using Godot;

namespace IslaApocalypse.Core
{
	public class ChunkData
	{
		public Vector2I ChunkPosition; // The X/Z coordinate of this chunk (e.g., 0,0 or 1,0)
		
		// We need Width+1 and Depth+1 so the Marching Cubes mesh connects seamlessly to the neighbor chunks!
	   // public float[,,] Densities = new float[Constants.CHUNK_SIZE_X + 1, Constants.CHUNK_HEIGHT, Constants.CHUNK_SIZE_Z + 1];
	   // public byte[,,] BlockIDs = new byte[Constants.CHUNK_SIZE_X + 1, Constants.CHUNK_HEIGHT, Constants.CHUNK_SIZE_Z + 1];
		// OLD: 
		// Densities = new float[Constants.CHUNK_SIZE_X, Constants.CHUNK_HEIGHT, Constants.CHUNK_SIZE_Z];
		// BlockIDs = new int[Constants.CHUNK_SIZE_X, Constants.CHUNK_HEIGHT, Constants.CHUNK_SIZE_Z];

		// NEW (Fix 3): We expand by 1 to sample the neighbor's border perfectly without seams!
		public float[,,] Densities = new float[Constants.CHUNK_SIZE_X + 1, Constants.CHUNK_HEIGHT + 1, Constants.CHUNK_SIZE_Z + 1];
		public byte[,,] BlockIDs = new byte[Constants.CHUNK_SIZE_X + 1, Constants.CHUNK_HEIGHT + 1, Constants.CHUNK_SIZE_Z + 1];

		// --- PER-COLUMN DATA, FOR VERTEX COLOURING ONLY ----------------------
		// One entry per X/Z column of this chunk (same +1 padding as above).
		//
		// Why these exist: BlockIDs are classified against a ROUNDED surface
		// height, which is fine for storage but makes the rendered colour jump
		// in whole-metre steps (the "contour band" artefact). The renderer
		// instead reads the TRUE, unrounded surface height from here, so the
		// material fade follows the real ground.
		//
		// These are read by the mesher only. Nothing about geometry, collision
		// or storage depends on them.
		public float[,] SurfaceHeights = new float[Constants.CHUNK_SIZE_X + 1, Constants.CHUNK_SIZE_Z + 1];
		public Biome[,] ColumnBiomes = new Biome[Constants.CHUNK_SIZE_X + 1, Constants.CHUNK_SIZE_Z + 1];
		public bool[,] ColumnIsRoad = new bool[Constants.CHUNK_SIZE_X + 1, Constants.CHUNK_SIZE_Z + 1];

		// For our future delta-save system
		public bool IsPlayerProtected = false;
		public bool NeedsSaving = false;

		public ChunkData(Vector2I position)
		{
			ChunkPosition = position;
		}
	}
}