SinglePlayerCommands.java

package net.minecraft.src;

import java.util.StringTokenizer;

import net.minecraft.client.Minecraft;

public class SinglePlayerCommands {
	
	/*
	 * Implements a simple command parser launched from the chat console, easily hookable:
	 * 
	 * 1. In Minecraft.java, there's code which prevents the chat console from appearing
	 *    if you are not playing SMP, remove it and change for something else like I did,
	 *    (I have PlayerEntity.enableCheats). Also pass an instance of the Minecraft object
	 *    to GuiChat, for example:
	 *    
	 *    if((this.isMultiplayerWorld() || this.thePlayer.enableCheats) && Keyboard.getEventKey() == this.options.keyBindChat.keyCode) {
	 *        this.displayGuiScreen(new GuiChat(this));
	 *    }
	 *    
	 *    This will make the chat console pop when the bound key is pressed.
	 *    
	 * 2. In GuiChat.java, change the constructor to get the Minecraft instance & store it.
	 *    Also create an instance of this class:
	 * 
	 *    public GuiChat(Minecraft mc) {
	 *          this.mc = mc;
	 *          this.singlePlayerCommands = new SinglePlayerCommands(this.mc);
	 *    }
	 *    
	 * 3. Also in GuiChat.java, add the hook to this code in the keyTyped method when newline
	 *    is detected, running the actual chat if in SMP, or calling this parser:
	 *    
	 *    protected void keyTyped(char character, int key) {
	 *    [...]
	 *    if(key == 28) {
	 *        String string3 = this.message.trim();
	 *        if(string3.length() > 0) {
	 *            if (this.mc.isMultiplayerWorld()) {
	 *                this.mc.thePlayer.sendChatMessage(this.message.trim());
	 *            } else {
	 *                this.singlePlayerCommands.executeCommand(this.message.trim());
	 *            }
	 *        }
	 *        
	 * This code includes a minimal parser which understands gamemode / time set / tp.
	 * It should be easy to adapt it to fit your needs.
	 * 
	 * Enjoy!
	 * 
	 * by na_th_an
	 * Use freely, credit if you wish. Make mods.
	 */
	
	private Minecraft mc;
	
	public SinglePlayerCommands(Minecraft mc) {
		this.mc = mc;
		System.out.println (this.mc);
	}
	
	public void executeCommand(String command) {
		StringTokenizer tokenizer = new StringTokenizer(command);
		
		int numTokens = tokenizer.countTokens();
		if (numTokens == 0) return;
		
		String[] tokens = new String [numTokens];
		int idx = 0;
		while (tokenizer.hasMoreTokens()) {
			tokens [idx++] = tokenizer.nextToken();
		}
		
		if (idx > 0) {
			String cmd = tokens [0];
			if ("/gamemode".equals(cmd)) {
				if (idx > 1) {
					String gameMode = tokens [1];
					if ("0".equals(gameMode) || "survival".equals(gameMode)) {
						if (this.mc.thePlayer.isCreative) this.mc.ingameGUI.addChatMessage("Game mode changed to survival");
						this.mc.thePlayer.isCreative = false;
					} else if ("1".equals(gameMode) || "creative".equals(gameMode)) {
						if (!this.mc.thePlayer.isCreative) this.mc.ingameGUI.addChatMessage("Game mode changed to creative");
						this.mc.thePlayer.isCreative = true;
					}
				}
			} else if ("/time".equals(cmd)) {
				if (idx > 2 && "set".equals(tokens [1])) {
					int timeSet = -1;
					if ("night".equals(tokens [2])) {
						timeSet = 14000;
					} else if ("day".equals(tokens [2])) {
						timeSet = 1000;
					} else {
						try {
							timeSet = Integer.parseInt(tokens [2]);
						} catch (Exception e) { }
					}
					long timeBaseDay = this.mc.theWorld.worldTime / 24000L * 24000L;
					long elapsedDay = this.mc.theWorld.worldTime % 24000L;
					if (timeSet > elapsedDay) timeBaseDay += 24000L;
					this.mc.theWorld.worldTime = timeBaseDay + timeSet;
					this.mc.ingameGUI.addChatMessage("Time set to " + timeSet);
				}
			} else if ("/tp".equals(cmd)) {
				if (idx > 3) {
					double x = this.mc.thePlayer.posX;
					double y = this.mc.thePlayer.posY;
					double z = this.mc.thePlayer.posZ;
					
					try {
						x = Double.parseDouble(tokens [1]);
					} catch (Exception e) { }
					
					try {
						y = Double.parseDouble(tokens [2]);
					} catch (Exception e) { }
					
					try {
						z = Double.parseDouble(tokens [3]);
					} catch (Exception e) { }
					
					this.mc.thePlayer.setPosition(x, y, z);
					this.mc.ingameGUI.addChatMessage("Teleporting to " + x + " " + y + " " + z);
				}
			}
		}
	}
}