Struct screeps::pathfinder::LocalCostMatrix
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pub struct LocalCostMatrix { /* fields omitted */ }
Methods
impl LocalCostMatrix
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pub fn new() -> Self
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pub fn set(&mut self, x: u8, y: u8, val: u8)
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pub fn get(&self, x: u8, y: u8) -> u8
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pub fn upload(&self) -> CostMatrix<'static>
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Copies all data into an JavaScript CostMatrix for use.
This is slower than as_uploaded
, but much safer.
pub unsafe fn as_uploaded<'a>(&'a self) -> CostMatrix<'a>
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Temporarily exposes the bits of this matrix as a cost matrix.
Unsafety
There are two main invariants you must uphold after using this function:
-
The
CostMatrix
can only be used in JS code as long as thisLocalCostMatrix
is alive. Doing otherwise will result in undefined behavior, mainly JS being allowed to read/ manipulate uninitialized rust memory or rust memory that's been repurposed. -
The
set
method of the cost matrix must not be used - it must be read only. This takes &self, but technically allows mutation of the inner Vec via JavaScript access. You should not use this method, or you will invoke Rust undefined behavior.
The CostMatrix returned will reference the internal data of this LocalCostMatrix
.
Trait Implementations
impl Serialize for LocalCostMatrix
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fn serialize<S>(&self, s: S) -> Result<S::Ok, S::Error> where
S: Serializer,
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S: Serializer,
Serialize this value into the given Serde serializer. Read more
impl<'de> Deserialize<'de> for LocalCostMatrix
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
D: Deserializer<'de>,
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D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
impl Clone for LocalCostMatrix
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fn clone(&self) -> LocalCostMatrix
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for LocalCostMatrix
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more