commit e976b1c0099fcad6377ff72fa3daa78b3e45182c
Author:     Fabian Greffrath <fabian@greffrath.com>
AuthorDate: Thu Apr 23 20:24:06 2026 +0200
Commit:     GitHub <noreply@github.com>
CommitDate: Thu Apr 23 20:24:06 2026 +0200

    Allow spawn angle of `an=8192` (= 360 deg) (#1791)

    The `finesine[]` array has 10240 elements and thus fits, but
    `finecosine` is actually a pointer pointing 2048 elements into the
    `finesine[]` array, so its 8192th element will point exactly one
    element past the `finesine[]` array and end up pointing to the
    `tantoangle[0]` element.

    https://www.doomworld.com/forum/topic/158042-tool-unexpected-angle-error-fixer/
---
 src/doom/g_game.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/doom/g_game.c b/src/doom/g_game.c
index 78bce280..42587121 100644
--- a/src/doom/g_game.c
+++ b/src/doom/g_game.c
@@ -1254,6 +1254,10 @@ G_CheckSpot
                 xa = finecosine[an];
                 ya = finesine[an];
                 break;
+            case 8192:  // 360 deg:
+                xa = tantoangle[0];        // finecosine[8192]
+                ya = finesine[8192];       // finesine[8192]
+                break;
             default:
                 I_Error("G_CheckSpot: unexpected angle %d\n", an);
                 xa = ya = 0;