Java tutorial
/* * This file ("AssetUtil.java") is part of the Actually Additions mod for Minecraft. * It is created and owned by Ellpeck and distributed * under the Actually Additions License to be found at * http://ellpeck.de/actaddlicense * View the source code at https://github.com/Ellpeck/ActuallyAdditions * * 2015-2016 Ellpeck */ package de.ellpeck.actuallyadditions.mod.util; import de.ellpeck.actuallyadditions.mod.misc.ParticleColored; import de.ellpeck.actuallyadditions.mod.network.PacketHandler; import de.ellpeck.actuallyadditions.mod.network.PacketServerToClient; import de.ellpeck.actuallyadditions.mod.tile.TileEntityBase; import net.minecraft.block.Block; import net.minecraft.client.Minecraft; import net.minecraft.client.gui.FontRenderer; import net.minecraft.client.renderer.GlStateManager; import net.minecraft.client.renderer.RenderHelper; import net.minecraft.client.renderer.Tessellator; import net.minecraft.client.renderer.VertexBuffer; import net.minecraft.client.renderer.GlStateManager.DestFactor; import net.minecraft.client.renderer.GlStateManager.SourceFactor; import net.minecraft.client.renderer.block.model.ItemCameraTransforms.TransformType; import net.minecraft.client.renderer.tileentity.TileEntityRendererDispatcher; import net.minecraft.client.renderer.vertex.DefaultVertexFormats; import net.minecraft.client.renderer.vertex.VertexFormat; import net.minecraft.item.ItemStack; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.util.ResourceLocation; import net.minecraft.util.math.Vec3d; import net.minecraft.world.World; import net.minecraftforge.fml.common.network.NetworkRegistry; import net.minecraftforge.fml.relauncher.Side; import net.minecraftforge.fml.relauncher.SideOnly; import org.lwjgl.opengl.GL11; public final class AssetUtil { public static int maxLightX = 0xF000F0; public static int maxLightY = 0xF000F0; public static final ResourceLocation GUI_INVENTORY_LOCATION = getGuiLocation("gui_inventory"); public static ResourceLocation getGuiLocation(String file) { return new ResourceLocation(ModUtil.MOD_ID, "textures/gui/" + file + ".png"); } public static ResourceLocation getBookletGuiLocation(String file) { return getGuiLocation("booklet/" + file); } @SideOnly(Side.CLIENT) public static void displayNameString(FontRenderer font, int xSize, int yPositionOfMachineText, String text) { font.drawString(text, xSize / 2 - font.getStringWidth(text) / 2, yPositionOfMachineText, StringUtil.DECIMAL_COLOR_WHITE); } @SideOnly(Side.CLIENT) public static void displayNameString(FontRenderer font, int xSize, int yPositionOfMachineText, TileEntityBase tile) { displayNameString(font, xSize, yPositionOfMachineText, tile.getDisplayedName()); } @SideOnly(Side.CLIENT) public static void renderBlockInWorld(Block block, int meta) { renderItemInWorld(new ItemStack(block, 1, meta)); } @SideOnly(Side.CLIENT) public static void renderItemInWorld(ItemStack stack) { if (StackUtil.isValid(stack)) { GlStateManager.pushMatrix(); GlStateManager.disableLighting(); GlStateManager.pushAttrib(); RenderHelper.enableStandardItemLighting(); Minecraft.getMinecraft().getRenderItem().renderItem(stack, TransformType.FIXED); RenderHelper.disableStandardItemLighting(); GlStateManager.popAttrib(); GlStateManager.enableLighting(); GlStateManager.popMatrix(); } } @SideOnly(Side.CLIENT) public static void renderStackToGui(ItemStack stack, int x, int y, float scale) { GlStateManager.pushMatrix(); GlStateManager.enableBlend(); GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA); RenderHelper.enableGUIStandardItemLighting(); GlStateManager.enableDepth(); GlStateManager.enableRescaleNormal(); GlStateManager.translate(x, y, 0); GlStateManager.scale(scale, scale, scale); Minecraft mc = Minecraft.getMinecraft(); boolean flagBefore = mc.fontRendererObj.getUnicodeFlag(); mc.fontRendererObj.setUnicodeFlag(false); Minecraft.getMinecraft().getRenderItem().renderItemAndEffectIntoGUI(stack, 0, 0); Minecraft.getMinecraft().getRenderItem().renderItemOverlayIntoGUI(mc.fontRendererObj, stack, 0, 0, null); mc.fontRendererObj.setUnicodeFlag(flagBefore); RenderHelper.disableStandardItemLighting(); GlStateManager.popMatrix(); } //Copied from Gui.class and changed @SideOnly(Side.CLIENT) public static void drawHorizontalGradientRect(int left, int top, int right, int bottom, int startColor, int endColor, float zLevel) { float f = (float) (startColor >> 24 & 255) / 255.0F; float f1 = (float) (startColor >> 16 & 255) / 255.0F; float f2 = (float) (startColor >> 8 & 255) / 255.0F; float f3 = (float) (startColor & 255) / 255.0F; float f4 = (float) (endColor >> 24 & 255) / 255.0F; float f5 = (float) (endColor >> 16 & 255) / 255.0F; float f6 = (float) (endColor >> 8 & 255) / 255.0F; float f7 = (float) (endColor & 255) / 255.0F; GlStateManager.disableTexture2D(); GlStateManager.enableBlend(); GlStateManager.disableAlpha(); GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0); GlStateManager.shadeModel(7425); Tessellator tessellator = Tessellator.getInstance(); VertexBuffer renderer = tessellator.getBuffer(); renderer.begin(7, DefaultVertexFormats.POSITION_COLOR); renderer.pos((double) left, (double) top, (double) zLevel).color(f1, f2, f3, f).endVertex(); renderer.pos((double) left, (double) bottom, (double) zLevel).color(f1, f2, f3, f).endVertex(); renderer.pos((double) right, (double) bottom, (double) zLevel).color(f5, f6, f7, f4).endVertex(); renderer.pos((double) right, (double) top, (double) zLevel).color(f5, f6, f7, f4).endVertex(); tessellator.draw(); GlStateManager.shadeModel(7424); GlStateManager.disableBlend(); GlStateManager.enableAlpha(); GlStateManager.enableTexture2D(); } @SideOnly(Side.CLIENT) public static void renderNameTag(String tag, double x, double y, double z) { FontRenderer fontrenderer = Minecraft.getMinecraft().fontRendererObj; float f = 1.6F; float f1 = 0.016666668F * f; GlStateManager.pushMatrix(); GlStateManager.translate(x, y, z); GL11.glNormal3f(0.0F, 1.0F, 0.0F); GlStateManager.rotate(-Minecraft.getMinecraft().getRenderManager().playerViewY, 0.0F, 1.0F, 0.0F); GlStateManager.rotate(Minecraft.getMinecraft().getRenderManager().playerViewX, 1.0F, 0.0F, 0.0F); GlStateManager.scale(-f1, -f1, f1); GlStateManager.disableLighting(); GlStateManager.depthMask(false); GlStateManager.disableDepth(); GlStateManager.enableBlend(); GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0); Tessellator tessellator = Tessellator.getInstance(); VertexBuffer renderer = tessellator.getBuffer(); int i = 0; int j = fontrenderer.getStringWidth(tag) / 2; GlStateManager.disableTexture2D(); renderer.begin(7, DefaultVertexFormats.POSITION_COLOR); renderer.pos((double) (-j - 1), (double) (-1 + i), 0.0D).color(0.0F, 0.0F, 0.0F, 0.25F).endVertex(); renderer.pos((double) (-j - 1), (double) (8 + i), 0.0D).color(0.0F, 0.0F, 0.0F, 0.25F).endVertex(); renderer.pos((double) (j + 1), (double) (8 + i), 0.0D).color(0.0F, 0.0F, 0.0F, 0.25F).endVertex(); renderer.pos((double) (j + 1), (double) (-1 + i), 0.0D).color(0.0F, 0.0F, 0.0F, 0.25F).endVertex(); tessellator.draw(); GlStateManager.enableTexture2D(); fontrenderer.drawString(tag, -fontrenderer.getStringWidth(tag) / 2, i, 553648127); GlStateManager.enableDepth(); GlStateManager.depthMask(true); fontrenderer.drawString(tag, -fontrenderer.getStringWidth(tag) / 2, i, -1); GlStateManager.enableLighting(); GlStateManager.disableBlend(); GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F); GlStateManager.popMatrix(); } public static void shootParticles(World world, double startX, double startY, double startZ, double endX, double endY, double endZ, float[] color, int particleAmount, float particleSize, float ageMultiplier) { if (!world.isRemote) { NBTTagCompound data = new NBTTagCompound(); data.setDouble("StartX", startX); data.setDouble("StartY", startY); data.setDouble("StartZ", startZ); data.setDouble("EndX", endX); data.setDouble("EndY", endY); data.setDouble("EndZ", endZ); data.setFloat("Color1", color[0]); data.setFloat("Color2", color[1]); data.setFloat("Color3", color[2]); data.setInteger("ParticleAmount", particleAmount); data.setFloat("ParticleSize", particleSize); data.setFloat("AgeMultiplier", ageMultiplier); PacketHandler.theNetwork.sendToAllAround(new PacketServerToClient(data, PacketHandler.PARTICLE_HANDLER), new NetworkRegistry.TargetPoint(world.provider.getDimension(), startX, startY, startZ, 96)); } } @SideOnly(Side.CLIENT) public static void renderParticlesFromAToB(double startX, double startY, double startZ, double endX, double endY, double endZ, int particleAmount, float particleSize, float[] color, float ageMultiplier) { Minecraft mc = Minecraft.getMinecraft(); int particleSetting = mc.gameSettings.particleSetting; if (mc.player.getDistance(startX, startY, startZ) <= 64 || mc.player.getDistance(endX, endY, endZ) <= 64) { double difX = startX - endX; double difY = startY - endY; double difZ = startZ - endZ; double distance = new Vec3d(startX, startY, startZ).distanceTo(new Vec3d(endX, endY, endZ)); for (int times = 0; times < Math.max(particleAmount / 2, 1); times++) { for (double i = 0; i <= 1; i += 1 / (distance * particleAmount)) { if (particleSetting == 0 || (particleSetting == 1 && mc.world.rand.nextFloat() >= 0.8F) || (particleSetting > 1 && mc.world.rand.nextFloat() >= 0.99F)) { ParticleColored fx = new ParticleColored(mc.world, (difX * i) + endX + 0.5, (difY * i) + endY + 0.5, (difZ * i) + endZ + 0.5, particleSize, color[0], color[1], color[2], ageMultiplier); mc.effectRenderer.addEffect(fx); } } } } } //Thanks to feldim2425 for this. //I can't do rendering code. Ever. @SideOnly(Side.CLIENT) public static void renderLaser(double firstX, double firstY, double firstZ, double secondX, double secondY, double secondZ, double rotationTime, float alpha, double beamWidth, float[] color) { Tessellator tessy = Tessellator.getInstance(); VertexBuffer render = tessy.getBuffer(); World world = Minecraft.getMinecraft().world; float r = color[0]; float g = color[1]; float b = color[2]; Vec3d vec1 = new Vec3d(firstX, firstY, firstZ); Vec3d vec2 = new Vec3d(secondX, secondY, secondZ); Vec3d combinedVec = vec2.subtract(vec1); double rot = rotationTime > 0 ? (360D * ((world.getTotalWorldTime() % rotationTime) / rotationTime)) : 0; double pitch = Math.atan2(combinedVec.yCoord, Math.sqrt(combinedVec.xCoord * combinedVec.xCoord + combinedVec.zCoord * combinedVec.zCoord)); double yaw = Math.atan2(-combinedVec.zCoord, combinedVec.xCoord); double length = combinedVec.lengthVector(); GlStateManager.pushMatrix(); GlStateManager.disableLighting(); GlStateManager.enableBlend(); GlStateManager.blendFunc(SourceFactor.SRC_ALPHA, DestFactor.ONE); int func = GL11.glGetInteger(GL11.GL_ALPHA_TEST_FUNC); float ref = GL11.glGetFloat(GL11.GL_ALPHA_TEST_REF); GlStateManager.alphaFunc(GL11.GL_ALWAYS, 0); GlStateManager.translate(firstX - TileEntityRendererDispatcher.staticPlayerX, firstY - TileEntityRendererDispatcher.staticPlayerY, firstZ - TileEntityRendererDispatcher.staticPlayerZ); GlStateManager.rotate((float) (180 * yaw / Math.PI), 0, 1, 0); GlStateManager.rotate((float) (180 * pitch / Math.PI), 0, 0, 1); GlStateManager.rotate((float) rot, 1, 0, 0); /*if(r != r2 || g != g2 || b != b2){ render.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_TEX_COLOR); Minecraft.getMinecraft().renderEngine.bindTexture(ClientUtil.LIGHT_BEAM_GRADIENT); render.pos(length, -beamWidth, beamWidth).tex(0, 0).color(r, g, b, alpha).endVertex(); render.pos(length, beamWidth, beamWidth).tex(0, 1).color(r, g, b, alpha).endVertex(); render.pos(0, beamWidth, beamWidth).tex(1, 1).color(r, g, b, alpha).endVertex(); render.pos(0, -beamWidth, beamWidth).tex(1, 0).color(r, g, b, alpha).endVertex(); render.pos(length, -beamWidth, beamWidth).tex(1, 0).color(r2, g2, b2, alpha).endVertex(); render.pos(length, beamWidth, beamWidth).tex(1, 1).color(r2, g2, b2, alpha).endVertex(); render.pos(0, beamWidth, beamWidth).tex(0, 1).color(r2, g2, b2, alpha).endVertex(); render.pos(0, -beamWidth, beamWidth).tex(0, 0).color(r2, g2, b2, alpha).endVertex(); render.pos(length, beamWidth, -beamWidth).tex(0, 0).color(r, g, b, alpha).endVertex(); render.pos(length, -beamWidth, -beamWidth).tex(0, 1).color(r, g, b, alpha).endVertex(); render.pos(0, -beamWidth, -beamWidth).tex(1, 1).color(r, g, b, alpha).endVertex(); render.pos(0, beamWidth, -beamWidth).tex(1, 0).color(r, g, b, alpha).endVertex(); render.pos(length, beamWidth, -beamWidth).tex(1, 0).color(r2, g2, b2, alpha).endVertex(); render.pos(length, -beamWidth, -beamWidth).tex(1, 1).color(r2, g2, b2, alpha).endVertex(); render.pos(0, -beamWidth, -beamWidth).tex(0, 1).color(r2, g2, b2, alpha).endVertex(); render.pos(0, beamWidth, -beamWidth).tex(0, 0).color(r2, g2, b2, alpha).endVertex(); render.pos(length, beamWidth, beamWidth).tex(0, 0).color(r, g, b, alpha).endVertex(); render.pos(length, beamWidth, -beamWidth).tex(0, 1).color(r, g, b, alpha).endVertex(); render.pos(0, beamWidth, -beamWidth).tex(1, 1).color(r, g, b, alpha).endVertex(); render.pos(0, beamWidth, beamWidth).tex(1, 0).color(r, g, b, alpha).endVertex(); render.pos(length, beamWidth, beamWidth).tex(1, 0).color(r2, g2, b2, alpha).endVertex(); render.pos(length, beamWidth, -beamWidth).tex(1, 1).color(r2, g2, b2, alpha).endVertex(); render.pos(0, beamWidth, -beamWidth).tex(0, 1).color(r2, g2, b2, alpha).endVertex(); render.pos(0, beamWidth, beamWidth).tex(0, 0).color(r2, g2, b2, alpha).endVertex(); render.pos(length, -beamWidth, -beamWidth).tex(0, 0).color(r, g, b, alpha).endVertex(); render.pos(length, -beamWidth, beamWidth).tex(0, 1).color(r, g, b, alpha).endVertex(); render.pos(0, -beamWidth, beamWidth).tex(1, 1).color(r, g, b, alpha).endVertex(); render.pos(0, -beamWidth, -beamWidth).tex(1, 0).color(r, g, b, alpha).endVertex(); render.pos(length, -beamWidth, -beamWidth).tex(1, 0).color(r2, g2, b2, alpha).endVertex(); render.pos(length, -beamWidth, beamWidth).tex(1, 1).color(r2, g2, b2, alpha).endVertex(); render.pos(0, -beamWidth, beamWidth).tex(0, 1).color(r2, g2, b2, alpha).endVertex(); render.pos(0, -beamWidth, -beamWidth).tex(0, 0).color(r2, g2, b2, alpha).endVertex(); tessy.draw(); } else{*/ GlStateManager.disableTexture2D(); render.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_TEX_LMAP_COLOR); for (double i = 0; i < 4; i++) { double width = beamWidth * (i / 4.0); render.pos(length, width, width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); render.pos(0, width, width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha).endVertex(); render.pos(0, -width, width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha).endVertex(); render.pos(length, -width, width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); render.pos(length, -width, -width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); render.pos(0, -width, -width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); render.pos(0, width, -width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha).endVertex(); render.pos(length, width, -width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); render.pos(length, width, -width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); render.pos(0, width, -width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha).endVertex(); render.pos(0, width, width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha).endVertex(); render.pos(length, width, width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); render.pos(length, -width, width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); render.pos(0, -width, width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha).endVertex(); render.pos(0, -width, -width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); render.pos(length, -width, -width).tex(0, 0).lightmap(maxLightX, maxLightY).color(r, g, b, alpha) .endVertex(); } tessy.draw(); GlStateManager.enableTexture2D(); //} GlStateManager.alphaFunc(func, ref); GlStateManager.blendFunc(SourceFactor.SRC_ALPHA, DestFactor.ONE_MINUS_SRC_ALPHA); GlStateManager.disableBlend(); GlStateManager.enableLighting(); GlStateManager.popMatrix(); } public static float[] getWheelColor(float pos) { if (pos < 85.0f) { return new float[] { pos * 3.0F, 255.0f - pos * 3.0f, 0.0f }; } if (pos < 170.0f) { return new float[] { 255.0f - (pos -= 85.0f) * 3.0f, 0.0f, pos * 3.0f }; } return new float[] { 0.0f, (pos -= 170.0f) * 3.0f, 255.0f - pos * 3.0f }; } }