Java tutorial
/* * The FML Forge Mod Loader suite. * Copyright (C) 2012 cpw * * This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package cpw.mods.fml.client; import java.awt.Dimension; import java.awt.image.BufferedImage; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import javax.imageio.ImageIO; import net.minecraft.client.Minecraft; import net.minecraft.client.gui.FontRenderer; import net.minecraft.client.gui.GuiButton; import net.minecraft.client.gui.GuiScreen; import net.minecraft.client.renderer.Tessellator; import net.minecraft.client.renderer.texture.DynamicTexture; import net.minecraft.client.renderer.texture.TextureManager; import net.minecraft.client.resources.I18n; import net.minecraft.client.resources.IResourcePack; import net.minecraft.util.ResourceLocation; import org.apache.logging.log4j.Level; import org.lwjgl.opengl.GL11; import com.google.common.base.Strings; import cpw.mods.fml.common.FMLLog; import cpw.mods.fml.common.Loader; import cpw.mods.fml.common.ModContainer; import cpw.mods.fml.common.ModContainer.Disableable; /** * @author cpw * */ public class GuiModList extends GuiScreen { private GuiScreen mainMenu; private GuiSlotModList modList; private int selected = -1; private ModContainer selectedMod; private int listWidth; private ArrayList<ModContainer> mods; private GuiButton configModButton; private GuiButton disableModButton; private ResourceLocation cachedLogo; private Dimension cachedLogoDimensions; /** * @param mainMenu */ public GuiModList(GuiScreen mainMenu) { this.mainMenu = mainMenu; this.mods = new ArrayList<ModContainer>(); FMLClientHandler.instance().addSpecialModEntries(mods); for (ModContainer mod : Loader.instance().getModList()) { if (mod.getMetadata() != null && mod.getMetadata().parentMod == null && !Strings.isNullOrEmpty(mod.getMetadata().parent)) { String parentMod = mod.getMetadata().parent; ModContainer parentContainer = Loader.instance().getIndexedModList().get(parentMod); if (parentContainer != null) { mod.getMetadata().parentMod = parentContainer; parentContainer.getMetadata().childMods.add(mod); continue; } } else if (mod.getMetadata() != null && mod.getMetadata().parentMod != null) { continue; } mods.add(mod); } } @SuppressWarnings("unchecked") @Override public void initGui() { for (ModContainer mod : mods) { listWidth = Math.max(listWidth, getFontRenderer().getStringWidth(mod.getName()) + 10); listWidth = Math.max(listWidth, getFontRenderer().getStringWidth(mod.getVersion()) + 10); } listWidth = Math.min(listWidth, 150); this.buttonList.add(new GuiButton(6, this.width / 2 - 75, this.height - 38, I18n.format("gui.done"))); configModButton = new GuiButton(20, 10, this.height - 60, this.listWidth, 20, "Config"); disableModButton = new GuiButton(21, 10, this.height - 38, this.listWidth, 20, "Disable"); this.buttonList.add(configModButton); this.buttonList.add(disableModButton); this.modList = new GuiSlotModList(this, mods, listWidth); this.modList.registerScrollButtons(this.buttonList, 7, 8); } @Override protected void actionPerformed(GuiButton button) { if (button.enabled) { switch (button.id) { case 6: this.mc.displayGuiScreen(this.mainMenu); return; case 20: try { IModGuiFactory guiFactory = FMLClientHandler.instance().getGuiFactoryFor(selectedMod); GuiScreen newScreen = guiFactory.mainConfigGuiClass().getConstructor(GuiScreen.class) .newInstance(this); this.mc.displayGuiScreen(newScreen); } catch (Exception e) { FMLLog.log(Level.ERROR, e, "There was a critical issue trying to build the config GUI for %s", selectedMod.getModId()); } return; } } super.actionPerformed(button); } public int drawLine(String line, int offset, int shifty) { this.fontRendererObj.drawString(line, offset, shifty, 0xd7edea); return shifty + 10; } @Override public void drawScreen(int p_571_1_, int p_571_2_, float p_571_3_) { this.modList.drawScreen(p_571_1_, p_571_2_, p_571_3_); this.drawCenteredString(this.fontRendererObj, "Mod List", this.width / 2, 16, 0xFFFFFF); int offset = this.listWidth + 20; if (selectedMod != null) { GL11.glEnable(GL11.GL_BLEND); if (!selectedMod.getMetadata().autogenerated) { configModButton.visible = true; disableModButton.visible = true; disableModButton.packedFGColour = 0xFF3377; configModButton.enabled = false; int shifty = 35; String logoFile = selectedMod.getMetadata().logoFile; if (!logoFile.isEmpty()) { GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F); TextureManager tm = mc.getTextureManager(); IResourcePack pack = FMLClientHandler.instance().getResourcePackFor(selectedMod.getModId()); try { if (cachedLogo == null) { BufferedImage logo = null; if (pack != null) { logo = pack.getPackImage(); } else { InputStream logoResource = getClass().getResourceAsStream(logoFile); if (logoResource != null) { logo = ImageIO.read(logoResource); } } if (logo != null) { cachedLogo = tm.getDynamicTextureLocation("modlogo", new DynamicTexture(logo)); cachedLogoDimensions = new Dimension(logo.getWidth(), logo.getHeight()); } } if (cachedLogo != null) { this.mc.renderEngine.bindTexture(cachedLogo); double scaleX = cachedLogoDimensions.width / 200.0; double scaleY = cachedLogoDimensions.height / 65.0; double scale = 1.0; if (scaleX > 1 || scaleY > 1) { scale = 1.0 / Math.max(scaleX, scaleY); } cachedLogoDimensions.width *= scale; cachedLogoDimensions.height *= scale; int top = 32; Tessellator tess = Tessellator.instance; tess.startDrawingQuads(); tess.addVertexWithUV(offset, top + cachedLogoDimensions.height, zLevel, 0, 1); tess.addVertexWithUV(offset + cachedLogoDimensions.width, top + cachedLogoDimensions.height, zLevel, 1, 1); tess.addVertexWithUV(offset + cachedLogoDimensions.width, top, zLevel, 1, 0); tess.addVertexWithUV(offset, top, zLevel, 0, 0); tess.draw(); shifty += 65; } } catch (IOException e) { ; } } this.fontRendererObj.drawStringWithShadow(selectedMod.getMetadata().name, offset, shifty, 0xFFFFFF); shifty += 12; shifty = drawLine(String.format("Version: %s (%s)", selectedMod.getDisplayVersion(), selectedMod.getVersion()), offset, shifty); shifty = drawLine(String.format("Mod ID: '%s' Mod State: %s", selectedMod.getModId(), Loader.instance().getModState(selectedMod)), offset, shifty); if (!selectedMod.getMetadata().credits.isEmpty()) { shifty = drawLine(String.format("Credits: %s", selectedMod.getMetadata().credits), offset, shifty); } shifty = drawLine(String.format("Authors: %s", selectedMod.getMetadata().getAuthorList()), offset, shifty); shifty = drawLine(String.format("URL: %s", selectedMod.getMetadata().url), offset, shifty); shifty = drawLine( selectedMod.getMetadata().childMods.isEmpty() ? "No child mods for this mod" : String.format("Child mods: %s", selectedMod.getMetadata().getChildModList()), offset, shifty); int rightSide = this.width - offset - 20; if (rightSide > 20) { this.getFontRenderer().drawSplitString(selectedMod.getMetadata().description, offset, shifty + 10, rightSide, 0xDDDDDD); } Disableable disableable = selectedMod.canBeDisabled(); if (disableable == Disableable.RESTART) { disableModButton.enabled = true; disableModButton.visible = true; disableModButton.packedFGColour = 0xFF3377; } else if (disableable == Disableable.YES) { disableModButton.enabled = true; disableModButton.visible = true; disableModButton.packedFGColour = 0; } else { disableModButton.packedFGColour = 0; disableModButton.visible = true; disableModButton.enabled = false; } IModGuiFactory guiFactory = FMLClientHandler.instance().getGuiFactoryFor(selectedMod); if (guiFactory == null || guiFactory.mainConfigGuiClass() == null) { configModButton.visible = true; configModButton.enabled = false; } else { configModButton.visible = true; configModButton.enabled = true; } } else { offset = (this.listWidth + this.width) / 2; this.drawCenteredString(this.fontRendererObj, selectedMod.getName(), offset, 35, 0xFFFFFF); this.drawCenteredString(this.fontRendererObj, String.format("Version: %s", selectedMod.getVersion()), offset, 45, 0xFFFFFF); this.drawCenteredString(this.fontRendererObj, String.format("Mod State: %s", Loader.instance().getModState(selectedMod)), offset, 55, 0xFFFFFF); this.drawCenteredString(this.fontRendererObj, "No mod information found", offset, 65, 0xDDDDDD); this.drawCenteredString(this.fontRendererObj, "Ask your mod author to provide a mod mcmod.info file", offset, 75, 0xDDDDDD); configModButton.visible = false; disableModButton.visible = false; } GL11.glDisable(GL11.GL_BLEND); } else { configModButton.visible = false; disableModButton.visible = false; } super.drawScreen(p_571_1_, p_571_2_, p_571_3_); } Minecraft getMinecraftInstance() { return mc; } FontRenderer getFontRenderer() { return fontRendererObj; } /** * @param var1 */ public void selectModIndex(int var1) { this.selected = var1; if (var1 >= 0 && var1 <= mods.size()) { this.selectedMod = mods.get(selected); } else { this.selectedMod = null; } cachedLogo = null; } public boolean modIndexSelected(int var1) { return var1 == selected; } }