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/*
* Copyright (C) 2005 Benjamin Otte <otte@gnome.org>
*
* 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; either version 2, or (at your option)
* any later version.
*
* 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.
*
* $Id$
*/
#include "libgame/game-private.h"
#include <math.h>
#include "pacman-graphic.h"
enum {
PROP_0,
PROP_DIRECTION,
PROP_COLOR,
PROP_ANIMATE
};
static GameGraphicClass *parent_class = NULL;
static void
pacman_graphic_draw (GameGraphic *graphic, cairo_t *cr, const GameRectangle *area)
{
PacmanGraphic *pacman = PACMAN_GRAPHIC (graphic);
double mouth_direction = 0;
double mouth_open, eye_x = 0.5, eye_y = 0.25;
if (!pacman->animate) {
} else if (pacman->direction == GAME_DIRECTION_DOWN) {
mouth_direction = GAME_PI / 2;
eye_x = 0.25;
eye_y = 0.5;
} else if (pacman->direction == GAME_DIRECTION_LEFT) {
mouth_direction = GAME_PI;
} else if (pacman->direction == GAME_DIRECTION_UP) {
mouth_direction = 3 * GAME_PI / 2;
eye_x = 0.75;
eye_y = 0.5;
}
if (pacman->animate)
mouth_open = ABS (pacman->mouth_open);
else
mouth_open = 0.5;
game_color_as_cairo_source (cr, &pacman->color);
cairo_move_to (cr, 0.5, 0.5);
cairo_arc (cr, 0.5, 0.5, 0.45,
mouth_direction + mouth_open * GAME_PI / 4,
mouth_direction + 2 * GAME_PI - mouth_open * GAME_PI / 4);
cairo_line_to (cr, 0.5, 0.5);
cairo_fill_preserve (cr);
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
cairo_set_line_width (cr, 0.06);
cairo_stroke_preserve (cr);
cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
cairo_set_line_width (cr, 0.02);
cairo_stroke (cr);
/* eye */
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
cairo_arc (cr, eye_x, eye_y, 0.05, 0.0, 2 * GAME_PI);
cairo_fill (cr);
}
static void
pacman_graphic_get_property (GObject *object, guint param_id,
GValue *value, GParamSpec *pspec)
{
PacmanGraphic *graphic = PACMAN_GRAPHIC (object);
switch (param_id) {
case PROP_DIRECTION:
g_value_set_enum (value, graphic->direction);
break;
case PROP_ANIMATE:
g_value_set_boolean (value, graphic->animate);
break;
case PROP_COLOR:
g_value_set_boxed (value, &graphic->color);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
pacman_graphic_set_property (GObject *object, guint param_id,
const GValue *value, GParamSpec *pspec)
{
PacmanGraphic *graphic = PACMAN_GRAPHIC (object);
switch (param_id) {
case PROP_DIRECTION:
if (graphic->direction != (GameDirection) g_value_get_enum (value)) {
graphic->direction = g_value_get_enum (value);
game_graphic_invalidate (GAME_GRAPHIC (graphic));
}
break;
case PROP_ANIMATE:
graphic->animate = g_value_get_boolean (value);
game_graphic_invalidate (GAME_GRAPHIC (graphic));
break;
case PROP_COLOR:
graphic->color = *((GameColor *) g_value_get_boxed (value));
game_graphic_invalidate (GAME_GRAPHIC (graphic));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
pacman_graphic_tick (GameObject *object)
{
PacmanGraphic *pacman = PACMAN_GRAPHIC (object);
if (!pacman->animate)
return;
pacman->mouth_open += (double) game_game_get_frame_rate (object->game) / 250;
if (pacman->mouth_open >= 1.0)
pacman->mouth_open -= 2.0;
game_graphic_invalidate (GAME_GRAPHIC (pacman));
}
static void
pacman_graphic_class_init (gpointer g_class, gpointer class_data)
{
GObjectClass *object_class = G_OBJECT_CLASS (g_class);
GameObjectClass *gameobject_class = GAME_OBJECT_CLASS (g_class);
GameGraphicClass *graphic_class = GAME_GRAPHIC_CLASS (g_class);
parent_class = g_type_class_peek_parent (g_class);
object_class->set_property = pacman_graphic_set_property;
object_class->get_property = pacman_graphic_get_property;
g_object_class_install_property (object_class, PROP_DIRECTION,
g_param_spec_enum ("direction", _("direction"), _("direction last moved to"),
GAME_TYPE_DIRECTION, GAME_DIRECTION_NONE, G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_ANIMATE,
g_param_spec_boolean ("animate", _("animate"), _("set to animate graphic"),
TRUE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_COLOR,
g_param_spec_boxed ("color", _("color"), _("color in which to draw the pacman"),
GAME_TYPE_COLOR, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
gameobject_class->tick_priority = 0;
gameobject_class->tick_func = pacman_graphic_tick;
graphic_class->draw = pacman_graphic_draw;
}
static void
pacman_graphic_init (GTypeInstance *instance, gpointer g_class)
{
PacmanGraphic *pacman = PACMAN_GRAPHIC (instance);
pacman->mouth_open = 0.5;
}
GType
pacman_graphic_get_type ()
{
static GType graphic_type = 0;
if (!graphic_type) {
static const GTypeInfo graphic_info = {
sizeof (PacmanGraphicClass),
NULL,
NULL,
pacman_graphic_class_init,
NULL,
NULL,
sizeof (PacmanGraphic),
0,
pacman_graphic_init,
};
graphic_type = g_type_register_static (GAME_TYPE_GRAPHIC, "PacmanGraphic", &graphic_info, 0);
}
return graphic_type;
}
GameGraphic *
pacman_graphic_new (GameGame *game, const GameColor *color)
{
return GAME_GRAPHIC (game_game_add_object (game, PACMAN_TYPE_GRAPHIC,
"color", color, NULL));
}
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