public CCRotateAroundToState(CCRotateAroundTo action, CCNode target)
: base(action, target)
{
DistanceAngle = action.DistanceAngle;
Origin = action.Origin;
StartPosition = target.Position;
RotationDirection = action.RotationDirection;
offsetX = StartPosition.X - Origin.X;
offsetY = StartPosition.Y - Origin.Y;
// Calculate the Starting Angle of the target in relation to the Origin in which it is to rotate
// Math.Atan2 returns the mathematical angle which is counter-clockwise [-Math.PI, +Math.PI]
StartAngle = CCMathHelper.ToDegrees((float)Math.Atan2(offsetY, offsetX));
// Map value [0,360]
StartAngle = (StartAngle + 360) % 360;
// Now we work out how far we actually have to rotate
DiffAngle = DistanceAngle - StartAngle;
// Map value [0,360] and take into consideration the direction of rotation - CCW or CW
DiffAngle = (DiffAngle + 360 * RotationDirection) % 360;
theta = CCMathHelper.ToRadians(DiffAngle);
}
public void UpdateBodyTransform()
{
if (PhysicsBody != null)
{
b2Vec2 pos = PhysicsBody.Position;
float x = pos.x * ptmRatio;
float y = pos.y * ptmRatio;
if (IgnoreAnchorPointForPosition)
{
x += AnchorPointInPoints.X * ptmRatio;
y += AnchorPointInPoints.Y * ptmRatio;
}
// Make matrix
float radians = PhysicsBody.Angle;
if (radians != 0)
{
Rotation = CCMathHelper.ToDegrees(-radians);
}
PositionX = x;
PositionY = y;
}
}
public virtual void UpdateVelocity(CCPoint point)
{
// Calculate distance and angle from the center.
float dx = point.X - PositionX;
float dy = point.Y - PositionY;
dycache = dy;
float dSq = dx * dx + dy * dy;
if (dSq <= DeadRadiusSq)
{
Velocity = CCPoint.Zero;
Degrees = 0.0f;
StickPosition = Center;
return;
}
float angle = (float)Math.Atan2(dy, dx); // in radians
if (angle < 0)
{
angle += CCMathHelper.TwoPi;
}
float cosAngle;
float sinAngle;
if (isDPad)
{
float anglePerSector = 360.0f / CCMathHelper.ToRadians(NumberOfDirections); // NumberOfDirections * ((float)Math.PI / 180.0f);
angle = (float)Math.Round(angle / anglePerSector) * anglePerSector;
}
cosAngle = CCMathHelper.Cos(angle);
sinAngle = CCMathHelper.Sin(angle);
// NOTE: Velocity goes from -1.0 to 1.0.
if (dSq > JoystickRadiusSq || isDPad)
{
dx = cosAngle * joystickRadius;
dy = sinAngle * joystickRadius;
}
Velocity = new CCPoint(dx / joystickRadius, dy / joystickRadius);
Degrees = CCMathHelper.ToDegrees(angle);
// Update the thumb's position
var newLoc = new CCPoint(dx + ContentSize.Width / 2, dy + ContentSize.Height / 2);
StickPosition = newLoc;
}
public void HandleInput(CCPoint touchPoint)
{
desiredLocation = touchPoint;
float differenceY = touchPoint.Y - this.PositionY;
float differenceX = touchPoint.X - this.PositionX;
float angleInDegrees = -1 * CCMathHelper.ToDegrees(
(float)System.Math.Atan2(differenceY, differenceX));
var rotateAction = new CCRotateTo(0.3f, angleInDegrees);
this.AddAction(rotateAction);
var moveAction = new CCMoveTo(1f, touchPoint);
CCAction easingAction = new CCEaseSineInOut(moveAction);
this.AddAction(easingAction);
}
public void UpdateBodyTransform()
{
b2Vec2 pos = PhysBody.Position;
float x = pos.x * App.PTM_RATIO;
float y = pos.y * App.PTM_RATIO;
if (IgnoreAnchorPointForPosition)
{
x += AnchorPointInPoints.X * App.PTM_RATIO;
y += AnchorPointInPoints.Y * App.PTM_RATIO;
}
// Make matrix
float radians = PhysBody.Angle;
if (Math.Abs(radians) > EPSILON)
{
Rotation = CCMathHelper.ToDegrees(-radians);
}
PositionX = x;
PositionY = y;
}
void HandleMoveCircle(CCTouch touch)
{
const float timeToTake = 1.5f; // in seconds
CCFiniteTimeAction coreAction = null;
// By default all actions will be added directly to the
// root node - it has values for Position, Scale, and Rotation.
CCNode nodeToAddTo = drawNodeRoot;
switch (VariableOptions [currentVariableIndex])
{
case "Position":
coreAction = new CCMoveTo(timeToTake, touch.Location);
break;
case "Scale":
var distance = CCPoint.Distance(touch.Location, drawNodeRoot.Position);
var desiredScale = distance / DefaultCircleRadius;
coreAction = new CCScaleTo(timeToTake, desiredScale);
break;
case "Rotation":
float differenceY = touch.Location.Y - drawNodeRoot.PositionY;
float differenceX = touch.Location.X - drawNodeRoot.PositionX;
float angleInDegrees = -1 * CCMathHelper.ToDegrees(
(float)Math.Atan2(differenceY, differenceX));
coreAction = new CCRotateTo(timeToTake, angleInDegrees);
break;
case "LineWidth":
coreAction = new LineWidthAction(timeToTake, touch.Location.X / 40f);
// The LineWidthAction is a special action designed to work only on
// LineNode instances, so we have to set the nodeToAddTo to the lineNode:
nodeToAddTo = lineNode;
break;
}
CCAction easing = null;
switch (EasingOptions [currentEasingIndex])
{
case "CCEaseBack":
if (currentInOutIndex == 0)
{
easing = new CCEaseBackOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseBackIn(coreAction);
}
else
{
easing = new CCEaseBackInOut(coreAction);
}
break;
case "CCEaseBounce":
if (currentInOutIndex == 0)
{
easing = new CCEaseBounceOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseBounceIn(coreAction);
}
else
{
easing = new CCEaseBounceInOut(coreAction);
}
break;
case "CCEaseElastic":
if (currentInOutIndex == 0)
{
easing = new CCEaseElasticOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseElasticIn(coreAction);
}
else
{
easing = new CCEaseElasticInOut(coreAction);
}
break;
case "CCEaseExponential":
if (currentInOutIndex == 0)
{
easing = new CCEaseExponentialOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseExponentialIn(coreAction);
}
else
{
easing = new CCEaseExponentialInOut(coreAction);
}
break;
case "CCEaseSine":
if (currentInOutIndex == 0)
{
easing = new CCEaseSineOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseSineIn(coreAction);
}
else
{
easing = new CCEaseSineInOut(coreAction);
}
break;
}
nodeToAddTo.AddAction(easing ?? coreAction);
}
public void setRotationFromVector()
{
_targetRotation = CCMathHelper.ToDegrees((float)Math.Atan2(-_vector.Y, _vector.X));
//this->setTargetRotation(CC_RADIANS_TO_DEGREES( atan2(-_vector.y, _vector.x) ) );
}
private void HandleMoveCircle(CCTouch touch)
{
const float timeToTake = 1.5f; // in seconds
CCFiniteTimeAction coreAction = null;
CCNode nodeToAddTo = drawNodeRoot;
switch (VariableOptions [currentVariableIndex])
{
case "Position":
coreAction = new CCMoveTo(timeToTake, touch.Location);
break;
case "Scale":
var distance = CCPoint.Distance(touch.Location, drawNodeRoot.Position);
var desiredScale = distance / DefaultCircleRadius;
coreAction = new CCScaleTo(timeToTake, desiredScale);
break;
case "Rotation":
float differenceY = touch.Location.Y - drawNodeRoot.PositionY;
float differenceX = touch.Location.X - drawNodeRoot.PositionX;
float angleInDegrees = -1 * CCMathHelper.ToDegrees(
(float)System.Math.Atan2(differenceY, differenceX));
coreAction = new CCRotateTo(timeToTake, angleInDegrees);
break;
case "LineWidth":
coreAction = new LineWidthAction(timeToTake, touch.Location.X / 40.0f);
nodeToAddTo = lineNode;
break;
}
CCAction easing = null;
switch (EasingOptions [currentEasingIndex])
{
case "<None>":
// no easing, do nothing, it will be handled below
break;
case "CCEaseBack":
if (currentInOutIndex == 0)
{
easing = new CCEaseBackOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseBackIn(coreAction);
}
else
{
easing = new CCEaseBackInOut(coreAction);
}
break;
case "CCEaseBounce":
if (currentInOutIndex == 0)
{
easing = new CCEaseBounceOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseBounceIn(coreAction);
}
else
{
easing = new CCEaseBounceInOut(coreAction);
}
break;
case "CCEaseElastic":
if (currentInOutIndex == 0)
{
easing = new CCEaseElasticOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseElasticIn(coreAction);
}
else
{
easing = new CCEaseElasticInOut(coreAction);
}
break;
case "CCEaseExponential":
if (currentInOutIndex == 0)
{
easing = new CCEaseExponentialOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseExponentialIn(coreAction);
}
else
{
easing = new CCEaseExponentialInOut(coreAction);
}
break;
case "CCEaseSine":
if (currentInOutIndex == 0)
{
easing = new CCEaseSineOut(coreAction);
}
else if (currentInOutIndex == 1)
{
easing = new CCEaseSineIn(coreAction);
}
else
{
easing = new CCEaseSineInOut(coreAction);
}
break;
}
if (easing != null)
{
nodeToAddTo.AddAction(easing);
}
else
{
nodeToAddTo.AddAction(coreAction);
}
}