public Bullet(ContentManager content, SPoint position, SpaceInvaders gameRoot, SVector2D velocity, Color color) :
base(content, position, "Bullet", BULLET_WIDTH, gameRoot)
{
m_gameObjectType = GameObjectType.Bullet;
m_velocity = velocity;
m_accumulatedFlickTime = 0.0;
m_visibleState = false;
m_color = color;
}
private bool PointInsideRect(SPoint point, SPoint center, double width, double height)
{
if (point.x >= center.x - (width / 2.0) && point.x <= center.x + (width / 2.0) &&
point.y >= center.y - (height / 2.0) && point.y <= center.y + (height / 2.0))
{
return(true);
}
return(false);
}
public void TransformPoint(ref SPoint point)
{
double[] otherMatrix = { point.x, point.y, 1.0 };
double[] result = { 0.0, 0.0, 0.0 };
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
result[i] += otherMatrix[j] * m_matrix[j, i];
}
}
point.x = result[0];
point.y = result[1];
}
public Alien(ContentManager content, SPoint position, SpaceInvaders gameRoot, bool virt, int layer, AlienBehaviour behaviour) :
base(content, position, "Alien1", ALIEN_WIDTH, gameRoot)
{
m_gameObjectType = GameObjectType.Alien;
m_isVirtualAlien = virt;
m_goingRight = true;
m_hiddenPosition = m_position;
m_accumulatedTimePos = 0.0;
m_layer = layer;
m_gameRoot.GetAliensCountPerRow()[layer]++;
m_behaviour = behaviour;
m_behaviourIndex = 0;
m_accumulatedBehaviourTime = 0.0;
}
public GameObject(ContentManager content,
SPoint position,
string texutreFilename,
double width,
SpaceInvaders gameRoot)
{
m_content = content;
m_position = position;
m_textureFileName = texutreFilename;
m_width = width;
m_texture = m_content.Load <Texture2D>(m_textureFileName);
m_gameRoot = gameRoot;
m_gameObjectType = GameObjectType.Default;
m_dead = false;
}
private void CreateCastle(SPoint origin)
{
Color[] rawData = new Color[m_castleTexture.Width * m_castleTexture.Height];
m_castleTexture.GetData(rawData);
for (int i = 0; i < m_castleTexture.Height; i++)
{
for (int j = 0; j < m_castleTexture.Width; j++)
{
Color pixel = rawData[i * m_castleTexture.Width + j];
if (pixel.A >= 0.5)
{
Instantiate(new Block(m_content,
new SPoint(origin.x + (j - m_castleTexture.Width / 2.0) * Block.BLOCK_WIDTH,
origin.y + ((m_castleTexture.Height - i) - (m_castleTexture.Height / 2.0)) * Block.BLOCK_WIDTH),
this));
}
}
}
}
public void RenderSprite(SpriteBatch spriteBatch, Texture2D texture, SPoint position, double width, Color color)
{
double height = (width / texture.Height) * texture.Width;
// center the sprite
position.x -= width / 2.0;
position.y += height / 2.0;
// flip the sprite
position.y = m_baseHeight - position.y;
SVector2D rectangleOrigin = new SVector2D(0, 0);
double graphicsScale = 1.0;
double modifiedWidth = m_screenWidth;
if (m_screenWidth / m_screenHeight > m_baseWidth / m_baseHeight)
{
double center = m_screenWidth / 2.0;
graphicsScale = (m_screenHeight / m_baseHeight);
double actualWidthSide = graphicsScale * m_baseWidth;
modifiedWidth = actualWidthSide;
rectangleOrigin.x = center - (actualWidthSide / 2.0);
}
else
{
double center = m_screenHeight / 2.0;
graphicsScale = (m_screenWidth / m_baseWidth);
double actualHeightSide = graphicsScale * m_baseHeight;
rectangleOrigin.y = center - (actualHeightSide / 2.0);
}
double textureWidthPercentage = texture.Width / modifiedWidth;
double targetWidthPercentage = width / m_baseWidth;
double scale = targetWidthPercentage / textureWidthPercentage;
SPoint drawPosition = new SPoint(position.x * graphicsScale, position.y * graphicsScale);
drawPosition += rectangleOrigin;
spriteBatch.Draw(texture, new Vector2((float)drawPosition.x, (float)drawPosition.y), null, color, 0.0f, Vector2.Zero, (float)scale, SpriteEffects.None, 1.0f);
}
private void CreateAlienRow(double startHeight, int layer)
{
SPoint startingPos = new SPoint(Alien.ALIEN_WIDTH / 2.0,
startHeight - (Alien.ALIEN_WIDTH / 2.0)); // it should be height, but it work because it's a square
for (int i = 0; i < ALIENS_PER_ROW; i++)
{
Instantiate(new Alien(m_content, startingPos, this, false, layer, m_rowsBehaviours[layer].alienBehaviours[i]));
if (i == 0 || i == ALIENS_PER_ROW - 1)
{
Alien alien = new Alien(m_content, startingPos, this, true, layer, m_rowsBehaviours[layer].alienBehaviours[i]);
if (i == 0)
{
m_leftVirtualAlien = alien;
}
Instantiate(alien);
}
startingPos += new SVector2D(DISTANCE_BETWEEN_ALIENS, 0.0);
}
}
public Player(ContentManager content, SPoint position, SpaceInvaders gameRoot) :
base(content, position, "Player", PLAYER_WIDTH, gameRoot)
{
m_gameObjectType = GameObjectType.Player;
m_reloadingTime = PLAYER_TIME_TO_RELOAD;
}
public static SPoint operator -(SPoint point, double val)
{
SPoint result = new SPoint(point.x - val, point.y - val);
return(result);
}
public static SPoint operator -(SPoint point, SVector2D vec)
{
SPoint result = new SPoint(point.x - vec.x, point.y - vec.y);
return(result);
}
