public Snake(Game game, double x, double y)
: base(game, x, y)
{
bodies = new SnakeBody[NUM_BODIES];
for (int i = 0; i < NUM_BODIES; i++)
{
bodies[i] = new SnakeBody(game, x, y, i == 0);
}
posBufX = new double[POS_BUF_LEN_SUM];
posBufY = new double[POS_BUF_LEN_SUM];
angleBuf = new int[POS_BUF_LEN_SUM];
for (int i = 0; i < POS_BUF_LEN_SUM; i++)
{
posBufX[i] = x;
posBufY[i] = y;
angleBuf[i] = 315;
}
px = x;
py = y;
vx = vy = 0;
targetX = game.Random.Next(Game.FieldWidth / 2 - 192, Game.FieldWidth / 2 + 192 + 1);
targetY = game.Random.Next(Game.FieldHeight / 4 - 64, Game.FieldHeight / 4 + 192 + 1);
angle = 315;
attackCount = game.Random.Next(90, 120);
hitPoints = 32;
damaged = false;
isDying = false;
dyingCount = 0;
}
public Snake(Game game, double x, double y)
: base(game, x, y)
{
bodies = new SnakeBody[NUM_BODIES];
for (int i = 0; i < NUM_BODIES; i++)
{
bodies[i] = new SnakeBody(game, x, y, i == 0);
}
posBufX = new double[POS_BUF_LEN_SUM];
posBufY = new double[POS_BUF_LEN_SUM];
angleBuf = new int[POS_BUF_LEN_SUM];
for (int i = 0; i < POS_BUF_LEN_SUM; i++)
{
posBufX[i] = x;
posBufY[i] = y;
angleBuf[i] = 315;
}
px = x;
py = y;
vx = vy = 0;
targetX = game.Random.Next(Game.FieldWidth / 2 - 192, Game.FieldWidth / 2 + 192 + 1);
targetY = game.Random.Next(Game.FieldHeight / 4 - 64, Game.FieldHeight / 4 + 192 + 1);
angle = 315;
attackCount = game.Random.Next(90, 120);
hitPoints = 32;
damaged = false;
isDying = false;
dyingCount = 0;
}
public override void Update()
{
damaged = false;
if (isDying)
{
if (dyingCount < POS_BUF_LEN_SUM)
{
if (dyingCount % POS_BUF_LEN == 0)
{
bodies[dyingCount / POS_BUF_LEN].Destroy();
}
dyingCount++;
}
if (dyingCount == POS_BUF_LEN_SUM)
{
int startAngle = Game.Random.Next(90);
for (int i = 0; i < 12; i++)
{
int angle = startAngle + i * 30 + Game.Random.Next(-30, 31);
double x = X + 32 * Utility.Cos(angle);
double y = Y - 32 * Utility.Sin(angle);
double speed = 0.5 + 1.5 * Game.Random.NextDouble();
Effect debris = new Debris(Game, x, y, 128, 128, 128, speed, angle);
Game.AddEffect(debris);
}
Effect effect1 = new BigExplosionEffect(Game, X + 16, Y, Game.Random.Next(360), 255, 255, 255);
Effect effect2 = new BigExplosionEffect(Game, X, Y - 16, Game.Random.Next(360), 255, 255, 255);
Effect effect3 = new BigExplosionEffect(Game, X - 16, Y, Game.Random.Next(360), 255, 255, 255);
Effect effect4 = new BigExplosionEffect(Game, X, Y + 16, Game.Random.Next(360), 255, 255, 255);
Game.AddEffect(effect1);
Game.AddEffect(effect2);
Game.AddEffect(effect3);
Game.AddEffect(effect4);
Game.PlaySound(Sound.Explosion);
}
return;
}
px = X;
py = Y;
for (int i = 0; i < POS_BUF_LEN_SUM - 1; i++)
{
posBufX[i] = posBufX[i + 1];
posBufY[i] = posBufY[i + 1];
angleBuf[i] = angleBuf[i + 1];
}
posBufX[POS_BUF_LEN_SUM - 1] = X;
posBufY[POS_BUF_LEN_SUM - 1] = Y;
angleBuf[POS_BUF_LEN_SUM - 1] = this.angle;
if (Game.Ticks % 30 == 0)
{
if (Game.Random.Next(0, 8) != 0)
{
targetX = Game.Random.Next(Game.FieldWidth / 2 - 192, Game.FieldWidth / 2 + 192 + 1);
targetY = Game.Random.Next(Game.FieldHeight / 4 - 64, Game.FieldHeight / 4 + 192 + 1);
}
else
{
targetX = (int)Math.Round(Game.Player.X);
targetY = (int)Math.Round(Game.Player.Y);
}
}
if (Math.Abs(targetX - X) < 32 && Math.Abs(targetY - Y) < 32)
{
targetX = Game.Random.Next(Game.FieldWidth / 2 - 192, Game.FieldWidth / 2 + 192 + 1);
targetY = Game.Random.Next(Game.FieldHeight / 4 - 64, Game.FieldHeight / 4 + 192 + 1);
}
if (X < targetX)
{
vx += 1;
}
else if (targetX < X)
{
vx -= 1;
}
if (Math.Abs(vx) > MAX_SPEED)
{
vx = Math.Sign(vx) * MAX_SPEED;
}
if (Y < targetY)
{
vy += 1;
}
else if (targetY < Y)
{
vy -= 1;
}
if (Math.Abs(vy) > MAX_SPEED)
{
vy = Math.Sign(vy) * MAX_SPEED;
}
X += vx;
Y += vy;
for (int i = 0; i < NUM_BODIES; i++)
{
int index = POS_BUF_LEN * i;
bodies[i].X = posBufX[index];
bodies[i].Y = posBufY[index];
bodies[i].Angle = angleBuf[index];
}
{
int deg = Utility.NormalizeDeg(Utility.Atan2(py - Y, X - px) - angle);
if (deg == -180)
{
angle += Game.Random.Next(2) == 0 ? 1 : -1;
}
else if (Math.Abs(deg) < 16)
{
angle = Utility.Atan2(py - Y, X - px);
}
else
{
if (deg < 0)
{
angle -= 16;
}
else if (deg > 0)
{
angle += 16;
}
}
}
if (attackCount > 0)
{
attackCount--;
if (!Game.Player.IsDead)
{
if (attackCount / 2 < NUM_BODIES)
{
if (attackCount % 2 == 0)
{
SnakeBody body = bodies[attackCount / 2];
int a = Utility.Atan2(body.Y - Game.Player.Y, Game.Player.X - body.X) + Game.Random.Next(-45, 45 + 1);
Bullet bullet = new SnakeBullet(Game, body.X, body.Y, Game.Random.Next(4, 8 + 1), a);
Game.AddEnemyBullet(bullet);
}
}
}
}
else
{
attackCount = Game.Random.Next(60, 90);
}
}
