private void updateForce(GameTime gameTime)
{
RopeSegment current = ropeStart;
while (current != null)
{
current.updateForce(gameTime);
current = current.getNext();
}
}
public void Draw(SpriteBatch batch)
{
RopeSegment current = ropeStart;
while (current.getNext() != null)
{
drawBetweenSegments(current, current.getNext(), batch);
current = current.getNext();
}
}
private Vector2 getForceTo(RopeSegment seg)
{
Vector2 force = Vector2.Zero;
if (seg != null)
{
Vector2 dist = seg.getPos() - getPos();
float len = dist.Length();
float overlength = len - targetLength;
dist.Normalize();
force = dist * overlength * strength;
}
return(force);
}
private void drawBetweenSegments(RopeSegment one, RopeSegment two, SpriteBatch batch)
{
Vector2 dist = two.getPos() - one.getPos();
float rotation = (float)Math.Atan2(dist.Y, dist.X);
Vector2 scale = new Vector2(dist.Length() / BASE_LENGTH, 1);
float sc = (one.targetLength / dist.Length());
if (sc < 0)
{
sc = 0;
}
Color color = new Color(1 - sc, sc, 0);
batch.Draw(baseTexture, position: one.getPos(), scale: scale, rotation: rotation, color: color, origin: new Vector2(0, 2.5f));
//batch.Draw(baseTexture, position: one.getPos(), scale: new Vector2(5/100f, 1));
}
private void createSegments(Vector2 pos, int targetLength, int segments, float strength, float weight)
{
RopeSegment tmp = null;
float weightPerSegment = targetLength / 100f * weight / segments;
for (int i = 0; i < segments; i++)
{
RopeSegment seg = new RopeSegment(this, new Vector2(pos.X + (targetLength / segments - 1) * i, pos.Y), (targetLength / segments - 1), strength, weightPerSegment);
if (ropeStart == null)
{
ropeStart = seg;
}
if (tmp != null)
{
tmp.setNext(seg);
}
seg.setLast(tmp);
tmp = seg;
}
ropeEnd = tmp;
}
public void setNext(RopeSegment next)
{
this.next = next;
}
public void setLast(RopeSegment last)
{
this.last = last;
}