67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
// Fill out your copyright notice in the Description page of Project Settings.
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#include "BlasterHUD.h"
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void ABlasterHUD::DrawHUD()
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{
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Super::DrawHUD();
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if (GEngine)
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{
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FVector2D ViewportSize;
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GEngine->GameViewport->GetViewportSize(ViewportSize);
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const FVector2D ViewportCenter(ViewportSize.X / 2.f, ViewportSize.Y / 2.f);
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const float SpreadScaled = CrosshairSpreadMax * HUDPackage.CrosshairSpread;
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if (HUDPackage.CrosshairsCenter)
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{
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const FVector2D Spread(0.f, 0.f);
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DrawCrosshair(HUDPackage.CrosshairsCenter, ViewportCenter, Spread);
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}
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if (HUDPackage.CrosshairsLeft)
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{
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const FVector2D Spread(-SpreadScaled, 0.f);
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DrawCrosshair(HUDPackage.CrosshairsLeft, ViewportCenter, Spread);
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}
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if (HUDPackage.CrosshairsRight)
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{
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const FVector2D Spread(SpreadScaled, 0.f);
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DrawCrosshair(HUDPackage.CrosshairsRight, ViewportCenter, Spread);
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}
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if (HUDPackage.CrosshairsTop)
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{
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const FVector2D Spread(0.f, -SpreadScaled);
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DrawCrosshair(HUDPackage.CrosshairsTop, ViewportCenter, Spread);
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}
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if (HUDPackage.CrosshairsBottom)
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{
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const FVector2D Spread(0.f, SpreadScaled);
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DrawCrosshair(HUDPackage.CrosshairsBottom, ViewportCenter, Spread);
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}
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}
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}
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void ABlasterHUD::DrawCrosshair(UTexture2D* Texture, FVector2D ViewportCenter, FVector2D Spread)
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{
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const float TextureWidth = Texture->GetSizeX();
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const float TextureHeight = Texture->GetSizeY();
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const FVector2D TextureDrawPoint(
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ViewportCenter.X - (TextureWidth / 2.f) + Spread.X,
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ViewportCenter.Y - (TextureHeight / 2.f) + Spread.Y
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);
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DrawTexture(
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Texture,
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TextureDrawPoint.X,
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TextureDrawPoint.Y,
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TextureWidth,
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TextureHeight,
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0.f,
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0.f,
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1.f,
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1.f,
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FLinearColor::White
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);
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}
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