/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int randomLocationX = GetRandomLocation(GameConstants.SpawnBorderSize, (GameConstants.WindowWidth - GameConstants.SpawnBorderSize));
int randomLocationY = GetRandomLocation(GameConstants.SpawnBorderSize, (GameConstants.WindowHeight - GameConstants.SpawnBorderSize));
// generate random velocity
float randomSpeed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float randomAngle = RandomNumberGenerator.NextFloat(2 * (float)Math.PI);
Vector2 randomVelocity = new Vector2((float)(randomSpeed * Math.Cos(randomAngle)), (float)(randomSpeed * Math.Sin(randomAngle)));
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"BuildGraphics\teddybear", randomLocationX, randomLocationY, randomVelocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> otherRectangles = GetCollisionRectangles();
while (CollisionUtils.IsCollisionFree(newBear.DrawRectangle, otherRectangles) == false)
{
newBear.X = GetRandomLocation(GameConstants.SpawnBorderSize, (GameConstants.WindowWidth - GameConstants.SpawnBorderSize));
newBear.Y = GetRandomLocation(GameConstants.SpawnBorderSize, (GameConstants.WindowHeight - GameConstants.SpawnBorderSize));
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int xBear = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize * 2);
int yBear = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize * 2);
// generate random velocity
float randVel = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange - GameConstants.MinBearSpeed);
float randAng = RandomNumberGenerator.NextFloat((float)Math.PI / 2);
Vector2 velBear = new Vector2(randVel * (float)Math.Cos(randAng), randVel * (float)Math.Sin(randAng));
// create new bear
TeddyBear newBear = new TeddyBear(Content, "graphics/teddybear", xBear, yBear, velBear, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> otherCollisionRectangles = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, otherCollisionRectangles))
{
newBear.X = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize * 2);
newBear.Y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize * 2);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int bearRndLocX = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize);
int bearRandLoxY = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize);
// generate random velocity, angle and Vector for the bear velocity
float bearRndSpeed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float bearRndAngle = RandomNumberGenerator.NextFloat((float)Math.PI);
//float bearRndAngle = (float)Math.PI/3;
Vector2 bearVelocityVector = new Vector2((float)(bearRndSpeed * Math.Cos(Convert.ToDouble(bearRndAngle))), (float)(bearRndSpeed * Math.Sin(Convert.ToDouble(bearRndAngle))));
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", bearRndLocX, bearRandLoxY, bearVelocityVector, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisionRectangles = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, collisionRectangles))
{
newBear.X = GetRandomLocation(0, GameConstants.WindowWidth);
newBear.Y = GetRandomLocation(0, GameConstants.WindowHeight);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int x = GetRandomLocation(GameConstants.SpawnBorderSize,
graphics.PreferredBackBufferWidth - 2 * GameConstants.SpawnBorderSize);
int y = GetRandomLocation(GameConstants.SpawnBorderSize,
graphics.PreferredBackBufferHeight - 2 * GameConstants.SpawnBorderSize);
// generate random velocity
float speed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float angle = RandomNumberGenerator.NextFloat(2 * (float)Math.PI);
Vector2 velocity = new Vector2(
(float)(speed * Math.Cos(angle)), (float)(speed * Math.Sin(angle)));
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", x, y, velocity, null, null);
// make sure we don't spawn into a collision
List <Rectangle> rects = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.DrawRectangle, rects))
{
x = GetRandomLocation(GameConstants.SpawnBorderSize, graphics.PreferredBackBufferWidth - 2 * GameConstants.SpawnBorderSize);
y = GetRandomLocation(GameConstants.SpawnBorderSize, graphics.PreferredBackBufferHeight - 2 * GameConstants.SpawnBorderSize);
newBear.X = x;
newBear.Y = y;
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
//Vector2 bearLocation = new Vector2(GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize),
// GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize));
int bearLocationX = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize);
int bearLocationY = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize);
// generate random velocity
float bearSpeed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float bearAngle = RandomNumberGenerator.NextFloat(2) * (float)Math.PI; // Radians
// Using Math.Sin to calculate the 'y' component and Math.Cos for the 'x' component
Vector2 bearVelocity = new Vector2((float)Math.Cos(bearAngle) * bearSpeed, (float)Math.Sin(bearAngle) * bearSpeed);
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", bearLocationX, bearLocationY, bearVelocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisionRectangles = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, collisionRectangles))
{
newBear.X = GetRandomLocation(0, GameConstants.WindowWidth);
newBear.Y = GetRandomLocation(0, GameConstants.WindowHeight);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location, note the location might be in border since we use it's center as (x,y)
int x = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize);
int y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize);
// generate random velocity
float v = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange - GameConstants.MinBearSpeed);
float angle = RandomNumberGenerator.NextFloat(2 * (float)Math.PI);
Vector2 velocity = new Vector2((float)(v * Math.Cos(angle)), (float)(v * Math.Sin(angle)));
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", x, y, velocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, GetCollisionRectangles()))
{
x = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize);
y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize);
newBear = new TeddyBear(Content, @"graphics\teddybear", x, y, velocity, teddyBounce, teddyShot);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int x = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE,
graphics.PreferredBackBufferWidth - 2 * GameConstants.SPAWN_BORDER_SIZE);
int y = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE,
graphics.PreferredBackBufferHeight - 2 * GameConstants.SPAWN_BORDER_SIZE);
// generate random velocity
float speed = GameConstants.MIN_BEAR_SPEED +
RandomNumberGenerator.NextFloat(GameConstants.BEAR_SPEED_RANGE);
float angle = RandomNumberGenerator.NextFloat(2 * (float)Math.PI);
Vector2 velocity = new Vector2(
(float)(speed * Math.Cos(angle)), (float)(speed * Math.Sin(angle)));
// create new bear
TeddyBear newBear = new TeddyBear(Content, "teddybear", x, y, velocity,
null, null);
// make sure we don't spawn into a collision
List <Rectangle> CollisionRectangles = new List <Rectangle>(GetCollisionRectangles());
while (CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, CollisionRectangles) == false)
{
newBear.X = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_WIDTH - (2 * GameConstants.SPAWN_BORDER_SIZE));
newBear.Y = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_HEIGHT - (2 * GameConstants.SPAWN_BORDER_SIZE));
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int xLoc = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_WIDTH - 2 * GameConstants.SPAWN_BORDER_SIZE);
int yLoc = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_HEIGHT - 2 * GameConstants.SPAWN_BORDER_SIZE);
// generate random velocity
float speed = GameConstants.MIN_BEAR_SPEED + RandomNumberGenerator.NextFloat(GameConstants.BEAR_SPEED_RANGE);
float angle = RandomNumberGenerator.NextFloat(2 * (float)Math.PI);
Vector2 velocity = new Vector2(speed * (float)Math.Cos(angle), speed * (float)Math.Sin(angle));
// create new bear
TeddyBear newBear = new TeddyBear(Content, "teddybear", xLoc, yLoc, velocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> rectangles = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, rectangles))
{
newBear.X = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_WIDTH - 2 * GameConstants.SPAWN_BORDER_SIZE);
newBear.Y = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_HEIGHT - 2 * GameConstants.SPAWN_BORDER_SIZE);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int start_x = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_WIDTH - 2 * GameConstants.SPAWN_BORDER_SIZE);
int start_y = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_HEIGHT - 2 * GameConstants.SPAWN_BORDER_SIZE);
// generate random velocity
//float v_random=GameConstants.MIN_BEAR_SPEED+RandomNumberGenerator.NextFloat(RandomNumberGenerator.NextFloat((GameConstants.BEAR_SPEED_RANGE)));
float v_random = GameConstants.MIN_BEAR_SPEED + RandomNumberGenerator.NextFloat(GameConstants.BEAR_SPEED_RANGE);
//float angle_random = (float)Math.PI * RandomNumberGenerator.NextFloat(2);
float angle_random = RandomNumberGenerator.NextFloat((float)Math.PI * 2);
Vector2 velocity = new Vector2(v_random * (float)Math.Cos(angle_random), v_random * (float)Math.Sin(angle_random));
// create new bear
TeddyBear NewBear = new TeddyBear(Content, "teddybear", start_x, start_y, velocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisionRectangles = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(NewBear.CollisionRectangle, collisionRectangles))
{
NewBear.X = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE,
graphics.PreferredBackBufferWidth - 2 * GameConstants.SPAWN_BORDER_SIZE);
NewBear.Y = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE,
graphics.PreferredBackBufferHeight - 2 * GameConstants.SPAWN_BORDER_SIZE);
}
// add new bear to list
bears.Add(NewBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int x = GetRandomLocation(GameConstants.SpawnBorderSize,
GameConstants.WindowWidth - 2 * GameConstants.SpawnBorderSize);
int y = GetRandomLocation(GameConstants.SpawnBorderSize,
GameConstants.WindowHeight - 2 * GameConstants.SpawnBorderSize);
// generate random velocity
float speed = RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange) + GameConstants.MinBearSpeed;
float angle = RandomNumberGenerator.NextFloat(2.0f * (float)Math.PI);
Vector2 velocity = new Vector2(speed * (float)Math.Cos(angle), speed * (float)Math.Sin(angle));
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", x, y, velocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisionRectangles = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, collisionRectangles))
{
newBear.X = GetRandomLocation(GameConstants.SpawnBorderSize,
GameConstants.WindowWidth - 2 * GameConstants.SpawnBorderSize);
newBear.Y = GetRandomLocation(GameConstants.SpawnBorderSize,
GameConstants.WindowHeight - 2 * GameConstants.SpawnBorderSize);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int bx = GetRandomLocation(GameConstants.SpawnBorderSize, graphics.PreferredBackBufferWidth - 2 * GameConstants.SpawnBorderSize);
int by = GetRandomLocation(GameConstants.SpawnBorderSize, graphics.PreferredBackBufferWidth - 2 * GameConstants.SpawnBorderSize);
// generate random velocity
float vel = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float ang = RandomNumberGenerator.NextFloat((float)Math.PI);
Vector2 vec = new Vector2((float)Math.Cos(ang) * vel, -1 * (float)Math.Sin(ang) * vel);
// create new bear
TeddyBear newbear = new TeddyBear(Content, @"graphics/teddybear", bx, by, vec, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisionRectangules = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newbear.DrawRectangle, collisionRectangules))
{
newbear.X = GetRandomLocation(GameConstants.SpawnBorderSize, graphics.PreferredBackBufferWidth - 2 * GameConstants.SpawnBorderSize);
newbear.Y = GetRandomLocation(GameConstants.SpawnBorderSize, graphics.PreferredBackBufferWidth - 2 * GameConstants.SpawnBorderSize);
}
// add new bear to list
bears.Add(newbear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int locationX = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth);
int locationY = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight);
// generate random velocity
float speed1 = RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float speed2 = RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
/* ------- Vidi za angle generator --------------
* RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
* // generate random angle float angle = (float)Math.PI * RandomNumberGenerator.NextFloat(360.0f) / 180.0f;
* // generate vector velocity Vector2 velocity = new Vector2((float)Math.Cos(angle) * speed, -(float)Math.Sin(angle) * speed);
*/
Vector2 vector = new Vector2(speed1, speed2);
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics/teddybear", locationX, locationY, vector, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisionsList = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.DrawRectangle, collisionsList))
{
newBear.X = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth);
newBear.Y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int locationX = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, graphics.PreferredBackBufferWidth - 2 * GameConstants.SPAWN_BORDER_SIZE);
int locationY = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, graphics.PreferredBackBufferHeight - 2 * GameConstants.SPAWN_BORDER_SIZE);
// generate random velocity
float speed = GameConstants.MIN_BEAR_SPEED + RandomNumberGenerator.NextFloat(GameConstants.BEAR_SPEED_RANGE);
float angle = RandomNumberGenerator.NextFloat((float)(Math.PI * 2));
Vector2 velocity = new Vector2(speed * (float)Math.Cos((double)angle), speed * (float)Math.Sin((double)angle));
// create new bear
TeddyBear newBear = new TeddyBear(Content, "teddybear", locationX, locationY, velocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisionRectangles = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.DrawRectangle, collisionRectangles))
{
newBear.X = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, graphics.PreferredBackBufferWidth - 2 * GameConstants.SPAWN_BORDER_SIZE);
newBear.Y = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, graphics.PreferredBackBufferHeight - 2 * GameConstants.SPAWN_BORDER_SIZE);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int X = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize);
int Y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize);
// generate random velocity
float XVelocity = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float YVelocity = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float angle = (float)((RandomNumberGenerator.NextFloat(360)) / (2 * Math.PI));
Vector2 bearVelocity = new Vector2((float)(XVelocity * Math.Sin(angle)), (float)(YVelocity * Math.Cos(angle)));
// create new bear
TeddyBear newBear = new TeddyBear(Content, "Graphics//teddyBear", X, Y, bearVelocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisionRectangles = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, collisionRectangles))
{
newBear.X = GetRandomLocation(0, GameConstants.WindowWidth);
newBear.Y = GetRandomLocation(0, GameConstants.WindowHeight);
}
bears.Add(newBear);
// add new bear to list
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int x = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize);
int y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize);
// generate random velocity
float BearSpeed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
//random angle
float BearAngle = RandomNumberGenerator.NextFloat((float)Math.PI);
//new vector2 object
Vector2 Velocity = new Vector2((float)Math.Cos(BearAngle) * BearSpeed, ((float)Math.Sin(BearAngle) * BearSpeed));
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", x,
y, Velocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisionList = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, collisionList))
{
newBear.X = GetRandomLocation(0, GameConstants.WindowWidth);
newBear.Y = GetRandomLocation(0, GameConstants.WindowHeight);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location : SpawnBorderSize is subtracted twice, one for left/top side and one for right/bottom side
int randomXLocation = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - (GameConstants.SpawnBorderSize * 2));
int randomYLocation = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - (GameConstants.SpawnBorderSize * 2));
// generate random velocity
//create random speeds
float randomSpeed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
//create random angle
float randomAngle = 2 * (float)Math.PI * RandomNumberGenerator.NextFloat(1);
//create Vector2
Vector2 randomVelocity = new Vector2((float)Math.Cos(randomAngle) * randomSpeed, (float)Math.Sin(randomAngle) * randomSpeed);
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", randomXLocation, randomYLocation, randomVelocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
while (CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, GetCollisionRectangles()) == false)
{
//change x and y values
newBear.X = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - (GameConstants.SpawnBorderSize * 2));
newBear.Y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - (GameConstants.SpawnBorderSize * 2));
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int bearX = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize);
int bearY = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize);
// generate random velocity
float velMagnitude = RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
if(velMagnitude < GameConstants.MinBearSpeed)
{
velMagnitude = GameConstants.MinBearSpeed;
}
float velAngle = RandomNumberGenerator.NextFloat(2 * (float)Math.PI);
Vector2 bearVelocity = new Vector2((float)(velMagnitude * Math.Cos((double)velAngle)), (float)(velMagnitude * Math.Sin((double)velAngle)));
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddyBear", bearX, bearY, bearVelocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List<Rectangle> collisionRectangles = GetCollisionRectangles();
while(CollisionUtils.IsCollisionFree(newBear.DrawRectangle, collisionRectangles))
{
bearX = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize);
bearY = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize);
newBear.X = bearX;
newBear.Y = bearY;
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize * 2);
int x = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize * 2);
// generate random velocity
float speed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float angle = RandomNumberGenerator.NextFloat((float)Math.PI * 2);
Vector2 velocity = new Vector2((float)(speed * Math.Cos(angle)), (float)(speed * Math.Sin(angle)));
// create new bear
TeddyBear bear = new TeddyBear(Content, @"graphics/teddybear", x, y, velocity, null, null);
// make sure we don't spawn into a collision
List <Rectangle> rectangles = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(bear.CollisionRectangle, rectangles))
{
y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize * 2);
x = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize * 2);
bear.X = x;
bear.Y = y;
}
// add new bear to list
bears.Add(bear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int X = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - (2 * GameConstants.SpawnBorderSize));
int Y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - (2 * GameConstants.SpawnBorderSize));
// generate random velocity
float angle = RandomNumberGenerator.NextFloat((float)Math.PI * 2);
float velocity = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
Vector2 bearVector = new Vector2(velocity * (float)Math.Cos(angle), velocity * (float)Math.Sin(angle));
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", X, Y, bearVector, null, null);
// make sure we don't spawn into a collision
List <Rectangle> collisionRectangles = GetCollisionRectangles();
while (CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, collisionRectangles) == false)
{
newBear.X = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth -
(2 * GameConstants.SpawnBorderSize));
newBear.Y = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth -
(2 * GameConstants.SpawnBorderSize));
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location (bear sprite size = 46 x 64)
int randomLocationX = GetRandomLocation(GameConstants.SpawnBorderSize,
GameConstants.WindowWidth - 2 * GameConstants.SpawnBorderSize);
int randomLocationY = GetRandomLocation(GameConstants.SpawnBorderSize,
GameConstants.WindowHeight - 2 * GameConstants.SpawnBorderSize);
// generate random velocity
float bearRandomSpeed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float randomAngle = RandomNumberGenerator.NextFloat((float)Math.PI * 2);
float speedX = bearRandomSpeed * (float)Math.Cos(randomAngle);
float speedY = bearRandomSpeed * (float)Math.Sin(randomAngle);
Vector2 bearVelocity = new Vector2(speedX, speedY);
// create new bear
TeddyBear newBear;
newBear = new TeddyBear(Content, @"graphics\teddybear", randomLocationX, randomLocationY, bearVelocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
while (!CollisionUtils.IsCollisionFree(newBear.DrawRectangle, GetCollisionRectangles()))
{
newBear.X = GetRandomLocation(GameConstants.SpawnBorderSize,
GameConstants.WindowWidth - 2 * GameConstants.SpawnBorderSize);
newBear.Y = GetRandomLocation(GameConstants.SpawnBorderSize,
GameConstants.WindowHeight - 2 * GameConstants.SpawnBorderSize);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int x = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_WIDTH - 2 * GameConstants.SPAWN_BORDER_SIZE);
int y = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE, GameConstants.WINDOW_HEIGHT - 2 * GameConstants.SPAWN_BORDER_SIZE);
// generate random velocity
float bearSpeedValue = GameConstants.MIN_BEAR_SPEED + RandomNumberGenerator.NextFloat(GameConstants.BEAR_SPEED_RANGE);
float angle = RandomNumberGenerator.NextFloat((float)Math.PI * 2);
Vector2 bearVelocity = new Vector2(bearSpeedValue * (float)Math.Cos(angle), (float)bearSpeedValue * (float)Math.Sin(angle));
// create new bear
TeddyBear newBear = new TeddyBear(Content, "teddybear", x, y, bearVelocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
//Get list of collision rectangles
List <Rectangle> collisionRectangles = GetCollisionRectangles();
//Reset spawn location until collision free location is chosen
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, collisionRectangles))
{
newBear.X = GetRandomLocation(0, GameConstants.WINDOW_WIDTH);
newBear.Y = GetRandomLocation(0, GameConstants.WINDOW_HEIGHT);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int x = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE,
GameConstants.WINDOW_WIDTH - 2 * GameConstants.SPAWN_BORDER_SIZE);
int y = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE,
GameConstants.WINDOW_HEIGHT - 2 * GameConstants.SPAWN_BORDER_SIZE);
// generate random velocity
float Rand_Speed = RandomNumberGenerator.NextFloat(GameConstants.BEAR_SPEED_RANGE);
if (Rand_Speed < GameConstants.MIN_BEAR_SPEED)
{
Rand_Speed += GameConstants.MIN_BEAR_SPEED;
}
float Rand_Angle = RandomNumberGenerator.NextFloat((float)Math.PI * 2);
Vector2 Rand_Velocity = new Vector2(Rand_Speed * (float)Math.Cos(Rand_Angle),
Rand_Speed * (float)Math.Sin(Rand_Angle));
// create new bear
TeddyBear newBear = new TeddyBear(Content, "teddybear", x, y, Rand_Velocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
while (CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, GetCollisionRectangles()) == false)
{
newBear.X = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE,
GameConstants.WINDOW_WIDTH - 2 * GameConstants.SPAWN_BORDER_SIZE);
newBear.Y = GetRandomLocation(GameConstants.SPAWN_BORDER_SIZE,
GameConstants.WINDOW_WIDTH - 2 * GameConstants.SPAWN_BORDER_SIZE);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int xBearRandom = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize * 2 - Content.Load <Texture2D>(@"graphics\teddybear").Width);
int yBearRandom = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize * 2 - Content.Load <Texture2D>(@"graphics\teddybear").Height);
//GameConstants.SpawnBorderSize + RandomNumberGenerator.Next(GameConstants.WindowWidth - GameConstants.SpawnBorderSize * 2 + 1);
// generate random velocity
float speedBear = RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
if (speedBear < GameConstants.MinBearSpeed)
{
speedBear = GameConstants.MinBearSpeed;
}
// a random angle using Math.PI and the RandomNumberGenerator NextFloat method
float angleInRadians = RandomNumberGenerator.NextFloat(2 * (float)Math.PI); //360 = 2*Pi
float angleInDegree = angleInRadians * (180 / (float)Math.PI);
//random speed and angles you generated and the appropriate trigonometry: speed as the length of hypotenuse of a right triangle
float xVelocity = speedBear * (float)Math.Cos(angleInRadians);
float yVelocity = speedBear * (float)Math.Sin(angleInRadians);
Vector2 velocityBear = new Vector2(xVelocity, yVelocity);
// create new bear be speed * cos(angle) and the Y component would be speed * sin(angle)
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", xBearRandom, yBearRandom, velocityBear, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> collisions = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.DrawRectangle, collisions))
{
int newXBearRandom = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowWidth - GameConstants.SpawnBorderSize * 2 - Content.Load <Texture2D>(@"graphics\teddybear").Width);
int newYBearRandom = GetRandomLocation(GameConstants.SpawnBorderSize, GameConstants.WindowHeight - GameConstants.SpawnBorderSize * 2 - Content.Load <Texture2D>(@"graphics\teddybear").Height);
newBear.X = newXBearRandom;
newBear.Y = newYBearRandom;
//alternate way ()instead of 2 above statements:
//newBear = new TeddyBear(Content, @"graphics\teddybear", newXBearRandom, newYBearRandom, velocityBear, null, null);
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int xLocation = GetRandomLocation(0 + GameConstants.SpawnBorderSize,
GameConstants.WindowWidth - GameConstants.SpawnBorderSize);
int yLocation = GetRandomLocation(0 + GameConstants.SpawnBorderSize,
GameConstants.WindowHeight - GameConstants.SpawnBorderSize);
// generate random speed
float speed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
// generate random angle
float angle = RandomNumberGenerator.NextFloat((float)Math.PI);
// generate random velocity
// sine angle * speed = y velocity
// cos angle * speed = x velocity
float xVelocity = (float)Math.Sin(angle) * speed;
float yVelocity = (float)Math.Cos(angle) * speed;
Vector2 velocity = new Vector2(xVelocity, yVelocity);
// create new bear
// make sure we don't spawn into a collision
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", xLocation, yLocation, velocity, teddyBounce, teddyShot);
// ensure teddy bears don't spawn into collisions
List <Rectangle> allCollisions = GetCollisionRectangles();
while (!CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, allCollisions))
{
int newXLocation = GetRandomLocation(0 + GameConstants.SpawnBorderSize, GameConstants.WindowWidth -
GameConstants.SpawnBorderSize);
int newYLocation = GetRandomLocation(0 + GameConstants.SpawnBorderSize, GameConstants.WindowHeight -
GameConstants.SpawnBorderSize);
newBear.X = newXLocation;
newBear.Y = newYLocation;
}
// add new bear to list
bears.Add(newBear);
}
/// <summary>
/// Spawns a new teddy bear at a random location
/// </summary>
private void SpawnBear()
{
// generate random location
int randX = RandomNumberGenerator.Next(GameConstants.SpawnBorderSize);
int randY = RandomNumberGenerator.Next(GameConstants.SpawnBorderSize);
// generate random velocity
float randSpeed = GameConstants.MinBearSpeed + RandomNumberGenerator.NextFloat(GameConstants.BearSpeedRange);
float randAngle = RandomNumberGenerator.NextFloat(2 * (float)Math.PI);
Vector2 randVelocity = new Vector2(randSpeed * (float)Math.Cos(randAngle), randSpeed * (float)Math.Sin(randAngle));
// create new bear
TeddyBear newBear = new TeddyBear(Content, @"graphics\teddybear", randX, randY, randVelocity, teddyBounce, teddyShot);
// make sure we don't spawn into a collision
List <Rectangle> CollisionRectangles = GetCollisionRectangles();
while (CollisionUtils.IsCollisionFree(newBear.CollisionRectangle, CollisionRectangles) != true)
{
newBear.X = GetRandomLocation(GameConstants.SpawnBorderSize, graphics.PreferredBackBufferWidth - 2 * GameConstants.SpawnBorderSize);
newBear.Y = GetRandomLocation(GameConstants.SpawnBorderSize, graphics.PreferredBackBufferHeight - 2 * GameConstants.SpawnBorderSize);
}
// add new bear to list
bears.Add(newBear);
}
