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- using System.Collections;
- using System.Collections.Generic;
- using UnityEngine;
- using KairoEngine.Chunks;
- using KairoEngine.Core;
- using KairoEngine.UI;
- using Utils = KairoEngine.Utility.Utilities;
- using Sirenix.OdinInspector;
- namespace KairoEngine.VoxelBuildingSystem
- {
- [HideMonoScript]
- public class VoxelBuildingSystem : MonoBehaviour
- {
- public static VoxelBuildingSystem instance;
- public Vector3Int chunkSize = new Vector3Int(16, 16, 16);
- public Vector3Int chunkCount = new Vector3Int(3, 3, 3);
- public Vector3 voxelSize = new Vector3(1f, 1f, 1f);
- public LayerMask layerMask;
- public List<BuildingTemplate> buildingTemplates = new List<BuildingTemplate>();
- [ReadOnly] public int currentBuildingTemplate;
- [ReadOnly] public VoxelBuildingTool tool = VoxelBuildingTool.Build;
- public ChunkSystem<VoxelBuildData> chunkSystem;
- [HideInInspector] public Dictionary<Vector3Int, BuildingBehaviour> buildings = new Dictionary<Vector3Int, BuildingBehaviour>();
- [HideInInspector] public List<BuildingBehaviour> buildingList = new List<BuildingBehaviour>();
-
- private Vector3 pointerPosition;
- public void CreateVoxelSystem()
- {
- chunkSystem = new ChunkSystem<VoxelBuildData>(chunkSize, false);
- for (int x = 0; x < chunkCount.x; x++) {
- for (int z = 0; z < chunkCount.z; z++) {
- for (int y = 0; y < chunkCount.y; y++) {
- Vector3Int chunkPos = new Vector3Int(x * chunkSize.x, y * chunkSize.y, z * chunkSize.z);
- chunkSystem.CreateChunk(chunkPos, (Chunk<VoxelBuildData> c, Vector3Int pos) => new VoxelBuildData(pos, -1));
- }
- }
- }
- }
- void Start() => CreateVoxelSystem();
- void Update()
- {
- pointerPosition = Utils.GetMouseWorldPosition(layerMask.value);
- if(!MouseInputUIBlocker.BlockedByUI)
- {
- switch (tool)
- {
- case VoxelBuildingTool.Build:
- if(Input.GetKeyDown(KeyCode.R)) RotateBuilding();
- if(Input.GetMouseButtonDown(0)) PlaceBuilding(pointerPosition);
- break;
- case VoxelBuildingTool.Remove:
- if(Input.GetMouseButtonDown(0)) RemoveBuilding(pointerPosition);
- break;
- default:
- break;
- }
- }
- if(Input.GetKeyDown(KeyCode.Alpha1)) CycleBuildingTemplate();
- }
- public void RotateBuilding() {}
-
- public void PlaceBuilding(Vector3 pos)
- {
- Vector3 worldPos = GetMouseWorldSnappedPosition();
- Vector3Int voxelPos = FindVoxelPosition(pointerPosition);
- if(!CanPlaceBuilding(voxelPos, currentBuildingTemplate)) return;
- Transform newBuilding = Instantiate(buildingTemplates[currentBuildingTemplate].prefab, worldPos, this.transform.rotation, this.transform);
- BuildingBehaviour buildingBehaviour = newBuilding.GetComponent<BuildingBehaviour>();
- if(buildingBehaviour == null)
- {
- Debug.LogError($"Building prefab has no BuildingBehaviour component! Cannot place building", newBuilding);
- Destroy(newBuilding);
- return;
- }
- buildingBehaviour.origin = voxelPos;
- buildings.Add(voxelPos, buildingBehaviour);
- buildingList.Add(buildingBehaviour);
- List<Vector3Int> voxelPositions = GetBuildingVoxelList(voxelPos, currentBuildingTemplate);
- for (int i = 0; i < voxelPositions.Count; i++)
- {
- VoxelBuildData block = chunkSystem.GetBlock(voxelPositions[i]);
- block.buildingIndex = buildingList.Count - 1;
- block.buildingTemplateIndex = currentBuildingTemplate;
- chunkSystem.SetBlock(voxelPositions[i], block);
- }
- }
- public bool CanPlaceBuilding(Vector3Int voxelPos, int buildingTemplateIndex)
- {
- List<Vector3Int> voxelPositions = GetBuildingVoxelList(voxelPos, buildingTemplateIndex);
- for (int i = 0; i < voxelPositions.Count; i++)
- {
- VoxelBuildData block = chunkSystem.GetBlock(voxelPositions[i]);
- if(block.buildingIndex != -1)
- {
- Debug.Log("Cannot place building, place is occupied.");
- return false;
- }
- }
- return true;
- }
- public void RemoveBuilding(Vector3 pos) {}
- public Vector3Int FindVoxelPosition(Vector3 pos)
- {
- return new Vector3Int(Mathf.FloorToInt(pos.x/voxelSize.x), Mathf.FloorToInt(pos.y/voxelSize.y), Mathf.FloorToInt(pos.z/voxelSize.z));
- }
- public Vector3 GetMouseWorldSnappedPosition() => (Vector3)FindVoxelPosition(pointerPosition);
- public void CycleBuildingTemplate()
- {
- if(currentBuildingTemplate < buildingTemplates.Count - 1) currentBuildingTemplate += 1;
- else currentBuildingTemplate = 0;
- GenericEvents.Trigger("OnBuildingTemplateChanged");
- Debug.Log($"Changing current building template to {currentBuildingTemplate}");
- }
- public List<Vector3Int> GetBuildingVoxelList(Vector3Int offset, int buildingTemplateId)
- {
- BuildingTemplate template = buildingTemplates[buildingTemplateId];
- List<Vector3Int> positionList = new List<Vector3Int>();
- for(int x = 0; x < template.size.x; x++)
- {
- for (int y = 0; y < template.size.y; y++)
- {
- for (int z = 0; z < template.size.z; z++)
- {
- Vector3Int pos = new Vector3Int(offset.x + x, offset.y + y, offset.z + z);
- positionList.Add(pos);
- Debug.Log(pos);
- }
- }
- }
- Debug.Log($"{positionList.Count} voxel positions found for building \"{buildingTemplates[buildingTemplateId].title}\"");
- return positionList;
- }
-
- }
- public enum VoxelBuildingTool
- {
- None,
- Build,
- Remove
- }
- }
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