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109 lines
2.3 KiB
109 lines
2.3 KiB
package uwstout.courses.cs144.labs.lab5;
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/**
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* Represents a projectile being launched into the air at a specific velocity,
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* and at a specific angle. Allows the user to calculate the distance traveled
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* by the projectile at a particular time, as well as the maximum distance.
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*
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* @author Brett Bender
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* @version 2022.10.26
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*/
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public class Projectile {
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/**
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* The acceleration due to gravity
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*/
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private static final double G = 9.8;
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private static final int DEFAULT_ANGLE = 45;
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private double velocity;
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private int angle;
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/**
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* Constructs a new Projectile with a given velocity and angle.
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*
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* @param nvelocity The velocity of the projectile
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* @param nangle The angle of the projectile
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*/
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public Projectile(double nvelocity, int nangle) {
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velocity = nvelocity;
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angle = nangle;
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}
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/**
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* Constructs a new Projectile with a given velocity. Defaults angle to
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* 45deg.
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*
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* @param nvelocity The velocity of the projectile
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*/
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public Projectile(double nvelocity) {
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velocity = nvelocity;
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angle = DEFAULT_ANGLE;
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}
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/**
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* Constructs a new Projectile that is a copy of the specified Projectile.
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*
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* @param other The projectile that is being copied
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*/
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public Projectile(Projectile other) {
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velocity = other.velocity;
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angle = other.angle;
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}
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/**
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* Calculates the distance traveled at a specified time.
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*
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* @param time The time (in seconds)
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* @return The distance traveled
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*/
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public double getDistance(double time) {
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return velocity * time * Math.cos(Math.toRadians(angle));
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}
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/**
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* Calculates the maximum distance the projectile may travel.
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*
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* @return The maximum distance
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*/
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public double getMaximumDistance() {
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return (velocity * velocity / G) * Math.sin(2 * Math.toRadians(angle));
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}
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/**
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* Get the velocity of the projectile.
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*
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* @return The velocity of the projectile
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*/
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public double getVelocity() {
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return velocity;
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}
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/**
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* Get the angle of the projectile.
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*
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* @return The angle of the projectile
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*/
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public int getAngle() {
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return angle;
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}
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/**
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* Set the velocity of the projectile
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*
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* @param nvelocity The new velocity
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*/
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public void setVelocity(double nvelocity) {
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velocity = nvelocity;
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}
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/**
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* Set the angle of the projectile
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*
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* @param nangle The new angle
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*/
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public void setAngle(int nangle) {
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angle = nangle;
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}
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}
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