Add one decimal place to SI velocities

data/language/english_uk.txt

@@ -3921,7 +3921,7 @@ STR_5579    :Window scale factor:
 STR_5580    :Czech koruna (Kc)
 STR_5581    :Show FPS
 STR_5582    :Trap mouse cursor in window
-STR_5583    :{COMMA16}ms{POWERNEGATIVEONE}
+STR_5583    :{COMMA1DP16}ms{POWERNEGATIVEONE}
 STR_5584    :SI
 
 #####################

src/localisation/format_codes.h

@@ -134,6 +134,7 @@ enum {
 	FORMAT_SYMBOL_RAILWAY = 20001,
 	FORMAT_SYMBOL_ROAD = 20002,
 	FORMAT_SYMBOL_FLAG = 20003,
+	FORMAT_COMMA1DP16 = 20004
 };
 
 #endif

src/localisation/localisation.c

@@ -109,7 +109,8 @@ format_code_token format_code_tokens[] = {
 	{ FORMAT_SMALLUP,					"SMALLUP"				},
 	{ FORMAT_SMALLDOWN,					"SMALLDOWN"				},
 	{ FORMAT_LEFT,						"LEFT"					},
-	{ FORMAT_INVERTEDQUESTION,			"INVERTEDQUESTION"		}
+	{ FORMAT_INVERTEDQUESTION,			"INVERTEDQUESTION"		},
+	{ FORMAT_COMMA1DP16,				"COMMA1DP16"			}
 };
 
 uint32 format_get_code(const char *token)
@@ -275,6 +276,71 @@ void format_comma_separated_integer(char **dest, long long value)
 	*dest = finish;
 }
 
+void format_comma_separated_fixed_1dp(char **dest, long long value)
+{
+	int digit, groupIndex;
+	char *dst = *dest;
+	char *finish;
+	char tmp;
+	const char *commaMark = language_get_string(5151);
+	const char *decimalMark = language_get_string(5152);
+	const char *ch;
+
+	// Negative sign
+	if (value < 0) {
+		*dst++ = '-';
+		value = -value;
+	}
+
+	*dest = dst;
+
+	// One decimal place
+	digit = value % 10;
+	value /= 10;
+	*dst++ = '0' + digit;
+
+	ch = decimalMark;
+	while (*ch != 0) {
+		*dst++ = *ch++;
+	}
+
+	if (value == 0) {
+		*dst++ = '0';
+	} else {
+		// Groups of three digits, right to left
+		groupIndex = 0;
+		while (value > 0) {
+			// Append group separator
+			if (groupIndex == 3) {
+				groupIndex = 0;
+
+				ch = commaMark;
+				while (*ch != 0) {
+					*dst++ = *ch++;
+				}
+			}
+
+			digit = value % 10;
+			value /= 10;
+
+			*dst++ = '0' + digit;
+			groupIndex++;
+		}
+	}
+	finish = dst;
+
+	// Reverse string
+	dst--;
+	while (*dest < dst) {
+		tmp = **dest;
+		**dest = *dst;
+		*dst = tmp;
+		(*dest)++;
+		dst--;
+	}
+	*dest = finish;
+}
+
 void format_comma_separated_fixed_2dp(char **dest, long long value)
 {
 	int digit, groupIndex;
@@ -461,7 +527,7 @@ void format_velocity(char **dest, uint16 value)
 		stringId = STR_UNIT_SUFFIX_KILOMETRES_PER_HOUR;
 		break;
 	case MEASUREMENT_FORMAT_SI:
-		value = mph_to_mps(value);
+		value = mph_to_dmps(value);
 		stringId = STR_UNIT_SUFFIX_METRES_PER_SECOND;
 		break;
 	}
@@ -517,7 +583,7 @@ void format_realtime(char **dest, uint16 value)
 	(*dest)--;
 }
 
-void format_string_code(unsigned char format_code, char **dest, char **args)
+void format_string_code(unsigned int format_code, char **dest, char **args)
 {
 	int value;
 
@@ -543,6 +609,13 @@ void format_string_code(unsigned char format_code, char **dest, char **args)
 
 		format_comma_separated_fixed_2dp(dest, value);
 		break;
+		case FORMAT_COMMA1DP16:
+		// Pop argument
+		value = *((sint16*)*args);
+		*args += 2;
+
+		format_comma_separated_fixed_1dp(dest, value);
+		break;
 	case FORMAT_COMMA16:
 		// Pop argument
 		value = *((sint16*)*args);
@@ -676,7 +749,7 @@ void format_string_part_from_raw(utf8 **dest, const utf8 *src, char **args)
 			}
 		} else if (code <= 'z') {
 			*(*dest)++ = code;
-		} else if (code < 142) {
+		} else if (code < 142 || code == FORMAT_COMMA1DP16) {
 			format_string_code(code, dest, args);
 		} else {
 			*dest = utf8_write_codepoint(*dest, code);

src/util/util.c

@@ -43,10 +43,10 @@ int mph_to_kmph(int mph)
 	return (mph * 1648) >> 10;
 }
 
-int mph_to_mps(int mph)
+int mph_to_dmps(int mph)
 {
-	// 1 mph = 0.44704 m/s
-	return (mph * 58594) >> 17;
+	// 1 mph = 4.4704 decimeters/s
+	return (mph * 73243) >> 14;
 }
 
 bool filename_valid_characters(const utf8 *filename)

src/util/util.h

@@ -26,7 +26,7 @@
 int squaredmetres_to_squaredfeet(int squaredMetres);
 int metres_to_feet(int metres);
 int mph_to_kmph(int mph);
-int mph_to_mps(int mph);
+int mph_to_dmps(int mph);
 
 bool filename_valid_characters(const utf8 *filename);