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