/*
* Copyright notice
*
* (c) 2009 Tim de Koning - Kingsquare Information Services. All rights reserved.
*
* Original version fc64 by Darron Schall and Claus Wahlers
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
private var cpu:CPU6502;
/** 64 bit mask indicating what keys are down
private var keyBits:Array; // of 2 int values
/**
* Map of the key to it's value in the matrix:
* http://sta.c64.org/cbm64kbdlay.html
private var this.keyMatrixLocations:Array; // Array of 2 int values (row, col)
private var keyMaskColumns:ByteArray;
private var this.joystickMask:uint;
private var shiftDown:Boolean;
private var _enabled:Boolean = false;
private var this.listenerTarget:DisplayObject;
*/
nl.kingsquare.c64.memory.io.Keyboard = Class.extend({
init: function() {
this._enabled = this.shiftDown = false;
this.keyMaskColumns = nl.kingsquare.as3.flash.utils.getByteArray('');
this.keyMaskColumns.length = 8;
this.joystickMask = 0;
this.initializeKeyMatrixLocations();
},
/**
* Initialization
*
* @param cpu The CPU that an NMI can be triggered on
* @param this.listenerTarget The area to listen to for key press/release events
*/
initialize: function(cpu/*:CPU6502*/, listenerTarget/*:DisplayObject*/) {
this.setEnabled(false);
this.cpu = cpu;
this.listenerTarget = listenerTarget;
},
getEnabled: function()/*:Boolean*/ {
return this._enabled;
},
setEnabled: function(value/*:Boolean*/)/*:void*/{
var self = this;
if(this._enabled != value) {
this._enabled = value;
if(this.listenerTarget != null) {
if(this._enabled) {
this.listenerTarget.keyup (function(event) {self.keyUp(event); });
this.listenerTarget.keydown (function(event) {self.keyDown(event); });
} else {
this.listenerTarget.unbind('keydown', function(event) {self.keyDown(event); });
this.listenerTarget.unbind('keyup', function(event) {self.keyUp(event); });
}
}
}
},
/**
* Returns a byte value representing the rows in the keyboard
* matrix with pressed keys
*
* @param columns Byte value representing the selected columns
*/
getRows: function( columns/*:int*/ )/*:int*/ {
var rows/*:int*/ = 0x00;
// Loop over all of the columns and add in the rows that are set in that column
// if the column is one we need to check
rows |= ( columns & 0x01 ) == 0 ? this.keyMaskColumns[ 0 ] : 0x00;
rows |= ( columns & 0x02 ) == 0 ? this.keyMaskColumns[ 1 ] : 0x00;
rows |= ( columns & 0x04 ) == 0 ? this.keyMaskColumns[ 2 ] : 0x00;
rows |= ( columns & 0x08 ) == 0 ? this.keyMaskColumns[ 3 ] : 0x00;
rows |= ( columns & 0x10 ) == 0 ? this.keyMaskColumns[ 4 ] : 0x00;
rows |= ( columns & 0x20 ) == 0 ? this.keyMaskColumns[ 5 ] : 0x00;
rows |= ( columns & 0x40 ) == 0 ? this.keyMaskColumns[ 6 ] : 0x00;
rows |= ( columns & 0x80 ) == 0 ? this.keyMaskColumns[ 7 ] : 0x00;
rows |= this.joystickMask;
return ~rows & 0xFF;
},
getJoystick2: function() {
return ~this.joystickMask & 0xFF;
},
initializeKeyMatrixLocations: function() {
this.keyMatrixLocations = new Array();
// The matrix needs to be flipped here.. the first value is
// the column and the second is the row. When they are read
// as (row,col) it seems to work correctly.
this.keyMatrixLocations[ 0x41 ] = [ 2, 1 ]; // A
this.keyMatrixLocations[ 0x42 ] = [ 4, 3 ]; // B
this.keyMatrixLocations[ 0x43 ] = [ 4, 2 ]; // C
this.keyMatrixLocations[ 0x44 ] = [ 2, 2 ]; // D
this.keyMatrixLocations[ 0x45 ] = [ 6, 1 ]; // E
this.keyMatrixLocations[ 0x46 ] = [ 5, 2 ]; // F
this.keyMatrixLocations[ 0x47 ] = [ 2, 3 ]; // G
this.keyMatrixLocations[ 0x48 ] = [ 5, 3 ]; // H
this.keyMatrixLocations[ 0x49 ] = [ 1, 4 ]; // I
this.keyMatrixLocations[ 0x4A ] = [ 2, 4 ]; // J
this.keyMatrixLocations[ 0x4B ] = [ 5, 4 ]; // K
this.keyMatrixLocations[ 0x4C ] = [ 2, 5 ]; // L
this.keyMatrixLocations[ 0x4D ] = [ 4, 4 ]; // M
this.keyMatrixLocations[ 0x4E ] = [ 7, 4 ]; // N
this.keyMatrixLocations[ 0x4F ] = [ 6, 4 ]; // O
this.keyMatrixLocations[ 0x50 ] = [ 1, 5 ]; // P
this.keyMatrixLocations[ 0x51 ] = [ 6, 7 ]; // Q
this.keyMatrixLocations[ 0x52 ] = [ 1, 2 ]; // R
this.keyMatrixLocations[ 0x53 ] = [ 5, 1 ]; // S
this.keyMatrixLocations[ 0x54 ] = [ 6, 2 ]; // T
this.keyMatrixLocations[ 0x55 ] = [ 6, 3 ]; // U
this.keyMatrixLocations[ 0x56 ] = [ 7, 3 ]; // V
this.keyMatrixLocations[ 0x57 ] = [ 1, 1 ]; // W
this.keyMatrixLocations[ 0x58 ] = [ 7, 2 ]; // X
this.keyMatrixLocations[ 0x59 ] = [ 1, 3 ]; // Y
this.keyMatrixLocations[ 0x5A ] = [ 4, 1 ]; // Z
this.keyMatrixLocations[ 0x30 ] = [ 3, 4 ]; // 0
this.keyMatrixLocations[ 0x31 ] = [ 0, 7 ]; // 1
this.keyMatrixLocations[ 0x32 ] = [ 3, 7 ]; // 2
this.keyMatrixLocations[ 0x33 ] = [ 0, 1 ]; // 3
this.keyMatrixLocations[ 0x34 ] = [ 3, 1 ]; // 4
this.keyMatrixLocations[ 0x35 ] = [ 0, 2 ]; // 5
this.keyMatrixLocations[ 0x36 ] = [ 3, 2 ]; // 6
this.keyMatrixLocations[ 0x37 ] = [ 0, 3 ]; // 7
this.keyMatrixLocations[ 0x38 ] = [ 3, 3 ]; // 8
this.keyMatrixLocations[ 0x39 ] = [ 0, 4 ]; // 9
this.keyMatrixLocations[ 0xDE ] = [ 5, 5 ]; // : (mapped on '~' key)
this.keyMatrixLocations[ 0xBA ] = [ 2, 6 ]; // ;
this.keyMatrixLocations[ 0xBB ] = [ 5, 6 ]; // =
this.keyMatrixLocations[ 0xBC ] = [ 7, 5 ]; // ,
this.keyMatrixLocations[ 0xBD ] = [ 3, 5 ]; // -
this.keyMatrixLocations[ 0xBE ] = [ 4, 5 ]; // .
this.keyMatrixLocations[ 0xBF ] = [ 7, 6 ]; // /
//this.keyMatrixLocations[ 0x42 ] = [ 6, 5 ]; // @
this.keyMatrixLocations[ 0xDD ] = [ 0, 5 ]; // + (mapped on '[')
//this.keyMatrixLocations[ 0x5C ] = [ 0, 6 ]; // \
this.keyMatrixLocations[ 0xDC ] = [ 1, 6 ]; // * (mapped on ']')
this.keyMatrixLocations[ 0x12 ] = [ 5, 7 ]; // ALT
this.keyMatrixLocations[ 17 ] = [ 2, 7 ]; //flash.ui.Keyboard.CONTROL
this.keyMatrixLocations[ 36 ] = [ 3, 6 ]; // flash.ui.Keyboard.HOME
this.keyMatrixLocations[ 13 ] = [ 1, 0 ]; // flash.ui.Keyboard.ENTER
this.keyMatrixLocations[ 46 ] = [ 0, 0 ]; //flash.ui.Keyboard.DELETE
this.keyMatrixLocations[ 8 ] = [ 0, 0 ]; // flash.ui.Keyboard.BACKSPACE
this.keyMatrixLocations[ 27 ] = [ 7, 7 ]; //flash.ui.Keyboard.ESCAPE
this.keyMatrixLocations[ 32 ] = [ 4, 7 ]; //flash.ui.Keyboard.SPACE
this.keyMatrixLocations[ 40 ] = [ 7, 0 ]; // flash.ui.Keyboard.DOWN
this.keyMatrixLocations[ 39 ] = [ 2, 0 ]; //flash.ui.Keyboard.RIGHT
this.keyMatrixLocations[ 16 ] = [ 7, 1 ]; // left shift flash.ui.Keyboard.SHIFT
//this.keyMatrixLocations[ flash.ui.Keyboard.SHIFT ] = [ 4, 6 ]; // right shift
this.keyMatrixLocations[ 112 ] = [ 4, 0 ]; // flash.ui.Keyboard.F1
this.keyMatrixLocations[ 114 ] = [ 5, 0 ]; // flash.ui.Keyboard.F3
this.keyMatrixLocations[ 116 ] = [ 6, 0 ]; // flash.ui.Keyboard.F5
this.keyMatrixLocations[ 118 ] = [ 3, 0 ]; // flash.ui.Keyboard.F7
},
keyDown: function( event/*:KeyboardEvent*/ ) {
var keyCode/*:int*/ = event.keyCode;
switch(keyCode) {
case 33: //flash.ui.Keyboard.PAGE_UP:
this.cpu.NMI();
break;
case 16://flash.ui.Keyboard.SHIFT:
this.shiftDown = true;
break;
case 38:
case 104: //flash.ui.Keyboard.NUMPAD_8:
this.joystickMask |= 0x01;
break;
case 40:
case 40:
case 98: //flash.ui.Keyboard.NUMPAD_2:
this.joystickMask |= 0x02;
break;
case 37:
case 37:
case 100: //flash.ui.Keyboard.NUMPAD_4:
this.joystickMask |= 0x04;
break;
case 39:
case 102: //flash.ui.Keyboard.NUMPAD_6:
this.joystickMask |= 0x08;
break;
case 32: //flash.ui.Keyboard.SPACE:
this.joystickMask |= 0x10;
break;
}
if ( this.keyMatrixLocations[ keyCode ] != null )
{
var keyMatrixItem/*:Array*/ = this.keyMatrixLocations[ keyCode ];
// Get the row/column location of the key in the matrix
var row/*:int*/ = keyMatrixItem[ 0 ];
var column/*:int*/ = keyMatrixItem[ 1 ];
// Mark the row value as being pressed for the column
this.keyMaskColumns[ column ] |= 1 << row;
}
},
keyUp: function ( event/*:KeyboardEvent*/ ) {
var keyCode/*:int*/ = event.keyCode;
switch(keyCode)
{
case 16: //flash.ui.Keyboard.SHIFT:
this.shiftDown = false;
break;
case 38:
case 104://flash.ui.Keyboard.NUMPAD_8:
this.joystickMask &= ~0x01;
break;
case 40:
case 98: //flash.ui.Keyboard.NUMPAD_2:
this.joystickMask &= ~0x02;
break;
case 37:
case 100: //flash.ui.Keyboard.NUMPAD_4:
this.joystickMask &= ~0x04;
break;
case 39:
case 102:// flash.ui.Keyboard.NUMPAD_6:
this.joystickMask &= ~0x08;
break;
case 32: //flash.ui.Keyboard.SPACE:
this.joystickMask &= ~0x10;
break;
}
if ( this.keyMatrixLocations[ keyCode ] != null )
{
// Get the row/column location of the key in the matrix
var row/*:int*/ = this.keyMatrixLocations[ keyCode ][ 0 ];
var column/*:int*/ = this.keyMatrixLocations[ keyCode ][ 1 ];
// Mark the row value as being pressed for the column
this.keyMaskColumns[ column ] &= ~( 1 << row );
}
}
});
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