Code to alter/check feature properties in Lua.

This commit moves str_to_fprop from initfile.cc to fprop.cc. It also
introduces two new dungeon Lua wrappers: fprop_changed(x, y, fprop),
and fprop_at(x, y, fprop).

fprop_at(x, y, fprop) will return testbits(coord_def(x, y), fprop).

fprop_changed will either add the fprop to that location, or if it
already exists there, it will remove it from that location. It will
returrn a boolean value of true if it altered the location, and false if
it did nothing.

1 files changed, 18 insertions, 0 deletions

diff --git a/crawl-ref/source/fprop.cc b/crawl-ref/source/fprop.cc
index 50023409d0..5ab09c5279 100644
--- a/crawl-ref/source/fprop.cc
+++ b/crawl-ref/source/fprop.cc
@@ -23,3 +23,21 @@ bool is_bloodcovered(const coord_def& p)
 {
     return (testbits(env.pgrid(p), FPROP_BLOODY));
 }
+
+int str_to_fprop ( const std::string &str)
+{
+    if (str == "bloody")
+        return (FPROP_BLOODY);
+    if (str == "no_cloud_gen")
+        return (FPROP_NO_CLOUD_GEN);
+    if (str == "no_rtele_into")
+        return (FPROP_NO_RTELE_INTO);
+    if (str == "no_ctele_into")
+        return (FPROP_NO_CTELE_INTO);
+    if (str == "no_tele_into")
+        return (FPROP_NO_TELE_INTO);
+
+    return (FPROP_NONE);
+}
+
+