//called to update AI unit trigger status whenever a player unit moved to a new tile
public static void UpdateHostileUnitTriggerStatus(Unit unit){
if(!instance.hasAIInGame) return;
List<Unit> unitList=GetAllHostileUnit(unit.factionID);
for(int i=0; i<unitList.Count; i++){
if(GridManager.GetDistance(unit.tile, unitList[i].tile)<=unitList[i].GetSight()){
unitList[i].trigger=true;
}
}
}
//used to check if a particular tile is visible to a particular unit
public static bool IsTileVisibleToUnit(Tile tile, Unit unit)
{
if (GridManager.GetDistance(tile, unit.tile) <= unit.GetSight())
{
if (InLOS(tile, unit.tile))
{
return(true);
}
}
return(false);
}
public static void SetupHostileInRangeforTile(Unit unit, List<Tile> tileList){
List<Unit> allUnitList=FactionManager.GetAllUnit();
List<Unit> allHostileUnitList=new List<Unit>();
for(int i=0; i<allUnitList.Count; i++){
if(allUnitList[i].factionID!=unit.factionID) allHostileUnitList.Add(allUnitList[i]);
}
List<Unit> allFriendlyUnitList=new List<Unit>();
if(GameControl.EnableFogOfWar()) allFriendlyUnitList=FactionManager.GetAllUnitsOfFaction(unit.factionID);
int range=unit.GetAttackRange();
int rangeMin=unit.GetAttackRangeMin();
int sight=unit.GetSight();
for(int i=0; i<tileList.Count; i++){
Tile srcTile=tileList[i];
List<Tile> hostileInRangeList=new List<Tile>();
for(int j=0; j<allHostileUnitList.Count; j++){
Tile targetTile=allHostileUnitList[j].tile;
if(GridManager.GetDistance(srcTile, targetTile)>range) continue;
if(GridManager.GetDistance(srcTile, targetTile)<rangeMin) continue;
if(!GameControl.EnableFogOfWar() && !GameControl.AttackThroughObstacle()){
if(!FogOfWar.InLOS(srcTile, targetTile, 0)) continue;
}
bool inSight=GameControl.EnableFogOfWar() ? false : true;
if(GameControl.EnableFogOfWar()){
if(FogOfWar.InLOS(srcTile, targetTile) && GridManager.GetDistance(srcTile, targetTile)<=sight){
inSight=true;
}
else if(!unit.requireDirectLOSToAttack){
for(int n=0; n<allFriendlyUnitList.Count; n++){
if(allFriendlyUnitList[n]==unit) continue;
if(GridManager.GetDistance(allFriendlyUnitList[n].tile, targetTile)>allFriendlyUnitList[n].GetSight()) continue;
if(FogOfWar.InLOS(allFriendlyUnitList[n].tile, targetTile)){
inSight=true;
break;
}
}
}
}
if(inSight) hostileInRangeList.Add(targetTile);
}
tileList[i].SetHostileInRange(hostileInRangeList);
}
}
//used to check if AI faction can see a given tile
public static bool IsTileVisibleToFaction(Tile tile, int factionID)
{
List <Unit> unitList = FactionManager.GetAllUnitsOfFaction(factionID);
for (int i = 0; i < unitList.Count; i++)
{
if (GridManager.GetDistance(tile, unitList[i].tile) <= unitList[i].GetSight()) //return true;
{
if (InLOS(tile, unitList[i].tile))
{
return(true);
}
}
}
return(false);
}
//check a tile visiblility to player's faction
public static bool CheckTileVisibility(Tile tile)
{
List <Unit> unitList = FactionManager.GetAllPlayerUnits();
for (int i = 0; i < unitList.Count; i++)
{
if (GridManager.GetDistance(tile, unitList[i].tile) <= unitList[i].GetSight()) //return true;
//if(InLOS(tile, unitList[i].tile, true)) return true; //for showing LOS cast
{
if (InLOS(tile, unitList[i].tile))
{
return(true);
}
}
}
return(false);
}
private Tile AnalyseCoverSystem(Unit unit, List <Tile> walkableTilesInRange, List <Unit> allHostileInSight)
{
List <Tile> walkableTilesInRangeAlt = new List <Tile>(); //for cover system, secondary tiles with less cover
List <Tile> halfCoveredList = new List <Tile>(); //a list for all the tiles with half Cover
List <Tile> fullCoveredList = new List <Tile>(); //a list for all the tiles with full Cover
if (allHostileInSight.Count == 0)
{
fullCoveredList = walkableTilesInRange;
}
else //if there are hostile in sight
//loop through all the walkable, record their score based on
{
for (int i = 0; i < walkableTilesInRange.Count; i++)
{
Tile tile = walkableTilesInRange[i];
tile.hostileCount = 0;
tile.coverScore = 0;
//iterate through all hostile, add the count, and cover type to the tile, this will then be used in tile.GetCoverRating() when this loop is complete
for (int n = 0; n < allHostileInSight.Count; n++)
{
// if the hostile is out of range, ignore it
int hostileRange = allHostileInSight[n].GetMoveRange() + allHostileInSight[n].GetAttackRange();
if (GridManager.GetDistance(allHostileInSight[n].tile, tile) > hostileRange)
{
continue;
}
tile.hostileCount += 1;
CoverSystem._CoverType coverType = CoverSystem.GetCoverType(allHostileInSight[n].tile, walkableTilesInRange[i]);
if (coverType == CoverSystem._CoverType.Half)
{
tile.coverScore += 1;
}
else if (coverType == CoverSystem._CoverType.Full)
{
tile.coverScore += 2;
}
}
//get cover rating for the tile
//if score is >=2, the tile has full cover from all hostile, so add it to fullCoveredList
//if score is >=1 && <2, the tile has half cover from all hostile, so add it to halfCoveredList
//if anything <1, the tile is exposed to hostile in some manner
if (tile.GetCoverRating() >= 2)
{
fullCoveredList.Add(tile);
}
else if (tile.GetCoverRating() >= 1)
{
halfCoveredList.Add(tile);
}
}
}
//if either of the CoveredList is not empty, replace walkableTilesInRange with that since there's no need to consider to move into tiles without cover
if (fullCoveredList.Count != 0)
{
walkableTilesInRange = fullCoveredList;
walkableTilesInRangeAlt = halfCoveredList;
}
else if (halfCoveredList.Count != 0)
{
walkableTilesInRange = halfCoveredList;
}
//if there are hostile
if (allHostileInSight.Count > 0)
{
//fill up the walkableTilesInRange hostile list
//then filter thru walkableTilesInRange, those that have a hostile in range will be add to a tilesWithHostileInRange
List <Tile> tilesWithHostileInRange = new List <Tile>();
GridManager.SetupHostileInRangeforTile(unit, walkableTilesInRange);
for (int i = 0; i < walkableTilesInRange.Count; i++)
{
if (walkableTilesInRange[i].GetHostileInRange().Count > 0)
{
tilesWithHostileInRange.Add(walkableTilesInRange[i]);
}
}
if (tilesWithHostileInRange.Count == 0)
{
GridManager.SetupHostileInRangeforTile(unit, walkableTilesInRangeAlt);
for (int i = 0; i < walkableTilesInRangeAlt.Count; i++)
{
if (walkableTilesInRangeAlt[i].GetHostileInRange().Count > 0)
{
tilesWithHostileInRange.Add(walkableTilesInRangeAlt[i]);
}
}
}
//if the tilesWithHostileInRange is not empty after the process, means there's tiles which the unit can move into and attack
//return one of those in the tilesWithHostileInRange so the unit can attack
if (tilesWithHostileInRange.Count > 0)
{
//if the unit current tile is one of those tiles with hostile, just stay put and attack
if (tilesWithHostileInRange.Contains(unit.tile))
{
//randomize it a bit so the unit do move around but not stay in place all the time
if (Random.Range(0f, 1f) > 0.25f)
{
return(unit.tile);
}
}
return(tilesWithHostileInRange[Random.Range(0, tilesWithHostileInRange.Count)]);
}
}
return(null);
}
//analyse the grid to know where the unit should move to
private Tile Analyse(Unit unit, _AIMode activeMode)
{
//get all wakable tiles in range first
List <Tile> walkableTilesInRange = GridManager.GetTilesWithinDistance(unit.tile, unit.GetEffectiveMoveRange(), true);
walkableTilesInRange.Add(unit.tile);
//get all visible hostile
List <Unit> allHostileInSight = FactionManager.GetAllHostileUnit(unit.factionID);
if (GameControl.EnableFogOfWar())
{
for (int i = 0; i < allHostileInSight.Count; i++)
{
if (!FogOfWar.IsTileVisibleToFaction(allHostileInSight[i].tile, unit.factionID))
{
allHostileInSight.RemoveAt(i); i -= 1;
}
}
}
//if cover system is in used
if (GameControl.EnableCover())
{
Tile tile = AnalyseCoverSystem(unit, walkableTilesInRange, allHostileInSight);
if (tile != null)
{
return(tile);
}
}
//if there are hostile
if (allHostileInSight.Count > 0)
{
//fill up the walkableTilesInRange hostile list
//then filter thru walkableTilesInRange, those that have a hostile in range will be add to a tilesWithHostileInRange
List <Tile> tilesWithHostileInRange = new List <Tile>();
GridManager.SetupHostileInRangeforTile(unit, walkableTilesInRange);
for (int i = 0; i < walkableTilesInRange.Count; i++)
{
if (walkableTilesInRange[i].GetHostileInRange().Count > 0)
{
tilesWithHostileInRange.Add(walkableTilesInRange[i]);
}
}
//if the tilesWithHostileInRange is not empty after the process, means there's tiles which the unit can move into and attack
//return one of those in the tilesWithHostileInRange so the unit can attack
if (tilesWithHostileInRange.Count > 0)
{
//if the unit current tile is one of those tiles with hostile, just stay put and attack
if (tilesWithHostileInRange.Contains(unit.tile))
{
//randomize it a bit so the unit do move around but not stay in place all the time
if (Random.Range(0f, 1f) > 0.25f)
{
return(unit.tile);
}
}
return(tilesWithHostileInRange[Random.Range(0, tilesWithHostileInRange.Count)]);
}
}
//if there's not potential target at all, check if the unit has any previous attacker
//if there are, go after the last attacker
if (unit.lastAttacker != null)
{
return(unit.lastAttacker.tile);
}
//for aggresive mode with FogOfWar disabled, try move towards the nearest unit
if (activeMode == _AIMode.Aggressive && Random.Range(0f, 1f) > 0.25f)
{
List <Unit> allHostile = FactionManager.GetAllHostileUnit(unit.factionID);
float nearest = Mathf.Infinity; int nearestIndex = 0;
for (int i = 0; i < allHostile.Count; i++)
{
float dist = GridManager.GetDistance(allHostile[i].tile, unit.tile);
if (dist < nearest)
{
nearest = dist;
nearestIndex = i;
}
}
return(allHostile[nearestIndex].tile);
}
//if there's really no hostile to go after, then just move randomly in one of the walkable
int rand = Random.Range(0, walkableTilesInRange.Count);
//clear in hostileInRange list for all moveable tile so, just in case the list is not empty (hostileInRange dont clear after each move)
//so the unit dont try to attack anything when it moves into the targetTile
walkableTilesInRange[rand].SetHostileInRange(new List <Tile>());
return(walkableTilesInRange[rand]);
}
//~ public void ActivateTargetModeUnit(Tile tile, int range, int AOE, bool normalAttack, bool requireDirectLOS, _TargetType type, TargetModeCallBack sCallBack, TargetModeCallBack eCallBack){
public void ActivateTargetModeUnit(Tile tile, UnitAbility ability, int abIndex, TargetModeCallBack sCallBack, ExitTargetModeCallBack eCallBack)
{
TBTK.OnUnitABTargetMode(abIndex);
_ActivateTargetMode(abIndex, ability.GetAOERange(), ability.targetType, sCallBack, eCallBack);
if (!ability.AttackInLine())
{
if (!ability.normalAttack)
{
if (targetModeType == _TargetType.EmptyTile)
{
targetModeTileList = GridManager.GetTilesWithinDistance(tile, ability.GetRange(), true);
}
else
{
targetModeTileList = GridManager.GetTilesWithinDistance(tile, ability.GetRange());
}
}
else
{
targetModeTileList = new List <Tile>();
List <Tile> tilesInRangeList = GridManager.GetTilesWithinDistance(tile, ability.GetRange());
int sight = tile.unit.GetSight();
List <Unit> allFriendlyUnitList = FactionManager.GetAllUnitsOfFaction(tile.unit.factionID);
for (int i = 0; i < tilesInRangeList.Count; i++)
{
Tile targetTile = tilesInRangeList[i];
if (!GameControl.EnableFogOfWar() && !GameControl.AttackThroughObstacle())
{
if (!FogOfWar.InLOS(tile, targetTile, 0))
{
continue;
}
}
bool inSight = GameControl.EnableFogOfWar() ? false : true;
if (GameControl.EnableFogOfWar())
{
if (FogOfWar.InLOS(tile, targetTile) && GridManager.GetDistance(tile, targetTile) <= sight)
{
inSight = true;
}
else if (!ability.requireDirectLOS)
{
for (int n = 0; n < allFriendlyUnitList.Count; n++)
{
if (allFriendlyUnitList[n] == tile.unit)
{
continue;
}
if (GridManager.GetDistance(allFriendlyUnitList[n].tile, targetTile) > allFriendlyUnitList[n].GetSight())
{
continue;
}
if (FogOfWar.InLOS(allFriendlyUnitList[n].tile, targetTile))
{
inSight = true;
break;
}
}
}
}
if (inSight)
{
targetModeTileList.Add(targetTile);
}
}
}
}
else
{
/*
* List<Tile> neighbourList=tile.GetNeighbourList();
* for(int i=0; i<neighbourList.Count; i++){
* bool walkableOnly=(ability.type==UnitAbility._AbilityType.ChargeAttack);
* List<Tile> tileList=GridManager.GetTilesInALine(tile, neighbourList[i], ability.GetRange(), walkableOnly);
*
* if(tileList.Count>0){
* if(targetModeType!=_TargetType.EmptyTile) targetModeTileList.Add(tileList[tileList.Count-1]);
* else if (tileList[tileList.Count-1].unit==null) targetModeTileList.Add(tileList[tileList.Count-1]);
* }
* }
*/
}
//for(int i=0; i<targetModeTileList.Count; i++) targetModeTileList[i].SetState(_TileState.Range);
OverlayManager.ShowAbilityRangeIndicator(targetModeTileList);
}