GammaCentauriLoop

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tipgame.game.gammacentauri
Class GammaCentauriLoop

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Panel
              java.applet.Applet
                  javax.swing.JApplet
                      tipgame.GameWindow
                          tipgame.FrameAdvancer
                              tipgame.GameLoop
                                  tipgame.game.gammacentauri.GammaCentauriLoop

All Implemented Interfaces:: java.awt.event.ActionListener, java.awt.event.WindowStateListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible, javax.swing.RootPaneContainer

public class GammaCentauriLoop
extends tipgame.GameLoop
extends tipgame.GameLoop

The loop that powers Gamma Centauri.

Author:: Tom James
See Also:: Serialized Form

Nested Class Summary
`(package private) class`	`GammaCentauriLoop.auxProcess` Implements the methods that are required for each level.
`(package private) class`	`GammaCentauriLoop.StartSideMovement` Used to move the enemies when they get to the side of the screen.
`(package private) class`	`GammaCentauriLoop.TimeUpdater` Updates the timer every second.

Nested classes/interfaces inherited from class javax.swing.JApplet
`javax.swing.JApplet.AccessibleJApplet`

Nested classes/interfaces inherited from class java.applet.Applet
`java.applet.Applet.AccessibleApplet`

Nested classes/interfaces inherited from class java.awt.Panel
`java.awt.Panel.AccessibleAWTPanel`

Nested classes/interfaces inherited from class java.awt.Container
`java.awt.Container.AccessibleAWTContainer`

Nested classes/interfaces inherited from class java.awt.Component
`java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy`

Field Summary
`private boolean[]`	`alive` The array that stores whether each player is alive or not.
`static double`	`BONUS_MULTIPLIER` The number of points awarded to the player for each second under 60 times the wave number in which the wave is completed.
`private tipgame.Sprite[][]`	`bullet` The player bullets.
`static double`	`BULLET_SPEED_UPGRADE_MAGNITUDE` The amount by which a player's bullet speed is increased when a bullet speed upgrade is attained.
`private tipgame.game.gammacentauri.tracker.BulletTracker[][]`	`bulletTracker` The player bullet trackers.
`double[]`	`bulletVelocity` The array that holds the players' bullet velocities.
`private static java.net.URL`	`CLIP_FILE` The location of the sound to be played when an enemy is killed.
`private static java.net.URL`	`CLIP_FILE2` The location of the sound to be played when the player gets an upgrade.
`private static java.net.URL`	`CLIP_FILE3` The location of the sound to be played in between levels.
`private int[]`	`currentBullet` The current bullet that the player is firing.
`private int[]`	`currentBulletCount` The current amount of bullets that the player can have on the screen at one time.
`private long`	`desiredScore` The score required to clear each wave.
`static tipgame.Sprite[][]`	`enemy` The enemy sprites.
`static java.awt.geom.Rectangle2D.Double`	`ENEMY_BOX` The location and size of the box that defines the enemies' positions.
`static double`	`ENEMY_BULLET_VELOCITY` The velocity of the enemies' bullets.
`static double`	`ENEMY_BULLET_WIDTH` The width of the enemies' bullets.
`static double`	`ENEMY_HORIZONTAL_VELOCITY` The horizontal velocity of the enemies' ships.
`static double`	`ENEMY_MOVE_DOWN_TIME` The number of seconds that the enemies move down for each time one of them hits the edge of the screen.
`static double`	`ENEMY_SHOOT_PROBABILITY` The probability that an enemy will shoot every time frame.
`static int`	`ENEMY_TYPE_ONE_HEALTH` The amount of damage an enemy of type one can sustain before being killed.
`static double`	`ENEMY_TYPE_ONE_POINTS` The number of points awarded to the player for killing an enemy of type one.
`static double`	`ENEMY_TYPE_THREE_BULLET_VELOCITY` The velocity of the bullets of enemies of type three.
`static int`	`ENEMY_TYPE_THREE_HEALTH` The amount of damage an enemy of type three can sustain before being killed.
`static double`	`ENEMY_TYPE_THREE_POINTS` The number of points awarded to the player for killing an enemy of type three.
`static int`	`ENEMY_TYPE_TWO_HEALTH` The amount of damage an enemy of type two can sustain before being killed.
`static double`	`ENEMY_TYPE_TWO_POINTS` The number of points awarded to the player for killing an enemy of type two.
`static double`	`ENEMY_VERTICAL_VELOCITY` The vertical velocity of the enemies' ships.
`static double`	`ENEMY_WIDTH` The width of the enemies' ships.
`private tipgame.Sprite[][]`	`enemyBullet` The enemy bullets.
`private tipgame.game.gammacentauri.tracker.EnemyBulletTracker[][]`	`enemyBulletTracker` The enemy bullet trackers.
`private int[][][]`	`enemyGrid` The grid used to define enemy types and locations on the screen.
`private int[][]`	`enemyHealth` The health of the enemies.
`static tipgame.game.gammacentauri.tracker.EnemyTracker[][]`	`enemyTracker` The enemy trackers.
`private static double`	`EPSILON` Used to combat round-off errors.
`(package private) java.applet.AudioClip`	`impactClip` The sound to be played when an enemy is killed.
`private boolean`	`inBetweenLevels` Whether or not the player is currently in between waves.
`static double`	`INITAL_BULLET_VELOCITY` The initial velocity of the players' bullets.
`static int`	`INITIAL_BULLET_COUNT` The maximum number of bullets the player can have on the screen at one time.
`private int[]`	`laserDamage` The damage the player's laser deals to the enemies.
`static double`	`LEVEL_DELAY` The time (in seconds) in between levels.
`(package private) java.applet.AudioClip`	`levelClip` The sound to be played in between levels.
`static int`	`MAX_BULLET_COUNT` The maximum number of bullets the player can have on the screen at one time.
`static double`	`MAX_VELOCITY` The maximum velocity of the player's ship.
`(package private) java.applet.AudioClip`	`moneyClip` The sound to be played when the player gets an upgrade.
`static int`	`NUM_POSSIBLE_UPGRADES` The number of upgrades that are attainable.
`static double`	`PAR_TIME_PER_LEVEL` The number of seconds at which the player receieves no bonus points for completing the wave.
`static double`	`PLAYER_BULLET_WIDTH` The width of the player's bullets.
`private long[]`	`score` The player's current score.
`static java.awt.geom.Point2D.Double`	`SCORE_LOCATION` The location of the score.
`static double`	`SCORE_SIZE_X` The width of the score.
`private tipgame.sprite.StringSprite`	`scoreSprite` The sprite for the player's current score.
`static int`	`SHIELD_UPGRADE_MAGNITUDE` The amount by which the player's shields are increased when getting a shield upgrade.
`private int[]`	`shields` The player's current shields.
`static java.awt.geom.Point2D.Double`	`SHIELDS_LOCATION` The location of the shields.
`static double`	`SHIELDS_SIZE_X` The width of the shields sprite.
`private tipgame.sprite.StringSprite`	`shieldsSprite` The sprite for the player's current shields.
`static tipgame.Sprite[]`	`ship` The ship sprites.
`static double`	`SHIP_SIDE_LENGTH` The side length of the player's ship.
`static java.awt.geom.Point2D.Double`	`SHIP_START` The starting location of the player's ship.
`private tipgame.game.gammacentauri.tracker.ShipTracker[]`	`shipTracker` The ship trackers.
`private boolean[]`	`spread` The array that stores whether each player has the spread shot upgrade or not.
`static int`	`STARTING_LASER_DAMAGE` The amount of damage the player's laser does at the start of the game.
`static int`	`STARTING_SHIELDS` The amount of shields each player starts with.
`private double`	`timeOffset` Used to reset the timer when the game is restarted.
`private tipgame.sprite.StringSprite`	`timer` The timer sprite.
`static java.awt.geom.Point2D.Double`	`TIMER_LOCATION` The location of the timer.
`static double`	`TIMER_SIZE_X` The width of the timer.
`private tipgame.Sprite[][]`	`upgrade` The upgrade sprites.
`static double`	`UPGRADE_DROP_PROBABILITY` The probability that an upgrade will drop when an enemy is killed.
`static double`	`UPGRADE_VELOCITY` The velocity of the upgrades.
`static double`	`UPGRADE_WIDTH` The width of the upgrades.
`private int[][]`	`upgradeGrid` The array that stores the upgrades hidden within the enemies.
`private tipgame.game.gammacentauri.tracker.EnemyBulletTracker[][]`	`upgradeTracker` The upgrade trackers.
`private int`	`wave` The current wave the player is on.
`static java.awt.geom.Point2D.Double`	`WAVE_LOCATION` The location of the wave indicator.
`static double`	`WAVE_SIZE_X` The width of the wave indicator sprite.
`private tipgame.sprite.StringSprite`	`waveSprite` The wave indicator sprite.

Fields inherited from class tipgame.GameLoop
`messages, playerKeyboard, playerMouse, random, SEED`

Fields inherited from class tipgame.FrameAdvancer
`canvas, timeInterval`

Fields inherited from class tipgame.GameWindow
`frame, gameLoop, hasFrame, help`

Fields inherited from class javax.swing.JApplet
`accessibleContext, rootPane, rootPaneCheckingEnabled`

Fields inherited from class java.awt.Component
`BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT`

Fields inherited from interface java.awt.image.ImageObserver
`ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH`

Constructor Summary
`GammaCentauriLoop()` Constructs the game.

Method Summary
`void`	`addBullets()` Adds each bullet to the canvas.
`void`	`addEnemies()` Adds the enemy sprites to the canvas.
`void`	`addEnemyBullets()` Adds the enemy bullet sprites to the canvas.
`private void`	`addScore()` Adds the score to the canvas.
`private void`	`addShields()` Adds the shields sprite to the canvas.
`void`	`addShips()` Adds each ship to the canvas.
`private void`	`addTimer()` Adds the timer to the canvas.
`void`	`addUpgrades()` Adds the upgrade sprites to the canvas.
`private void`	`addWave()` Adds the wave indicator to the canvas.
`void`	`advanceFrame()` called repeatedly between every model update
`void`	`advanceLevel()` Advances to the next wave.
`void`	`checkEnemyBullets()` Checks the position of each enemy bullet and resets it if it goes off the canvas.
`void`	`checkWin()` Checks to see if the player has enough points to advance to the next level.
`void`	`fireBullets()` Fires a bullet if the player presses "/" and the player has bullets remaining.
`void`	`fireEnemyBullets()` Fires all of the enemy bullets that need to be fired.
`protected java.net.URL`	`getHelpURL()` this method must be overridden when extending the GameWindow.
`void`	`giveBonusPoints()` Gives bonus points to the player based on the time it took to complete the wave.
`void`	`handleCollisions()` Handles collisions between player bullets and enemies and between enemy bullets and the players.
`void`	`makeBullets()` Creates a number of bullets for each player equal to MAX_BULLET_COUNT.
`void`	`makeBulletTrackers()` Creates a tracker for each bullet.
`void`	`makeEnemies()` Creates enemies by reading enemyGrid[][][].
`void`	`makeEnemyBullets()` Creates a bullet for each enemy.
`void`	`makeEnemyBulletTrackers()` Creates a bullet tracker for each enemy bullet.
`void`	`makeEnemyHealth()` Assigns the appropriate amount of health to each enemy.
`void`	`makeEnemyTrackers()` Creates a tracker for each enemy.
`private void`	`makeScore()` Creates the string sprite and sets its scale and location.
`private void`	`makeShields()` Creates the shields sprite and sets its scale and location.
`void`	`makeShips()` Creates a ship for each player and sets its scale, location, and color.
`void`	`makeShipTrackers()` Creates a tracker for each ship.
`private void`	`makeSoundClips()` Creates the sounds clips.
`private void`	`makeTimer()` Creates the timer sprite and sets its scale and location.
`void`	`makeUpgradeGrid()` Constructs the grid that holds the upgrades hidden within each enemy.
`void`	`makeUpgrades()` Creates the upgrade sprites.
`void`	`makeUpgradeTrackers()` Creates the upgrade trackers.
`private void`	`makeWave()` Creates the wave indicator sprite and sets its scale and location.
`void`	`moveEnemies()` Changes the velocity of all of the enemies if one of them hits an edge of ENEMY_BOX.
`void`	`moveShips()` Changes the velocity of each ship based on the keyboard input.
`void`	`startGame()` starts game

Methods inherited from class tipgame.GameLoop
`connect, disconnect, getID, isMuted, isPaused, pauseToggle, postAdvanceFrame, sendMessage, setGameName, setNumberOfPlayers, setServerName, setSessionName, start, toggleAudible`

Methods inherited from class tipgame.FrameAdvancer
`cancelAlarm, clearAllAlarms, getCanvas, getScreenRefreshRate, getTime, refreshScreen, scheduleAbsolute, scheduleRelative, setCanvas, setMinimumModelFrameRate, updateModel`

Methods inherited from class tipgame.GameWindow
`actionPerformed, getDefaultSize, init, runAsApplication, setTitle, setUseFrame, stop, windowStateChanged`

Methods inherited from class javax.swing.JApplet
`addImpl, createRootPane, getAccessibleContext, getContentPane, getGlassPane, getJMenuBar, getLayeredPane, getRootPane, isRootPaneCheckingEnabled, paramString, remove, setContentPane, setGlassPane, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, update`

Methods inherited from class java.applet.Applet
`destroy, getAppletContext, getAppletInfo, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, getParameterInfo, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus`

Methods inherited from class java.awt.Panel
`addNotify`

Methods inherited from class java.awt.Container
add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

EPSILON

private static final double EPSILON

Used to combat round-off errors.

See Also:: Constant Field Values

SHIP_SIDE_LENGTH

public static final double SHIP_SIDE_LENGTH

The side length of the player's ship.

See Also:: Constant Field Values

STARTING_SHIELDS

public static final int STARTING_SHIELDS

The amount of shields each player starts with.

See Also:: Constant Field Values

STARTING_LASER_DAMAGE

public static final int STARTING_LASER_DAMAGE

The amount of damage the player's laser does at the start of the game.

See Also:: Constant Field Values

UPGRADE_WIDTH

public static final double UPGRADE_WIDTH

The width of the upgrades.

See Also:: Constant Field Values

SHIP_START

public static final java.awt.geom.Point2D.Double SHIP_START

The starting location of the player's ship.

MAX_VELOCITY

public static final double MAX_VELOCITY

The maximum velocity of the player's ship.

See Also:: Constant Field Values

UPGRADE_VELOCITY

public static final double UPGRADE_VELOCITY

The velocity of the upgrades.

See Also:: Constant Field Values

MAX_BULLET_COUNT

public static final int MAX_BULLET_COUNT

The maximum number of bullets the player can have on the screen at one time.

See Also:: Constant Field Values

INITIAL_BULLET_COUNT

public static final int INITIAL_BULLET_COUNT

The maximum number of bullets the player can have on the screen at one time.

See Also:: Constant Field Values

PLAYER_BULLET_WIDTH

public static final double PLAYER_BULLET_WIDTH

The width of the player's bullets.

See Also:: Constant Field Values

ENEMY_BULLET_WIDTH

public static final double ENEMY_BULLET_WIDTH

The width of the enemies' bullets.

See Also:: Constant Field Values

INITAL_BULLET_VELOCITY

public static final double INITAL_BULLET_VELOCITY

The initial velocity of the players' bullets.

See Also:: Constant Field Values

bulletVelocity

public double[] bulletVelocity

The array that holds the players' bullet velocities.

ENEMY_BULLET_VELOCITY

public static final double ENEMY_BULLET_VELOCITY

The velocity of the enemies' bullets.

See Also:: Constant Field Values

ENEMY_BOX

public static final java.awt.geom.Rectangle2D.Double ENEMY_BOX

The location and size of the box that defines the enemies' positions.

ENEMY_WIDTH

public static final double ENEMY_WIDTH

The width of the enemies' ships.

See Also:: Constant Field Values

ENEMY_MOVE_DOWN_TIME

public static final double ENEMY_MOVE_DOWN_TIME

The number of seconds that the enemies move down for each time one of them hits the edge of the screen.

See Also:: Constant Field Values

ENEMY_VERTICAL_VELOCITY

public static final double ENEMY_VERTICAL_VELOCITY

The vertical velocity of the enemies' ships.

See Also:: Constant Field Values

ENEMY_HORIZONTAL_VELOCITY

public static final double ENEMY_HORIZONTAL_VELOCITY

The horizontal velocity of the enemies' ships.

See Also:: Constant Field Values

ENEMY_SHOOT_PROBABILITY

public static final double ENEMY_SHOOT_PROBABILITY

The probability that an enemy will shoot every time frame.

See Also:: Constant Field Values

ENEMY_TYPE_THREE_BULLET_VELOCITY

public static final double ENEMY_TYPE_THREE_BULLET_VELOCITY

The velocity of the bullets of enemies of type three.

See Also:: Constant Field Values

ENEMY_TYPE_ONE_POINTS

public static final double ENEMY_TYPE_ONE_POINTS

The number of points awarded to the player for killing an enemy of type one.

See Also:: Constant Field Values

ENEMY_TYPE_TWO_POINTS

public static final double ENEMY_TYPE_TWO_POINTS

The number of points awarded to the player for killing an enemy of type two.

See Also:: Constant Field Values

ENEMY_TYPE_THREE_POINTS

public static final double ENEMY_TYPE_THREE_POINTS

The number of points awarded to the player for killing an enemy of type three.

See Also:: Constant Field Values

PAR_TIME_PER_LEVEL

public static final double PAR_TIME_PER_LEVEL

The number of seconds at which the player receieves no bonus points for completing the wave.

See Also:: Constant Field Values

BONUS_MULTIPLIER

public static final double BONUS_MULTIPLIER

The number of points awarded to the player for each second under 60 times the wave number in which the wave is completed.

See Also:: Constant Field Values

ENEMY_TYPE_ONE_HEALTH

public static final int ENEMY_TYPE_ONE_HEALTH

The amount of damage an enemy of type one can sustain before being killed.

See Also:: Constant Field Values

ENEMY_TYPE_TWO_HEALTH

public static final int ENEMY_TYPE_TWO_HEALTH

The amount of damage an enemy of type two can sustain before being killed.

See Also:: Constant Field Values

ENEMY_TYPE_THREE_HEALTH

public static final int ENEMY_TYPE_THREE_HEALTH

The amount of damage an enemy of type three can sustain before being killed.

See Also:: Constant Field Values

TIMER_LOCATION

public static final java.awt.geom.Point2D.Double TIMER_LOCATION

The location of the timer.

TIMER_SIZE_X

public static final double TIMER_SIZE_X

The width of the timer.

See Also:: Constant Field Values

SCORE_LOCATION

public static final java.awt.geom.Point2D.Double SCORE_LOCATION

The location of the score.

SCORE_SIZE_X

public static final double SCORE_SIZE_X

The width of the score.

See Also:: Constant Field Values

SHIELDS_LOCATION

public static final java.awt.geom.Point2D.Double SHIELDS_LOCATION

The location of the shields.

SHIELDS_SIZE_X

public static final double SHIELDS_SIZE_X

The width of the shields sprite.

See Also:: Constant Field Values

WAVE_LOCATION

public static final java.awt.geom.Point2D.Double WAVE_LOCATION

The location of the wave indicator.

WAVE_SIZE_X

public static final double WAVE_SIZE_X

The width of the wave indicator sprite.

See Also:: Constant Field Values

LEVEL_DELAY

public static final double LEVEL_DELAY

The time (in seconds) in between levels.

See Also:: Constant Field Values

BULLET_SPEED_UPGRADE_MAGNITUDE

public static final double BULLET_SPEED_UPGRADE_MAGNITUDE

The amount by which a player's bullet speed is increased when a bullet speed upgrade is attained.

See Also:: Constant Field Values

NUM_POSSIBLE_UPGRADES

public static final int NUM_POSSIBLE_UPGRADES

The number of upgrades that are attainable.

See Also:: Constant Field Values

UPGRADE_DROP_PROBABILITY

public static final double UPGRADE_DROP_PROBABILITY

The probability that an upgrade will drop when an enemy is killed.

See Also:: Constant Field Values

SHIELD_UPGRADE_MAGNITUDE

public static final int SHIELD_UPGRADE_MAGNITUDE

The amount by which the player's shields are increased when getting a shield upgrade.

See Also:: Constant Field Values

CLIP_FILE

private static final java.net.URL CLIP_FILE

The location of the sound to be played when an enemy is killed.

CLIP_FILE2

private static final java.net.URL CLIP_FILE2

The location of the sound to be played when the player gets an upgrade.

CLIP_FILE3

private static final java.net.URL CLIP_FILE3

The location of the sound to be played in between levels.

scoreSprite

private tipgame.sprite.StringSprite scoreSprite

The sprite for the player's current score.

shieldsSprite

private tipgame.sprite.StringSprite shieldsSprite

The sprite for the player's current shields.

shields

private int[] shields

The player's current shields.

score

private long[] score

The player's current score.

desiredScore

private long desiredScore

The score required to clear each wave.

inBetweenLevels

private boolean inBetweenLevels

Whether or not the player is currently in between waves.

wave

private int wave

The current wave the player is on.

currentBulletCount

private int[] currentBulletCount

The current amount of bullets that the player can have on the screen at one time.

timeOffset

private double timeOffset

Used to reset the timer when the game is restarted.

laserDamage

private int[] laserDamage

The damage the player's laser deals to the enemies.

impactClip

java.applet.AudioClip impactClip

The sound to be played when an enemy is killed.

moneyClip

java.applet.AudioClip moneyClip

The sound to be played when the player gets an upgrade.

levelClip

java.applet.AudioClip levelClip

The sound to be played in between levels.

timer

private tipgame.sprite.StringSprite timer

The timer sprite.

waveSprite

private tipgame.sprite.StringSprite waveSprite

The wave indicator sprite.

ship

public static tipgame.Sprite[] ship

The ship sprites.

shipTracker

private tipgame.game.gammacentauri.tracker.ShipTracker[] shipTracker

The ship trackers.

bullet

private tipgame.Sprite[][] bullet

The player bullets.

bulletTracker

private tipgame.game.gammacentauri.tracker.BulletTracker[][] bulletTracker

The player bullet trackers.

currentBullet

private int[] currentBullet

The current bullet that the player is firing.

enemyGrid

private int[][][] enemyGrid

The grid used to define enemy types and locations on the screen.

enemy

public static tipgame.Sprite[][] enemy

The enemy sprites.

enemyTracker

public static tipgame.game.gammacentauri.tracker.EnemyTracker[][] enemyTracker

The enemy trackers.

enemyBullet

private tipgame.Sprite[][] enemyBullet

The enemy bullets.

enemyHealth

private int[][] enemyHealth

The health of the enemies.

enemyBulletTracker

private tipgame.game.gammacentauri.tracker.EnemyBulletTracker[][] enemyBulletTracker

The enemy bullet trackers.

upgradeGrid

private int[][] upgradeGrid

The array that stores the upgrades hidden within the enemies.

upgrade

private tipgame.Sprite[][] upgrade

The upgrade sprites.

upgradeTracker

private tipgame.game.gammacentauri.tracker.EnemyBulletTracker[][] upgradeTracker

The upgrade trackers.

alive

private boolean[] alive

The array that stores whether each player is alive or not.

spread

private boolean[] spread

The array that stores whether each player has the spread shot upgrade or not.

Constructor Detail

GammaCentauriLoop

public GammaCentauriLoop()

Constructs the game.

Method Detail

startGame

public void startGame()

Description copied from class: tipgame.GameLoop

starts game

Overrides:: startGame in class tipgame.GameLoop

makeTimer

private void makeTimer()

Creates the timer sprite and sets its scale and location.

addTimer

private void addTimer()

Adds the timer to the canvas.

makeShields

private void makeShields()

Creates the shields sprite and sets its scale and location.

addShields

private void addShields()

Adds the shields sprite to the canvas.

makeScore

private void makeScore()

Creates the string sprite and sets its scale and location.

addScore

private void addScore()

Adds the score to the canvas.

makeWave

private void makeWave()

Creates the wave indicator sprite and sets its scale and location.

addWave

private void addWave()

Adds the wave indicator to the canvas.

makeSoundClips

private void makeSoundClips()

Creates the sounds clips.

makeShips

public void makeShips()

Creates a ship for each player and sets its scale, location, and color.

makeShipTrackers

public void makeShipTrackers()

Creates a tracker for each ship.

makeBullets

public void makeBullets()

Creates a number of bullets for each player equal to MAX_BULLET_COUNT.

makeBulletTrackers

public void makeBulletTrackers()

Creates a tracker for each bullet.

addBullets

public void addBullets()

Adds each bullet to the canvas.

addShips

public void addShips()

Adds each ship to the canvas.

moveShips

public void moveShips()

Changes the velocity of each ship based on the keyboard input.

fireBullets

public void fireBullets()

Fires a bullet if the player presses "/" and the player has bullets remaining.

makeEnemyHealth

public void makeEnemyHealth()

Assigns the appropriate amount of health to each enemy.

makeEnemies

public void makeEnemies()

Creates enemies by reading enemyGrid[][][].

makeEnemyTrackers

public void makeEnemyTrackers()

Creates a tracker for each enemy.

makeUpgradeGrid

public void makeUpgradeGrid()

Constructs the grid that holds the upgrades hidden within each enemy.

makeUpgrades

public void makeUpgrades()

Creates the upgrade sprites.

makeUpgradeTrackers

public void makeUpgradeTrackers()

Creates the upgrade trackers.

addUpgrades

public void addUpgrades()

Adds the upgrade sprites to the canvas.

addEnemies

public void addEnemies()

Adds the enemy sprites to the canvas.

addEnemyBullets

public void addEnemyBullets()

Adds the enemy bullet sprites to the canvas.

makeEnemyBullets

public void makeEnemyBullets()

Creates a bullet for each enemy.

makeEnemyBulletTrackers

public void makeEnemyBulletTrackers()

Creates a bullet tracker for each enemy bullet.

fireEnemyBullets

public void fireEnemyBullets()

Fires all of the enemy bullets that need to be fired.

moveEnemies

public void moveEnemies()

Changes the velocity of all of the enemies if one of them hits an edge of ENEMY_BOX.

handleCollisions

public void handleCollisions()

Handles collisions between player bullets and enemies and between enemy bullets and the players.

checkEnemyBullets

public void checkEnemyBullets()

Checks the position of each enemy bullet and resets it if it goes off the canvas.

giveBonusPoints

public void giveBonusPoints()

Gives bonus points to the player based on the time it took to complete the wave.

advanceLevel

public void advanceLevel()

Advances to the next wave.

checkWin

public void checkWin()

Checks to see if the player has enough points to advance to the next level.

advanceFrame

public void advanceFrame()

Description copied from class: tipgame.FrameAdvancer

called repeatedly between every model update

Overrides:: advanceFrame in class tipgame.FrameAdvancer

getHelpURL

protected java.net.URL getHelpURL()

Description copied from class: tipgame.GameWindow

this method must be overridden when extending the GameWindow. A single HTML help file should be placed in tipgame/util/html/your_package_name. This method should return the string:
your_package_name/your_help_file.html

Specified by:: getHelpURL in class tipgame.GameWindow

Returns:: the name of the help file

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tipgame.game.gammacentauri Class GammaCentauriLoop

EPSILON

SHIP_SIDE_LENGTH

STARTING_SHIELDS

STARTING_LASER_DAMAGE

UPGRADE_WIDTH

SHIP_START

MAX_VELOCITY

UPGRADE_VELOCITY

MAX_BULLET_COUNT

INITIAL_BULLET_COUNT

PLAYER_BULLET_WIDTH

ENEMY_BULLET_WIDTH

INITAL_BULLET_VELOCITY

bulletVelocity

ENEMY_BULLET_VELOCITY

ENEMY_BOX

ENEMY_WIDTH

ENEMY_MOVE_DOWN_TIME

ENEMY_VERTICAL_VELOCITY

ENEMY_HORIZONTAL_VELOCITY

ENEMY_SHOOT_PROBABILITY

ENEMY_TYPE_THREE_BULLET_VELOCITY

ENEMY_TYPE_ONE_POINTS

ENEMY_TYPE_TWO_POINTS

ENEMY_TYPE_THREE_POINTS

PAR_TIME_PER_LEVEL

BONUS_MULTIPLIER

ENEMY_TYPE_ONE_HEALTH

ENEMY_TYPE_TWO_HEALTH

ENEMY_TYPE_THREE_HEALTH

TIMER_LOCATION

TIMER_SIZE_X

SCORE_LOCATION

SCORE_SIZE_X

SHIELDS_LOCATION

SHIELDS_SIZE_X

WAVE_LOCATION

WAVE_SIZE_X

LEVEL_DELAY

BULLET_SPEED_UPGRADE_MAGNITUDE

NUM_POSSIBLE_UPGRADES

UPGRADE_DROP_PROBABILITY

SHIELD_UPGRADE_MAGNITUDE

CLIP_FILE

CLIP_FILE2

CLIP_FILE3

scoreSprite

shieldsSprite

shields

score

desiredScore

inBetweenLevels

wave

currentBulletCount

timeOffset

laserDamage

impactClip

moneyClip

levelClip

timer

waveSprite

ship

shipTracker

bullet

bulletTracker

currentBullet

enemyGrid

enemy

enemyTracker

enemyBullet

enemyHealth

enemyBulletTracker

upgradeGrid

upgrade

upgradeTracker

alive

spread

GammaCentauriLoop

startGame

tipgame.game.gammacentauri
Class GammaCentauriLoop