Dave Hoover
120e9c0db9
git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@119 ed5b42cb-e716-0410-a449-f6a68f950b19
102 lines
3.4 KiB
Java
102 lines
3.4 KiB
Java
//
|
|
// $Id$
|
|
//
|
|
// Narya library - tools for developing networked games
|
|
// Copyright (C) 2002-2004 Three Rings Design, Inc., All Rights Reserved
|
|
// http://www.threerings.net/code/narya/
|
|
//
|
|
// This library is free software; you can redistribute it and/or modify it
|
|
// under the terms of the GNU Lesser General Public License as published
|
|
// by the Free Software Foundation; either version 2.1 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This library 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
|
|
// Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public
|
|
// License along with this library; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
package com.threerings.miso.util;
|
|
|
|
import com.threerings.miso.client.MisoScenePanel;
|
|
|
|
/**
|
|
* Contains information on the configuration of a particular isometric
|
|
* view. The member data are public to facilitate convenient referencing
|
|
* by the {@link MisoScenePanel} class, the values should not be modified
|
|
* once the metrics are constructed.
|
|
*/
|
|
public class MisoSceneMetrics
|
|
{
|
|
/** Tile dimensions and half-dimensions in the view. */
|
|
public int tilewid, tilehei, tilehwid, tilehhei;
|
|
|
|
/** Fine coordinate dimensions. */
|
|
public int finehwid, finehhei;
|
|
|
|
/** Number of fine coordinates on each axis within a tile. */
|
|
public int finegran;
|
|
|
|
/** Dimensions of our scene blocks in tile count. */
|
|
public short blockwid = 4, blockhei = 4;
|
|
|
|
/** The length of a tile edge in pixels. */
|
|
public float tilelen;
|
|
|
|
/** The slope of the x- and y-axis lines. */
|
|
public float slopeX, slopeY;
|
|
|
|
/** The length between fine coordinates in pixels. */
|
|
public float finelen;
|
|
|
|
/** The y-intercept of the x-axis line within a tile. */
|
|
public float fineBX;
|
|
|
|
/** The slope of the x- and y-axis lines within a tile. */
|
|
public float fineSlopeX, fineSlopeY;
|
|
|
|
/**
|
|
* Constructs scene metrics by directly specifying the desired config
|
|
* parameters.
|
|
*
|
|
* @param tilewid the width in pixels of the tiles.
|
|
* @param tilehei the height in pixels of the tiles.
|
|
* @param finegran the number of sub-tile divisions to use for fine
|
|
* coordinates.
|
|
*/
|
|
public MisoSceneMetrics (int tilewid, int tilehei, int finegran)
|
|
{
|
|
// keep track of this stuff
|
|
this.tilewid = tilewid;
|
|
this.tilehei = tilehei;
|
|
this.finegran = finegran;
|
|
|
|
// halve the dimensions
|
|
tilehwid = (tilewid / 2);
|
|
tilehhei = (tilehei / 2);
|
|
|
|
// calculate the length of a tile edge in pixels
|
|
tilelen = (float) Math.sqrt(
|
|
(tilehwid * tilehwid) + (tilehhei * tilehhei));
|
|
|
|
// calculate the slope of the x- and y-axis lines
|
|
slopeX = (float)tilehei / (float)tilewid;
|
|
slopeY = -slopeX;
|
|
|
|
// calculate the edge length separating each fine coordinate
|
|
finelen = tilelen / (float)finegran;
|
|
|
|
// calculate the fine-coordinate x-axis line
|
|
fineSlopeX = (float)tilehei / (float)tilewid;
|
|
fineBX = -(fineSlopeX * (float)tilehwid);
|
|
fineSlopeY = -fineSlopeX;
|
|
|
|
// calculate the fine coordinate dimensions
|
|
finehwid = (int)((float)tilehwid / (float)finegran);
|
|
finehhei = (int)((float)tilehhei / (float)finegran);
|
|
}
|
|
}
|