope/RopeSimulator.cs.meta b/Assets/Scripts/Rope/RopeSimulator.cs.meta new file mode 100644 index 0000000..632c74c --- /dev/null +++ b/Assets/Scripts/Rope/RopeSimulator.cs.meta @@ -0,0 +1,11 @@ +fileFormatVersion: 2 +guid: 27ac133d9e10e544ba603e07122e3359 +MonoImporter: + externalObjects: {} + serializedVersion: 2 + defaultReferences: [] + executionOrder: 0 + icon: {instanceID: 0} + userData: + assetBundleName: + assetBundleVariant: diff --git a/Assets/Scripts/Rope/Stick.cs b/Assets/Scripts/Rope/Stick.cs new file mode 100644 index 0000000..078e0fe --- /dev/null +++ b/Assets/Scripts/Rope/Stick.cs @@ -0,0 +1,16 @@ +using UnityEngine; + +[System.Serializable] +public class Stick +{ + public Point A, B; + public float length; + public bool dead; + + public Stick(Point pointA, Point pointB) + { + this.A = pointA; + this.B = pointB; + length = Vector2.Distance(pointA.position, pointB.position); + } +} \ No newline at end of file diff --git a/Assets/Scripts/Rope/Stick.cs.meta b/Assets/Scripts/Rope/Stick.cs.meta new file mode 100644 index 0000000..0ce0dd4 --- /dev/null +++ b/Assets/Scripts/Rope/Stick.cs.meta @@ -0,0 +1,11 @@ +fileFormatVersion: 2 +guid: 61cc19e8607c5c243941e77804b59b30 +MonoImporter: + externalObjects: {} + serializedVersion: 2 + defaultReferences: [] + executionOrder: 0 + icon: {instanceID: 0} + userData: + assetBundleName: + assetBundleVariant: