private void addBaffle(Body body)
{
try
{
if (body.GetUserData() == null)
{
return;
}
GizmoComponents myGizmo = (GizmoComponents)body.GetUserData();
//添加Shape
addPolygon(body);
//添加旋转关节
BodyDef kinematicBodyDef = new BodyDef();
Vec2 position = GizmoShape.PointRotate(new Vec2(myGizmo.PositionX, myGizmo.PositionY),
new Vec2(myGizmo.PositionX + myGizmo.Width, myGizmo.PositionY), System.Math.PI * 2 - myGizmo.Angle / 180 * System.Math.PI);
kinematicBodyDef.Position.Set(position.X, position.Y);
Body kinematicBody = myWorld.CreateBody(kinematicBodyDef);
RevoluteJointDef jointDef = new RevoluteJointDef();
switch ((int)myGizmo.Angle)
{
case 0:
jointDef.LowerAngle = -1.57f; //最小角
jointDef.UpperAngle = 0; //最大角
break;
case 90:
jointDef.LowerAngle = -1.57f; //最小角
jointDef.UpperAngle = 1.57f; //最大角
break;
case 180:
jointDef.LowerAngle = 0f; //最小角
jointDef.UpperAngle = 1.57f; //最大角
break;
case 270:
jointDef.LowerAngle = 0f; //最小角
jointDef.UpperAngle = 1.57f; //最大角
break;
}
jointDef.EnableLimit = true;
jointDef.MaxMotorTorque = 100.0f;
jointDef.MotorSpeed = 0.0f;
jointDef.EnableMotor = true;
jointDef.Initialize(body, kinematicBody, position);
RevoluteJoint joint = (RevoluteJoint)myWorld.CreateJoint(jointDef);
}
catch (Exception e)
{
MessageBox.Show("PhysicalWorld-addBaffleX函数出错");
}
}
public void draw(World world, Graphics g)
{
Body b = world.GetBodyList();
int i = 0;
do
{
SolidBrush brush;
if (b.GetUserData() == null)
{
i++;
b = b.GetNext();
continue;
}
GizmoComponents GComp = (GizmoComponents)b.GetUserData();
switch (GComp.Attribute)
{
case GizmoAttribute.pineBall:
brush = new SolidBrush(System.Drawing.Color.LawnGreen);
break;
case GizmoAttribute.staticGizmo:
brush = new SolidBrush(System.Drawing.Color.LightBlue);
break;
case GizmoAttribute.absorber:
brush = new SolidBrush(System.Drawing.Color.Red);
break;
case GizmoAttribute.dynamicGizmo:
brush = new SolidBrush(System.Drawing.Color.Yellow);
break;
case GizmoAttribute.track:
brush = new SolidBrush(System.Drawing.Color.Brown);
break;
case GizmoAttribute.baffle:
brush = new SolidBrush(System.Drawing.Color.Gray);
break;
default:
brush = new SolidBrush(System.Drawing.Color.Black);
break;
}
if (GComp == null)
{
continue;
}
switch (GComp.Shape)
{
case GizmoType.Circle:
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.FillEllipse(brush, (b.GetPosition().X - GComp.Radius) * Scale, (b.GetPosition().Y - GComp.Radius) * Scale, GComp.Radius * 2 * Scale, GComp.Radius * 2 * Scale);
break;
case GizmoType.Rectangle:
g.FillRectangle(brush, (b.GetPosition().X - GComp.Width) * Scale + 1, (b.GetPosition().Y - GComp.Height) * Scale + 1, (GComp.Width) * Scale * 2 - 1, (GComp.Height) * Scale * 2 - 1);
break;
case GizmoType.BaffleX:
case GizmoType.Baffle:
case GizmoType.Polygon:
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.FillPolygon(brush, GizmoShape.getBodyPoint(b, Scale).ToArray());
break;
}
i++;
b = b.GetNext();
} while (i < world.GetBodyCount() - 1);
}
