99 lines
3.9 KiB
Java
99 lines
3.9 KiB
Java
package com.pahimar.ee3.client.util;
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import cpw.mods.fml.client.FMLClientHandler;
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import net.minecraft.client.gui.FontRenderer;
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import net.minecraft.client.renderer.Tessellator;
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import net.minecraft.client.renderer.texture.TextureMap;
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import net.minecraft.item.ItemStack;
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import net.minecraft.util.IIcon;
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import net.minecraft.util.ResourceLocation;
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import org.lwjgl.opengl.GL11;
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import org.lwjgl.opengl.GL12;
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public class RenderUtils {
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public static void bindTexture(ResourceLocation texture) {
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FMLClientHandler.instance().getClient().getTextureManager().bindTexture(texture);
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}
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public static int
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getCenteredTextOffset(FontRenderer fontRenderer, String string, int width) {
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return (width - fontRenderer.getStringWidth(string)) / 2;
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}
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public static void renderItemIntoGUI(
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FontRenderer fontRenderer,
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ItemStack itemStack,
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int x,
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int y,
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float opacity,
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float scale,
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int zLevel
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) {
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IIcon icon = itemStack.getIconIndex();
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GL11.glDisable(GL11.GL_LIGHTING);
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FMLClientHandler.instance().getClient().renderEngine.bindTexture(
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TextureMap.locationItemsTexture
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);
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int overlayColour = itemStack.getItem().getColorFromItemStack(itemStack, 0);
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float red = (overlayColour >> 16 & 255) / 255.0F;
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float green = (overlayColour >> 8 & 255) / 255.0F;
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float blue = (overlayColour & 255) / 255.0F;
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GL11.glColor4f(red, green, blue, opacity);
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Tessellator tessellator = Tessellator.instance;
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tessellator.startDrawingQuads();
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tessellator.addVertexWithUV(
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x, y + 16 * scale, zLevel, icon.getMinU(), icon.getMaxV()
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);
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tessellator.addVertexWithUV(
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x + 16 * scale, y + 16 * scale, zLevel, icon.getMaxU(), icon.getMaxV()
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);
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tessellator.addVertexWithUV(
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x + 16 * scale, y, zLevel, icon.getMaxU(), icon.getMinV()
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);
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tessellator.addVertexWithUV(x, y, zLevel, icon.getMinU(), icon.getMinV());
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tessellator.draw();
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GL11.glEnable(GL11.GL_LIGHTING);
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}
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public static void renderQuad(ResourceLocation texture) {
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FMLClientHandler.instance().getClient().renderEngine.bindTexture(texture);
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Tessellator tessellator = Tessellator.instance;
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GL11.glEnable(GL12.GL_RESCALE_NORMAL);
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GL11.glEnable(GL11.GL_BLEND);
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GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
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GL11.glColor4f(1, 1, 1, 1);
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tessellator.startDrawingQuads();
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tessellator.addVertexWithUV(-0.5D, 0.5D, 0F, 0, 1);
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tessellator.addVertexWithUV(0.5D, 0.5D, 0F, 1, 1);
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tessellator.addVertexWithUV(0.5D, -0.5D, 0F, 1, 0);
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tessellator.addVertexWithUV(-0.5D, -0.5D, 0F, 0, 0);
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tessellator.draw();
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GL11.glDisable(GL11.GL_BLEND);
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GL11.glDisable(GL12.GL_RESCALE_NORMAL);
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}
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public static void
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renderPulsingQuad(ResourceLocation texture, float maxTransparency) {
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float pulseTransparency = (float) getPulseValue() * maxTransparency;
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FMLClientHandler.instance().getClient().renderEngine.bindTexture(texture);
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Tessellator tessellator = Tessellator.instance;
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GL11.glEnable(GL12.GL_RESCALE_NORMAL);
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GL11.glEnable(GL11.GL_BLEND);
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GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
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GL11.glColor4f(1, 1, 1, pulseTransparency);
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tessellator.startDrawingQuads();
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tessellator.setColorRGBA_F(1, 1, 1, pulseTransparency);
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tessellator.addVertexWithUV(-0.5D, 0.5D, 0F, 0, 1);
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tessellator.addVertexWithUV(0.5D, 0.5D, 0F, 1, 1);
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tessellator.addVertexWithUV(0.5D, -0.5D, 0F, 1, 0);
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tessellator.addVertexWithUV(-0.5D, -0.5D, 0F, 0, 0);
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tessellator.draw();
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GL11.glDisable(GL11.GL_BLEND);
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GL11.glDisable(GL12.GL_RESCALE_NORMAL);
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}
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private static double getPulseValue() {
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return (Math.sin(System.nanoTime() / 100f) + 1) / 2;
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}
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}
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