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(svn r2595) -Codechange: Introduced "IsSteepTileh" to find whether a tile is steep

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(i.e. spans two height levels) and use it throughout the code.
-Codechange: Add CanBuildDepotByTileh to find if a tile is suitable to
build a depot on it. Wraps some bitmagic which seems quite unreadable at
first glance
This commit is contained in:
celestar
2005-07-16 23:47:37 +00:00
parent 594dd34e84
commit de19186be3
11 changed files with 87 additions and 19 deletions
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4
tunnelbridge_cmd.c
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@@ -88,7 +88,7 @@ enum {
*/
static uint32 CheckBridgeSlope(uint direction, uint tileh, bool is_start_tile)
{
if (!(tileh & 0x10)) { // disable building on very steep slopes
if (!IsSteepTileh(tileh)) { // disable building on very steep slopes
if (is_start_tile) {
/* check slope at start tile
@@ -981,7 +981,7 @@ static void DrawBridgePillars(TileInfo *ti, int x, int y, int z)
p = _tileh_bits[(image & 1) * 2 + (ti->map5&0x01)];
front_height = ti->z + ((ti->tileh & p[0])?8:0);
back_height = ti->z + ((ti->tileh & p[1])?8:0);
if (ti->tileh & 0x10) {
if (IsSteepTileh(ti->tileh)) {
if (!(ti->tileh & p[2])) front_height += 8;
if (!(ti->tileh & p[3])) back_height += 8;
}