Mercurial > hg > openttd
changeset 8898:22854af8a4d0 draft
(svn r12665) -Codechange: make the internal speed <-> display speed conversions available to a bigger part of the code.
author | rubidium <rubidium@openttd.org> |
---|---|
date | Sat, 12 Apr 2008 10:00:52 +0000 |
parents | 723bed4b0900 |
children | 93068462f33c |
files | src/strings.cpp |
diffstat | 1 files changed, 21 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/src/strings.cpp +++ b/src/strings.cpp @@ -536,6 +536,26 @@ }, }; +/** + * Convert the given (internal) speed to the display speed. + * @param speed the speed to convert + * @return the converted speed. + */ +uint ConvertSpeedToDisplaySpeed(uint speed) +{ + return (speed * units[_opt_ptr->units].s_m) >> units[_opt_ptr->units].s_s; +} + +/** + * Convert the given display speed to the (internal) speed. + * @param speed the speed to convert + * @return the converted speed. + */ +uint ConvertDisplaySpeedToSpeed(uint speed) +{ + return ((speed << units[_opt_ptr->units].s_s) + units[_opt_ptr->units].s_m / 2) / units[_opt_ptr->units].s_m; +} + static char* FormatString(char* buff, const char* str, const int64* argv, uint casei, const char* last) { extern const char _openttd_revision[]; @@ -581,7 +601,7 @@ case SCC_VELOCITY: {// {VELOCITY} int64 args[1]; assert(_opt_ptr->units < lengthof(units)); - args[0] = GetInt32(&argv) * units[_opt_ptr->units].s_m >> units[_opt_ptr->units].s_s; + args[0] = ConvertSpeedToDisplaySpeed(GetInt32(&argv)); buff = FormatString(buff, GetStringPtr(units[_opt_ptr->units].velocity), args, modifier >> 24, last); modifier = 0; break;