64 lines
2.7 KiB
C#
64 lines
2.7 KiB
C#
using UnityEngine;
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namespace Saltosion.OneWeapon.Effects {
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public class DebrisParticle : MonoBehaviour {
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public LayerMask StickyLayers;
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public SpriteRenderer Renderer;
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public Vector2 LaunchForce = new Vector2();
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public bool Settled = false;
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public bool GetsStuck = true;
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public Sprite[] Sprites;
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private Rigidbody2D CurrentlyStuckOn = null;
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private Vector2 Velocity;
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private void Start() {
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transform.localScale = new Vector2(0.02f, 0.02f) + Random.value * new Vector2(0.10f, 0.10f);
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Velocity = LaunchForce + new Vector2(Random.value - 0.5f, Random.value - 0.5f);
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if (Sprites.Length > 0) {
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Renderer.sprite = Sprites[(int)(Random.value * int.MaxValue) % Sprites.Length];
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Renderer.flipX = Random.value < 0.5;
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Renderer.flipY = Random.value < 0.5;
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}
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}
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private void FixedUpdate() {
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Velocity *= 1.0f - Time.fixedDeltaTime * 20.0f;
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if (CurrentlyStuckOn != null) {
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bool IsStatic = CurrentlyStuckOn.bodyType == RigidbodyType2D.Static;
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Velocity *= 1.0f - Time.fixedDeltaTime * (IsStatic ? 50.0f : 15.0f);
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}
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if (Velocity.magnitude < 0.1) {
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if (CurrentlyStuckOn != null && GetsStuck) {
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transform.parent = CurrentlyStuckOn.transform;
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GetComponentInChildren<SpriteRenderer>().sortingLayerName = "Blood Particles (On characters)";
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if (transform.parent.tag == "Player" && Random.value < 0.5) {
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// Half of all blood particles are "drippy" so they drip away over time on the floor
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gameObject.AddComponent(typeof(BloodDripper));
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}
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}
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Destroy(GetComponent<BoxCollider2D>());
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Destroy(this);
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}
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Vector2 AppliedMovement = Velocity * Time.fixedDeltaTime;
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RaycastHit2D Hit = Physics2D.Raycast(transform.position, AppliedMovement, AppliedMovement.magnitude, StickyLayers);
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if (Hit.rigidbody != null && Hit.rigidbody.gameObject == Hit.collider.gameObject) {
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bool IsStatic = Hit.rigidbody.bodyType == RigidbodyType2D.Static;
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Velocity = Velocity.normalized * Mathf.Min(IsStatic ? 15.0f : 60.0f, Velocity.magnitude);
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CurrentlyStuckOn = Hit.rigidbody;
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AppliedMovement = Velocity * Time.fixedDeltaTime;
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} else if (CurrentlyStuckOn != null) {
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CurrentlyStuckOn = null;
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}
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Vector2 NewPosition = (Vector2)transform.position + AppliedMovement;
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transform.position = NewPosition;
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}
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}
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}
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