Added support for latest Forge and Configured.

1 files changed, 36 insertions, 0 deletions

diff --git a/src/main/java/com/anthonyhilyard/iceberg/util/GuiHelper.java b/src/main/java/com/anthonyhilyard/iceberg/util/GuiHelper.java
index b87c057..73800cb 100644
--- a/src/main/java/com/anthonyhilyard/iceberg/util/GuiHelper.java
+++ b/src/main/java/com/anthonyhilyard/iceberg/util/GuiHelper.java
@@ -4,12 +4,48 @@ import com.mojang.blaze3d.systems.RenderSystem;
 import net.minecraft.client.renderer.GameRenderer;
 import com.mojang.blaze3d.vertex.Tesselator;
 import com.mojang.blaze3d.vertex.BufferBuilder;
+import com.mojang.blaze3d.vertex.BufferUploader;
 import com.mojang.blaze3d.vertex.DefaultVertexFormat;
 import com.mojang.blaze3d.vertex.VertexFormat;
 import com.mojang.math.Matrix4f;
 
 public class GuiHelper
 {
+	public static void drawGradientRect(Matrix4f mat, int zLevel, int left, int top, int right, int bottom, int startColor, int endColor)
+	{
+		RenderSystem.enableDepthTest();
+		RenderSystem.disableTexture();
+		RenderSystem.enableBlend();
+		RenderSystem.defaultBlendFunc();
+		RenderSystem.setShader(GameRenderer::getPositionColorShader);
+
+		Tesselator tessellator = Tesselator.getInstance();
+		BufferBuilder bufferBuilder = tessellator.getBuilder();
+		bufferBuilder.begin(VertexFormat.Mode.QUADS, DefaultVertexFormat.POSITION_COLOR);
+		drawGradientRect(mat, bufferBuilder, left, top, right, bottom, zLevel, startColor, endColor);
+		BufferUploader.drawWithShader(bufferBuilder.end());
+
+		RenderSystem.disableBlend();
+		RenderSystem.enableTexture();
+	}
+
+	public static void drawGradientRect(Matrix4f mat, BufferBuilder bufferBuilder, int left, int top, int right, int bottom, int zLevel, int startColor, int endColor)
+	{
+		float startAlpha = (float)(startColor >> 24 & 255) / 255.0F;
+		float startRed   = (float)(startColor >> 16 & 255) / 255.0F;
+		float startGreen = (float)(startColor >>  8 & 255) / 255.0F;
+		float startBlue  = (float)(startColor       & 255) / 255.0F;
+		float endAlpha   = (float)(endColor   >> 24 & 255) / 255.0F;
+		float endRed     = (float)(endColor   >> 16 & 255) / 255.0F;
+		float endGreen   = (float)(endColor   >>  8 & 255) / 255.0F;
+		float endBlue    = (float)(endColor         & 255) / 255.0F;
+
+		bufferBuilder.vertex(mat, right,    top, zLevel).color(startRed, startGreen, startBlue, startAlpha).endVertex();
+		bufferBuilder.vertex(mat,  left,    top, zLevel).color(startRed, startGreen, startBlue, startAlpha).endVertex();
+		bufferBuilder.vertex(mat,  left, bottom, zLevel).color(  endRed,   endGreen,   endBlue,   endAlpha).endVertex();
+		bufferBuilder.vertex(mat, right, bottom, zLevel).color(  endRed,   endGreen,   endBlue,   endAlpha).endVertex();
+	}
+
 	public static void drawGradientRectHorizontal(Matrix4f mat, int zLevel, int left, int top, int right, int bottom, int startColor, int endColor)
 	{
 		float startAlpha = (float)(startColor >> 24 & 255) / 255.0F;