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package gregtech.common.render;
import net.minecraft.block.Block;
import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.item.ItemStack;
import net.minecraft.util.IIcon;
import net.minecraftforge.common.util.ForgeDirection;
import org.lwjgl.opengl.GL11;
import gregtech.api.interfaces.IGT_ItemWithMaterialRenderer;
public class GT_RenderUtil {
public static void colorGTItem(ItemStack aStack) {
if (aStack.getItem() instanceof IGT_ItemWithMaterialRenderer aItem) {
short[] tModulation = aItem.getRGBa(aStack);
GL11.glColor4f(tModulation[0] / 255.0F, tModulation[1] / 255.0F, tModulation[2] / 255.0F, 255.0f);
} else {
System.out.println("WARNING: " + aStack.getDisplayName() + " does not have an associated GT colour.");
}
}
public static void renderBlockIcon(RenderBlocks aRenderer, Block aBlock, double aX, double aY, double aZ,
IIcon aIcon, ForgeDirection side) {
switch (side) {
case DOWN -> aRenderer.renderFaceYNeg(aBlock, aX, aY, aZ, aIcon);
case UP -> aRenderer.renderFaceYPos(aBlock, aX, aY, aZ, aIcon);
case NORTH -> aRenderer.renderFaceZNeg(aBlock, aX, aY, aZ, aIcon);
case SOUTH -> aRenderer.renderFaceZPos(aBlock, aX, aY, aZ, aIcon);
case WEST -> aRenderer.renderFaceXNeg(aBlock, aX, aY, aZ, aIcon);
case EAST -> aRenderer.renderFaceXPos(aBlock, aX, aY, aZ, aIcon);
}
}
public static void renderItemIcon(IIcon icon, double size, double z, float nx, float ny, float nz) {
renderItemIcon(icon, 0.0D, 0.0D, size, size, z, nx, ny, nz);
}
public static void renderItemIcon(IIcon icon, double xStart, double yStart, double xEnd, double yEnd, double z,
float nx, float ny, float nz) {
if (icon == null) {
return;
}
Tessellator.instance.startDrawingQuads();
Tessellator.instance.setNormal(nx, ny, nz);
if (nz > 0.0F) {
Tessellator.instance.addVertexWithUV(xStart, yStart, z, icon.getMinU(), icon.getMinV());
Tessellator.instance.addVertexWithUV(xEnd, yStart, z, icon.getMaxU(), icon.getMinV());
Tessellator.instance.addVertexWithUV(xEnd, yEnd, z, icon.getMaxU(), icon.getMaxV());
Tessellator.instance.addVertexWithUV(xStart, yEnd, z, icon.getMinU(), icon.getMaxV());
} else {
Tessellator.instance.addVertexWithUV(xStart, yEnd, z, icon.getMinU(), icon.getMaxV());
Tessellator.instance.addVertexWithUV(xEnd, yEnd, z, icon.getMaxU(), icon.getMaxV());
Tessellator.instance.addVertexWithUV(xEnd, yStart, z, icon.getMaxU(), icon.getMinV());
Tessellator.instance.addVertexWithUV(xStart, yStart, z, icon.getMinU(), icon.getMinV());
}
Tessellator.instance.draw();
}
}
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