g4p_controls

Class GStick

java.lang.Object

g4p_controls.GAbstractControl

g4p_controls.GStick

All Implemented Interfaces:

GConstants, processing.core.PConstants

public class GStick
extends GAbstractControl

This control simulates a digital joystick and is designed to give more intuitive control in game scenarios where you might use the keyboard e.g. WASD keys for movement.
The joystick has two modes - in the default mode the joystick just responds to movement in 4 directions (left,right, up and down) the second mode allows for diagonals so recognises 8 directions.
As in a real joystick you have a dead zone near the centre which does not generate signals, thus avoiding jitter. This area is shown graphically.
The direction of the joystick is represented by an integer in the range 0-7 and -1 when in the dead zone.

     5   6   7
      \  |  /
       \ | /
   4 --- + --- 0         + is the dea zone so -1
       / | \
      /  |  \
     3   2   1
 

As well as the direction there are two useful methods to decode these into X and Y directions -

getStickX()

and

getStickY()

which give the values.

 X= -1   0   +1 
      \  |  /  -1
       \ | /
     --- + ---  0
       / | \
      /  |  \
           Y=  +1
 

The stick will auto-center when released.
The minimum size for this control is 40x40 pixels and this is enforced when the control is created. If necessary the width and/or height the rectangle will be increased to 40pixels.

Author:

Peter Lager

Nested Class Summary

Nested classes/interfaces inherited from class g4p_controls.GAbstractControl

GAbstractControl.Z_Order

Field Summary

Fields

Modifier and Type	Field and Description
static int	ALL_METHOD
static int	CLIP_RUN
static int	COMBI_MODES
static java.lang.String	DEFAULT_SLIDER_STYLE
static int	DRAG_CONTROL
static int	DRAW_METHOD
static char	EOL
static int	EXCP_IN_HANDLER
static int[][]	grid
static int	GROUP_CONTROL_METHOD
static int	I_CL
static int	I_COVERED
static int	I_CR
static int	I_INSIDE
static int	I_MODES
static int	I_NONE
static int	I_TL
static int	I_TR
static int	INVALID_PAPPLET
static int	INVALID_TYPE
static int	KEY_METHOD
static int	MERGE_RUNS
static int	MISSING
static int	MOUSE_METHOD
static int	NONEXISTANT
static int	OFF_CONTROL
static int	OVER_CONTROL
static java.awt.BasicStroke	pen_1_0
static java.awt.BasicStroke	pen_2_0
static java.awt.BasicStroke	pen_3_0
static java.awt.BasicStroke	pen_4_0
static int	POST_METHOD
static int	PRE_METHOD
static int	PRESS_CONTROL
static int	SCROLLBAR_HORIZONTAL
static int	SCROLLBAR_VERTICAL
static java.lang.String	SLIDER_STYLES
static int	TINT_FOR_ALPHA
static int	TPAD2
static int	TPAD4
static int	TPAD6
static int	TPAD8
static float	WHEEL_DELTA
static float	WHEEL_STICK_FACTOR
static int	Z_PANEL
static int	Z_SLIPPY
static int	Z_SLIPPY_EXPANDS
static int	Z_STICKY

Fields inherited from class g4p_controls.GAbstractControl

tag, tagNo

Fields inherited from interface processing.core.PConstants

ADD, ALPHA, ALT, AMBIENT, ARC, ARGB, ARROW, BACKSPACE, BASELINE, BEVEL, BEZIER_VERTEX, BLEND, BLUR, BOTTOM, BOX, BREAK, BURN, CENTER, CHATTER, CHORD, CLAMP, CLOSE, CODED, COMPLAINT, CONTROL, CORNER, CORNERS, CROSS, CURVE_VERTEX, CUSTOM, DARKEST, DEG_TO_RAD, DELETE, DIAMETER, DIFFERENCE, DILATE, DIRECTIONAL, DISABLE_ASYNC_SAVEFRAME, DISABLE_BUFFER_READING, DISABLE_DEPTH_MASK, DISABLE_DEPTH_SORT, DISABLE_DEPTH_TEST, DISABLE_KEY_REPEAT, DISABLE_NATIVE_FONTS, DISABLE_OPENGL_ERRORS, DISABLE_OPTIMIZED_STROKE, DISABLE_STROKE_PERSPECTIVE, DISABLE_STROKE_PURE, DISABLE_TEXTURE_MIPMAPS, DODGE, DOWN, DXF, ELLIPSE, ENABLE_ASYNC_SAVEFRAME, ENABLE_BUFFER_READING, ENABLE_DEPTH_MASK, ENABLE_DEPTH_SORT, ENABLE_DEPTH_TEST, ENABLE_KEY_REPEAT, ENABLE_NATIVE_FONTS, ENABLE_OPENGL_ERRORS, ENABLE_OPTIMIZED_STROKE, ENABLE_STROKE_PERSPECTIVE, ENABLE_STROKE_PURE, ENABLE_TEXTURE_MIPMAPS, ENTER, EPSILON, ERODE, ESC, EXCLUSION, FX2D, GIF, GRAY, GROUP, HALF_PI, HAND, HARD_LIGHT, HINT_COUNT, HSB, IMAGE, INVERT, JAVA2D, JPEG, LANDSCAPE, LEFT, LIGHTEST, LINE, LINE_LOOP, LINE_STRIP, LINES, LINUX, MACOSX, MAX_FLOAT, MAX_INT, MIN_FLOAT, MIN_INT, MITER, MODEL, MODELVIEW, MOVE, MULTIPLY, NORMAL, OPAQUE, OPEN, OPENGL, ORTHOGRAPHIC, OTHER, OVERLAY, P2D, P3D, PATH, PDF, PERSPECTIVE, PI, PIE, platformNames, POINT, POINTS, POLYGON, PORTRAIT, POSTERIZE, PROBLEM, PROJECT, PROJECTION, QUAD, QUAD_BEZIER_VERTEX, QUAD_STRIP, QUADRATIC_VERTEX, QUADS, QUARTER_PI, RAD_TO_DEG, RADIUS, RECT, REPEAT, REPLACE, RETURN, RGB, RIGHT, ROUND, SCREEN, SHAPE, SHIFT, SOFT_LIGHT, SPAN, SPHERE, SPOT, SQUARE, SUBTRACT, SVG, TAB, TARGA, TAU, TEXT, THIRD_PI, THRESHOLD, TIFF, TOP, TRIANGLE, TRIANGLE_FAN, TRIANGLE_STRIP, TRIANGLES, TWO_PI, UP, VERTEX, WAIT, WHITESPACE, WINDOWS, X, Y, Z

Fields inherited from interface g4p_controls.GConstants

ALPHA_BLOCK, ALPHA_PICK, BACKGROUND, BLUE_SCHEME, CANCEL, CLOSE_WINDOW, CLOSED, CTRL_ANGULAR, CTRL_HORIZONTAL, CTRL_VERTICAL, CYAN_SCHEME, DECIMAL, END, ERROR, EXIT_APP, EXPONENT, FAMILY, FOREGROUND, FORWARD, GOLD_SCHEME, GREEN_SCHEME, HOME, INFO, INTEGER, KEEP_OPEN, NO, OK, OK_CANCEL, ORANGE_SCHEME, ORIENT_LEFT, ORIENT_RIGHT, ORIENT_TRACK, PLAIN, POSTURE, POSTURE_OBLIQUE, POSTURE_REGULAR, PURPLE_SCHEME, QUERY, RED_SCHEME, REVERSE, SCHEME_10, SCHEME_11, SCHEME_12, SCHEME_13, SCHEME_14, SCHEME_15, SCHEME_8, SCHEME_9, SCROLLBARS_AUTOHIDE, SCROLLBARS_BOTH, SCROLLBARS_HORIZONTAL_ONLY, SCROLLBARS_NONE, SCROLLBARS_VERTICAL_ONLY, SIZE, STRIKETHROUGH, STRIKETHROUGH_OFF, STRIKETHROUGH_ON, SUPERSCRIPT, SUPERSCRIPT_OFF, SUPERSCRIPT_SUB, SUPERSCRIPT_SUPER, USER_COL_SCHEME, WARNING, WEIGHT, WEIGHT_BOLD, WEIGHT_DEMIBOLD, WEIGHT_DEMILIGHT, WEIGHT_EXTRA_LIGHT, WEIGHT_EXTRABOLD, WEIGHT_HEAVY, WEIGHT_LIGHT, WEIGHT_MEDIUM, WEIGHT_REGULAR, WEIGHT_SEMIBOLD, WEIGHT_ULTRABOLD, WIDTH, WIDTH_CONDENSED, WIDTH_EXTENDED, WIDTH_REGULAR, WIDTH_SEMI_CONDENSED, WIDTH_SEMI_EXTENDED, X4, X8, YELLOW_SCHEME, YES, YES_NO, YES_NO_CANCEL

Constructor Summary

Constructors

Constructor and Description
GStick(processing.core.PApplet theApplet, float p0, float p1, float p2, float p3) Create the stick inside the specified rectangle.

Method Summary

Methods

Modifier and Type	Method and Description
void	draw()
int	getMode() Get the current mode
int	getPosition() Returns the current position of the stick based on
int	getStickX() Get the X position of the stick from *
int	getStickY() Get the Y position of the stick from *
void	mouseEvent(processing.event.MouseEvent event)
void	setMode(int m) Sets the stick mode to either 4 or 8 directions.

Methods inherited from class g4p_controls.GAbstractControl

addControl, addControl, addControl, addControls, addEventHandler, dispose, forceBufferUpdate, getCursorOver, getCX, getCY, getHeight, getLocalColorScheme, getPApplet, getParent, getSnapshot, getWidth, getX, getY, hasFocus, isDragging, isEnabled, isOpaque, isOver, isVisible, keyEvent, markForDisposal, moveTo, moveTo, post, pre, saveSnapshot, saveSnapshot, setAlpha, setAlpha, setCursorOver, setEnabled, setFocus, setLocalColor, setLocalColorScheme, setLocalColorScheme, setOpaque, setRotation, setRotation, setVisible, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

SLIDER_STYLES

public static final java.lang.String SLIDER_STYLES

See Also:

Constant Field Values

DEFAULT_SLIDER_STYLE

public static final java.lang.String DEFAULT_SLIDER_STYLE

See Also:

Constant Field Values

DRAW_METHOD

public static final int DRAW_METHOD

See Also:

Constant Field Values

MOUSE_METHOD

public static final int MOUSE_METHOD

See Also:

Constant Field Values

PRE_METHOD

public static final int PRE_METHOD

See Also:

Constant Field Values

KEY_METHOD

public static final int KEY_METHOD

See Also:

Constant Field Values

POST_METHOD

public static final int POST_METHOD

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Constant Field Values

ALL_METHOD

public static final int ALL_METHOD

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Constant Field Values

GROUP_CONTROL_METHOD

public static final int GROUP_CONTROL_METHOD

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Constant Field Values

MISSING

public static final int MISSING

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Constant Field Values

NONEXISTANT

public static final int NONEXISTANT

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Constant Field Values

INVALID_TYPE

public static final int INVALID_TYPE

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Constant Field Values

INVALID_PAPPLET

public static final int INVALID_PAPPLET

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Constant Field Values

EXCP_IN_HANDLER

public static final int EXCP_IN_HANDLER

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Constant Field Values

OFF_CONTROL

public static final int OFF_CONTROL

See Also:

Constant Field Values

OVER_CONTROL

public static final int OVER_CONTROL

See Also:

Constant Field Values

PRESS_CONTROL

public static final int PRESS_CONTROL

See Also:

Constant Field Values

DRAG_CONTROL

public static final int DRAG_CONTROL

See Also:

Constant Field Values

TINT_FOR_ALPHA

public static final int TINT_FOR_ALPHA

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Constant Field Values

I_NONE

public static final int I_NONE

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Constant Field Values

I_TL

public static final int I_TL

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Constant Field Values

I_TR

public static final int I_TR

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Constant Field Values

I_CL

public static final int I_CL

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Constant Field Values

I_CR

public static final int I_CR

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Constant Field Values

I_INSIDE

public static final int I_INSIDE

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Constant Field Values

I_COVERED

public static final int I_COVERED

See Also:

Constant Field Values

I_MODES

public static final int I_MODES

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Constant Field Values

MERGE_RUNS

public static final int MERGE_RUNS

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Constant Field Values

CLIP_RUN

public static final int CLIP_RUN

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Constant Field Values

COMBI_MODES

public static final int COMBI_MODES

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Constant Field Values

grid

public static final int[][] grid

pen_1_0

public static final java.awt.BasicStroke pen_1_0

pen_2_0

public static final java.awt.BasicStroke pen_2_0

pen_3_0

public static final java.awt.BasicStroke pen_3_0

pen_4_0

public static final java.awt.BasicStroke pen_4_0

TPAD2

public static final int TPAD2

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Constant Field Values

TPAD4

public static final int TPAD4

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Constant Field Values

TPAD6

public static final int TPAD6

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Constant Field Values

TPAD8

public static final int TPAD8

See Also:

Constant Field Values

SCROLLBAR_VERTICAL

public static final int SCROLLBAR_VERTICAL

See Also:

Constant Field Values

SCROLLBAR_HORIZONTAL

public static final int SCROLLBAR_HORIZONTAL

See Also:

Constant Field Values

WHEEL_DELTA

public static final float WHEEL_DELTA

See Also:

Constant Field Values

WHEEL_STICK_FACTOR

public static final float WHEEL_STICK_FACTOR

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Constant Field Values

EOL

public static final char EOL

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Constant Field Values

Z_STICKY

public static final int Z_STICKY

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Constant Field Values

Z_SLIPPY

public static final int Z_SLIPPY

See Also:

Constant Field Values

Z_SLIPPY_EXPANDS

public static final int Z_SLIPPY_EXPANDS

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Constant Field Values

Z_PANEL

public static final int Z_PANEL

See Also:

Constant Field Values

Constructor Detail

GStick

public GStick(processing.core.PApplet theApplet,
      float p0,
      float p1,
      float p2,
      float p3)

Create the stick inside the specified rectangle.

Parameters:

theApplet -

p0 -

p1 -

p2 -

p3 -

Method Detail

setMode

public void setMode(int m)

Sets the stick mode to either 4 or 8 directions.
If the mode parameter should be either G4P.X4 or G4P.X8 any other value will be silently ignored

Parameters:

m - the new mode

getMode

public int getMode()

Get the current mode

getPosition

public int getPosition()

Returns the current position of the stick based on

     5   6   7
      \  |  /
       \ | /
   4 --- + --- 0         + is the dea zone so -1
       / | \
      /  |  \
     3   2   1
 

Returns:

current stick direction

getStickX

public int getStickX()

Get the X position of the stick from
*

 X= -1   0   +1 
      \  |  /  -1
       \ | /
     --- + ---  0
       / | \
      /  |  \
           Y=  +1
 

Returns:

the X value (-1, 0 or 1)

getStickY

public int getStickY()

Get the Y position of the stick from
*

 X= -1   0   +1 
      \  |  /  -1
       \ | /
     --- + ---  0
       / | \
      /  |  \
           Y=  +1
 

Returns:

the Y value (-1, 0 or 1)

mouseEvent

public void mouseEvent(processing.event.MouseEvent event)

Overrides:

mouseEvent in class GAbstractControl

draw

public void draw()

Overrides:

draw in class GAbstractControl