games/raycaster
1
0
Fork 0
Code Issues 30 Pull requests Projects Releases 2 Packages Wiki Activity Actions

Now also combat works no matter what's on the ground. Closes #81.

Browse source
This commit is contained in:
Zed A. Shaw 2025-08-09 00:13:38 -04:00
parent f84b63f0e6
commit 05d54ff661
5 changed files with 19 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

33
spatialmap.cpp
View file

@ -53,12 +53,7 @@ Entity SpatialMap::get(Point at) const {
return begin->second.entity;
}
/*
* Avoid doing work by using the dy,dx and confirming that
* at.x or at.y is > 0. If either is 0 then there can't be
* a neighbor since that's out of bounds.
*/
inline void find_neighbor(const PointEntityMap &table, EntityList &result, Point at, int dy, int dx) {
void SpatialMap::find_neighbor(EntityList &result, Point at, int dy, int dx) const {
// don't bother checking for cells out of bounds
if((dx < 0 && at.x <= 0) || (dy < 0 && at.y <= 0)) {
return;
@ -66,11 +61,11 @@ inline void find_neighbor(const PointEntityMap &table, EntityList &result, Point
Point cell = {at.x + dx, at.y + dy};
// Bug #81, should actually for-loop through these and only add ones with collision
auto it = table.find(cell);
if (it != table.end()) {
result.insert(result.end(), it->second.entity);
}
auto entity = find(cell, [&](auto data) {
return data.collision;
});
if(entity != DinkyECS::NONE) result.push_back(entity);
}
FoundEntities SpatialMap::neighbors(Point cell, bool diag) const {
@ -78,16 +73,16 @@ FoundEntities SpatialMap::neighbors(Point cell, bool diag) const {
// just unroll the loop since we only check four directions
// this also solves the problem that it was detecting that the cell was automatically included as a "neighbor" but it's not
find_neighbor($collision, result, cell, 0, 1); // north
find_neighbor($collision, result, cell, 0, -1); // south
find_neighbor($collision, result, cell, 1, 0); // east
find_neighbor($collision, result, cell, -1, 0); // west
find_neighbor(result, cell, 0, 1); // north
find_neighbor(result, cell, 0, -1); // south
find_neighbor(result, cell, 1, 0); // east
find_neighbor(result, cell, -1, 0); // west
if(diag) {
find_neighbor($collision, result, cell, 1, -1); // south east
find_neighbor($collision, result, cell, -1, -1); // south west
find_neighbor($collision, result, cell, 1, 1); // north east
find_neighbor($collision, result, cell, -1, 1); // north west
find_neighbor(result, cell, 1, -1); // south east
find_neighbor(result, cell, -1, -1); // south west
find_neighbor(result, cell, 1, 1); // north east
find_neighbor(result, cell, -1, 1); // north west
}
return {!result.empty(), result};