Java tutorial
/** * This class was created by <Vazkii>. It's distributed as * part of the Botania Mod. Get the Source Code in github: * https://github.com/Vazkii/Botania * * Botania is Open Source and distributed under the * Botania License: http://botaniamod.net/license.php * * File Created @ [Jan 19, 2014, 5:40:38 PM (GMT)] */ package vazkii.arl.util; import java.util.List; import org.lwjgl.input.Keyboard; import org.lwjgl.opengl.GL11; import net.minecraft.client.Minecraft; import net.minecraft.client.gui.FontRenderer; import net.minecraft.client.gui.ScaledResolution; import net.minecraft.client.renderer.GlStateManager; import net.minecraft.client.renderer.Tessellator; import net.minecraft.client.renderer.VertexBuffer; import net.minecraft.client.renderer.vertex.DefaultVertexFormats; import net.minecraft.client.settings.KeyBinding; import net.minecraftforge.fml.relauncher.Side; import net.minecraftforge.fml.relauncher.SideOnly; @SideOnly(Side.CLIENT) public final class RenderHelper { public static void renderTooltip(int x, int y, List<String> tooltipData) { int color = 0x505000ff; int color2 = 0xf0100010; renderTooltip(x, y, tooltipData, color, color2); } public static void renderTooltipOrange(int x, int y, List<String> tooltipData) { int color = 0x50a06600; int color2 = 0xf01e1200; renderTooltip(x, y, tooltipData, color, color2); } public static void renderTooltipGreen(int x, int y, List<String> tooltipData) { int color = 0x5000a000; int color2 = 0xf0001e00; renderTooltip(x, y, tooltipData, color, color2); } public static void renderTooltip(int x, int y, List<String> tooltipData, int color, int color2) { boolean lighting = GL11.glGetBoolean(GL11.GL_LIGHTING); if (lighting) net.minecraft.client.renderer.RenderHelper.disableStandardItemLighting(); if (!tooltipData.isEmpty()) { int var5 = 0; int var6; int var7; FontRenderer fontRenderer = Minecraft.getMinecraft().fontRendererObj; for (var6 = 0; var6 < tooltipData.size(); ++var6) { var7 = fontRenderer.getStringWidth(tooltipData.get(var6)); if (var7 > var5) var5 = var7; } var6 = x + 12; var7 = y - 12; int var9 = 8; if (tooltipData.size() > 1) var9 += 2 + (tooltipData.size() - 1) * 10; ScaledResolution res = new ScaledResolution(Minecraft.getMinecraft()); int right = var6 + var5 + 5; int swidth = res.getScaledWidth(); if (right > swidth) { int diff = right - swidth; var6 -= diff; } int bottom = var7 + var9 + 5; int sheight = res.getScaledHeight(); if (bottom > sheight) { int diff = bottom - sheight; var7 -= diff; } float z = 300F; drawGradientRect(var6 - 3, var7 - 4, z, var6 + var5 + 3, var7 - 3, color2, color2); drawGradientRect(var6 - 3, var7 + var9 + 3, z, var6 + var5 + 3, var7 + var9 + 4, color2, color2); drawGradientRect(var6 - 3, var7 - 3, z, var6 + var5 + 3, var7 + var9 + 3, color2, color2); drawGradientRect(var6 - 4, var7 - 3, z, var6 - 3, var7 + var9 + 3, color2, color2); drawGradientRect(var6 + var5 + 3, var7 - 3, z, var6 + var5 + 4, var7 + var9 + 3, color2, color2); int var12 = (color & 0xFFFFFF) >> 1 | color & -16777216; drawGradientRect(var6 - 3, var7 - 3 + 1, z, var6 - 3 + 1, var7 + var9 + 3 - 1, color, var12); drawGradientRect(var6 + var5 + 2, var7 - 3 + 1, z, var6 + var5 + 3, var7 + var9 + 3 - 1, color, var12); drawGradientRect(var6 - 3, var7 - 3, z, var6 + var5 + 3, var7 - 3 + 1, color, color); drawGradientRect(var6 - 3, var7 + var9 + 2, z, var6 + var5 + 3, var7 + var9 + 3, var12, var12); GlStateManager.disableDepth(); for (int var13 = 0; var13 < tooltipData.size(); ++var13) { String var14 = tooltipData.get(var13); fontRenderer.drawStringWithShadow(var14, var6, var7, -1); if (var13 == 0) var7 += 2; var7 += 10; } GlStateManager.enableDepth(); } if (!lighting) net.minecraft.client.renderer.RenderHelper.disableStandardItemLighting(); GlStateManager.color(1F, 1F, 1F, 1F); } public static void drawGradientRect(int par1, int par2, float z, int par3, int par4, int par5, int par6) { float var7 = (par5 >> 24 & 255) / 255F; float var8 = (par5 >> 16 & 255) / 255F; float var9 = (par5 >> 8 & 255) / 255F; float var10 = (par5 & 255) / 255F; float var11 = (par6 >> 24 & 255) / 255F; float var12 = (par6 >> 16 & 255) / 255F; float var13 = (par6 >> 8 & 255) / 255F; float var14 = (par6 & 255) / 255F; GlStateManager.disableTexture2D(); GlStateManager.enableBlend(); GlStateManager.disableAlpha(); GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA); GlStateManager.shadeModel(GL11.GL_SMOOTH); Tessellator var15 = Tessellator.getInstance(); VertexBuffer buff = var15.getBuffer(); buff.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_COLOR); buff.pos(par3, par2, z).color(var8, var9, var10, var7).endVertex(); buff.pos(par1, par2, z).color(var8, var9, var10, var7).endVertex(); buff.pos(par1, par4, z).color(var12, var13, var14, var11).endVertex(); buff.pos(par3, par4, z).color(var12, var13, var14, var11).endVertex(); var15.draw(); GlStateManager.shadeModel(GL11.GL_FLAT); GlStateManager.disableBlend(); GlStateManager.enableAlpha(); GlStateManager.enableTexture2D(); } public static void drawTexturedModalRect(int par1, int par2, float z, int par3, int par4, int par5, int par6) { drawTexturedModalRect(par1, par2, z, par3, par4, par5, par6, 0.00390625F, 0.00390625F); } public static void drawTexturedModalRect(int par1, int par2, float z, int par3, int par4, int par5, int par6, float f, float f1) { Tessellator tessellator = Tessellator.getInstance(); VertexBuffer buff = tessellator.getBuffer(); buff.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_TEX); buff.pos(par1 + 0, par2 + par6, z).tex((par3 + 0) * f, (par4 + par6) * f1).endVertex(); buff.pos(par1 + par5, par2 + par6, z).tex((par3 + par5) * f, (par4 + par6) * f1).endVertex(); buff.pos(par1 + par5, par2 + 0, z).tex((par3 + par5) * f, (par4 + 0) * f1).endVertex(); buff.pos(par1 + 0, par2 + 0, z).tex((par3 + 0) * f, (par4 + 0) * f1).endVertex(); tessellator.draw(); } public static String getKeyDisplayString(String keyName) { String key = null; KeyBinding[] keys = Minecraft.getMinecraft().gameSettings.keyBindings; for (KeyBinding otherKey : keys) if (otherKey.getKeyDescription().equals(keyName)) { key = Keyboard.getKeyName(otherKey.getKeyCode()); break; } return key; } }