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using System;
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using Duality;
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namespace Steering
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{
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/// <summary>
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/// This interface should but doesn't need to be used by implementations of <see cref="IAgentCharacteristics"/>.
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/// It defines which directions of velocities an agent preferes aka in which direction is the target of the agent
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/// </summary>
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public interface ISteeringTarget
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{
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/// <summary>
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/// Evaluates the cost function for a given velocity direction.
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/// </summary>
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/// <param name="agent">The agent for which the cost should be evaluated</param>
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/// <param name="sampleDirection">
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/// The direction for which the cost should be evaluated
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/// This NOT the velocity but only the direction (vector is normalized) of it.
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/// </param>
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/// <returns>Cost for the given velocity which should be between 0 and 1</returns>
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float CalculateCost(Agent agent, Vector2 sampleDirection);
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}
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}
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