From cafa36b0e3121efb83b9b02f60ea2f35194b98b0 Mon Sep 17 00:00:00 2001
From: Jacob Nevins <jacobn@chiark.greenend.org.uk>
Date: Sun, 23 Sep 2018 16:36:24 +0100
Subject: [PATCH] Net: rename 'loop' to 'err' in UI code.

In preparation for highlighting other kinds of errors.
No intended functional change.
---
 net.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/net.c b/net.c
index f26b5d7..905297d 100644
--- a/net.c
+++ b/net.c
@@ -34,11 +34,11 @@
 #define D 0x08
 #define LOCKED 0x10
 #define ACTIVE 0x20
-#define RLOOP (R << 6)
-#define ULOOP (U << 6)
-#define LLOOP (L << 6)
-#define DLOOP (D << 6)
-#define LOOP(dir) ((dir) << 6)
+#define RERR (R << 6)
+#define UERR (U << 6)
+#define LERR (L << 6)
+#define DERR (D << 6)
+#define ERR(dir) ((dir) << 6)
 
 /* Rotations: Anticlockwise, Clockwise, Flip, general rotate */
 #define A(x) ( (((x) & 0x07) << 1) | (((x) & 0x08) >> 3) )
@@ -76,7 +76,7 @@ enum {
     COL_ENDPOINT,
     COL_POWERED,
     COL_BARRIER,
-    COL_LOOP,
+    COL_ERR,
     NCOLOURS
 };
 
@@ -1979,7 +1979,7 @@ static int *compute_loops_inner(int w, int h, int wrapping,
                     OFFSETWH(x1, y1, x, y, dir, w, h);
                     if ((tiles[y1*w+x1] & F(dir)) &&
                         findloop_is_loop_edge(fls, y*w+x, y1*w+x1))
-                        flags |= LOOP(dir);
+                        flags |= ERR(dir);
                 }
             }
             loops[y*w+x] = flags;
@@ -2513,11 +2513,11 @@ static float *game_colours(frontend *fe, int *ncolours)
     ret[COL_BARRIER * 3 + 2] = 0.0F;
 
     /*
-     * Highlighted loops are red as well.
+     * Highlighted errors are red as well.
      */
-    ret[COL_LOOP * 3 + 0] = 1.0F;
-    ret[COL_LOOP * 3 + 1] = 0.0F;
-    ret[COL_LOOP * 3 + 2] = 0.0F;
+    ret[COL_ERR * 3 + 0] = 1.0F;
+    ret[COL_ERR * 3 + 1] = 0.0F;
+    ret[COL_ERR * 3 + 2] = 0.0F;
 
     /*
      * Unpowered endpoints are blue.
@@ -2556,7 +2556,7 @@ static void rotated_coords(float *ox, float *oy, const float matrix[4],
 #define TILE_KEYBOARD_CURSOR      (1<<8) /* 1 bit if cursor is here */
 #define TILE_WIRE_SHIFT               9  /* 8 bits: RR UU LL DD
                                           * Each pair: 0=no wire, 1=unpowered,
-                                          * 2=powered, 3=loop err highlight */
+                                          * 2=powered, 3=error highlight */
 #define TILE_ENDPOINT_SHIFT          17  /* 2 bits: 0=no endpoint, 1=unpowered,
                                           * 2=powered, 3=power-source square */
 #define TILE_WIRE_ON_EDGE_SHIFT      19  /* 8 bits: RR UU LL DD,
@@ -2705,7 +2705,7 @@ static void draw_tile(drawing *dr, game_drawstate *ds, int x, int y,
         for (pass = 0; pass < 2; pass++) {
             int x, y, w, h;
             int col = (pass == 0 || edgetype == 1 ? COL_WIRE :
-                       edgetype == 2 ? COL_POWERED : COL_LOOP);
+                       edgetype == 2 ? COL_POWERED : COL_ERR);
             int halfwidth = pass == 0 ? 2*LINE_THICK-1 : LINE_THICK-1;
 
             if (X(d) < 0) {
@@ -2757,7 +2757,7 @@ static void draw_tile(drawing *dr, game_drawstate *ds, int x, int y,
     draw_wires(dr, cx, cy, radius, tile,
                0x4, COL_POWERED, LINE_THICK-1, matrix);
     draw_wires(dr, cx, cy, radius, tile,
-               0x8, COL_LOOP, LINE_THICK-1, matrix);
+               0x8, COL_ERR, LINE_THICK-1, matrix);
 
     /*
      * Draw the central box.
@@ -2915,7 +2915,7 @@ static void game_redraw(drawing *dr, game_drawstate *ds,
                 }
 
                 if (t & d) {
-                    int edgeval = (t & LOOP(d) ? 3 : t & ACTIVE ? 2 : 1);
+                    int edgeval = (t & ERR(d) ? 3 : t & ACTIVE ? 2 : 1);
                     todraw(ds, dx, dy) |= edgeval << (TILE_WIRE_SHIFT + dsh*2);
                     if (!(gx == tx && gy == ty)) {
                         todraw(ds, dx + X(d), dy + Y(d)) |=