372 lines
11 KiB
C#
372 lines
11 KiB
C#
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#if GRIFFIN
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using System.Collections.Generic;
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using UnityEngine;
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namespace Pinwheel.Griffin.StampTool
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{
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[System.Serializable]
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[ExecuteInEditMode]
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public class GGeometryStamper : MonoBehaviour
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{
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public enum GStampChannel
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{
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Elevation, Visibility
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}
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[SerializeField]
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private bool enableTerrainMask = true;
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public bool EnableTerrainMask
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{
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get
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{
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return enableTerrainMask;
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}
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set
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{
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enableTerrainMask = value;
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}
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}
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[SerializeField]
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private int groupId;
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public int GroupId
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{
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get
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{
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return groupId;
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}
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set
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{
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groupId = value;
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}
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}
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[SerializeField]
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private Vector3 position;
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public Vector3 Position
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{
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get
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{
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return position;
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}
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set
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{
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position = value;
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transform.position = value;
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}
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}
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[SerializeField]
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private Quaternion rotation;
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public Quaternion Rotation
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{
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get
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{
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return rotation;
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}
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set
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{
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rotation = value;
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transform.rotation = value;
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}
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}
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[SerializeField]
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private Vector3 scale;
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public Vector3 Scale
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{
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get
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{
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return scale;
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}
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set
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{
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scale = value;
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transform.localScale = value;
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}
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}
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[SerializeField]
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private Texture2D stamp;
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public Texture2D Stamp
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{
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get
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{
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return stamp;
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}
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set
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{
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stamp = value;
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}
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}
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[SerializeField]
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private GStampChannel channel;
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public GStampChannel Channel
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{
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get
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{
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return channel;
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}
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set
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{
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channel = value;
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}
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}
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[SerializeField]
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private AnimationCurve falloff;
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public AnimationCurve Falloff
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{
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get
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{
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return falloff;
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}
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set
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{
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falloff = value;
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}
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}
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[SerializeField]
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private bool inverseStamp;
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public bool InverseStamp
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{
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get
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{
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return inverseStamp;
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}
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set
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{
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inverseStamp = value;
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}
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}
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[SerializeField]
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private bool useFalloffAsBlendFactor;
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public bool UseFalloffAsBlendFactor
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{
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get
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{
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return useFalloffAsBlendFactor;
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}
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set
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{
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useFalloffAsBlendFactor = value;
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}
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}
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[SerializeField]
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private GStampOperation operation;
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public GStampOperation Operation
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{
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get
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{
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return operation;
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}
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set
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{
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operation = value;
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}
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}
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[SerializeField]
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private float lerpFactor;
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public float LerpFactor
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{
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get
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{
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return lerpFactor;
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}
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set
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{
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lerpFactor = Mathf.Clamp01(value);
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}
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}
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[SerializeField]
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private int additionalMeshResolution;
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public int AdditionalMeshResolution
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{
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get
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{
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return additionalMeshResolution;
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}
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set
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{
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additionalMeshResolution = Mathf.Clamp(value, 0, 10);
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}
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}
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private Texture2D falloffTexture;
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public Rect Rect
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{
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get
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{
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Vector3[] quad = new Vector3[4];
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GetQuad(quad);
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Rect r = GUtilities.GetRectContainsPoints(quad);
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return r;
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}
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}
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private void Reset()
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{
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position = Vector3.zero;
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rotation = Quaternion.identity;
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scale = Vector3.one * 100;
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stamp = null;
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falloff = AnimationCurve.EaseInOut(0, 1, 1, 0);
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inverseStamp = false;
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useFalloffAsBlendFactor = true;
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operation = GStampOperation.Max;
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lerpFactor = 0.5f;
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additionalMeshResolution = 0;
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}
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public void Apply()
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{
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if (falloffTexture != null)
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Object.DestroyImmediate(falloffTexture);
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Internal_UpdateFalloffTexture();
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List<GStylizedTerrain> terrains = GUtilities.ExtractTerrainsFromOverlapTest(GCommon.OverlapTest(GroupId, GetQuad()));
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foreach (GStylizedTerrain t in terrains)
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{
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DrawOnTexture(t);
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}
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foreach(GStylizedTerrain t in terrains)
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{
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UpdateTerrain(t);
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}
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foreach (GStylizedTerrain t in terrains)
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{
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t.MatchEdges();
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}
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}
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private void DrawOnTexture(GStylizedTerrain t)
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{
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if (t.TerrainData == null)
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return;
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int heightMapResolution = t.TerrainData.Geometry.HeightMapResolution;
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RenderTexture rt = new RenderTexture(heightMapResolution, heightMapResolution, 0, GGeometry.HeightMapRTFormat, RenderTextureReadWrite.Linear);
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Internal_DrawOnTexture(t, rt);
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Color[] oldHeightMapColors = t.TerrainData.Geometry.HeightMap.GetPixels();
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RenderTexture.active = rt;
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t.TerrainData.Geometry.HeightMap.ReadPixels(new Rect(0, 0, heightMapResolution, heightMapResolution), 0, 0);
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t.TerrainData.Geometry.HeightMap.Apply();
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RenderTexture.active = null;
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Color[] newHeightMapColors = t.TerrainData.Geometry.HeightMap.GetPixels();
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rt.Release();
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Object.DestroyImmediate(rt);
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List<Rect> dirtyRects = new List<Rect>(GCommon.CompareTerrainTexture(t.TerrainData.Geometry.ChunkGridSize, oldHeightMapColors, newHeightMapColors));
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for (int i = 0; i < dirtyRects.Count; ++i)
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{
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t.TerrainData.Geometry.SetRegionDirty(dirtyRects[i]);
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t.TerrainData.Foliage.SetTreeRegionDirty(dirtyRects[i]);
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t.TerrainData.Foliage.SetGrassRegionDirty(dirtyRects[i]);
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}
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}
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private void UpdateTerrain(GStylizedTerrain t)
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{
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t.TerrainData.SetDirty(GTerrainData.DirtyFlags.Geometry);
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t.UpdateTreesPosition();
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t.UpdateGrassPatches();
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t.TerrainData.Foliage.ClearTreeDirtyRegions();
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t.TerrainData.Foliage.ClearGrassDirtyRegions();
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t.TerrainData.SetDirty(GTerrainData.DirtyFlags.Foliage);
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}
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public void Internal_DrawOnTexture(GStylizedTerrain t, RenderTexture rt)
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{
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GCommon.CopyToRT(t.TerrainData.Geometry.HeightMap, rt);
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Vector3[] worldCorner = GetQuad();
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Vector2[] uvCorners = new Vector2[worldCorner.Length];
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for (int i = 0; i < uvCorners.Length; ++i)
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{
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uvCorners[i] = t.WorldPointToUV(worldCorner[i]);
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}
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Rect dirtyRect = GUtilities.GetRectContainsPoints(uvCorners);
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if (!dirtyRect.Overlaps(new Rect(0, 0, 1, 1)))
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return;
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Vector3 normalizedPos = t.WorldPointToNormalized(Position);
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float stampHeight = GUtilities.InverseLerpUnclamped(0, t.TerrainData.Geometry.Height, Scale.y);
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Material mat = GInternalMaterials.StamperMaterial;
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mat.SetTexture("_HeightMap", t.TerrainData.Geometry.HeightMap);
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mat.SetTexture("_Stamp", Stamp);
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mat.SetTexture("_Falloff", falloffTexture);
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mat.SetInt("_Operation", (int)Operation);
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mat.SetFloat("_LerpFactor", LerpFactor);
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mat.SetFloat("_StampHeight", stampHeight);
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mat.SetFloat("_StampPositionY", normalizedPos.y);
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mat.SetFloat("_Inverse", InverseStamp ? 1 : 0);
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mat.SetFloat("_UseFalloffAsBlendFactor", UseFalloffAsBlendFactor ? 1 : 0);
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mat.SetFloat("_AdditionalMeshResolution", GCommon.SUB_DIV_STEP * AdditionalMeshResolution);
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if (EnableTerrainMask)
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{
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mat.SetTexture("_TerrainMask", t.TerrainData.Mask.MaskMapOrDefault);
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}
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else
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{
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mat.SetTexture("_TerrainMask", Texture2D.blackTexture);
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}
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int pass = (int)Channel;
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GCommon.DrawQuad(rt, uvCorners, mat, pass);
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}
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public void Internal_UpdateFalloffTexture()
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{
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falloffTexture = GCommon.CreateTextureFromCurve(Falloff, 256, 1);
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}
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public Vector3[] GetQuad()
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{
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Matrix4x4 matrix = Matrix4x4.TRS(Position, Rotation, Scale);
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Vector3[] quad = new Vector3[4]
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{
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matrix.MultiplyPoint(new Vector3(-0.5f, 0, -0.5f)),
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matrix.MultiplyPoint(new Vector3(-0.5f, 0, 0.5f)),
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matrix.MultiplyPoint(new Vector3(0.5f, 0, 0.5f)),
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matrix.MultiplyPoint(new Vector3(0.5f, 0, -0.5f))
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};
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return quad;
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}
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public void GetQuad(Vector3[] quad)
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{
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Matrix4x4 matrix = Matrix4x4.TRS(Position, Rotation, Scale);
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quad[0] = matrix.MultiplyPoint(new Vector3(-0.5f, 0, -0.5f));
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quad[1] = matrix.MultiplyPoint(new Vector3(-0.5f, 0, 0.5f));
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quad[2] = matrix.MultiplyPoint(new Vector3(0.5f, 0, 0.5f));
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quad[3] = matrix.MultiplyPoint(new Vector3(0.5f, 0, -0.5f));
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}
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public void GetBox(Vector3[] box)
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{
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Matrix4x4 matrix = Matrix4x4.TRS(Position, Rotation, Scale);
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box[0] = matrix.MultiplyPoint(new Vector3(-0.5f, 0, -0.5f));
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box[1] = matrix.MultiplyPoint(new Vector3(-0.5f, 0, 0.5f));
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box[2] = matrix.MultiplyPoint(new Vector3(0.5f, 0, 0.5f));
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box[3] = matrix.MultiplyPoint(new Vector3(0.5f, 0, -0.5f));
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box[4] = matrix.MultiplyPoint(new Vector3(-0.5f, 1, -0.5f));
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box[5] = matrix.MultiplyPoint(new Vector3(-0.5f, 1, 0.5f));
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box[6] = matrix.MultiplyPoint(new Vector3(0.5f, 1, 0.5f));
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box[7] = matrix.MultiplyPoint(new Vector3(0.5f, 1, -0.5f));
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}
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}
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}
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#endif
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