Java tutorial
/** * This class was created by <Vazkii>. It's distributed as * part of the Kings and Peasants Mod. * * Kings and Peasants is Open Source and distributed under a * Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License * (http://creativecommons.org/licenses/by-nc-sa/3.0/deed.en_GB) * * File Created @ [13 Jul 2013, 21:33:56 (GMT)] */ package vazkii.kap.client.util.helper; import java.awt.Color; import java.util.List; import net.minecraft.client.Minecraft; import net.minecraft.client.gui.FontRenderer; import net.minecraft.client.renderer.Tessellator; import net.minecraft.util.ResourceLocation; import org.lwjgl.opengl.GL11; import org.lwjgl.opengl.GL12; import vazkii.kap.core.lib.LibResources; import vazkii.kap.util.storage.CrestData; public class RenderHelper { public static void renderCrest(CrestData crest, double x, double y, double z) { renderCrest(crest, x, y, z, true, false); } public static void renderCrest(CrestData crest, double x, double y, double z, boolean bg, boolean lighting) { GL11.glPushMatrix(); boolean lightingEnabled = GL11.glGetBoolean(GL11.GL_LIGHTING); GL11.glDisable(GL11.GL_LIGHTING); int ssx = crest.icon % 32; int ssy = crest.icon / 32; float scale = 1 / 32F; if (bg) { Minecraft.getMinecraft().renderEngine.func_110577_a(new ResourceLocation(LibResources.ICON_HERALDRY_0)); int color = crest.color1; Color colorRGB = new Color(color); GL11.glColor3f(colorRGB.getRed() / 255F, colorRGB.getGreen() / 255F, colorRGB.getBlue() / 255F); drawTexturedQuad(x, y, z - 0.01, 64, 64, ssx * scale, (ssx + 1) * scale, ssy * scale, (ssy + 1) * scale); } Minecraft.getMinecraft().renderEngine.func_110577_a(new ResourceLocation(LibResources.ICON_HERALDRY_1)); int color1 = crest.color2; Color colorRGB = new Color(color1); GL11.glColor3f(colorRGB.getRed() / 255F, colorRGB.getGreen() / 255F, colorRGB.getBlue() / 255F); drawTexturedQuad(x, y, z + 2, 64, 64, ssx * scale, (ssx + 1) * scale, ssy * scale, (ssy + 1) * scale); if (!lightingEnabled) GL11.glDisable(GL11.GL_LIGHTING); GL11.glPopMatrix(); } public static void renderTooltip(int x, int y, int color, int color2, List<String> tooltipData) { GL11.glPushMatrix(); GL11.glDisable(GL12.GL_RESCALE_NORMAL); net.minecraft.client.renderer.RenderHelper.disableStandardItemLighting(); GL11.glDisable(GL11.GL_LIGHTING); GL11.glDisable(GL11.GL_DEPTH_TEST); if (!tooltipData.isEmpty()) { int var5 = 0; int var6; int var7; FontRenderer fontRenderer = Minecraft.getMinecraft().fontRenderer; 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; float z = 300.0F; 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); 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; } } GL11.glPopMatrix(); } public static void drawTexturedQuad(double x, double y, double z, int width, int height, float minU, float maxU, float minV, float maxV) { Tessellator tess = Tessellator.instance; tess.startDrawingQuads(); tess.addVertexWithUV(x, y + height, z, minU, maxV); tess.addVertexWithUV(x + width, y + height, z, maxU, maxV); tess.addVertexWithUV(x + width, y, z, maxU, minV); tess.addVertexWithUV(x, y, z, minU, minV); tess.draw(); } public static void drawGradientRect(int par1, int par2, float z, int par3, int par4, int par5, int par6) { float var7 = (par5 >> 24 & 255) / 255.0F; float var8 = (par5 >> 16 & 255) / 255.0F; float var9 = (par5 >> 8 & 255) / 255.0F; float var10 = (par5 & 255) / 255.0F; float var11 = (par6 >> 24 & 255) / 255.0F; float var12 = (par6 >> 16 & 255) / 255.0F; float var13 = (par6 >> 8 & 255) / 255.0F; float var14 = (par6 & 255) / 255.0F; GL11.glDisable(GL11.GL_TEXTURE_2D); GL11.glEnable(GL11.GL_BLEND); GL11.glDisable(GL11.GL_ALPHA_TEST); GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA); GL11.glShadeModel(GL11.GL_SMOOTH); Tessellator var15 = Tessellator.instance; var15.startDrawingQuads(); var15.setColorRGBA_F(var8, var9, var10, var7); var15.addVertex(par3, par2, z); var15.addVertex(par1, par2, z); var15.setColorRGBA_F(var12, var13, var14, var11); var15.addVertex(par1, par4, z); var15.addVertex(par3, par4, z); var15.draw(); GL11.glShadeModel(GL11.GL_FLAT); GL11.glDisable(GL11.GL_BLEND); GL11.glEnable(GL11.GL_ALPHA_TEST); GL11.glEnable(GL11.GL_TEXTURE_2D); } }