/*
 * Copyright © 2013 Keith Packard <keithp@keithp.com>
 *
 * 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; version 2 of the License.
 *
 * 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.
 */

load "footprint.5c"
import Footprint;

/*
 * These values come from the Carsem MLP spec */
real pad_outside = 0.20;
real pad_inside = 0.05;
real pad_side = 0.025;	/* for pad pitch > 0.65mm */

real pad_width = 0.30;
real pad_height = 0.60;
real pad_spacing = 0.80;

real package_width = 4;
real package_height = 3;

real pad_y_off = package_height / 2;

real num_pad = 4;	/* per side */

element_start("mlp8");

real pad_off_x(int n) {
	return pad_spacing * (n - (num_pad - 1) / 2);
}

real corner(int dx, int dy) {
	real	x = dx * package_width / 2;
	real	y = dy * package_height / 2;
	real	len = 0.4;

	line(x, y, x - dx * len, y);
	line(x, y, x, y - dy * len);
}

real pad_top(real x, real y, int n) {
	real	w_pad = pad_width + pad_side * 2;
	real	h_pad = pad_height + pad_outside + pad_inside;
	real	x_pad = x;
	real	y_pad = y + pad_outside - h_pad/2;

	pad_mm(x_pad, y_pad, w_pad, h_pad, sprintf("%d", n), sprintf("%d", n));
}

real pad_bottom(real x, real y, int n) {
	real	w_pad = pad_width + pad_side * 2;
	real	h_pad = pad_height + pad_outside + pad_inside;
	real	x_pad = x;
	real	y_pad = y - pad_outside + h_pad/2;

	pad_mm(x_pad, y_pad, w_pad, h_pad, sprintf("%d", n), sprintf("%d", n));
}

corner(-1, -1);
corner(1, -1);
corner(-1, 1);
corner(1, 1);

real dot_off = -.3;

line(-package_width/2 + dot_off, package_height/2 - dot_off,
     -package_width/2 + dot_off, package_height/2 - dot_off);

for (int pad = 0; pad < num_pad; pad++) {
	/* top (1-4) */

	pad_top (pad_off_x(pad), package_height / 2, pad + 1);

	/* bottom (8-5) */

	pad_bottom (pad_off_x(pad), -package_height / 2, 8 - pad);
}


element_end();