private void SpawnEnemy()
{
Vector2 speed = Vector2.Zero;
Vector2 position = Vector2.Zero;
// Default frame size
Point frameSize = new Point(75, 75);
// Randomly choose which side of the screen to place enemy,
// then randomly create a position along that side of the screen
// and randomly choose a speed for the enemy
switch (((Game1)Game).rnd.Next(4))
{
case 0: // LEFT to RIGHT
position = new Vector2(
-frameSize.X, ((Game1)Game).rnd.Next(0,
Game.GraphicsDevice.PresentationParameters.BackBufferHeight
- frameSize.Y));
speed = new Vector2(((Game1)Game).rnd.Next(
enemyMinSpeed,
enemyMaxSpeed), 0);
break;
case 1: // RIGHT to LEFT
position = new
Vector2(
Game.GraphicsDevice.PresentationParameters.BackBufferWidth,
((Game1)Game).rnd.Next(0,
Game.GraphicsDevice.PresentationParameters.BackBufferHeight
- frameSize.Y));
speed = new Vector2(-((Game1)Game).rnd.Next(
enemyMinSpeed, enemyMaxSpeed), 0);
break;
case 2: // BOTTOM to TOP
position = new Vector2(((Game1)Game).rnd.Next(0,
Game.GraphicsDevice.PresentationParameters.BackBufferWidth
- frameSize.X),
Game.GraphicsDevice.PresentationParameters.BackBufferHeight);
speed = new Vector2(0,
-((Game1)Game).rnd.Next(enemyMinSpeed,
enemyMaxSpeed));
break;
case 3: // TOP to BOTTOM
position = new Vector2(((Game1)Game).rnd.Next(0,
Game.GraphicsDevice.PresentationParameters.BackBufferWidth
- frameSize.X), -frameSize.Y);
speed = new Vector2(0,
((Game1)Game).rnd.Next(enemyMinSpeed,
enemyMaxSpeed));
break;
}
// Get random number between 0 and 99
int random = ((Game1)Game).rnd.Next(100);
if (random < likelihoodAutomated)
{
// Create an AutomatedSprite.
// Get new random number to determine whether to
// create a three-blade or four-blade sprite.
if (((Game1)Game).rnd.Next(2) == 0)
{
// Create a four-blade enemy
spriteList.Add(
new AutomatedSprite(
Game.Content.Load<Texture2D>(@"images\fourblades"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 8), speed, "fourbladescollision",
automatedSpritePointValue));
}
else
{
// Create a three-blade enemy
spriteList.Add(
new AutomatedSprite(
Game.Content.Load<Texture2D>(@"images\threeblades"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 8), speed, "threebladescollision",
automatedSpritePointValue));
}
}
else if (random < likelihoodAutomated +
likelihoodChasing)
{
// Create a ChasingSprite.
// Get new random number to determine whether
// to create a skull or a plus sprite.
if (((Game1)Game).rnd.Next(2) == 0)
{
// Create a skull
spriteList.Add(
new ChasingSprite(
Game.Content.Load<Texture2D>(@"images\skullball"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 8), speed, "skullcollision", this,
chasingSpritePointValue));
}
else
{
// Create a plus
spriteList.Add(
new ChasingSprite(
Game.Content.Load<Texture2D>(@"images\plus"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 4), speed, "pluscollision", this,
chasingSpritePointValue));
}
}
else
{
// Create an EvadingSprite
if (((Game1)Game).rnd.Next(4) == 0)
{
if (((Game1)Game).rnd.Next(2) == 0)
{
EvadingSprite es = new EvadingSprite(Game.Content.Load<Texture2D>(@"images\bluehead"),
position, new Point(45, 90), 10, new Point(0, 0),
new Point(3, 4), speed, 100, "boltcollision1", this,
.75f, 60, evadingSpritePointValue);
spriteList.Add(es);
}
else
{
EvadingSprite es = new EvadingSprite(Game.Content.Load<Texture2D>(@"images\redhead"),
position, new Point(45, 95), 10, new Point(0, 0),
new Point(3, 4), speed, 100, "boltcollision2", this,
.75f, 60, evadingSpritePointValue);
spriteList.Add(es);
}
}
else
{
// spriteList.Add(
//new EvadingSprite(
//Game.Content.Load<Texture2D>(@"images\bluehead"),
//position, new Point(45, 90), 10, new Point(0, 0),
//new Point(3, 4), speed, 100, "threebladescollision",
//automatedSpritePointValue));
spriteList.Add(
new EvadingSprite(
Game.Content.Load<Texture2D>(@"images\bolt"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 8), speed * 0.9f, "boltcollision", this,
.75f, 40, evadingSpritePointValue));
}
}
}
private void SpawnEnemy()
{
Vector2 speed = Vector2.Zero;
Vector2 position = Vector2.Zero;
// Default frame size
Point frameSize = new Point(75, 75);
// Randomly choose which side of the screen to place enemy,
// then randomly create a position along that side of the screen
// and randomly choose a speed for the enemy
switch (((Game1)Game).rnd.Next(4))
{
case 0: // LEFT to RIGHT
position = new Vector2(
-frameSize.X, ((Game1)Game).rnd.Next(0,
Game.GraphicsDevice.PresentationParameters.BackBufferHeight
- frameSize.Y));
speed = new Vector2(((Game1)Game).rnd.Next(
enemyMinSpeed,
enemyMaxSpeed), 0);
break;
case 1: // RIGHT to LEFT
position = new
Vector2(
Game.GraphicsDevice.PresentationParameters.BackBufferWidth,
((Game1)Game).rnd.Next(0,
Game.GraphicsDevice.PresentationParameters.BackBufferHeight
- frameSize.Y));
speed = new Vector2(-((Game1)Game).rnd.Next(
enemyMinSpeed, enemyMaxSpeed), 0);
break;
case 2: // BOTTOM to TOP
position = new Vector2(((Game1)Game).rnd.Next(0,
Game.GraphicsDevice.PresentationParameters.BackBufferWidth
- frameSize.X),
Game.GraphicsDevice.PresentationParameters.BackBufferHeight);
speed = new Vector2(0,
-((Game1)Game).rnd.Next(enemyMinSpeed,
enemyMaxSpeed));
break;
case 3: // TOP to BOTTOM
position = new Vector2(((Game1)Game).rnd.Next(0,
Game.GraphicsDevice.PresentationParameters.BackBufferWidth
- frameSize.X), -frameSize.Y);
speed = new Vector2(0,
((Game1)Game).rnd.Next(enemyMinSpeed,
enemyMaxSpeed));
break;
}
// Get random number between 0 and 99
int random = ((Game1)Game).rnd.Next(100);
if (random < likelihoodAutomated)
{
// Create an AutomatedSprite.
// Get new random number to determine whether to
// create a three-blade or four-blade sprite.
if (((Game1)Game).rnd.Next(2) == 0)
{
// Create a four-blade enemy
spriteList.Add(
new AutomatedSprite(
Game.Content.Load <Texture2D>(@"images\fourblades"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 8), speed, "fourbladescollision",
automatedSpritePointValue));
}
else
{
// Create a three-blade enemy
spriteList.Add(
new AutomatedSprite(
Game.Content.Load <Texture2D>(@"images\threeblades"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 8), speed, "threebladescollision",
automatedSpritePointValue));
}
}
else if (random < likelihoodAutomated +
likelihoodChasing)
{
// Create a ChasingSprite.
// Get new random number to determine whether
// to create a skull or a plus sprite.
if (((Game1)Game).rnd.Next(2) == 0)
{
// Create a skull
spriteList.Add(
new ChasingSprite(
Game.Content.Load <Texture2D>(@"images\skullball"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 8), speed, "skullcollision", this,
chasingSpritePointValue));
}
else
{
// Create a plus
spriteList.Add(
new ChasingSprite(
Game.Content.Load <Texture2D>(@"images\plus"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 4), speed, "pluscollision", this,
chasingSpritePointValue));
}
}
else
{
// Create an EvadingSprite
if (((Game1)Game).rnd.Next(4) == 0)
{
if (((Game1)Game).rnd.Next(2) == 0)
{
EvadingSprite es = new EvadingSprite(Game.Content.Load <Texture2D>(@"images\bluehead"),
position, new Point(45, 90), 10, new Point(0, 0),
new Point(3, 4), speed, 100, "boltcollision1", this,
.75f, 60, evadingSpritePointValue);
spriteList.Add(es);
}
else
{
EvadingSprite es = new EvadingSprite(Game.Content.Load <Texture2D>(@"images\redhead"),
position, new Point(45, 95), 10, new Point(0, 0),
new Point(3, 4), speed, 100, "boltcollision2", this,
.75f, 60, evadingSpritePointValue);
spriteList.Add(es);
}
}
else
{
// spriteList.Add(
//new EvadingSprite(
//Game.Content.Load<Texture2D>(@"images\bluehead"),
//position, new Point(45, 90), 10, new Point(0, 0),
//new Point(3, 4), speed, 100, "threebladescollision",
//automatedSpritePointValue));
spriteList.Add(
new EvadingSprite(
Game.Content.Load <Texture2D>(@"images\bolt"),
position, new Point(75, 75), 10, new Point(0, 0),
new Point(6, 8), speed * 0.9f, "boltcollision", this,
.75f, 40, evadingSpritePointValue));
}
}
}