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45 Commits

Author SHA1 Message Date
Matthias Richter
f0aa1bf3d8 Fix #59: add HC.shapesAt(x,y) 2018-10-24 13:31:31 +02:00
Matthias Richter
7cac6db548 Fix #49 2018-04-08 14:35:15 +02:00
Matthias Richter
01e8e17b92 Simplify interface. HC is now immediate mode. 2015-10-09 23:09:35 +02:00
Matthias Richter
79c3d0abf8 Finally fix #28 - shapes not removed properly on 
A shape added with HC:add*() would be reintroduced to the spatial hash
after HC:remove() when any of shape:move(), shape:rotate() or
shape:scale() was called after the removal.
 2014-04-27 11:16:36 +02:00
Matthias Richter
5d100c703f Adhere to new class commons specs. 2013-07-21 12:51:35 +02:00
Matthias Richter
df3e163f9a [Fix] HC:remove(shape) does not remove from groups 2013-02-09 22:04:28 +01:00
Matthias Richter
8283c13cfb Add shape:inGroup() 2012-12-15 16:01:21 +01:00
Matthias Richter
8b30af1385 Refactor: Remove shape ids in main module. 2012-10-09 00:50:46 +02:00
Matthias Richter
ed495d3306 Report collisions immediately instead of collecting first. 
Collecting collisions and then reporting leads to confusing behavior
when a previous collision callback resolved the collision, e.g.
platforms in jump in runs pushing the player upwards when standing on
two platforms at the same time.
 2012-10-08 13:48:30 +02:00
Matthias Richter
de82e88ddf Add HC:shapesInRange(x1,y1, x2,y2) 
Returns a set of shapes that are enclosed in the rectangle
(x1,y1)-(x2,y2).
 2012-07-10 16:35:27 +02:00
Matthias Richter
317cce31c6 Add HC:addShape(shape). 
Shape must have at least two functions:
- shape:bbox()
  must return an axis aligned bounding box of the shape

- shape:collidesWith(other)
  must return false, ... if the two shapes do not collide
  must return true, sx, sy if the two shapes collide, where sx,sy is the
                           separation vector from from shape to other.

Convex shapes can use the supplied GJK algorithm. In that case the shape
must implement shape:support(dx,dy) which returns the point of the shape
that lies furthest in the direction of dx,dy.
 2012-07-10 16:29:59 +02:00
Matthias Richter
f1ad856da9 Remove Spatialhash:getNeighbors() in favor of :inRange() 2012-07-10 16:21:33 +02:00
Matthias Richter
1280b0a2d4 Use hash:rangeIter() in HC:update() 2012-07-10 16:19:27 +02:00
Matthias Richter
b20fc496eb Add shape:scale(s). 2012-07-05 17:30:13 +02:00
Matthias Richter
ea49f9df8b Issue #14: Remove usage of collision ID. 2012-06-10 14:24:30 +02:00
Matthias Richter
e03ea9b0a2 Spatial hash to use number instead of table arguments 2012-05-30 15:27:09 +02:00
Matthias Richter
5b12e72aae Switch to light vector module 2012-04-12 16:07:50 +02:00
Matthias Richter
8a182a902f Rename HC:testPoint to HC:shapesAt. More efficient implementation. 2012-03-05 10:37:36 +01:00
Matthias Richter
1fd4dff37e Merge remote-tracking branch 'technocat/master' 2012-03-05 10:32:51 +01:00
Matthias Richter
a7c65630ef Iterators for active and neighboring shapes. 2012-03-05 10:26:14 +01:00
Danny "TechnoCat" Fritz
b58631465c Added HC:testPoint(x, y) -- Test point for collisions with active objects. 2012-03-03 20:06:39 -06:00
Matthias Richter
ac27eee778 Fix HC:remove(shape, ...) to accept varargs. 2012-02-20 10:54:07 +01:00
Matthias Richter
940266e0dc Add shape:bbox(). Simplify hash aware functions 2012-02-11 19:38:09 +01:00
Matthias Richter
d8af7e3d2d Fix typo in HC:clear(): self._hash instead of self.hash. 2012-01-29 14:19:59 +01:00
Matthias Richter
c681391033 Fix triangulation. Use class-commons. Add hash:draw() 
Polygon triangulation bug:
In some cases Kongs triangulation algorithm produces triangles
with collinear points. The Polygon constructor removes one of
these and throws an error because there are not enough vertices.
Checking if the current points in a triangulation step are
collinear and discarding those triangles fixes the problem.

Class-commons lets you use any supporting class system as
backend for HC.

Add SpatialHash:draw() for debug purposes.
 2012-01-22 00:09:54 +01:00
Matthias Richter
ab08c5744b Silly me, Lua doesn't work this way 2011-11-13 16:00:08 +01:00
Matthias Richter
956df262d5 Avoid using module(). Make main module a class. 2011-11-13 14:15:46 +01:00
Matthias Richter
5aa6b335be Add HC.clear() 2011-08-12 13:00:54 +02:00
Matthias Richter
06dc6bed68 Merge start and persits callback. Add HC.setPassive 2011-06-03 18:06:42 +02:00
Matthias Richter
787c980fdd Add point shape 2011-02-26 17:27:04 +01:00
Matthias Richter
36fb13a69a SpatialHash to return set instead of array 2011-02-10 14:36:10 +01:00
Matthias Richter
7803b0c11b Fix bug: param `times' ignored in setAutoUpdate() 2011-02-07 19:02:41 +01:00
Matthias Richter
476907a516 Add number parameter to setAutoUpdate() 2011-02-07 17:38:22 +01:00
Matthias Richter
75ea879e90 Check for shape validity in main module and hide submodules 2011-02-06 00:25:20 +01:00
Matthias Richter
ec10437644 Performance tweaks 2011-02-02 21:04:00 +01:00
Matthias Richter
ae58b7e822 Add auto update hook 2011-02-01 23:39:59 +01:00
Matthias Richter
4a24422e54 Fix reference errors 2011-01-18 23:33:11 +01:00
Matthias Richter
b8c4462454 Rename file 2011-01-18 18:59:25 +01:00
Matthias Richter
f28685bc16 Make proper lua modules 2011-01-18 18:55:51 +01:00
Matthias Richter
e43125d4b8 Add groups and permeable shapes 2011-01-18 15:04:27 +01:00
Matthias Richter
d79755d11e Make main module agnostig of shape._type 2011-01-16 17:10:35 +01:00
Matthias Richter
4ceac7040a Rename adding functions 2011-01-14 23:25:24 +01:00
Matthias Richter
940fc40f8e Fix package path problem 2011-01-13 16:28:05 +01:00
Matthias Richter
7a67c3f924 Fix errors in spatial hash coordinates 2011-01-13 16:15:35 +01:00
Matthias Richter
3ad0242195 Initial commit 2011-01-13 14:38:36 +01:00