implement tile wrapping

fixes #14
2014-03-05 09:40:32 +01:00
parent b0ddabd6ac
commit 027c6f33b3
9 changed files with 106 additions and 69 deletions
--- a/src/map/coverage.cpp
+++ b/src/map/coverage.cpp
@@ -69,11 +69,10 @@ std::forward_list<llmr::vec3<int32_t>> llmr::covering_tiles(int32_t zoom, const
    std::forward_list<vec3<int32_t>> tiles;

    auto scanLine = [&tiles, zoom](int32_t x0, int32_t x1, int32_t y, int32_t ymax) {
-        int32_t x, wx;
+        int32_t x;
        if (y >= 0 && y <= ymax) {
            for (x = x0; x < x1; x++) {
-                wx = (x + ymax) % ymax;
-                tiles.emplace_front(wx, y, zoom);
+                tiles.emplace_front(x, y, zoom);
            }
        }
    };