//Updates the AI
public void Update(Player p, Vector2 screenSize)
{
int frameChecker = 0;
Vector2 vecD = new Vector2((p.BoundingRect.Center.X - BoundingRect.X), (p.BoundingRect.Center.Y - BoundingRect.Y));
vecD.Normalize();
rotation = (float)(Math.Atan2(vecD.Y, vecD.X) + Math.PI / 2);
//If the ai is not spawning
if (!isSpawning)
{
//Updates the ai based on their ai type
switch (type)
{
#region Square
case Type.Square:
//Update for a square
frameChecker = 2;
//Determines velocity
velocity.Normalize();
velocity += vecD;
velocity.Normalize();
velocity *= Speed;
boundingRect.X += (int)velocity.X;
boundingRect.Y += (int)velocity.Y;
break;
#endregion
#region Circle
case Type.Circle:
//Update for a circle
frameChecker = 4;
//Creates centripetal motion
velocity.Normalize();
Vector2 centripalVector = new Vector2(-velocity.Y, velocity.X) / 10;
velocity += centripalVector;
velocity.Normalize();
velocity *= speed;
//Adds the centripetal motion with the direction vector
boundingRect.X += (int)(velocity.X);
boundingRect.Y += (int)(velocity.Y);
break;
#endregion
#region Octagon
case Type.Octagon:
//Update for an octagon
frameChecker = 5;
if (velocity.X == 0 && velocity.Y == 0)
{
velocity = vecD * speed;
}
//Bounces the ai if they hit the side of the screen
if (BoundingRect.X + LENGTH > screenSize.X)
{
velocity = new Vector2(-velocity.X, velocity.Y);
}
else if (BoundingRect.X - LENGTH < 0)
{
velocity = new Vector2(-velocity.X, velocity.Y);
}
else if (BoundingRect.Y + LENGTH > screenSize.Y)
{
velocity = new Vector2(velocity.X, -velocity.Y);
}
else if (BoundingRect.Y - LENGTH < 100)
{
velocity = new Vector2(velocity.X, -velocity.Y);
boundingRect.Y += 2;
}
rotation = (float)(Math.Atan2(velocity.Y, velocity.X) + Math.PI / 2);
boundingRect.X += (int)velocity.X;
boundingRect.Y += (int)velocity.Y;
break;
#endregion
#region Triangle
case Type.Triangle:
frameChecker = 1;
//Determines velocity
velocity.Normalize();
velocity += vecD;
velocity.Normalize();
velocity *= Speed;
boundingRect.X += (int)velocity.X;
boundingRect.Y += (int)velocity.Y;
break;
#endregion
}
}
//Else continue spawning
else
{
switch (type)
{
case Type.Square:
frameChecker = 10;
break;
case Type.Circle:
frameChecker = 10;
break;
case Type.Triangle:
frameChecker = 10;
break;
case Type.Octagon:
frameChecker = 5;
break;
}
if (count == spawnTime)
{
FinishSpawning();
}
}
Animate(frameChecker);
}
protected override void LoadContent()
{
//Spritebatch and fonts
spriteBatch = new SpriteBatch(GraphicsDevice);
font = Content.Load<SpriteFont>("Font");
fontSmall = Content.Load<SpriteFont>("SmallFont");
#region Media Loading
//Backgrounds
imgBackgroundOne = Content.Load<Texture2D>("Backgrounds/Space3");
imgBackgroundTwo = Content.Load<Texture2D>("Backgrounds/background1");
imgQuadrant = Content.Load<Texture2D>("Backgrounds/Quadrant");
imgSpecialBar = Content.Load<Texture2D>("Backgrounds/Special Bar");
imgSpecialMeter = Content.Load<Texture2D>("Backgrounds/Special Meter");
imgMenuBar = Content.Load<Texture2D>("Backgrounds/Menu Bar");
//Player Images
imgPlayer = Content.Load<Texture2D>("Entities/Player");;
imgECircle = Content.Load<Texture2D>("Entities/Enemy Blue Circle");
imgESquare = Content.Load<Texture2D>("Entities/Enemy Pink Square");
imgETriangle = Content.Load<Texture2D>("Entities/Enemy Arrow2");
imgEOctagon = Content.Load<Texture2D>("Entities/Enemy Green Emerald2");
test = Content.Load<Texture2D>("Entities/Collision Circle");
//Effects
imgParticle = Content.Load<Texture2D>("Effects/Particle");
imgPBullet = Content.Load<Texture2D>("Effects/Bullet");
imgBomb = Content.Load<Texture2D>("Effects/Bombs");
imgPlayerLife = Content.Load<Texture2D>("Effects/Player Life");
seLaser = Content.Load<SoundEffect>("Effects/Laser");
sePop = Content.Load<SoundEffect>("Effects/Pop");
imgSpawnAnim = Content.Load<Texture2D>("Effects/Spawn Animations");
//Songs
sngHeaven = Content.Load<Microsoft.Xna.Framework.Media.Song>("Songs/EnV - Heaven");
//Particle Colors
particleColors[0, 0] = new Color(136, 5, 168); // purple
particleColors[0, 1] = new Color(189, 99, 212);
particleColors[0, 2] = new Color(88, 2, 109);
particleColors[1, 0] = new Color(8, 108, 162); //blue
particleColors[1, 1] = new Color(60, 157, 208);
particleColors[1, 2] = new Color(3, 69, 105);
particleColors[2, 0] = new Color(93, 255, 0); //green
particleColors[2, 1] = new Color(163, 240, 108);
particleColors[2, 2] = new Color(61, 146, 0);
particleColors[3, 0] = new Color(255, 199, 0); // yellow
particleColors[3, 1] = new Color(255, 213, 64);
particleColors[3, 2] = new Color(255, 224, 115);
particleColors[4, 0] = new Color(255, 13, 0); //red
particleColors[4, 1] = new Color(255, 122, 115);
particleColors[4, 2] = new Color(166, 8, 0);
#endregion
player = new Player(new Rectangle(Convert.ToInt32(optimalWidth * scale.X / 2 - imgPlayer.Width * scale.X / 2), Convert.ToInt32(optimalHeight * scale.Y / 2 - imgPlayer.Height * scale.Y / 2), (int)(imgPlayer.Width * scale.X),
(int)(imgPlayer.Height * scale.Y)), imgPlayer, 3, 4);
MediaPlayer.Volume = 0.6f;
}
//Updates the ai in the swarm and returns the id
public void Update(Player p, Vector2 screenDimensions)
{
int index = -1;
int frameC = SetVelocityAndReturnFrameCheck(p, screenDimensions);
float rotation = (float)(Math.Atan2(groupVelocity.Y, groupVelocity.X) + Math.PI / 2);
Vector2 direcV = new Vector2((p.BoundingRect.Center.X - center.X), (p.BoundingRect.Center.Y - center.Y));
direcV.Normalize();
grid.MovePoints(groupVelocity);
//Loops through every ai and
foreach (AI a in ai)
{
index++;
switch (a.Type)
{
case Type.Square:
a.Update(groupVelocity + ReturnSwarmGridVector(index, direcV), rotation, frameC);
break;
case Type.Circle:
a.Update(groupVelocity + ReturnSwarmGridVector(index, direcV), rotation, frameC);
break;
case Type.Triangle:
a.Update(groupVelocity + ReturnSwarmGridVector(index, direcV), rotation, frameC);
break;
case Type.Octagon:
a.Update(groupVelocity + ReturnSwarmGridVector(index, direcV), rotation, frameC);
break;
}
}
}
//Determines the velocity of a swarm of ai and returns the frame checker
private int SetVelocityAndReturnFrameCheck(Player p, Vector2 screenSize)
{
center.X = 0;
center.Y = 0;
//Calculates Center
for (int i = 0; i < ai.Count; i++)
{
center.X += ai[i].BoundingRect.X;
center.Y += ai[i].BoundingRect.Y;
}
center.X /= ai.Count;
center.Y /= ai.Count;
//Holds a temporary velocity used to calculate the ai velocities
Vector2 tempV;
//Determines how the velocity should be calculated and applies it
switch (ai[0].Type)
{
//Velocity for a swarm of squares, animation updates every 3 frames
case Type.Square:
tempV = new Vector2((p.BoundingRect.Center.X - center.X), (p.BoundingRect.Center.Y - center.Y));
tempV.Normalize();
groupVelocity += tempV;
groupVelocity.Normalize();
groupVelocity *= ai[0].Speed;
return 2;
//Velocity for a swarm of circles, animation updates every 5 frames
case Type.Circle:
tempV = new Vector2(-groupVelocity.Y, groupVelocity.X) / 10;
groupVelocity += tempV;
groupVelocity.Normalize();
groupVelocity *= ai[0].Speed;
return 4;
//Velocity for a swarm of triangles, animation updates every 3 frames
case Type.Triangle:
tempV = new Vector2((p.BoundingRect.Center.X - center.X), (p.BoundingRect.Center.Y - center.Y));
tempV.Normalize();
groupVelocity += tempV;
groupVelocity.Normalize();
groupVelocity *= ai[0].Speed;
return 2;
//The type was not found
default:
return -1;
}
}
//Updates all the ai within the manager
public void Update(Player p, Vector2 screenSize)
{
//Updates individual ai
foreach (AI a in loneAi)
{
a.Update(p, screenSize);
}
//Updates swarms
for(int i = 0; i < swarms.Count; i++)
{
//If there are more than two ai in the swarm, preform the update
if (swarms[i].AI.Count >= 2)
{
swarms[i].Update(p, screenSize);
}
//Otherwise disband the swarm
else
{
if (swarms[i].AI.Count == 1)
{
AddLoneAI(swarms[i].AI[0]);
}
swarms.RemoveAt(i);
i--;
}
}
}
