diff options
Diffstat (limited to 'engines/fullpipe')
| -rw-r--r-- | engines/fullpipe/motion.cpp | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/engines/fullpipe/motion.cpp b/engines/fullpipe/motion.cpp index da6a82ffeb..b49b297451 100644 --- a/engines/fullpipe/motion.cpp +++ b/engines/fullpipe/motion.cpp @@ -861,9 +861,45 @@ MovGraphLink *MovGraph2::findLink1(int x, int y, int idx, int fuzzyMatch) { } MovGraphLink *MovGraph2::findLink2(int x, int y) { - warning("STUB: MovGraphLink *MovGraph2::findLink2()"); + double mindist = 1.0e20; + MovGraphLink *res; - return 0; + for (ObList::iterator i = _links.begin(); i != _links.end(); ++i) { + assert(((CObject *)*i)->_objtype == kObjTypeMovGraphLink); + + MovGraphLink *lnk = (MovGraphLink *)*i; + + if (!(lnk->_flags & 0x20000000)) { + double n1x = lnk->_movGraphNode1->_x; + double n1y = lnk->_movGraphNode1->_y; + double n2x = lnk->_movGraphNode2->_x; + double n2y = lnk->_movGraphNode2->_y; + double n1dx = n1x - x; + double n1dy = n1y - y; + double dst1 = sqrt(n1dy * n1dy + n1dx * n1dx); + double coeff1 = ((n1y - n2y) * n1dy + (n2x - n1x) * n1dx) / lnk->_distance / dst1; + double dst3 = coeff1 * dst1; + double dst2 = sqrt(1.0 - coeff1 * coeff1) * dst1; + + if (coeff1 * dst1 < 0.0) { + dst3 = 0.0; + dst2 = sqrt(n1dy * n1dy + n1dx * n1dx); + } + if (dst3 > lnk->_distance) { + dst3 = lnk->_distance; + dst2 = sqrt((n2x - x) * (n2x - x) + (n2y - y) * (n2y - y)); + } + if (dst3 >= 0.0 && dst3 <= lnk->_distance && dst2 < mindist) { + mindist = dst2; + res = lnk; + } + } + } + + if (mindist < 1.0e20) + return res; + else + return 0; } double MovGraph2::findMinPath(LinkInfo *linkInfoSource, LinkInfo *linkInfoDest, Common::Array<MovGraphLink *> *listObj) { |