Rust-eze spotlight

Discovers a square area around the robot in an energy-efficient way, leaving the robot still.

illuminate discovers the tiles of a square area around the robot.

pub fn illuminate(
	robot: &mut impl Runnable,
	world: &mut World,
	distance: usize,
) -> Result<(), String>

Arguments

• robot: &mut impl Runnable
• world: &mut World
• distance: usize => distance from the robot to the edges of the square area.

Return

• Result<(), String> => Err(e) represents a possible error described by String e.

calculate_illuminate_cost calculates the energy required by illuminate to discover the square area with the given distance.

pub fn calculate_illuminate_cost(
	robot: &impl Runnable,
	world: &World,
	distance: usize,
) -> Result<usize, String>

Arguments

• robot: &impl Runnable
• world: &World
• distance: usize => distance from the robot to the edges of the square area.

Return

• Result<usize, String> => Ok(cost) indicates the required energy, Err(e) represents a possible error described by String e.