Action: Don't need the owner in the constructor. Factory function to create a child.

[python-bulletml.git] / bulletml / __init__.py

diff --git a/bulletml/__init__.py b/bulletml/__init__.py
index 1e0fcdf..c31dce7 100644 (file)
--- a/bulletml/__init__.py
+++ b/bulletml/__init__.py
@@ -1,10 +1,46 @@
 """BulletML parser.
 
-http://www.asahi-net.or.jp/~cs8k-cyu/bulletml/index_e.html
+BulletML is the Bullet Markup Language. BulletML can describe the
+barrage of bullets in shooting games. (For example Progear, Psyvariar,
+Gigawing2, G DARIUS, XEVIOUS, ...) This module parses and executes
+BulletML scripts in Python. All data structures in it are
+renderer-agnostic.
+
+In addition to the standard BulletML XML format, this module supports
+an equivalent YAML format. See bulletml.bulletyaml for more details.
+
+Finally, two simple collision routines are provided, bulletml.overlaps
+for stationary circles and bulletml.collides for moving circles.
+
+More information is available at the BulletML homepage,
+http://www.asahi-net.or.jp/~cs8k-cyu/bulletml/index_e.html, or the
+python-bullet homepage, http://code.google.com/p/python-bulletml/.
+
+Basic Usage:
+
+    from bulletml import Bullet, BulletML
+    doc = Bulletml.BulletML.FromDocument(open("test.xml", "rU"))
+    player = ...  # On your own here, but it needs x and y fields.
+    rank = 0.5    # Player difficulty, 0 to 1
+    bullet = Bullet.FromDocument(doc, x, y, target=player, rank=rank)
+    bullets = [bullet]
+    ...
+    for bullet in bullets:
+        bullets.extend(bullet.step())
+    ...
+
+For drawing, you're on your own, but Bullet instances have a number of
+attributes that can be used to influence it.
+
 """
 
 from bulletml.parser import BulletML
-from bulletml.impl import Bullet, Action
+from bulletml.impl import Bullet
+from bulletml.collision import overlaps, collides
 
-VERSION = (1, 0)
+VERSION = (1,)
 VERSION_STRING = ".".join(map(str, VERSION))
+
+__all__ = ["VERSION", "VERSION_STRING", "Bullet", "BulletML",
+           "overlaps", "collides"]
+