diff options
Diffstat (limited to 'engines/fullpipe/motion.cpp')
| -rw-r--r-- | engines/fullpipe/motion.cpp | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/engines/fullpipe/motion.cpp b/engines/fullpipe/motion.cpp index a7726f3725..da0c614e72 100644 --- a/engines/fullpipe/motion.cpp +++ b/engines/fullpipe/motion.cpp @@ -230,9 +230,39 @@ int MovGraph::method50() { } double MovGraph::calcDistance(Common::Point *point, MovGraphLink *link, int flag) { - warning("STUB: MovGraph::calcDistance()"); + int n1x = link->_movGraphNode1->_x; + int n1y = link->_movGraphNode1->_y; + int n2x = link->_movGraphNode2->_x; + int n2y = link->_movGraphNode2->_y; + double dist1x = (double)(point->x - n1x); + double dist1y = (double)(n1y - point->y); + double dist2x = (double)(n2x - n1x); + double dist2y = (double)(n2y - n1y); + double dist1 = sqrt(dist1y * dist1y + dist1x * dist1x); + double dist2 = ((double)(n1y - n2y) * dist1y + dist2x * dist1x) / link->_distance / dist1; + double distm = dist2 * dist1; + double res = sqrt(1.0 - dist2 * dist2) * dist1; + + if (dist2 <= 0.0 || distm >= link->_distance) { + if (flag) { + if (dist2 > 0.0) { + if (distm >= link->_distance) { + point->x = n2x; + point->y = n2y; + } + } else { + point->x = n1x; + point->y = n1y; + } + } else { + return -1.0; + } + } else { + point->x = n1x + (dist2x * distm / link->_distance); + point->y = n1y + (dist2y * distm / link->_distance); + } - return 0; + return res; } int MovGraph2::getItemIndexByGameObjectId(int objectId) { |