diff options
Diffstat (limited to 'viewport.c')
| -rw-r--r-- | viewport.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/viewport.c b/viewport.c index 3dbd915eb..5db949401 100644 --- a/viewport.c +++ b/viewport.c @@ -1990,12 +1990,11 @@ static byte Check2x1AutoRail(int mode) // while dragging static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int method) { - int d; - byte b=6; - uint w,h; + HighLightStyle b; + uint w, h; - int dx = thd->selstart.x - (thd->selend.x&~0xF); - int dy = thd->selstart.y - (thd->selend.y&~0xF); + int dx = thd->selstart.x - (thd->selend.x & ~0xF); + int dy = thd->selstart.y - (thd->selend.y & ~0xF); w = myabs(dx) + 16; h = myabs(dy) + 16; @@ -2030,7 +2029,7 @@ static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int meth b = HT_LINE | HT_DIR_Y; x = thd->selstart.x; } else { // complicated direction - d = w - h; + int d = w - h; thd->selend.x = thd->selend.x & ~0xF; thd->selend.y = thd->selend.y & ~0xF; @@ -2093,18 +2092,22 @@ static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int meth thd->next_drawstyle = b; } -// while dragging +/** + * Selects tiles while dragging + * @param x X coordinate of end of selection + * @param y Y coordinate of end of selection + * @param method modifies the way tiles are selected. Possible + * methods are VPM_* in viewport.h */ void VpSelectTilesWithMethod(int x, int y, int method) { - int sx; - int sy; + int sx, sy; if (x == -1) { _thd.selend.x = -1; return; } - // allow drag in any rail direction + /* Special handling of drag in any (8-way) direction */ if (method == VPM_RAILDIRS || method == VPM_SIGNALDIRS) { _thd.selend.x = x; _thd.selend.y = y; @@ -2113,8 +2116,8 @@ void VpSelectTilesWithMethod(int x, int y, int method) } if (_thd.next_drawstyle == HT_POINT) { - x += 8; - y += 8; + x += TILE_SIZE / 2; + y += TILE_SIZE / 2; } sx = _thd.selstart.x; |