diff --git a/src/control.h b/src/control.h
index 0296ad5..543b38c 100644
--- a/src/control.h
+++ b/src/control.h
@@ -1,6 +1,73 @@
 #ifndef _CONTROL_H
 #define _CONTROL_H
 
+#include <glib.h>
 
+typedef enum { ACCELERATING, ROLLING, BRAKING } accel_t;
+typedef enum { TURN_HARD_LEFT, TURN_LEFT, TURN_STRAIGT, TURN_RIGHT, TURN_HARD_RIGHT } turn_t;
+
+typedef enum { BOLDER, CRATER, MARTIAN } object_t;
+
+struct object;
+typedef struct object object;
+
+struct vehicle;
+typedef struct vehicle vehicle;
+
+struct telemetry;
+typedef struct telemetry telemetry;
+
+struct map;
+typedef struct map map;
+
+struct trial;
+typedef struct trial trial;
+
+typedef unsigned int timestamp;
+
+
+
+struct object {
+	object_t type;
+	double x, y, rad;
+	double dir, speed;
+};
+
+struct vehicle {
+	accel_t accel;
+	turn_t turn;
+	double x, y;
+	double dir, speed;
+};
+
+struct telemetry {
+	timestamp ts;
+	vehicle vehicle;
+	GArray objects;
+};
+
+struct map {
+	float dx, dy;
+	timestamp limit;
+	float min_sensor, max_sensor;
+	float max_speed, max_turn, max_turn_hard;
+
+	GList solid_objects;
+};
+
+struct trial {
+	map map;
+	timestamp last_ts;
+	GList telemetry_data;
+	vehicle vehicle; /* our view */
+};
+
+/* trial */
+trial *trial_new();
+void trial_reset_run(trial *trial);
+void trial_wait_for_start(trial *trial);
+void trial_check_input(trial *trial);
+void trial_wait_for_input(trial *trial);
+void trial_free(trial *trial);
 
 #endif
diff --git a/src/wscript b/src/wscript
index eba9e4e..0f2bcbc 100644
--- a/src/wscript
+++ b/src/wscript
@@ -13,4 +13,4 @@ def build(bld):
 	main.name = 'icfp08'
 	main.source = main_source
 	main.target = 'icfp08'
-	main.uselib += ''
+	main.uselib += 'glib'
diff --git a/wscript b/wscript
index 3ed4deb..651a295 100644
--- a/wscript
+++ b/wscript
@@ -9,6 +9,57 @@ APPNAME='icfp08'
 srcdir = '.'
 blddir = 'build'
 
+###########################
+import types
+
+def tolist(x):
+	if type(x) is types.ListType:
+		return x
+	return [x]
+
+def env_mod(conf, use):
+	types = [ 'LIB', 'STATICLIB', 'LIBPATH', 'CPPPATH', 'CXXDEFINES', 'CCFLAGS', 'CXXFLAGS', 'LINKFLAGS' ]
+	bak = {}
+	for t in types:
+		bak[t] = conf.env[t]
+		for u in use:
+			conf.env[t] = tolist(conf.env[t]) + tolist(conf.env['%s_%s' % (t, u)])
+	return bak
+
+def env_mod_revert(conf, bak):
+	for (k,v) in bak.items():
+		conf.env[k] = v
+
+def CHECK_INCLUDE_FILES(conf, header, define, uselib = '', path = None, mandatory = 0, use = []):
+	envbak = env_mod(conf, use)
+	hconf = conf.create_header_configurator()
+	hconf.mandatory = mandatory
+	hconf.name = header
+	hconf.uselib_store = uselib
+	hconf.define = define
+	if path: hconf.path += path
+	res = hconf.run()
+	env_mod_revert(conf, envbak)
+	return res
+
+def PKGCONFIG(conf, name, uselib = None, define = '', version = '', mandatory = 0):
+	if not uselib: uselib = name
+	hconf = conf.create_pkgconfig_configurator()
+	hconf.name = name
+	hconf.version = version
+	hconf.uselib_store = uselib
+	hconf.define = define
+	hconf.mandatory = mandatory
+	res = hconf.run()
+	return res
+
+###########################
+
+
+
+
+
+
 def set_options(opt):
 	opt.tool_options('compiler_cc')
 	opt.tool_options('ragel', tdir = '.')
@@ -22,6 +73,12 @@ def configure(conf):
 #		'-fPIC', '-D_GNU_SOURCE',
 		]
 	conf.env['CCFLAGS'] += common_ccflags
+	
+	PKGCONFIG(conf, "glib-2.0", uselib = 'glib', mandatory = 1)
+	incdir = conf.env['CPPPATH_glib'][0]
+	conf.env['CPPPATH_glib'] += [ incdir+'/glib-2.0/', incdir + '/glib-2.0/include/' ]
+	CHECK_INCLUDE_FILES(conf, "glib.h", "HAVE_GLIB_H", uselib = 'glib', use = ['glib'], mandatory = 1)
+
 
 def build(bld):
 	bld.add_subdirs('src')