62 lines
2.4 KiB
C#
62 lines
2.4 KiB
C#
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using UnityEngine;
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using BehaviorDesigner.Runtime.Tasks;
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using Tooltip = BehaviorDesigner.Runtime.Tasks.TooltipAttribute;
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using HelpURL = BehaviorDesigner.Runtime.Tasks.HelpURLAttribute;
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namespace BehaviorDesigner.Runtime.Formations.Tasks
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{
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[TaskCategory("Formations")]
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[TaskDescription("Arrange the group in a triangle.")]
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[TaskIcon("Assets/Behavior Designer Formations/Editor/Icons/{SkinColor}TriangleIcon.png")]
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[HelpURL("https://www.opsive.com/support/documentation/behavior-designer-formations-pack/")]
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public class Triangle : NavMeshFormationGroup
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{
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[Tooltip("The length of the triangle")]
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public SharedFloat length = 5;
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private int[] agentsPerSide = new int[3];
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protected override void AddAgentToGroup(Behavior agent, int index)
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{
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base.AddAgentToGroup(agent, index);
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for (int i = 0; i < 3; ++i) {
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agentsPerSide[i] = agents.Count / 3 + (agents.Count % 3 > i ? 1 : 0);
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}
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}
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protected override int RemoveAgentFromGroup(Behavior agent)
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{
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var index = base.RemoveAgentFromGroup(agent);
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for (int i = 0; i < 3; ++i) {
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agentsPerSide[i] = agents.Count / 3 + (agents.Count % 3 > i ? 1 : 0);
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}
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return index;
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}
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protected override Vector3 TargetPosition(int index, float zLookAhead)
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{
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var side = index % 3;
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var lengthMultiplier = (index / 3) / (float)agentsPerSide[side];
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lengthMultiplier = 1 - (lengthMultiplier - (int)lengthMultiplier);
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var height = length.Value / 2 * Mathf.Sqrt(3); // Equilaterial triangle height
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var leaderTransform = leader.Value == null ? transform : leader.Value.transform;
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if (side == 0) { // Right
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return leaderTransform.TransformPoint(length.Value / 2 * lengthMultiplier, 0, -height * lengthMultiplier + zLookAhead);
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} else if (side == 1) { // Bottom
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return leaderTransform.TransformPoint(Mathf.Lerp(-length.Value / 2, length.Value / 2, lengthMultiplier), 0, -height + zLookAhead);
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} else { // Left
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return leaderTransform.TransformPoint(-length.Value / 2 * lengthMultiplier, 0, -height * lengthMultiplier + zLookAhead);
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}
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}
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public override void OnReset()
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{
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base.OnReset();
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length = 5;
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}
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}
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}
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