//compiles the path
public List<Coord> GetPath(Coord startPos, Coord endPos, ref Map m) {
//round down coords to lock to tiles
int startX = (int)(startPos.X);
int startY = (int)(startPos.Y);
int endX = (int)(endPos.X);
int endY = (int)(endPos.Y);
//create nodemap
Node[,] nodeMap = new Node[m.ObjectMap.GetLength(0), m.ObjectMap.GetLength(1)];
for (int x = 0; x < nodeMap.GetLength(0); x++) {
for (int y = 0; y < nodeMap.GetLength(1); y++) {
if (m.ObjectMap[x, y] != null) {
nodeMap[x, y] = new Node(new Coord(x, y), m.ObjectMap[x, y].collision, new Coord(endX, endY), null);
} else {
nodeMap[x, y] = new Node(new Coord(x, y), false, new Coord(endX, endY), null);
}
}
}
bool success = Search(nodeMap[startX, startY], new Coord(startX, startY), new Coord(endX, endY), ref nodeMap);
if (success) {
List<Coord> path = new List<Coord>();
Node n = nodeMap[endX, endY];
while (n.parent != null) {
path.Add(new Coord(n.location.X + (random.Next(-3, 3) * .1), n.location.Y + (random.Next(-3, 3) * .1)));
n = n.parent;
}
path.Reverse();
return path;
} else {
//return empty list if search is not successful
return new List<Coord>();
}
}
//returns true if the entity should shoot
public bool UpdateAI(ref Map m, double elapsedTime, Coord player) {
//define the triangle within which the character scans
List<Coord> triangle = new List<Coord>();
triangle.Add(loc);
triangle.Add(new Coord((loc.X + Math.Cos(direction + scanArc) * visionRange), (loc.Y + Math.Sin(direction + scanArc) * visionRange)));
triangle.Add(new Coord((loc.X + Math.Cos(direction - scanArc) * visionRange), (loc.Y + Math.Sin(direction - scanArc) * visionRange)));
//update timer
scanTimer += elapsedTime;
if (moveQueue.Count > 0) {
//Find the shortest way to turn to the direction it's headed in
if (heading - direction <= Math.PI && heading - direction > 0) {
Rotate(10 * turnSpeed);
if (direction > heading) {
direction = heading;
}
} else if (direction - heading >= -Math.PI && heading - direction <= 0) {
Rotate(10 * -turnSpeed);
if (direction < heading) {
direction = heading;
}
}
if (Move(elapsedTime, moveQueue.Peek())) {
Coord temp = new Coord(moveQueue.Peek().X - loc.X, moveQueue.Peek().Y - loc.Y);
heading = Math.Atan2(temp.Y, temp.X);
moveQueue.Dequeue();
}
} else {
//if the player is not yet found, pan to look for him and listen for his shots
if (!aggro) {
if (playerLoc != null) {
List<Coord> path = GetPath(loc, playerLoc, ref m);
foreach(Coord c in path) {
moveQueue.Enqueue(c);
}
playerLoc = null;
}
//pan around looking for player
if (scanTimer < scanTime / 4) {
Rotate(2 * turnSpeed);
} else if (scanTimer < scanTime * 3 / 4) {
Rotate(-2 * turnSpeed);
} else if (scanTimer < scanTime) {
Rotate(2 * turnSpeed);
} else {
scanTimer = 0;
}
//Pathfinding with sound
if (m.sounds.Count > 0) {
Coord start = m.sounds[m.sounds.Count - 1];
double dist = Math.Sqrt(Math.Pow(start.X - loc.X, 2) + Math.Pow(start.Y - loc.Y, 2));
if (dist < scanRange) {
//find a path to the sound and put it on move queue
moveQueue.Clear();
List<Coord> path = GetPath(loc, m.sounds[m.sounds.Count - 1], ref m);
foreach (Coord point in path) {
moveQueue.Enqueue(point);
}
}
}
} else {
playerLoc = player;
direction = Math.Atan2(player.Y - loc.Y, player.X - loc.X);
}
}
if (IsPointInPolygon(triangle, player)) {
aggro = true;
if (weapon.CheckFireRate(elapsedTime)) {
return true;
} else {
return false;
}
} else {
aggro = false;
return false;
}
}
//Creates a single riot enemy
public static void CreateRiotEnemy(ref List<Enemy> enemies, ContentManager Content, Camera c, Map m, double x, double y, float dir) {
enemies.Add(new RiotEnemy(Content, x, y, "NoTexture", PlayerPos.CalcRectangle(c.camPos.X, c.camPos.Y, x, y, m.TileSize, c.xOffset, c.yOffset), dir));
}
//Shoots the player's current gun
public static void ShootWeapon(Character player, MouseState mState, MouseState oldMState, List<Projectile> projectiles, bool temp, Camera c, ContentManager Content, Queue<SoundEffect> curSounds, Dictionary<string, SoundEffect> soundEffects, ref Map m) {
if (!player.IsMeleeing && !(SkillSystem.skills[2].Active && player.IsSprinting)) {
if (player.Weapon.Auto) {
if (oldMState.LeftButton == ButtonState.Pressed) {
if (temp) {
SoundEffect TempSound;
//enqueue gunshot sound
//only shoot if not a null projectile
Projectile p = player.Weapon.Shoot(Content, player, c, m.TileSize, player);
if (p != null) {
//create new projectile
projectiles.Add(p);
//load and enqueue sound
soundEffects.TryGetValue("gunshot", out TempSound);
curSounds.Enqueue(player.Weapon.ShootSound);
m.sounds.Add(player.Loc);
//add the player's sound to the map's sound queue for AI to detect
m.sounds.Add(player.Loc);
c.screenShake = true;
} else {
player.Weapon.Shoot(Content, player, c, m.TileSize, player);
//enqueue gun click sound if empty
soundEffects.TryGetValue("emptyClick", out TempSound);
curSounds.Enqueue(TempSound);
}
}
}
} else {
if (oldMState.LeftButton == ButtonState.Pressed && mState.LeftButton != ButtonState.Pressed) {
if (temp) {
if (player.Weapon.Name.Equals("Shotgun")) {
SoundEffect TempSound;
//enqueue gunshot sound
//only shoot if not a null projectile
Projectile p = player.Weapon.Shoot(Content, player, c, m.TileSize, player);
if (p != null) {
player.Weapon.Ammo[0] += 2;
Projectile p2 = player.Weapon.Shoot(Content, player, c, m.TileSize, player);
Projectile p3 = player.Weapon.Shoot(Content, player, c, m.TileSize, player);
projectiles.Add(p);
projectiles.Add(p2);
projectiles.Add(p3);
soundEffects.TryGetValue("shotgunSound.wav", out TempSound);
curSounds.Enqueue(player.Weapon.ShootSound);
m.sounds.Add(player.Loc);
c.screenShake = true;
} else {
player.Weapon.Shoot(Content, player, c, m.TileSize, player);
//enqueue gun click sound if empty
soundEffects.TryGetValue("emptyClick", out TempSound);
curSounds.Enqueue(TempSound);
}
} else {
SoundEffect TempSound;
//enqueue gunshot sound
//only shoot if not a null projectile
Projectile p = player.Weapon.Shoot(Content, player, c, m.TileSize, player);
if (p != null) {
projectiles.Add(p);
soundEffects.TryGetValue("gunshot", out TempSound);
curSounds.Enqueue(player.Weapon.ShootSound);
m.sounds.Add(player.Loc);
c.screenShake = true;
} else {
player.Weapon.Shoot(Content, player, c, m.TileSize, player);
//enqueue gun click sound if empty
soundEffects.TryGetValue("emptyClick", out TempSound);
curSounds.Enqueue(TempSound);
}
}
}
}
}
}
}
//Creates a single normal enemy
public static void CreateNormalEnemy(ref List<Enemy> enemies, ContentManager Content, Camera c, Map m, double x, double y, float dir) {
Enemy e = new Enemy(Content, x, y, "NoTexture", PlayerPos.CalcRectangle(c.camPos.X, c.camPos.Y, x, y, m.TileSize, c.xOffset, c.yOffset), dir);
e.EntTexture = Content.Load<Texture2D>("Enemy" + rng.Next(1, 4));
enemies.Add(e);
}