This is HDirectionState.m in view mode; [Download] [Up]
//
// $Id: HDirectionState.m,v 1.2 1997/10/31 03:38:02 nygard Exp $
//
//
// This file is a part of Empire, a game of exploration and conquest.
// Copyright (C) 1996 Steve Nygard
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// You may contact the author by:
// e-mail: nygard@telusplanet.net
//
#import "Empire.h"
RCSID ("$Id: HDirectionState.m,v 1.2 1997/10/31 03:38:02 nygard Exp $");
#import "HDirectionState.h"
#import "Human.h"
#import "MapView.h"
#import "Unit.h"
#import "../Orders.subproj/Orders.h"
//======================================================================
// Allow the user to select a direction for continuously moving the
// currently selected unit. The user may use the keyboard, or click
// in the adjacent squares to select a direction.
//======================================================================
@implementation HDirectionState
//======================================================================
// Subclass responsibilities
//======================================================================
- (NSString *) stateName
{
return @"Direction";
}
//----------------------------------------------------------------------
- (NSString *) stateKey
{
return HS_DIRECTION;
}
//----------------------------------------------------------------------
- (void) stateEntered:(Human *)context
{
MapView *mapView = [context mapView];
// Set cursor
[mapView useDirectionCursor];
[mapView setCursorEnabled:YES];
// Disable both buttons
[context enableContinueButton:NO];
[context enableEndTurnButton:NO];
}
//----------------------------------------------------------------------
- (void) mouseDown:(Human *)context:(unsigned int)modifierFlags atLocation:(EMMapLocation)target
{
int delta_row, delta_col;
Unit *unit = [context selectedUnit];
Direction delta_to_dir[9] = {d_northwest, d_north, d_northeast, d_west, d_none, d_east, d_southwest, d_south, d_southeast};
Direction dir;
EMMapLocation unitLocation = [unit unitLocation];
delta_row = target.row - unitLocation.row;
delta_col = target.column - unitLocation.column;
if (delta_row >= -1 && delta_row <= 1 && delta_col >= -1 && delta_col <= 1)
{
dir = delta_to_dir[3 * (delta_row + 1) + delta_col + 1];
if (dir != d_none)
{
Order *order = [[[ODirection alloc] initForUnit:unit direction:dir] autorelease];
[unit setOrder:order];
[context setStatusLine:[unit statusLine]];
}
[context restoreState];
}
}
//----------------------------------------------------------------------
- (void) keyDown:(Human *)context:(NSEvent *)theEvent
{
NSString *eventCharacters = [theEvent characters];
unichar uc = [eventCharacters characterAtIndex:0];
Direction dir = d_none;
switch (uc)
{
case '1':
dir = d_southwest;
break;
case NSDownArrowFunctionKey:
case '2':
dir = d_south;
break;
case '3':
dir = d_southeast;
break;
case NSLeftArrowFunctionKey:
case '4':
dir = d_west;
break;
case NSRightArrowFunctionKey:
case '6':
dir = d_east;
break;
case '7':
dir = d_northwest;
break;
case NSUpArrowFunctionKey:
case '8':
dir = d_north;
break;
case '9':
dir = d_northeast;
break;
default:
[super keyDown:context:theEvent];
break;
}
if (dir != d_none)
{
Unit *unit = [context selectedUnit];
Order *order = [[[ODirection alloc] initForUnit:unit direction:dir] autorelease];
[unit setOrder:order];
[context setStatusLine:[unit statusLine]];
}
[context restoreState];
}
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.