rudder
77 lines
2.6 KiB
C#
77 lines
2.6 KiB
C#
using System;
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using System.Collections.Generic;
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using UnityEngine;
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namespace LiveOpsExamples
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{
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/// <summary>
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/// Spawns collectible snacks at random positions inside the configured bounds,
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/// picking a random collectible slug (moonberry/acorn/star/snack) and applying
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/// its sprite from the library. Mirrors GameScene.spawnCollectible.
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///
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/// Phaser spawn margins x∈[115,1165], y∈[118,625] px on a 1280×720 field at
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/// 100 PPU map to x∈[-5.25,5.25], y∈[-2.65,2.42] world units (y is flipped).
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/// </summary>
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public class SnackSpawner : MonoBehaviour
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{
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private static readonly string[] CollectibleSlugs = { "moonberry", "acorn", "star", "snack" };
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[SerializeField] private Snack prefab;
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[SerializeField] private CozyCollectorSpriteLibrary library;
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[SerializeField] private Vector2 spawnMin = new Vector2(-5.25f, -2.65f);
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[SerializeField] private Vector2 spawnMax = new Vector2(5.25f, 2.42f);
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[SerializeField] private Transform parent;
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private readonly List<Snack> _spawned = new List<Snack>();
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public SpriteRenderer Player { get; set; }
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public event Action<Snack> Collected;
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public Snack Spawn()
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{
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var slug = CollectibleSlugs[UnityEngine.Random.Range(0, CollectibleSlugs.Length)];
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var position = new Vector3(
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UnityEngine.Random.Range(spawnMin.x, spawnMax.x),
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UnityEngine.Random.Range(spawnMin.y, spawnMax.y),
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0f);
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var snack = Instantiate(prefab, position, Quaternion.identity, parent);
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var sprite = library.ForSlug(slug);
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snack.GetComponent<SpriteRenderer>().sprite = sprite;
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// Phaser setDisplaySize(52, 52) at 100 PPU -> 0.52 x 0.52 world units.
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var spriteBounds = sprite.bounds.size;
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var scale = new Vector3(0.52f / spriteBounds.x, 0.52f / spriteBounds.y, 1f);
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snack.transform.localScale = scale;
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// The prefab collider radius is tuned to snack.png; a circle collider's
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// world radius scales by the largest transform axis, so retune per sprite.
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snack.GetComponent<CircleCollider2D>().radius = 0.22f / Mathf.Max(scale.x, scale.y);
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snack.Player = Player;
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snack.Collected += OnSnackCollected;
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_spawned.Add(snack);
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return snack;
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}
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public void Clear()
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{
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foreach (var snack in _spawned)
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{
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if (snack == null)
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continue;
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snack.Collected -= OnSnackCollected;
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Destroy(snack.gameObject);
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}
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_spawned.Clear();
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}
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private void OnSnackCollected(Snack snack)
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{
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snack.Collected -= OnSnackCollected;
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_spawned.Remove(snack);
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Collected?.Invoke(snack);
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}
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}
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}
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