void FixedUpdate()
{
if (moving && gunBallSpawned)
{
if (initial)
{
initial = false;
if (xDifference == 0)
{
//rotates the cannon by the calculated angle
boat.transform.rotation = Quaternion.Euler(-angle, 0, 0);
}
else
{
//gamma/alpha rotation of the cannon
boat.transform.rotation = Quaternion.Euler(-angle, PhysicsCalculator.toDegrees(gamma), 0);
}
}
if (xDifference == 0)
{
angle = PhysicsCalculator.calculateTheta(range, gunBallVelocity) * 180 / Mathf.PI;
newVx = PhysicsCalculator.calculateVelocity(oldVx, 0, fixedTime);
newVy = PhysicsCalculator.calculateVelocity(oldVy, ACCELERATION, fixedTime);
//update positions accordingly
newDx = PhysicsCalculator.calculateDistance(currentDx, 0, newVx, fixedTime);
newDy = PhysicsCalculator.calculateDistance(currentDy, ACCELERATION, newVy, fixedTime);
if (gunball.transform.position.y - target.transform.position.y <= 0.05 && numUpdates > 0)
{
moving = false;
timeText.text = "Time: " + ((numUpdates + 1) * fixedTime) + " seconds";
}
else
{
yDisplacement = newVy * fixedTime;
zDisplacement = newVx * fixedTime;
if (target.transform.position.z < boat.transform.position.z)
{
gunball.transform.position = new Vector3(gunball.transform.position.x, gunball.transform.position.y + yDisplacement, gunball.transform.position.z - zDisplacement);
}
else
{
gunball.transform.position = new Vector3(gunball.transform.position.x, gunball.transform.position.y + yDisplacement, gunball.transform.position.z + zDisplacement);
}
// if (lastMarker + buffer < numUpdates) {
// lastMarker = numUpdates;
// Object.Instantiate(flightMarker, new Vector3(gunball.transform.position.x, gunball.transform.position.y + yDisplacement, gunball.transform.position.z + zDisplacement), Quaternion.identity);
// }
}
}
else
{
if (gunball.transform.position.y - target.transform.position.y <= 0.05 && numUpdates > 0)
{
moving = false;
timeText.text = "Time: " + ((numUpdates + 1) * fixedTime) + " seconds";
}
else
{
//run lab 4
newVx = PhysicsCalculator.calculateVelocity(oldVx, 0, fixedTime);
newVy = PhysicsCalculator.calculateYVelocityGamma(oldVy, -ACCELERATION, fixedTime);
newVz = PhysicsCalculator.calculateVelocity(oldVz, 0, fixedTime);
newDx = PhysicsCalculator.calculateXPosition(currentDx, oldVx, angle, gamma, fixedTime);
newDy = PhysicsCalculator.calculateYPosition(currentDy, oldVy, -ACCELERATION, fixedTime);
newDz = PhysicsCalculator.calculateZPosition(oldDz, oldVz, angle, PhysicsCalculator.toDegrees(gamma), fixedTime);
if (target.transform.position.x < boat.transform.position.x && target.transform.position.z < boat.transform.position.z)
{
gunball.transform.position = new Vector3(gunball.transform.position.x - newVx * fixedTime, gunball.transform.position.y + newVy * fixedTime, gunball.transform.position.z - newVz * fixedTime);
}
else if (target.transform.position.x < boat.transform.position.x)
{
gunball.transform.position = new Vector3(gunball.transform.position.x - newVx * fixedTime, gunball.transform.position.y + newVy * fixedTime, gunball.transform.position.z + newVz * fixedTime);
}
else if (target.transform.position.z < boat.transform.position.z)
{
gunball.transform.position = new Vector3(gunball.transform.position.x + newVx * fixedTime, gunball.transform.position.y + newVy * fixedTime, gunball.transform.position.z - newVz * fixedTime);
}
else
{
gunball.transform.position = new Vector3(gunball.transform.position.x + newVx * fixedTime, gunball.transform.position.y + newVy * fixedTime, gunball.transform.position.z + newVz * fixedTime);
}
}
}
omegaF = PhysicsCalculator.calculateOmegaFinal(omegaI, alphaI, (numUpdates + 1) * fixedTime);
theta = PhysicsCalculator.calculateThetaFinal(omegaI, alphaI, (numUpdates + 1) * fixedTime);
angularDisplacement = PhysicsCalculator.calculateAngularDisplacement(theta, omegaF, alphaI, fixedTime);
totalAngleDisplacement += angularDisplacement;
//rotate the ball
gunball.transform.Rotate(new Vector3(-PhysicsCalculator.toDegrees(angularDisplacement), 0, 0));
}
if (moving && gunBallSpawned)
{
numUpdates++;
//update UI
gammaText.text = "Angular Velocity: " + omegaF;
angleText.text = "Acceleration: " + theta;
timeText.text = "Time: " + ((numUpdates + 1) * fixedTime) + " seconds";
updatesText.text = "Updates: " + (numUpdates + 1) + " frames";
oldVx = newVx;
oldVy = newVy;
oldVz = newVz;
currentDx = newDx;
currentDy = newDy;
oldDz = newDz;
}
}