Commands / add()

• Example

// Be sure to click the applet so it knows about your keyboard
import compose.commands.*;

Commands commands;

void setup() {
  commands = new Commands(this);
  commands.add("drawEllipse", 'd');
  commands.add("drawRect", CONTROL, 'd');
}

// You must add draw, or Command won't receive key events!
void draw() { }

void drawEllipse() {
  ellipse(random(width), random(height), 10, 10);
}

void drawRect() {
  rect(random(width), random(height), 20, 20);
}

Description

Ties a key or a keystroke to a function, as an alternative to having a large if-else statement in your keyPressed() method. The function you assign to the key or keystroke must have no parameters. You can specify as many keyCodes as you want.

Syntax

commands.add(functionName, keyCode)    
commands.add(functionName, keyCode, keyCode)
commands.add(functionName, keyCode, keyCode, keyCode) ...

commands.add(functionName, target, keyCode)
commands.add(functionName, target, keyCode, keyCode)
commands.add(functionName, target, keyCode, keyCode, keyCode) ...

Parameters

functionName

String: the name of the function to be called

keyCode

char or int: the key that calls the function.

target

Object: the object the function belongs to (assumed to be PApplet)

Returns

None

Usage

Web & Applications

Related

• compatibilityMode()

1 Comment

1. admin
   Wed, 03 Mar 10 15:22:16 -0800 #
   

   question~?

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