128 lines
4.3 KiB
C#
128 lines
4.3 KiB
C#
using UnityEngine;
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using GatherAndDefend.LevelEditor;
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using System.Collections;
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using UnityEngine.Tilemaps;
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using System.Threading.Tasks;
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using System;
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using GatherAndDefend.Events;
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using static LevelManager;
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/// <param name="position">The position the tile should be placed on</param>
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/// <param name="tile">the tile we should place</param>
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/// <param name="tilePlacement">the action of placing the tile on the tilemap</param>
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/// <returns></returns>
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public delegate Task PlacementAnimationHandler(GatherAndDefend.LevelEditor.TileData tileData, Action tilePlacement, Func<bool> shouldKillTask);
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public class LevelManagerScript : SingletonBehaviour<LevelManagerScript>
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{
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private Action updateAction = null;
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public bool loadOnStart = false;
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public Level firstLevel;
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[SerializeField] private SpriteRenderer _worldBackgroundSpriteRenderer;
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[SerializeField] private Sprite[] _worldBackgrounds;
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async void Start()
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{
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//only when the level is loaded do we start updating
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EventAggregator.Instance.GetEvent<LevelLoadedEvent>().Attach(Instance_LevelLoaded);
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EventAggregator.Instance.GetEvent<ExitingLevelEvent>().Attach(KillLoading);
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if (PlayerPrefs.GetInt(LoadingManager.LevelToLoad) >= 12)
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{
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_worldBackgroundSpriteRenderer.sprite = _worldBackgrounds[1];
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}
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if (loadOnStart && firstLevel)
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{
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await LevelManager.Instance.LoadLevel(firstLevel, PlacementAnimation);
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}
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}
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void OnDestroy()
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{
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EventAggregator.Instance.GetEvent<ExitingLevelEvent>().Detach(KillLoading);
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updateAction = null;
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}
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void Update()
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{
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updateAction?.Invoke();
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// Gala hack to win level instantly
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if (Input.GetKeyDown(KeyCode.Alpha0))
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{
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EventAggregator.Instance.GetEvent<LastWaveCompletedEvent>().Invoke();
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}
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}
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private void Instance_LevelLoaded(Level level)
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{
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//only when the level is loaded do we start updating
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updateAction = LevelManager.Instance.UpdateLevel;
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}
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/// <summary>
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/// the tile falls from the top of the screen, up to it's position on the tilemap
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/// </summary>
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/// <param name="position">where it should land</param>
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/// <param name="tile">what the tile represents</param>
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/// <param name="putTileOnTilemap">the action of actually placing the tile</param>
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/// <returns></returns>
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public static async Task PlacementAnimation(GatherAndDefend.LevelEditor.TileData tile, Action putTileOnTilemap, Func<bool> shouldKillTask)
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{
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const string layer = "Unit";
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float speed = 0;
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float acceleration = -9.81f;
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//create the falling GameObject that will placehold for the tile
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var tilePlaceholder = new GameObject("tile");
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tilePlaceholder.transform.SetParent(Instance.transform);
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var rend = tilePlaceholder.AddComponent<SpriteRenderer>();
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rend.sortingOrder = 10;
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rend.sortingLayerName = layer;
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if (tile.Tile is LevelTile)
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{
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rend.sprite = (tile.Tile as LevelTile).Sprite;
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}
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else
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{
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rend.sprite = (tile.Tile as Tile).sprite;
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}
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//position the tile over the board (past the camera's FOV)
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tilePlaceholder.transform.position = tile.Position + Vector3.up * Camera.main.orthographicSize * 2;
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var delta = tilePlaceholder.transform.position - tile.Position;
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var direction = delta.normalized;
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var signY = delta.y / Mathf.Abs(delta.y);
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while (true)
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{
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//if the placeholder was destroyed, stop
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if (!tilePlaceholder) break;
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//make the placeholder fall and check if we went past the target position
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speed += acceleration * Time.deltaTime;
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tilePlaceholder.transform.position += speed * Time.deltaTime * direction;
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var newDelta = tilePlaceholder.transform.position - tile.Position;
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var newSign = newDelta.y / Mathf.Abs(newDelta.y);
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if (newSign != signY) break;
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if (shouldKillTask())
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{
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return;
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}
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await Task.Yield();
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}
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//place the tile and destroy the placeholder
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putTileOnTilemap.Invoke();
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Destroy(tilePlaceholder);
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}
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void KillLoading()
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{
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LevelManager.Instance.KillLoading();
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}
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} |