map: Parse map attributes

1 files changed, 67 insertions, 4 deletions

diff --git a/src/map.c b/src/map.c
index 685d1b0..9028354 100644
--- a/src/map.c
+++ b/src/map.c
@@ -16,16 +16,25 @@
  * You should have received a copy of the GNU General Public License
  * along with Dodge Balls.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 #include <expat.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include "defs.h"
 #include "dirs.h"
 #include "map.h"
 #include "output.h"
 #include "xml.h"
 
 struct db_map {
+	int   w;
+	int   h;
+	int   tw;
+	int   th;
+	Uint8 bg_r;
+	Uint8 bg_g;
+	Uint8 bg_b;
 };
 
 static char *
@@ -75,6 +84,11 @@ _db_tmx_invalid_start(void *pv, const char *name,
 }
 
 static void XMLCALL
+_db_tmx_map_el_start(void *pv, const char *name, const char **attr)
+{
+}
+
+static void XMLCALL
 _db_tmx_map_end(void *pv, const char *name)
 {
 	XML_Parser p;
@@ -91,11 +105,16 @@ _db_tmx_map_end(void *pv, const char *name)
 }
 
 static void XMLCALL
-_db_tmx_map_start(void *pv, const char *name,
-		const char **attr __attribute__((__unused__)))
+_db_tmx_map_start(void *pv, const char *name, const char **attr)
 {
-	XML_Parser      p;
+	XML_Parser     p;
 	struct db_map *map;
+	char          *orientation;
+	char          *renderorder;
+	char          *backgroundcolor;
+	unsigned int   bg_r;
+	unsigned int   bg_g;
+	unsigned int   bg_b;
 
 	db_dbg("  <%s> (map)", name);
 
@@ -103,7 +122,51 @@ _db_tmx_map_start(void *pv, const char *name,
 	map = db_xml_node_peek(p);
 
 	if (db_xml_check_tag(name, "map")) {
-		db_xml_node_push(p, map, _db_tmx_invalid_start,
+		/* Check orientation */
+		db_xml_get_string_attr(p, attr, "orientation", &orientation, 1);
+		if (strcmp(orientation, "orthogonal") != 0) {
+			db_err("Map must be orthogonal");
+			XML_StopParser(p, XML_FALSE);
+			return;
+		}
+		free(orientation);
+		/* Check render order */
+		db_xml_get_string_attr(p, attr, "renderorder", &renderorder, 1);
+		if (strcmp(renderorder, "right-down") != 0) {
+			db_err("Map must be rendered right-down");
+			XML_StopParser(p, XML_FALSE);
+			return;
+		}
+		free(renderorder);
+		/* Get and check size */
+		db_xml_get_int_attr(p, attr, "width",      &map->w,  1);
+		db_xml_get_int_attr(p, attr, "height",     &map->h,  1);
+		db_xml_get_int_attr(p, attr, "tilewidth",  &map->tw, 1);
+		db_xml_get_int_attr(p, attr, "tileheight", &map->th, 1);
+		if (map->w * map->tw != DB_WINDOW_W ||
+				map->h * map->th != DB_WINDOW_H) {
+			db_err("Map size must be %dx%d px",
+					DB_WINDOW_W, DB_WINDOW_H);
+			XML_StopParser(p, XML_FALSE);
+			return;
+		}
+		db_dbg("Map size:  %dx%d px", map->w,  map->h);
+		db_dbg("Tile size: %dx%d px", map->tw, map->th);
+		/* Get and check background color */
+		db_xml_get_string_attr(p, attr, "backgroundcolor",
+				&backgroundcolor, 1);
+		if (sscanf(backgroundcolor, "#%02x%02x%02x",
+					&bg_r, &bg_g, &bg_b) != 3) {
+			db_err("Background color must be \"#xxxxxx\"");
+			XML_StopParser(p, XML_FALSE);
+			return;
+		}
+		map->bg_r = bg_r;
+		map->bg_g = bg_g;
+		map->bg_b = bg_b;
+		db_dbg("Map background color: (0x%02x, 0x%02x, 0x%02x)",
+				map->bg_r, map->bg_g, map->bg_b);
+		db_xml_node_push(p, map, _db_tmx_map_el_start,
 				_db_tmx_map_end, NULL);
 	} else {
 		db_xml_unexpected_start_tag(p, name, "map");