public void UpdateWordRotation()
{
if (orientationButton != null)
{
rotationWholeWord = orientationButton.currentRotation;
}
if (rotationWholeWord != 0.0f)
{
//Globals.g_main.SetGLMatrixMode(GL_MODELVIEW);
//glLoadIdentity();
//glScalef(Constants.kScaleForShorts, Constants.kScaleForShorts, 0.0f);
//glPushMatrix();
float roatation = rotationWholeWord;
float yThing = Globals.g_world.screenHeight;
float x = position.x;
float y = position.y;
if (Globals.deviceIPad)
{
x *= 2.0f;
x += 64.0f;
y *= 2.0f;
}
CGPoint tempWordPos = Utilities.CGPointMake(x, y);
CGPoint vectorToBasePos = Utilities.CGPointMake(tempWordPos.x, yThing - tempWordPos.y);
float baseAngle = Constants.PI_ - Utilities.GetAngleFromXYP1(vectorToBasePos.x, vectorToBasePos.y);
CGPoint positionWas = tempWordPos;
float distance = Utilities.GetDistanceP1(Utilities.CGPointMake(0, yThing), positionWas);
CGPoint newPosVec = Utilities.GetVectorFromAngle(baseAngle + roatation);
newPosVec.x *= distance;
newPosVec.y *= distance;
CGPoint positionNow = newPosVec;
positionNow.y = -positionNow.y;
CGPoint diff;
diff.x = positionNow.x - positionWas.x;
diff.y = positionNow.y - (yThing - positionWas.y);
//glRotatef((roatation) * (360.0 / (Constants.TWO_PI)), 0, 0, 1);
//glTranslatef(diff.x * Constants.kScreenMultiplierForShorts, diff.y * Constants.kScreenMultiplierForShorts, 0.0f);
CGPoint orientationButtonPos = Utilities.CGPointMake((orientationButton.myButton).position.x, (orientationButton.myButton).position.y);
if (Globals.deviceIPad)
{
orientationButtonPos.x *= 2.0f;
orientationButtonPos.x += 64.0f;
orientationButtonPos.y *= 2.0f;
}
CGPoint startOffset = Utilities.CGPointMake(tempWordPos.x - orientationButtonPos.x, tempWordPos.y - orientationButtonPos.y);
float startAngle = Utilities.GetAngleFromXYNewP1(startOffset.x, startOffset.y);
float offsetLength = Utilities.GetDistanceP1(Utilities.CGPointMake(0, 0), startOffset);
CGPoint normalAngle = Utilities.GetVectorFromAngleNew(startAngle - roatation);
normalAngle.x *= offsetLength;
normalAngle.y *= offsetLength;
CGPoint offset;
offset.x = startOffset.x - normalAngle.x;
offset.y = startOffset.y - normalAngle.y;
//glTranslatef(-offset.x * 20.0f, offset.y * 20.0f, 0.0f);
}
}
bool CheckStartSkid()
{
if (inFlock)
{
return(false);
}
if (timeTilCanSkidAgain > 0.0f)
{
timeTilCanSkidAgain -= Constants.kFrameRate;
return(false);
}
const float kExtrapFrames = 50.0f;
CGPoint nowSpeed = myPig.GetActualSpeed();
CGPoint extrapolatedPosition = Utilities.CGPointMake(myPig.position.x + (nowSpeed.x * kExtrapFrames), myPig.position.y + (nowSpeed.y * kExtrapFrames));
float yDistInFront = extrapolatedPosition.y - myPig.position.y;
if (yDistInFront < 700.0f)
{
return(false);
}
int whichTargetPoint = this.GetTargetPointAtBackwards(myPig.position.y);
if (whichTargetPoint == -1)
{
return(false);
}
CGPoint nowTargetPos = Utilities.CGPointMake((float)racingLine.GetPoint(whichTargetPoint).x, (float)racingLine.GetPoint(whichTargetPoint).y);
float distSqr = Utilities.GetSqrDistanceP1(myPig.position, nowTargetPos);
const float kMinSqrDistForStart = 700.0f;
if (distSqr > kMinSqrDistForStart)
{
return(false);
}
CGPoint targetDirection = Utilities.CGPointMake((float)racingLine.GetPoint(whichTargetPoint + 1).x - nowTargetPos.x, (float)racingLine.GetPoint(
whichTargetPoint + 1).y - nowTargetPos.y);
float targetAngle = Utilities.GetAngleFromXYNewP1(targetDirection.x, targetDirection.y);
float playerAngleNow = myPig.moveAngle;
if (Utilities.GetABS(targetAngle - playerAngleNow) > 0.18f)
{
return(false);
}
whichTargetPoint = this.GetTargetPointAt(extrapolatedPosition.y);
if (whichTargetPoint == -1)
{
return(false);
}
CGPoint diff = Utilities.CGPointMake((float)racingLine.GetPoint(whichTargetPoint).x - extrapolatedPosition.x, (float)racingLine.GetPoint(
whichTargetPoint).y - extrapolatedPosition.y);
skidDirection = Utilities.CGPointMake(nowSpeed.x, nowSpeed.y);
float numAccelerationAdditions = (kExtrapFrames * (kExtrapFrames + 1.0f)) * 0.5f;
skidAcceleration = Utilities.CGPointMake(diff.x / numAccelerationAdditions, diff.y / numAccelerationAdditions);
float xAtEnd = nowSpeed.x + (skidAcceleration.x * kExtrapFrames);
float yAtEnd = nowSpeed.y + (skidAcceleration.y * kExtrapFrames);
float angleAtEnd = Utilities.GetAngleFromXYNewP1(xAtEnd, yAtEnd);
CGPoint endPointDir = Utilities.CGPointMake(((float)racingLine.GetPoint(whichTargetPoint).x - (float)racingLine.GetPoint(whichTargetPoint - 1).x), ((
float)racingLine.GetPoint(whichTargetPoint).y - (float)racingLine.GetPoint(whichTargetPoint - 1).y));
float angleAtEndPoint = Utilities.GetAngleFromXYNewP1(endPointDir.x, endPointDir.y);
if (Utilities.GetABS(angleAtEnd - angleAtEndPoint) > 0.18f)
{
return(false);
}
float yDisplay;
if (skidAcceleration.y >= 0.0f)
{
yDisplay = skidAcceleration.y;
}
else
{
yDisplay = 0.0f;
}
skidTarget = Utilities.CGPointMake((float)racingLine.GetPoint(whichTargetPoint).x, (float)racingLine.GetPoint(whichTargetPoint).y);
if (!this.IsThisSkidAGoodIdea())
{
return(false);
}
skidDisplayAngle = Utilities.CGPointMake(skidAcceleration.x, yDisplay);
skidding = true;
skidFrames = (int)kExtrapFrames;
return(true);
}
