public void set(Color4f color)
{
r = (byte) (255*color.x);
g = (byte) (255*color.y);
b = (byte) (255*color.z);
a = (byte) 255;
}
public override void drawParticlesWireframe(Vec2[] centers, float radius, ParticleColor[] colors, int count)
{
Color4f pcolorA = new Color4f(1f, 1f, 1f);
for (int i = 0; i < count; i++)
{
Vec2 center = centers[i];
Color4f color;
if (colors == null)
{
color = pcolorA;
}
else
{
ParticleColor c = colors[i];
color = new Color4f(c.r * 1f / 127, c.g * 1f / 127, c.b * 1f / 127, c.a * 1f / 127);
}
drawCircle(center, radius, color);
}
}
public override void drawCircle(Vec2 center, float radius, Color4f color)
{
int segments = 16;
double increment = Math.PI * 2.0 / (double)segments;
double theta = 0.0;
Color xnaColor = new Color(color.x, color.y, color.z, color.w);
for (int i = 0; i < segments; i++)
{
Vector2 v1 = new Vector2(center.x, center.y) + radius * new Vector2((float)Math.Cos(theta), (float)Math.Sin(theta));
Vector2 v2 = new Vector2(center.x, center.y) + radius * new Vector2((float)Math.Cos(theta + increment), (float)Math.Sin(theta + increment));
_vertsLines[_lineCount * 2].Position = new Vector3(v1, 0.0f);
_vertsLines[_lineCount * 2].Color = xnaColor;
_vertsLines[_lineCount * 2 + 1].Position = new Vector3(v2, 0.0f);
_vertsLines[_lineCount * 2 + 1].Color = xnaColor;
_lineCount++;
theta += increment;
}
}
/**
* Draw a closed polygon provided in CCW order. This implementation uses
* {@link #drawSegment(Vec2, Vec2, Color4f)} to draw each side of the polygon.
*
* @param vertices
* @param vertexCount
* @param color
*/
public void drawPolygon(Vec2[] vertices, int vertexCount, Color4f color)
{
if (vertexCount == 1)
{
drawSegment(vertices[0], vertices[0], color);
return;
}
for (int i = 0; i < vertexCount - 1; i += 1)
{
drawSegment(vertices[i], vertices[i + 1], color);
}
if (vertexCount > 2)
{
drawSegment(vertices[vertexCount - 1], vertices[0], color);
}
}
/**
* Draw a line segment.
*
* @param p1
* @param p2
* @param color
*/
public abstract void drawSegment(Vec2 p1, Vec2 p2, Color4f color);
/** Draws a circle with an axis */
public void drawCircle(Vec2 center, float radius, Vec2 axis, Color4f color)
{
drawCircle(center, radius, color);
}
public abstract void drawPoint(Vec2 argPoint, float argRadiusOnScreen, Color4f argColor);
public ParticleColor(Color4f color)
{
set(color);
}
/**
* Draw a circle.
*
* @param center
* @param radius
* @param color
*/
public abstract void drawCircle(Vec2 center, float radius, Color4f color);
/**
* Draw a string.
*
* @param x
* @param y
* @param s
* @param color
*/
public abstract void drawString(float x, float y, string s, Color4f color);
public override void drawSegment(Vec2 p1, Vec2 p2, Color4f color)
{
Color xnaColor = new Color(color.x, color.y, color.z);
_vertsLines[_lineCount * 2].Position = new Vector3(p1.x, p1.y, 0.0f);
_vertsLines[_lineCount * 2 + 1].Position = new Vector3(p2.x, p2.y, 0.0f);
_vertsLines[_lineCount * 2].Color = _vertsLines[_lineCount * 2 + 1].Color = xnaColor;
_lineCount++;
}
private void DrawSolidPolygon(Vec2[] vertices, int count, Color4f color, bool outline)
{
if (count == 2)
{
drawPolygon(vertices, count, color);
return;
}
Color colorFill = new Color(color.x, color.y, color.z) * (outline ? 0.5f : 1.0f);
for (int i = 1; i < count - 1; i++)
{
_vertsFill[_fillCount * 3].Position = new Vector3(vertices[0].x, vertices[0].y, 0.0f);
_vertsFill[_fillCount * 3].Color = colorFill;
_vertsFill[_fillCount * 3 + 1].Position = new Vector3(vertices[i].x, vertices[i].y, 0.0f);
_vertsFill[_fillCount * 3 + 1].Color = colorFill;
_vertsFill[_fillCount * 3 + 2].Position = new Vector3(vertices[i+1].x, vertices[i+1].y, 0.0f);
_vertsFill[_fillCount * 3 + 2].Color = colorFill;
_fillCount++;
}
if (outline)
{
drawPolygon(vertices, count, color);
}
}
public StringData(float x, float y, string s, Color4f color)
{
this.x = x;
this.y = y;
this.s = s;
this.color = new Color(color.x, color.y, color.z, color.w);
}
public override void drawString(float x, float y, string s, Color4f color)
{
_stringData.Add(new StringData(x, y, s, color));
}
public override void drawSolidPolygon(Vec2[] vertices, int count, Color4f color)
{
DrawSolidPolygon(vertices, count, color, true);
}
public override void drawSolidCircle(Vec2 center, float radius, Vec2 axis, Color4f color)
{
int segments = 16;
double increment = Math.PI * 2.0 / (double)segments;
double theta = 0.0;
Color colorFill = new Color(color.x,color.y, color.z) * 0.5f;
Vector2 v0 = new Vector2(center.x, center.y) + radius * new Vector2((float)Math.Cos(theta), (float)Math.Sin(theta));
theta += increment;
for (int i = 1; i < segments - 1; i++)
{
Vector2 v1 = new Vector2(center.x, center.y) + radius * new Vector2((float)Math.Cos(theta), (float)Math.Sin(theta));
Vector2 v2 = new Vector2(center.x, center.y) + radius * new Vector2((float)Math.Cos(theta + increment), (float)Math.Sin(theta + increment));
_vertsFill[_fillCount * 3].Position = new Vector3(v0, 0.0f);
_vertsFill[_fillCount * 3].Color = colorFill;
_vertsFill[_fillCount * 3 + 1].Position = new Vector3(v1, 0.0f);
_vertsFill[_fillCount * 3 + 1].Color = colorFill;
_vertsFill[_fillCount * 3 + 2].Position = new Vector3(v2, 0.0f);
_vertsFill[_fillCount * 3 + 2].Color = colorFill;
_fillCount++;
theta += increment;
}
drawCircle(center, radius, color);
if (axis != zero)
drawSegment(center, center.add(axis).mul(radius), color);
}
/**
* Draw a solid circle.
*
* @param center
* @param radius
* @param axis
* @param color
*/
public abstract void drawSolidCircle(Vec2 center, float radius, Vec2 axis, Color4f color);
/**
* @see org.jbox2d.testbed.framework.TestbedTest#step(org.jbox2d.testbed.framework.TestbedSettings)
*/
public override void step(TestbedSettings settings)
{
base.step(settings);
PolyShapesCallback callback = new PolyShapesCallback(getWorld().getPool());
callback.m_circle.m_radius = 2.0f;
callback.m_circle.m_p.set(0.0f, 2.1f);
callback.m_transform.setIdentity();
callback.debugDraw = getDebugDraw();
AABB aabb = new AABB();
callback.m_circle.computeAABB(aabb, callback.m_transform, 0);
getWorld().queryAABB(callback, aabb);
Color4f color = new Color4f(0.4f, 0.7f, 0.8f);
getDebugDraw().drawCircle(callback.m_circle.m_p, callback.m_circle.m_radius, color);
addTextLine("Press 1-5 to drop stuff");
addTextLine("Press 'a' to (de)activate some bodies");
addTextLine("Press 'd' to destroy a body");
addTextLine("Up to 30 bodies in the target circle are highlighted");
}
/**
* Draw a solid closed polygon provided in CCW order.
*
* @param vertices
* @param vertexCount
* @param color
*/
public abstract void drawSolidPolygon(Vec2[] vertices, int vertexCount, Color4f color);
public override void drawPoint(Vec2 p, float size, Color4f color)
{
Vec2[] verts = new Vec2[4];
float hs = size / 2.0f;
verts[0] = p.add(new Vec2(-hs, -hs));
verts[1] = p.add(new Vec2(hs, -hs));
verts[2] = p.add(new Vec2(hs, hs));
verts[3] = p.add(new Vec2(-hs, hs));
DrawSolidPolygon(verts, 4, color, true);
}
public void drawString(Vec2 pos, string s, Color4f color)
{
drawString(pos.x, pos.y, s, color);
}
private void drawShape(Fixture fixture, Transform xf, Color4f color, bool wireframe)
{
switch (fixture.getType())
{
case ShapeType.CIRCLE:
{
CircleShape circle = (CircleShape) fixture.getShape();
// Vec2 center = Mul(xf, circle.m_p);
Transform.mulToOutUnsafe(xf, circle.m_p, ref center);
float radius = circle.m_radius;
xf.q.getXAxis(axis);
if (fixture.getUserData() != null && fixture.getUserData().Equals(LIQUID_INT))
{
Body b = fixture.getBody();
liquidOffset.set(b.m_linearVelocity);
float linVelLength = b.m_linearVelocity.length();
if (averageLinearVel == -1)
{
averageLinearVel = linVelLength;
}
else
{
averageLinearVel = .98f*averageLinearVel + .02f*linVelLength;
}
liquidOffset.mulLocal(liquidLength/averageLinearVel/2);
circCenterMoved.set(center);
circCenterMoved.addLocal(liquidOffset);
center.subLocal(liquidOffset);
m_debugDraw.drawSegment(center, circCenterMoved, liquidColor);
return;
}
if (wireframe)
{
m_debugDraw.drawCircle(center, radius, axis, color);
}
else
{
m_debugDraw.drawSolidCircle(center, radius, axis, color);
}
}
break;
case ShapeType.POLYGON:
{
PolygonShape poly = (PolygonShape) fixture.getShape();
int vertexCount = poly.m_count;
Debug.Assert(vertexCount <= Settings.maxPolygonVertices);
Vec2[] vertices = tlvertices.get(Settings.maxPolygonVertices);
for (int i = 0; i < vertexCount; ++i)
{
// vertices[i] = Mul(xf, poly.m_vertices[i]);
Transform.mulToOutUnsafe(xf, poly.m_vertices[i], ref vertices[i]);
}
if (wireframe)
{
m_debugDraw.drawPolygon(vertices, vertexCount, color);
}
else
{
m_debugDraw.drawSolidPolygon(vertices, vertexCount, color);
}
}
break;
case ShapeType.EDGE:
{
EdgeShape edge = (EdgeShape) fixture.getShape();
Transform.mulToOutUnsafe(xf, edge.m_vertex1, ref v1);
Transform.mulToOutUnsafe(xf, edge.m_vertex2, ref v2);
m_debugDraw.drawSegment(v1, v2, color);
}
break;
case ShapeType.CHAIN:
{
ChainShape chain = (ChainShape) fixture.getShape();
int count = chain.m_count;
Vec2[] vertices = chain.m_vertices;
Transform.mulToOutUnsafe(xf, vertices[0], ref v1);
for (int i = 1; i < count; ++i)
{
Transform.mulToOutUnsafe(xf, vertices[i], ref v2);
m_debugDraw.drawSegment(v1, v2, color);
m_debugDraw.drawCircle(v1, 0.05f, color);
v1.set(v2);
}
}
break;
default:
break;
}
}
private void DrawFixture(Fixture fixture)
{
Color4f color = new Color4f(0.95f, 0.95f, 0.6f);
Transform xf = fixture.getBody().getTransform();
switch (fixture.getType())
{
case ShapeType.CIRCLE:
{
CircleShape circle = (CircleShape) fixture.getShape();
Vec2 center = Transform.mul(xf, circle.m_p);
float radius = circle.m_radius;
debugDraw.drawCircle(center, radius, color);
}
break;
case ShapeType.POLYGON:
{
PolygonShape poly = (PolygonShape) fixture.getShape();
int vertexCount = poly.m_count;
Debug.Assert(vertexCount <= Settings.maxPolygonVertices);
Vec2[] vertices = new Vec2[Settings.maxPolygonVertices];
for (int i = 0; i < vertexCount; ++i)
{
vertices[i] = Transform.mul(xf, poly.m_vertices[i]);
}
debugDraw.drawPolygon(vertices, vertexCount, color);
}
break;
default:
break;
}
}
public override void step(TestbedSettings settings)
{
m_rayActor = null;
for (int i = 0; i < _e_actorCount; ++i)
{
m_actors[i].fraction = 1.0f;
m_actors[i].overlap = false;
}
if (m_automated == true)
{
int actionCount = MathUtils.max(1, _e_actorCount >> 2);
for (int i = 0; i < actionCount; ++i)
{
Action();
}
}
Query();
RayCast();
Vec2[] vecs = vecPool.get(4);
for (int i = 0; i < _e_actorCount; ++i)
{
Actor actor = m_actors[i];
if (actor.proxyId == -1)
continue;
Color4f c = new Color4f(0.9f, 0.9f, 0.9f);
if (actor == m_rayActor && actor.overlap)
{
c.set(0.9f, 0.6f, 0.6f);
}
else if (actor == m_rayActor)
{
c.set(0.6f, 0.9f, 0.6f);
}
else if (actor.overlap)
{
c.set(0.6f, 0.6f, 0.9f);
}
actor.aabb.getVertices(vecs);
getDebugDraw().drawPolygon(vecs, 4, c);
}
Color4f c2 = new Color4f(0.7f, 0.7f, 0.7f);
m_queryAABB.getVertices(vecs);
getDebugDraw().drawPolygon(vecs, 4, c2);
getDebugDraw().drawSegment(m_rayCastInput.p1, m_rayCastInput.p2, c2);
Color4f c1 = new Color4f(0.2f, 0.9f, 0.2f);
Color4f c3 = new Color4f(0.9f, 0.2f, 0.2f);
getDebugDraw().drawPoint(m_rayCastInput.p1, 6.0f, c1);
getDebugDraw().drawPoint(m_rayCastInput.p2, 6.0f, c3);
if (m_rayActor != null)
{
Color4f cr = new Color4f(0.2f, 0.2f, 0.9f);
m_rayCastInput.p2.sub(m_rayCastInput.p1);
m_rayCastInput.p2.mulLocal(m_rayActor.fraction);
m_rayCastInput.p2.addLocal(m_rayCastInput.p1);
Vec2 p = m_rayCastInput.p2;
getDebugDraw().drawPoint(p, 6.0f, cr);
}
++m_stepCount;
if (settings.getSetting(TestbedSettings.DrawTree).enabled)
{
m_tree.drawTree(getDebugDraw());
}
getDebugDraw().drawString(5, 30,
"(c)reate proxy, (d)estroy proxy, (a)utomate", Color4f.WHITE);
}
