public Tuple<int, int> moveAway(RLMonster monster, RLHero hero)
{
//work out differences to find the axis with the greatest difference. We'll move along that axis.
int x = monster.locationX, y = monster.locationY;
int xDiff = monster.locationX - hero.locationX;
int yDiff = monster.locationY - hero.locationY;
if (xDiff < 0)
{
xDiff = xDiff * -1;
}
if (yDiff < 0)
{
yDiff = yDiff * -1;
}
if (xDiff >= yDiff)
{
if (hero.locationX > monster.locationX)
{
x--;
}
else
{
x++;
}
}
else
{
if (hero.locationY > monster.locationY)
{
y--;
}
else
{
y++;
}
}
return new Tuple<int, int>(x, y);
}
private void PlaceMonster(RLMap map, RLMonster monster)
{
Tuple<int, int> destination = null;
//if monster can see hero, move according to monster behaviour
if (aiService.CanSeeEachOther(monster, hero, map))
{
switch (monster.monsterBehaviour)
{
case RLMonster.MonsterBehaviour.aggressive:
destination = aiService.moveTowards(monster, hero);
break;
case RLMonster.MonsterBehaviour.passive:
destination = aiService.moveRandom(monster);
break;
case RLMonster.MonsterBehaviour.cowardly:
destination = aiService.moveAway(monster, hero);
break;
default:
break;
}
}
else //otherwise, move at random
{
destination = aiService.moveRandom(monster);
}
if (destination != null)
{
if (destination.Item1 == hero.locationX && destination.Item2 == hero.locationY)
{
//redraw in the same location
renderer.DrawAgent(map, monster, monster.locationX, monster.locationY);
//attack hero
var attackResults = hero.attackedBy(monster, dice);
foreach (var attackMessage in attackResults)
{
messages.Push(new Tuple<ConsoleColor, string>(ConsoleColor.Red, attackMessage));
}
}
else if (map.isLocationPassable(destination.Item1, destination.Item2))
{
renderer.DrawAgent(map, monster, destination.Item1, destination.Item2);
monster.locationX = destination.Item1;
monster.locationY = destination.Item2;
}
else
{
//redraw in the same location
renderer.DrawAgent(map, monster, monster.locationX, monster.locationY);
}
}
}