New character

Signed-off-by: Manuel Quiñones <manuq@laptop.org>

1 files changed, 113 insertions, 0 deletions

diff --git a/character.py b/character.py
new file mode 100644
index 0000000..9490f75
--- /dev/null
+++ b/character.py
@@ -0,0 +1,113 @@
+import gtk
+from gtk import gdk
+import gobject
+import cairo
+import rsvg
+
+
+class Sprite(object):
+    def __init__(self, svg_file, cel_width, cel_height, animation_data):
+        self.svg_file = svg_file
+        self.cel_width, self.cel_height = cel_width, cel_height
+        self.current_animation = None
+        self.flip_x = None
+
+        self._animation_data = animation_data
+        self._current_data = None
+        self._animation_index = None
+
+        self.load_svg()
+
+    def load_svg(self):
+        self._svg = rsvg.Handle(file=self.svg_file)
+
+    def change_animation(self, animation_name, flip_x=1):
+        self.current_animation = animation_name
+        self._current_data = self._animation_data[animation_name]
+        self._animation_index = 0
+        self.flip_x = flip_x
+        if flip_x == -1:
+            self._current_data = list(reversed(self._current_data))
+
+    def next_frame(self):
+        if self._animation_index + 1 == len(self._current_data):
+            self._animation_index = 0
+        else:
+            self._animation_index += 1
+
+    def draw(self, context, dx, dy):
+        cel_x, cel_y = self._current_data[self._animation_index]
+        context.scale(self.flip_x, 1)
+
+        context.translate(dx, dy)
+
+        context.translate(-cel_x * self.cel_width * self.flip_x,
+                          -cel_y * self.cel_height)
+        context.rectangle(cel_x * self.cel_width * self.flip_x,
+                          cel_y * self.cel_height,
+                          self.cel_width, self.cel_height)
+        if self.flip_x == -1:
+            context.translate(-900, 0)
+        context.clip()
+        self._svg.render_cairo(context)
+
+
+class Character(object):
+    def __init__(self, drawing_area):
+        super(Character, self).__init__()
+        self._drawing_area = drawing_area
+        self.speed = 10
+        animation_data = {
+            'stand': [(0, 0)],
+            'walk': [(1, 0), (2, 0), (3, 0), (4, 0),
+                     (5, 0), (6, 0), (7, 0), (8, 0)],
+        }
+        self.sprite = Sprite("images/char_walking.svg",
+                             100, 160, animation_data)
+        self.sprite.change_animation('walk')
+
+        self.pos = [0, 0]
+        self.direction = -1 # -1 for left, 1 for right
+
+    def update(self):
+        self.sprite.next_frame()
+
+        if self.direction == 1 and self.pos[0] > 600:
+            self.pos[0] += self.sprite.cel_width
+            self.direction = -1
+            self.sprite.change_animation('walk', -1)
+        elif self.direction == -1 and self.pos[0] < 0:
+            self.pos[0] -= self.sprite.cel_width
+            self.direction = 1
+            self.sprite.change_animation('walk')
+        else:
+            self.pos[0] += self.speed * self.direction
+        return (self.pos[0],
+                self.pos[1] - self.sprite.cel_height + 10,
+                self.sprite.cel_width, self.sprite.cel_height)
+
+    def draw(self, context):
+        # draw char
+        dx, dy = self.pos[0], \
+            self.pos[1] - self.sprite.cel_height + 10
+        self.sprite.draw(context, dx, dy)
+
+
+def main():
+    def _destroy_cb(widget, data=None):
+        gtk.main_quit()
+
+    window = gtk.Window()
+    window.resize(600, 160)
+    window.connect("destroy", _destroy_cb)
+    window.show()
+
+    draw = Character()
+    window.add(draw)
+    draw.show()
+
+    gtk.main()
+
+
+if __name__ == "__main__":
+    main()