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Code Issues Releases Wiki Activity

signed varint fixes

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This commit is contained in:
Robin Appelman 2021-07-20 23:15:14 +02:00
commit 67ea45433a
1 changed files with 23 additions and 9 deletions
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32
src/demo/sendprop.rs
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@ -953,6 +953,13 @@ fn test_send_prop_value_roundtrip() {
definition: FloatDefinition::CoordMP, definition: FloatDefinition::CoordMP,
}, },
); );
send_prop_value_roundtrip(
SendPropValue::Integer(-1),
SendPropParseDefinition::NormalVarInt {
changes_often: false,
unsigned: false,
},
);
} }
impl From<i32> for SendPropValue { impl From<i32> for SendPropValue {
@ -1096,8 +1103,8 @@ pub fn write_var_int(
signed: bool, signed: bool,
) -> ReadResult<()> { ) -> ReadResult<()> {
let abs = if signed { let abs = if signed {
let sign = int < 0; let int = (int << 1) ^ -(int & 1);
(int.abs() as u32) << 1 | (sign as u32) u32::from_le_bytes(int.to_le_bytes())
} else { } else {
int as u32 int as u32
}; };
@ -1128,13 +1135,20 @@ fn test_var_int_roundtrip() {
var_int_roundtrip(12354, false); var_int_roundtrip(12354, false);
var_int_roundtrip(123125412, false); var_int_roundtrip(123125412, false);
var_int_roundtrip(-0, false); var_int_roundtrip(0, true);
var_int_roundtrip(-1, false); var_int_roundtrip(1, true);
var_int_roundtrip(-10, false); var_int_roundtrip(10, true);
var_int_roundtrip(-55, false); var_int_roundtrip(55, true);
var_int_roundtrip(-355, false); var_int_roundtrip(355, true);
var_int_roundtrip(-12354, false); var_int_roundtrip(12354, true);
var_int_roundtrip(-123125412, false); var_int_roundtrip(123125412, true);
var_int_roundtrip(-0, true);
var_int_roundtrip(-1, true);
var_int_roundtrip(-10, true);
var_int_roundtrip(-55, true);
var_int_roundtrip(-355, true);
var_int_roundtrip(-12354, true);
var_int_roundtrip(-123125412, true);
} }
pub fn read_bit_coord(stream: &mut Stream) -> ReadResult<f32> { pub fn read_bit_coord(stream: &mut Stream) -> ReadResult<f32> {