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367 lines
12 KiB
367 lines
12 KiB
using Networking.Server;
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using System.Collections.Generic;
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using UnityEngine;
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[CreateAssetMenu(menuName = "Major Project/Map Generation/Map Manager")]
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public class MapManager : ScriptableObject
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{
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public ClientList clients;
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public GameObject spawn;
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public GameObject spawn4; //The section to use as a spawn-point for games with 2-5 players
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public GameObject spawn8; //The section to use a spawn-point for games with 5-8 players
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//In 5-player games, we choose between them at random
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public List<MapSection> sections; //The list of sections to choose from after starting
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//Split up the inspector lists to make them easier to manage. They'll be combined on initialisation
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public List<SectionList> sectionLists;
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public int minConns = 2; //The minimum number of valid connections between two map sections for them to be allowed to link up
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public List<MapSection> activeSections; //The list of sections that have been placed on the map (and not removed)
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MapSection lastSection; //Which map-section was most recently added?
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public float startX; //The x-position of the current start of the track
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float startXinit = -16.0f;
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float endX; //The x-position of the current end of the track
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int totalSections; //How many sections have been added? Including ones that have been deleted
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int initialPlayerCount;
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int diffStart = 0; //Initial difficulty rating
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int diffCap = 5; //The highest the difficulty rating can go
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int difficulty; //Current difficulty rating
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int widthMin; //The minimum widthIn that we want for a new map section
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int widthMax; //The maximum widthIn that we want for a new map section
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int widthMinMin = 3; //The minimum to which widthMin can be reduced
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int widthMaxMin = 5; //The minimum to which widthMax can be reduced
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public void init()
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{
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sections = new List<MapSection>();
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startX = startXinit;
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endX = startX;
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totalSections = 0;
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foreach (SectionList sectionList in sectionLists)
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{
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foreach (MapSection section in sectionList.sectionList)
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{
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sections.Add(section);
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}
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}
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initialPlayerCount = clients.ConnectedClients.Count;
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activeSections = new List<MapSection>();
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if (initialPlayerCount < 5)
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{
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addSection(spawn4.GetComponent<MapSection>());
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}
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else if (initialPlayerCount > 5)
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{
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addSection(spawn8.GetComponent<MapSection>());
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}
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else
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{
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if (Random.Range(0.0f, 1.0f) < 0.5f)
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{
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addSection(spawn4.GetComponent<MapSection>());
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}
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else
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{
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addSection(spawn8.GetComponent<MapSection>());
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}
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}
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widthMin = activeSections[0].widthOut - 2;
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widthMax = activeSections[0].widthOut + 2;
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difficulty = diffStart;
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switch (initialPlayerCount)
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{
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case 2:
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foreach (GameObject spawnBlock in lastSection.spawns2)
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{
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spawnBlock.GetComponent<Block>().isSpawnable = true;
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}
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break;
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case 3:
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foreach (GameObject spawnBlock in lastSection.spawns3)
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{
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spawnBlock.GetComponent<Block>().isSpawnable = true;
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}
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break;
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case 4:
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foreach (GameObject spawnBlock in lastSection.spawns4)
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{
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spawnBlock.GetComponent<Block>().isSpawnable = true;
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}
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break;
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case 5:
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foreach (GameObject spawnBlock in lastSection.spawns5)
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{
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spawnBlock.GetComponent<Block>().isSpawnable = true;
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}
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break;
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case 6:
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foreach (GameObject spawnBlock in lastSection.spawns6)
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{
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spawnBlock.GetComponent<Block>().isSpawnable = true;
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}
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break;
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case 7:
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foreach (GameObject spawnBlock in lastSection.spawns7)
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{
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spawnBlock.GetComponent<Block>().isSpawnable = true;
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}
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break;
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case 8:
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foreach (GameObject spawnBlock in lastSection.spawns8)
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{
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spawnBlock.GetComponent<Block>().isSpawnable = true;
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}
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break;
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default:
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foreach (GameObject spawnBlock in lastSection.spawns1)
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{
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spawnBlock.GetComponent<Block>().isSpawnable = true;
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}
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break;
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}
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checkForward();
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}
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void chooseNextSection()
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{
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//First, we determine which sections are valid
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List<MapSection> validSections = new List<MapSection>();
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updateCriteria(); //We update the section selection criteria for the current gamestate
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int count = -1;
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foreach (MapSection section in sections)
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{
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count++;
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if (section == null)
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{
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continue;
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}
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if (section.weight > 0 && checkSegments(section))
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{
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//If a segment is a valid continuation of the current most-recent segment, add it to the list
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//Sections with higher weights get more entries => higher chance of being picked
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for (int i = 0; i < section.weight; i++)
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{
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validSections.Add(section);
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}
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}
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}
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//Having generated our list, we choose a random segment from it
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MapSection nextSection = validSections[(int)Random.Range(0.0f, (float)validSections.Count)];
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addSection(nextSection);
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}
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void addSection(MapSection section)
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{
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//Instantiate new section at x = endX
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Vector3 pos = new Vector3(endX, 0.0f, 0.0f);
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GameObject newSection = (GameObject)Instantiate(section.gameObject, pos, Quaternion.identity);
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MapSection newSectionScript = newSection.GetComponent<MapSection>();
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newSectionScript.InitSection(activeSections.Count);
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newSection.name = newSectionScript.name;
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activeSections.Add(newSectionScript);
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lastSection = newSectionScript;
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endX += newSectionScript.length;
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totalSections++;
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}
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bool checkSegments(MapSection second)
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{
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return checkSegments(this.lastSection, second);
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}
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bool checkSegments(MapSection first, MapSection second)
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{
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int connections = 0;
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//No more than one link section in a row
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if (first.length == 1 && second.length == 1)
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{
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return false;
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}
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if (second.difficultyMax < difficulty || second.difficultyMin > difficulty) //Check that we're in the right difficulty range for this section
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{
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return false;
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}
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if (second.widthIn < widthMin || second.widthIn > widthMax) //And that it's in the right width range
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{
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return false;
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}
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foreach (GameObject exit in first.exits)
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{
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foreach (GameObject entry in second.entrances)
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{
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if (checkConnection(exit, entry))
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{
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connections++;
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}
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}
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}
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return (connections >= minConns);
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}
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bool checkConnection(GameObject exit, GameObject entry)
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{
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//If the squares being checked don't line up, the connection is invalid
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if (exit.transform.localPosition.z != entry.transform.localPosition.z)
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{
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return false;
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}
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//If both components require jumping (pits or water), the connection is invalid
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//It's technically possible to cross two water blocks, but we don't count that
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if (requiresJump(exit) && requiresJump(entry))
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{
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return false;
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}
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//Since we currently don't let people jump over walls, if either block is a wall, the connection is invalid
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if (isWall(exit) || isWall(entry))
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{
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return false;
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}
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//If we've passed all these tests, the connection is valid!
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return true;
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}
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bool requiresJump(GameObject block)
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{
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if (block.GetComponent<Block>() == null) //The object must be a pit trap
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{
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return true;
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}
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return block.GetComponent<Block>().isWater; //If it's not a pit, then whether it requires jumping depends on whether it's water or not
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}
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bool isWall(GameObject block)
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{
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if (block.GetComponent<Block>() == null)
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{
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return true;
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}
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return !(block.GetComponent<Block>().is_Walkable);
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}
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//Check whether it's time to extend the track forward
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void checkForward()
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{
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//We check if the end of the last section of track is in sight
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Vector3 trackEnd = new Vector3(endX, 0.0f); //Get the middle of the end of the last track section
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//If it is, then we add a new section
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if (checkView(trackEnd))
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{
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chooseNextSection();
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checkForward();
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}
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}
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//Check whether it's time to delete the oldest section of active track
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void checkBack()
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{
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//We check if the end of the first section of track is still in sight
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Vector3 firstSectionEnd = new Vector3(startX + activeSections[0].length, 0.0f); //Get the middle of the end of the first track section
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//If it's not, then we remove it
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if (!(checkView(firstSectionEnd)))
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{
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spawn.GetComponent<blockSpawn>().updatePositions((int)startX + activeSections[0].length);
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startX += activeSections[0].length;
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spawn.GetComponent<blockSpawn>().updatePositions((int)startX);
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activeSections[0].destroySection();
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activeSections.RemoveAt(0);
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}
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}
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//Check whether a point is in sight or not
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bool checkView(Vector3 point)
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{
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Vector3 screenPoint = Camera.main.WorldToViewportPoint(point); //Map it into viewport space
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//The camera's field of view is represented by 0 > (x, y) < 1, with z being the distance from the camera
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return (screenPoint.z > 0 && screenPoint.x > 0 && screenPoint.x < 1 && screenPoint.y > 0 && screenPoint.y < 1);
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}
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//Checks in both directions for sections needing to be added or removed
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public void checkTrack()
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{
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checkForward();
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checkBack();
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}
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//Updates minimum and maximum difficulty, width, etc, based on current gamestate
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public void updateCriteria()
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{
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//Start with base values
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difficulty = diffStart;
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//By default, we can add a section 1 tile wider or narrower on either side than the last section
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widthMin = lastSection.widthOut - 2;
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widthMax = lastSection.widthOut + 2;
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/* Calculate min & max difficulties & width modifications
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* We recalculate from scratch each time (that is,
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* each time a section is added) so as to avoid having
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* to track which one-off increase has been applied
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* and which hasn't
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*/
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//As the number of players shrinks, we ramp up the difficulty and contract the track
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if (initialPlayerCount > 0)
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{
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if (clients.ConnectedClients.Count <= (float)(0.5f * initialPlayerCount))
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{
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difficulty++;
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widthMin -= 2;
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widthMax -= 2;
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}
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if (clients.ConnectedClients.Count <= (float)(0.33f * initialPlayerCount))
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{
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difficulty += 2;
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widthMin -= 2;
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widthMax -= 2;
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}
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}
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//Ramp up the difficulty as the track extends
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difficulty += ((int)endX - (int)startX) / 7;
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//Apply caps
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if (difficulty > diffCap)
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{
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difficulty = diffCap;
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}
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if (widthMin < widthMinMin)
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{
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widthMin = widthMinMin;
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}
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if (widthMax < widthMaxMin)
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{
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widthMax = widthMaxMin;
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}
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}
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// Update is called once per frame
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void Update()
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{
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checkTrack();
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}
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}
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