gameObject

Class StationaryPlatform

java.lang.Object

gameObject.GameObject

gameObject.StageFeature

gameObject.StationaryPlatform

Direct Known Subclasses:

Barrier, CurvedPlatform, InclinePlatform, LoopPlatform, RectPlatform, SCurvePlatform

public abstract class StationaryPlatform
extends StageFeature

Represents all the stage features that do not move

Field Summary

Fields inherited from class gameObject.GameObject

degree, gravity, GRAVITY, h, TURN_ON_ANIM, w, x, xDir, y, yDir

Constructor Summary

Constructors

Constructor and Description
StationaryPlatform() The default constructor
StationaryPlatform(double x, double y, double w, double h, int xDir, int yDir) The general constructor used to create the stationary stage features

Method Summary

Modifier and Type	Method and Description
double	calculateAngle(double bezierT, double[] curveX, double[] curveY) Calculates the angle of the slope of a Bezier curve at a certain point
double	calculateT(GameObject gameObject, double[] curveX, int xDir) Calculates the value of 't' in a Bezier curve 't' is the independent variable of the Bezier curve equation that ranges from 0-1
abstract java.awt.geom.Line2D	getContactLine() Represents a collision detection line for the platform
abstract void	interact(GameObject gameObject) Describes the interation between the platform and a game object
abstract void	paint(java.awt.Graphics g) Paints the platform
void	update() Updates the platform

Methods inherited from class gameObject.GameObject

changeXDir, changeYDir

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StationaryPlatform

public StationaryPlatform()

The default constructor

StationaryPlatform

public StationaryPlatform(double x,
                          double y,
                          double w,
                          double h,
                          int xDir,
                          int yDir)

The general constructor used to create the stationary stage features

Parameters:

x - The x coordinate of the object

y - The y coordinate of the object

w - The width of the object

h - The height of the object

xDir - The x direction of the object

yDir - The y direction of the object

Method Detail

getContactLine

public abstract java.awt.geom.Line2D getContactLine()

Represents a collision detection line for the platform

Specified by:

getContactLine in class StageFeature

Returns:

A collision detection line

paint

public abstract void paint(java.awt.Graphics g)

Paints the platform

Specified by:

paint in class StageFeature

Parameters:

g - An instance of the Graphics object

update

public void update()

Updates the platform

Specified by:

update in class StageFeature

interact

public abstract void interact(GameObject gameObject)

Describes the interation between the platform and a game object

Specified by:

interact in class StageFeature

Parameters:

gameObject - The game object that the platform is interacting with

calculateT

public double calculateT(GameObject gameObject,
                         double[] curveX,
                         int xDir)

Calculates the value of 't' in a Bezier curve 't' is the independent variable of the Bezier curve equation that ranges from 0-1

Parameters:

gameObject - The object interacting with the Bezier curve

curveX - The array storing the x coordinates of the control points of a bezier curve Sonic is interacting with

xDir - The x direction of the curve

Returns:

The value of t

calculateAngle

public double calculateAngle(double bezierT,
                             double[] curveX,
                             double[] curveY)

Calculates the angle of the slope of a Bezier curve at a certain point

Parameters:

bezierT - The current 't' value of the Bezier curve

curveX - The array storing the x coordinates of the control points of a bezier curve

curveY - The array storing the y coordinates of the control points of a bezier curve

Returns:

The angle of the slope at a certain point