public Bezier( Vector2D begin, Vector2D end, params Vector2D[] controlls )
: this()
{
MidiumPoints = new List<Vector2D>( controlls );
this.Begin = begin;
this.End = end;
}
public static void DrawExtend( this SpriteBatch spriteBatch, Texture2D texture, Vector2D position, Vector2D scale, NacRectangle? source = null,
Color? color = null, float rotation = 0, Vector2D? origin = null, SpriteEffects effect = SpriteEffects.None, float layerDepth = 0 )
{
Color c = color ?? Color.White;
XnaRectangle? s = source != null ? source.Value.ToXna() : (XnaRectangle?)null;
Vector2 o = ( origin ?? Vector2D.Zero ).ToXna();
spriteBatch.Draw( texture, position.ToXna(), s, c, rotation, o, scale.ToXna(), effect, layerDepth );
}
public MouseHelper( Game game )
: base(game)
{
var state = Mouse.GetState();
position = new Vector2D( state.X, state.Y );
leftButton = rightButton = middleButton = 0;
wheel = 0;
}
public static void Draw( this SpriteBatch spriteBatch, Texture2D texture, NacRectangle destination, NacRectangle? source = null, Color? color = null,
float rotation = 0, Vector2D? origin = null, SpriteEffects effect = SpriteEffects.None, float layerDepth = 0 )
{
Color c = color ?? Color.White;
XnaRectangle? s = source != null ? source.Value.ToXna() : (XnaRectangle?)null;
Vector2 o = ( origin ?? texture.Bounds.Center.ToVector2D() ).ToXna();
spriteBatch.Draw( texture, destination.ToXna(), s, c, rotation, o, effect, layerDepth );
}
public static void DrawCenter( this SpriteBatch spriteBatch, Texture2D texture, Vector2D position, NacRectangle? source = null, Color? color = null,
float rotation = 0, float scale = 1, SpriteEffects effect = SpriteEffects.None, float layerDepth = 0 )
{
XnaRectangle? so = source != null ? source.Value.ToXna() : (XnaRectangle?)null;
Color c = color ?? Color.White;
Vector2 o = source == null ? texture.Bounds.Center.ToVector2() : ( source.Value.Size / 2 ).ToXna();
spriteBatch.Draw( texture, position.ToXna(), so, c, rotation, o, scale, effect, layerDepth );
}
public TowardMotion( Vector2D from, Vector2D to, int time, float beginWeight = 1, float endWeight = 1 )
{
v = new BezierValue( beginWeight, endWeight );
this.from = from;
this.to = to;
this.paramater = 0;
this.diff = 1.0f / time;
this.restTime = time;
Enabled = true;
}
internal MouseCount( Vector2D position, Vector2D velocity, int left, int right, int middle, int wheel )
: this()
{
this.Position = position;
this.Velocity = velocity;
this.LeftButton = left;
this.RightButton = right;
this.MiddleButton = middle;
this.Wheel = wheel;
}
public Vector2D Move( Vector2D position )
{
if( restTime <= 0 )
{
Enabled = false;
paramater = 1;
return to;
}
paramater = MathHelper.Clamp( paramater + diff, 0, 1 );
restTime--;
return from + v[paramater] * ( to - from );
}
public void DrawCircle( Vector2D center, float radius, Color color, bool fill )
{
Func<float, float, Vector2D> f = ( x, y ) => center + new Vector2D( x, y );
Vector2 draw = new Vector2( radius, 0 );
Vector2 prev = draw;
while( draw.X >= draw.Y )
{
if( fill )
{
Action<float, float> d = ( x, y ) => DrawHorizon( center.Y + y, center.X - x, center.X + x, color );
d( draw.X, draw.Y );
if( draw.Y != 0 )
d( draw.X, -draw.Y );
if( draw.X != prev.X )
{
d( draw.Y, draw.X );
d( draw.Y, -draw.X );
}
}
else
{
spriteBatch.Draw( pixel, f( draw.X, draw.Y ).ToXna(), color );
spriteBatch.Draw( pixel, f( draw.X, -draw.Y ).ToXna(), color );
spriteBatch.Draw( pixel, f( -draw.X, draw.Y ).ToXna(), color );
spriteBatch.Draw( pixel, f( -draw.X, -draw.Y ).ToXna(), color );
spriteBatch.Draw( pixel, f( draw.Y, draw.X ).ToXna(), color );
spriteBatch.Draw( pixel, f( draw.Y, -draw.X ).ToXna(), color );
spriteBatch.Draw( pixel, f( -draw.Y, draw.X ).ToXna(), color );
spriteBatch.Draw( pixel, f( -draw.Y, -draw.X ).ToXna(), color );
}
prev = draw;
Vector2 a = new Vector2( draw.X, draw.Y + 1 );
Vector2 b = new Vector2( draw.X - 1, draw.Y + 1 );
float ad = Math.Abs( a.LengthSquared() - radius*radius );
float bd = Math.Abs( b.LengthSquared() - radius*radius );
draw = ad < bd ? a : b;
}
}
/// <summary>
/// 指定した２つのベクトルの外積(ウェッジ積)を計算します。
/// </summary>
/// <param name="lop">外積の左オペランド。</param>
/// <param name="rop">外積の右オペランド。</param>
/// <returns>外積の演算結果。</returns>
public static float Wedge( Vector2D lop, Vector2D rop )
{
return lop.X * rop.Y - lop.Y * rop.X;
}
public static Vector2D GetDistance( Vector2D from, Vector2D to )
{
return new Vector2D( to.X - from.X, to.Y - from.Y );
}
/// <summary>
/// 指定した２つのベクトルの内積(ドット積)を計算します。
/// </summary>
/// <param name="lop">内積の左オペランド。</param>
/// <param name="rop">内積の右オペランド。</param>
/// <returns>内積の演算結果。</returns>
public static float Dot( Vector2D lop, Vector2D rop )
{
return lop.X * rop.X + lop.Y * rop.Y;
}
public void DrawRectangle( Vector2D leftTop, Vector2D size, Color color, bool fill )
{
DrawRectangle( new NacGeo::Rectangle( leftTop, size ), color, fill );
}
public override void Update( GameTime gameTime )
{
var state = Mouse.GetState();
prevPosition = position;
position = new Vector2D( state.X, state.Y );
if( state.LeftButton == ButtonState.Pressed ) leftButton++;
else leftButton = 0;
if( state.RightButton == ButtonState.Pressed ) rightButton++;
else rightButton = 0;
if( state.MiddleButton == ButtonState.Pressed ) middleButton++;
else middleButton = 0;
prevWheel = wheel;
wheel = state.ScrollWheelValue;
}
public static void DrawStringCenter( this SpriteBatch spriteBatch, SpriteFont font, string text, Vector2D location, Color color )
{
var size = font.MeasureString( text );
spriteBatch.DrawString( font, text, location.ToXna() - size/2, color );
}
public void Move( ref Vector2D position )
{
position = Move( position );
}
public Circle( Vector2D center, float radius )
: this()
{
Center = center;
this.Radius = radius;
}
public void DrawLine( Vector2D begin, Vector2D end, Color color )
{
Vector2D draw = new Vector2D( begin.X, begin.Y );
Vector2D distance = new Vector2D( ( end - begin ).X, ( end - begin ).Y );
Vector2D diff = new Vector2D();
diff = distance / Math.Max( Math.Abs( distance.X ), Math.Abs( distance.Y ) );
for( ; ( draw - begin ).SquaredLength <= distance.SquaredLength; draw += diff )
spriteBatch.Draw( pixel, draw.ToXna(), color );
}
public override void Update( GameTime gameTime )
{
if( Value >= 100 || Value <= -100 )
{
Enabled = false;
base.Update( gameTime );
return;
}
Value += Speed * (float)gameTime.ElapsedGameTime.TotalSeconds;
var count = keyboard.GetState();
if( count[MeanOfKey.Mean1] == 1 && Speed > 0 ||
count[MeanOfKey.Mean2] == 1 && Speed < 0 )
{
int add = (int)( Speed * Value );
Score += add;
var pos = new Vector2D( ChickenRace.materCenter + ChickenRace.box.Size.X/2 * Value / 100.0f - 30, ChickenRace.box.Top - 16 );
scoreShows.Add( new ScoreShowing( Game, pos, add, Value > 0 ? ChickenRace.Red : ChickenRace.Blue ) );
Speed += Math.Sign( Speed ) * 3.5f;
Speed = -Speed;
}
base.Update( gameTime );
}
public void DrawPixel( Vector2D position, Color color, float layerDepth = 0.0f )
{
spriteBatch.Draw( pixel, position, color: color, layerDepth: layerDepth );
}
public Circle( float centerX, float centerY, float radius )
: this()
{
Center = new Vector2D( centerX, centerY );
this.Radius = radius;
}
