84 lines
2.7 KiB
C#
84 lines
2.7 KiB
C#
using AceFieldNewHorizon.Scripts.Tiles;
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using Godot;
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namespace AceFieldNewHorizon.Scripts.System;
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public partial class PlacementManager : Node2D
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{
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[Export] public GridManager Grid { get; set; }
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[Export] public BuildingRegistry Registry { get; set; }
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private string _currentBuildingId = "wall";
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private Vector2I _hoveredCell;
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private BaseTile _ghostBuilding;
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public void SetCurrentBuilding(string buildingId)
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{
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_currentBuildingId = buildingId;
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// Replace ghost immediately
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if (_ghostBuilding == null) return;
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_ghostBuilding.QueueFree();
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_ghostBuilding = null;
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}
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public override void _Process(double delta)
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{
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// Snap mouse to grid
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var mousePos = GetGlobalMousePosition();
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_hoveredCell = GridUtils.WorldToGrid(mousePos);
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if (_ghostBuilding == null)
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{
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var scene = Registry.GetScene(_currentBuildingId);
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if (scene == null) return;
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_ghostBuilding = (BaseTile)scene.Instantiate();
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_ghostBuilding.SetGhostMode(true);
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AddChild(_ghostBuilding);
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}
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var placementPos = GridUtils.GridToWorld(_hoveredCell);
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var spaceState = GetWorld2D().DirectSpaceState;
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var centerPos = placementPos + new Vector2(GridUtils.TileSize / 2f, GridUtils.TileSize / 2f);
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var query = new PhysicsPointQueryParameters2D
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{
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Position = centerPos,
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CollideWithBodies = true,
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CollideWithAreas = true,
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CollisionMask = uint.MaxValue // check against all layers/masks
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// Exclude = new Godot.Collections.Array<Rid>() // optional, see below
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};
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var collision = spaceState.IntersectPoint(query, 8);
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var canPlace = Grid.IsCellFree(_hoveredCell) && collision.Count == 0;
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_ghostBuilding.Position = placementPos;
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_ghostBuilding.SetGhostMode(canPlace);
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// Left click to place
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if (Input.IsActionPressed("build_tile") && canPlace)
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{
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var scene = Registry.GetScene(_currentBuildingId);
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if (scene == null) return;
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_ghostBuilding.FinalizePlacement();
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Grid.OccupyCell(_hoveredCell, _ghostBuilding);
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_ghostBuilding = (BaseTile)scene.Instantiate();
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_ghostBuilding.SetGhostMode(true);
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AddChild(_ghostBuilding);
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}
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if (Input.IsActionPressed("destroy_tile") && !Grid.IsCellFree(_hoveredCell))
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{
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// Right click to destroy
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var building = Grid.GetBuildingAtCell(_hoveredCell);
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if (building == null) return;
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building.QueueFree();
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Grid.FreeCell(_hoveredCell);
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}
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}
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} |