56 lines
1.7 KiB
C#
56 lines
1.7 KiB
C#
using Godot;
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namespace ColdMint.scripts.utils;
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/// <summary>
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/// <para>ParabolicUtils</para>
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/// <para>抛物线工具</para>
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/// </summary>
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public static class ParabolicUtils
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{
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/// <summary>
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/// <para>Calculated parabola</para>
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/// <para>计算抛物线</para>
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/// </summary>
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/// <param name="origin">
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///<para>Origin of coordinates</para>
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///<para>坐标的原点</para>
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/// </param>
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/// <param name="velocityVector">
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///<para>speed</para>
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///<para>速度</para>
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/// <para>Represents the distance traveled per second</para>
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/// <para>表示每秒移动的距离</para>
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/// </param>
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/// <param name="gravity">
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///<para>gravity</para>
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///<para>重力</para>
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/// </param>
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/// <param name="steps">
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///<para>Sampling step size</para>
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///<para>采样步长</para>
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/// <para>How many seconds to take a point</para>
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/// <para>多少秒取一次点</para>
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/// </param>
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/// <returns></returns>
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public static Vector2[] ComputeParabolic(Vector2 origin, Vector2 velocityVector, float gravity, float steps)
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{
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// 计算采样点数量
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var numSteps = Mathf.CeilToInt(1f / steps);
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// 初始化结果数组
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var points = new Vector2[numSteps];
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// 计算每个采样点的位置
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for (var i = 0; i < numSteps; i++)
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{
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// 计算当前时间
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var t = i * steps;
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// 计算当前位置
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var x = origin.X + velocityVector.X * t;
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var y = origin.Y + velocityVector.Y * t + 0.5f * gravity * t * t;
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// 将位置添加到结果数组中
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points[i] = new Vector2(x, y);
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}
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return points;
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}
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} |