test entities for world collision

[blank.git] / src / world / chunk.cpp

diff --git a/src/world/chunk.cpp b/src/world/chunk.cpp
index c114526ba46cdace3204acb226189cb0af671d27..2216617ec52aac4dc59b317329d2103da84d872a 100644 (file)
--- a/src/world/chunk.cpp
+++ b/src/world/chunk.cpp
@@ -481,6 +481,30 @@ bool Chunk::Intersection(
        }
 }
 
+bool Chunk::Intersection(
+       const AABB &box,
+       const glm::mat4 &Mbox,
+       const glm::mat4 &Mchunk
+) const noexcept {
+       if (!blank::Intersection(box, Mbox, Bounds(), Mchunk)) {
+               return false;
+       }
+       for (int idx = 0, z = 0; z < depth; ++z) {
+               for (int y = 0; y < height; ++y) {
+                       for (int x = 0; x < width; ++x, ++idx) {
+                               const BlockType &type = Type(idx);
+                               if (!type.visible) {
+                                       continue;
+                               }
+                               if (type.shape->Intersects(Mchunk * ToTransform(Pos(x, y, z), idx), box, Mbox)) {
+                                       return true;
+                               }
+                       }
+               }
+       }
+       return false;
+}
+
 
 namespace {