87 lines
3 KiB
C
87 lines
3 KiB
C
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// Copyright 2020 Phyronnaz
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#pragma once
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#include "CoreMinimal.h"
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#include "VoxelIntBox.h"
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#include "Kismet/BlueprintFunctionLibrary.h"
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#include "VoxelPlaceableItemsUtilities.generated.h"
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class AVoxelWorld;
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class UVoxelGenerator;
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USTRUCT(BlueprintType)
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struct FVoxelPerlinWormsSettings
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{
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GENERATED_BODY()
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// The random seed to use
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm")
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int32 Seed = 2727;
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// The radius of the worms in voxel
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm")
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float Radius = 25;
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// Start of the worms, in voxel space
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm")
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FVector Start = FVector(0, 0, 0);
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// Direction of the first worm
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm")
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FVector Direction = FVector(1, 1, -1);
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// The amplitude of the random rotation on each worm
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm")
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FVector RotationAmplitude = FVector(10, 10, 90);
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// Max depth of the worms tree
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm")
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int32 NumSegments = 100;
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// Length of the worms in voxel
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm")
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float SegmentLength = 50;
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// Probability of a worm to create 2 worms
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm", meta = (UIMin = 0, UIMax = 1))
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float SplitProbability = 0.1f;
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// How much SplitProbability is reduced when worms go deeper in the tree
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm", meta = (UIMin = 0, UIMax = 1))
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float SplitProbabilityGain = 0.1f;
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// Controls the size of the branches after a split
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm")
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int32 BranchMeanSize = 25;
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// Controls the size of the branches after a split, relative to BranchMeanSize
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm", meta = (UIMin = 0, UIMax = 1))
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float BranchSizeVariation = 0.1f;
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public:
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// Perlin noise traversal direction
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm", meta = (AdvancedDisplay))
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FVector NoiseDirection = FVector(1, 1, 1);
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// Segment lengths to use for perlin noise
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm", meta = (AdvancedDisplay))
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float NoiseSegmentLength = 10;
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public:
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// To avoid infinite loops
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Perlin Worm", meta = (AdvancedDisplay))
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int32 MaxWorms = 1000;
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};
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UCLASS()
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class VOXEL_API UVoxelPlaceableItemsUtilities : public UBlueprintFunctionLibrary
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{
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GENERATED_BODY()
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public:
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DECLARE_DYNAMIC_DELEGATE_ThreeParams(FAddWorm, FVector, Start, FVector, End, float, Radius);
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UFUNCTION(BlueprintCallable, Category = "Voxel|Placeable Items", meta = (DefaultToSelf = World, AdvancedDisplay = "NoiseDir, NoiseSegmentLength"))
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static void AddWorms(FAddWorm AddWorm, FVoxelPerlinWormsSettings Settings);
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};
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