Struct.java

/*
 *  This file is part of the Haven & Hearth game client.
 *  Copyright (C) 2009 Fredrik Tolf <fredrik@dolda2000.com>, and
 *                     Björn Johannessen <johannessen.bjorn@gmail.com>
 *
 *  Redistribution and/or modification of this file is subject to the
 *  terms of the GNU Lesser General Public License, version 3, as
 *  published by the Free Software Foundation.
 *
 *  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.
 *
 *  Other parts of this source tree adhere to other copying
 *  rights. Please see the file `COPYING' in the root directory of the
 *  source tree for details.
 *
 *  A copy the GNU Lesser General Public License is distributed along
 *  with the source tree of which this file is a part in the file
 *  `doc/LPGL-3'. If it is missing for any reason, please see the Free
 *  Software Foundation's website at <http://www.fsf.org/>, or write
 *  to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 *  Boston, MA 02111-1307 USA
 */

package haven.glsl;
import java.util.*;

public class Struct extends Type {
    public final Symbol name;
    public final List<Field> fields;

    public static class Field {
	public final Type type;
	public final String name;

	public Field(Type type, String name) {
	    this.type = type;
	    this.name = name;
	}
    }

    private Struct(Symbol name, List<Field> fields) {
	this.name = name;
	this.fields = fields;
    }

    public Struct(Symbol name, Field... fields) {
	this(name, Arrays.asList(fields));
    }

    public Struct(Symbol name) {
	this(name, new LinkedList<Field>());
    }

    public static Struct make(Symbol name, Object... args) {
	Field[] fs = new Field[args.length / 2];
	for(int f = 0, a = 0; a < args.length;) {
	    Type ft = (Type)args[a++];
	    String fn = (String)args[a++];
	    fs[f++] = new Field(ft, fn);
	}
	return(new Struct(name, fs));
    }

    public String name(Context ctx) {
	return("struct " + name.name(ctx));
    }

    public static final Struct gl_LightSourceParameters = make(new Symbol.Fix("gl_LightSourceParameters"),
							       Type.VEC4, "ambient",
							       Type.VEC4, "diffuse",
							       Type.VEC4, "specular",
							       Type.VEC4, "position",
							       Type.VEC4, "halfVector",
							       Type.VEC3, "spotDirection",
							       Type.FLOAT, "spotExponent",
							       Type.FLOAT, "spotCutoff",
							       Type.FLOAT, "spotCosCutoff",
							       Type.FLOAT, "constantAttenuation",
							       Type.FLOAT, "linearAttenuation",
							       Type.FLOAT, "quadraticAttenuation");
    public static final Struct gl_MaterialParameters = make(new Symbol.Fix("gl_MaterialParameters"),
							    Type.VEC4, "emission",
							    Type.VEC4, "ambient",
							    Type.VEC4, "diffuse",
							    Type.VEC4, "specular",
							    Type.FLOAT, "shininess");
}