Import an event api and optimize rendermodule by minor amounts

.vscode/settings.json

@@ -1,3 +1,4 @@
 {
-    "java.dependency.packagePresentation": "hierarchical"
+    "java.dependency.packagePresentation": "hierarchical",
+    "java.jdt.ls.vmargs": "-XX:+UseParallelGC -XX:GCTimeRatio=4 -XX:AdaptiveSizePolicyWeight=90 -Dsun.zip.disableMemoryMapping=true -Xmx2G -Xms100m -Xlog:disable"
 }

src/main/java/com/darkmagician6/eventapi/EventAPI.java

@@ -0,0 +1,44 @@
+/**
+ * This is an API used for handling events across your java based projects.
+ * It's meant to be simple to use without sacrificing performance and extensibility.
+ *
+ * Currently the API is in beta phase but it's stable and ready to be used. 
+ *
+ * If you have any suggestion for improvements/fixes for shit, 
+ * feel free to make a pull request on the bitbucket: https://bitbucket.org/DarkMagician6/eventapi/overview.
+ *
+ * For information on how to use the API take a look at the wiki:
+ * https://bitbucket.org/DarkMagician6/eventapi/wiki/Home
+ *
+ * @Todo Improve/update the wiki.
+ */
+package com.darkmagician6.eventapi;
+
+/**
+ * Main class for the API.
+ * Contains various information about the API.
+ *
+ * @author DarkMagician6
+ * @since July 31, 2013
+ */
+public final class EventAPI {
+	
+	/**
+	 * No need to create an Object of this class as all Methods are static.
+	 */
+	private EventAPI() {
+	}
+
+    /**
+     * The current version of the API.
+     */
+    public static final String VERSION = String.format("%s-%s", "0.7", "beta");
+
+    /**
+     * Array containing the authors of the API.
+     */
+    public static final String[] AUTHORS = {
+            "DarkMagician6"
+    };
+
+}

src/main/java/com/darkmagician6/eventapi/EventManager.java

@@ -0,0 +1,349 @@
+package com.darkmagician6.eventapi;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import com.darkmagician6.eventapi.events.Event;
+import com.darkmagician6.eventapi.events.EventStoppable;
+import com.darkmagician6.eventapi.types.Priority;
+
+/**
+ * 
+ * 
+ * @author DarkMagician6
+ * @since February 2, 2014
+ */
+public final class EventManager {
+	
+	/**
+	 * HashMap containing all the registered MethodData sorted on the event parameters of the methods.
+	 */
+	private static final Map<Class<? extends Event>, List<MethodData>> REGISTRY_MAP = new HashMap<Class<? extends Event>, List<MethodData>>();
+	
+	/**
+	 * All methods in this class are static so there would be no reason to create an object of the EventManager class.
+	 */
+	private EventManager() {
+	}
+	
+    /**
+     * Registers all the methods marked with the EventTarget annotation in the class of the given Object.
+     *
+     * @param object
+     *         Object that you want to register.
+     */
+    public static void register(Object object) {
+        for (final Method method : object.getClass().getDeclaredMethods()) {
+            if (isMethodBad(method)) {
+                continue;
+            }
+
+            register(method, object);
+        }
+    }
+
+    /**
+     * Registers the methods marked with the EventTarget annotation and that require
+     * the specified Event as the parameter in the class of the given Object.
+     *
+     * @param object
+     *         Object that contains the Method you want to register.
+     * @param Parameter
+     *         class for the marked method we are looking for.
+     */
+    public static void register(Object object, Class<? extends Event> eventClass) {
+        for (final Method method : object.getClass().getDeclaredMethods()) {
+            if (isMethodBad(method, eventClass)) {
+                continue;
+            }
+
+            register(method, object);
+        }
+    }
+
+    /**
+     * Unregisters all the methods inside the Object that are marked with the EventTarget annotation.
+     *
+     * @param object
+     *         Object of which you want to unregister all Methods.
+     */
+    public static void unregister(Object object) {
+        for (final List<MethodData> dataList : REGISTRY_MAP.values()) {
+            for (final MethodData data : dataList) {
+                if (data.getSource().equals(object)) {
+                    dataList.remove(data);
+                }
+            }
+        }
+
+        cleanMap(true);
+    }
+
+    /**
+     * Unregisters all the methods in the given Object that have the specified class as a parameter.
+     *
+     * @param object
+     *         Object that implements the Listener interface.
+     * @param Parameter
+     *         class for the method to remove.
+     */
+    public static void unregister(Object object, Class<? extends Event> eventClass) {
+        if (REGISTRY_MAP.containsKey(eventClass)) {
+            for (final MethodData data : REGISTRY_MAP.get(eventClass)) {
+                if (data.getSource().equals(object)) {
+                	REGISTRY_MAP.get(eventClass).remove(data);
+                }
+            }
+
+            cleanMap(true);
+        }
+    }
+
+    /**
+     * Registers a new MethodData to the HashMap.
+     * If the HashMap already contains the key of the Method's first argument it will add
+     * a new MethodData to key's matching list and sorts it based on Priority. @see com.darkmagician6.eventapi.types.Priority
+     * Otherwise it will put a new entry in the HashMap with a the first argument's class
+     * and a new CopyOnWriteArrayList containing the new MethodData.
+     *
+     * @param method
+     *         Method to register to the HashMap.
+     * @param object
+     *         Source object of the method.
+     */
+    private static void register(Method method, Object object) {
+    	Class<? extends Event> indexClass = (Class<? extends Event>) method.getParameterTypes()[0];
+    	//New MethodData from the Method we are registering.
+    	final MethodData data = new MethodData(object, method, method.getAnnotation(EventTarget.class).value());
+    	
+    	//Set's the method to accessible so that we can also invoke it if it's protected or private.
+    	if (!data.getTarget().isAccessible()) {
+    		data.getTarget().setAccessible(true);
+    	}
+	
+    	if (REGISTRY_MAP.containsKey(indexClass)) {
+    		if (!REGISTRY_MAP.get(indexClass).contains(data)) {
+    			REGISTRY_MAP.get(indexClass).add(data);
+    			sortListValue(indexClass);
+    		}
+    	} else {
+    		REGISTRY_MAP.put(indexClass, new CopyOnWriteArrayList<MethodData>() {
+    			//Eclipse was bitching about a serialVersionUID.
+    			private static final long serialVersionUID = 666L; {
+    				add(data);
+    			}
+    		});
+    	}
+    }
+
+    /**
+     * Removes an entry based on the key value in the map.
+     *
+     * @param indexClass
+     *         They index key in the map of which the entry should be removed.
+     */
+    public static void removeEntry(Class<? extends Event> indexClass) {
+        Iterator<Map.Entry<Class<? extends Event>, List<MethodData>>> mapIterator = REGISTRY_MAP.entrySet().iterator();
+
+        while (mapIterator.hasNext()) {
+            if (mapIterator.next().getKey().equals(indexClass)) {
+                mapIterator.remove();
+                break;
+            }
+        }
+    }
+
+    /**
+     * Cleans up the map entries.
+     * Uses an iterator to make sure that the entry is completely removed.
+     *
+     * @param onlyEmptyEntries
+     *         If true only remove the entries with an empty list, otherwise remove all the entries.
+     */
+    public static void cleanMap(boolean onlyEmptyEntries) {
+        Iterator<Map.Entry<Class<? extends Event>, List<MethodData>>> mapIterator = REGISTRY_MAP.entrySet().iterator();
+
+        while (mapIterator.hasNext()) {
+            if (!onlyEmptyEntries || mapIterator.next().getValue().isEmpty()) {
+                mapIterator.remove();
+            }
+        }
+    }
+
+    /**
+     * Sorts the List that matches the corresponding Event class based on priority value.
+     *
+     * @param indexClass
+     *         The Event class index in the HashMap of the List to sort.
+     */
+    private static void sortListValue(Class<? extends Event> indexClass) {
+        List<MethodData> sortedList = new CopyOnWriteArrayList<MethodData>();
+
+        for (final byte priority : Priority.VALUE_ARRAY) {
+            for (final MethodData data : REGISTRY_MAP.get(indexClass)) {
+                if (data.getPriority() == priority) {
+                    sortedList.add(data);
+                }
+            }
+        }
+
+        //Overwriting the existing entry.
+        REGISTRY_MAP.put(indexClass, sortedList);
+    }
+
+    /**
+     * Checks if the method does not meet the requirements to be used to receive event calls from the Dispatcher.
+     * Performed checks: Checks if the parameter length is not 1 and if the EventTarget annotation is not present.
+     *
+     * @param method
+     *         Method to check.
+     *
+     * @return True if the method should not be used for receiving event calls from the Dispatcher.
+     *
+     * @see com.darkmagician6.eventapi.EventTarget
+     */
+    private static boolean isMethodBad(Method method) {
+        return method.getParameterTypes().length != 1 || !method.isAnnotationPresent(EventTarget.class);
+    }
+
+    /**
+     * Checks if the method does not meet the requirements to be used to receive event calls from the Dispatcher.
+     * Performed checks: Checks if the parameter class of the method is the same as the event we want to receive.
+     *
+     * @param method
+     *         Method to check.
+     * @param Class
+     *         of the Event we want to find a method for receiving it.
+     *
+     * @return True if the method should not be used for receiving event calls from the Dispatcher.
+     *
+     * @see com.darkmagician6.eventapi.EventTarget
+     */
+    private static boolean isMethodBad(Method method, Class<? extends Event> eventClass) {
+        return isMethodBad(method) || !method.getParameterTypes()[0].equals(eventClass);
+    }
+	
+    /**
+     * Call's an event and invokes the right methods that are listening to the event call.
+     * First get's the matching list from the registry map based on the class of the event.
+     * Then it checks if the list is not null. After that it will check if the event is an instance of
+     * EventStoppable and if so it will add an extra check when looping trough the data.
+     * If the Event was an instance of EventStoppable it will check every loop if the EventStoppable is stopped, and if
+     * it is it will break the loop, thus stopping the call.
+     * For every MethodData in the list it will invoke the Data's method with the Event as the argument.
+     * After that is all done it will return the Event.
+     *
+     * @param event
+     *         Event to dispatch.
+     *
+     * @return Event in the state after dispatching it.
+     */
+    public static final Event call(final Event event) {
+        List<MethodData> dataList = REGISTRY_MAP.get(event.getClass());
+
+        if (dataList != null) {
+            if (event instanceof EventStoppable) {
+                EventStoppable stoppable = (EventStoppable) event;
+
+                for (final MethodData data : dataList) {
+                    invoke(data, event);
+
+                    if (stoppable.isStopped()) {
+                        break;
+                    }
+                }
+            } else {
+                for (final MethodData data : dataList) {
+                    invoke(data, event);
+                }
+            }
+        }
+
+        return event;
+    }
+    
+    /**
+     * Invokes a MethodData when an Event call is made.
+     *
+     * @param data
+     *         The data of which the targeted Method should be invoked.
+     * @param argument
+     *         The called Event which should be used as an argument for the targeted Method.
+     *         
+     * TODO: Error messages.
+     */
+    private static void invoke(MethodData data, Event argument) {
+        try {
+            data.getTarget().invoke(data.getSource(), argument);
+        } catch (IllegalAccessException e) {
+        } catch (IllegalArgumentException e) {
+        } catch (InvocationTargetException e) {
+        }
+    }
+	
+	/**
+	 * 
+	 * @author DarkMagician6
+	 * @since January 2, 2014
+	 */
+	private static final class MethodData {
+
+	    private final Object source;
+
+	    private final Method target;
+
+	    private final byte priority;
+
+	    /**
+	     * Sets the values of the data.
+	     *
+	     * @param source
+	     *         The source Object of the data. Used by the VM to
+	     *         determine to which object it should send the call to.
+	     * @param target
+	     *         The targeted Method to which the Event should be send to.
+	     * @param priority
+	     *         The priority of this Method. Used by the registry to sort
+	     *         the data on.
+	     */
+	    public MethodData(Object source, Method target, byte priority) {
+	        this.source = source;
+	        this.target = target;
+	        this.priority = priority;
+	    }
+
+	    /**
+	     * Gets the source Object of the data.
+	     *
+	     * @return Source Object of the targeted Method.
+	     */
+	    public Object getSource() {
+	        return source;
+	    }
+
+	    /**
+	     * Gets the targeted Method.
+	     *
+	     * @return The Method that is listening to certain Event calls.
+	     */
+	    public Method getTarget() {
+	        return target;
+	    }
+
+	    /**
+	     * Gets the priority value of the targeted Method.
+	     *
+	     * @return The priority value of the targeted Method.
+	     */
+	    public byte getPriority() {
+	        return priority;
+	    }
+
+	}
+
+}

src/main/java/com/darkmagician6/eventapi/EventTarget.java

@@ -0,0 +1,21 @@
+package com.darkmagician6.eventapi;
+
+import com.darkmagician6.eventapi.types.Priority;
+
+import java.lang.annotation.*;
+
+/**
+ * Marks a method so that the EventManager knows that it should be registered.
+ * The priority of the method is also set with this.
+ *
+ * @author DarkMagician6
+ * @see com.darkmagician6.eventapi.types.Priority
+ * @since July 30, 2013
+ */
+@Documented
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface EventTarget {
+
+    byte value() default Priority.MEDIUM;
+}

src/main/java/com/darkmagician6/eventapi/events/Cancellable.java

@@ -0,0 +1,26 @@
+package com.darkmagician6.eventapi.events;
+
+/**
+ * Simple interface which should be implemented in events that can be cancelled.
+ *
+ * @author DarkMagician6
+ * @since August 27, 2013
+ */
+public interface Cancellable {
+
+    /**
+     * Gets the current cancelled state of the event.
+     *
+     * @return True if the event is cancelled.
+     */
+    boolean isCancelled();
+
+    /**
+     * Sets the cancelled state of the event.
+     *
+     * @param state
+     *         Whether the event should be cancelled or not.
+     */
+    void setCancelled(boolean state);
+
+}

src/main/java/com/darkmagician6/eventapi/events/Event.java

@@ -0,0 +1,12 @@
+package com.darkmagician6.eventapi.events;
+
+/**
+ * The most basic form of an event.
+ * You have to implement this interface in order for the EventAPI to recognize the event.
+ *
+ * @author DarkMagician6
+ * @since July 30, 2013
+ */
+public interface Event {
+
+}

src/main/java/com/darkmagician6/eventapi/events/EventStoppable.java

@@ -0,0 +1,38 @@
+package com.darkmagician6.eventapi.events;
+
+/**
+ * The most basic form of an stoppable Event.
+ * Stoppable events are called seperate from other events and the calling of methods is stopped
+ * as soon as the EventStoppable is stopped.
+ *
+ * @author DarkMagician6
+ * @since 26-9-13
+ */
+public abstract class EventStoppable implements Event {
+
+    private boolean stopped;
+
+    /**
+     * No need for the constructor to be public.
+     */
+    protected EventStoppable() {
+    }
+
+    /**
+     * Sets the stopped state to true.
+     */
+    public void stop() {
+        stopped = true;
+    }
+
+    /**
+     * Checks the stopped boolean.
+     *
+     * @return
+     *      True if the EventStoppable is stopped.
+     */
+    public boolean isStopped() {
+        return stopped;
+    }
+
+}

src/main/java/com/darkmagician6/eventapi/events/Typed.java

@@ -0,0 +1,24 @@
+package com.darkmagician6.eventapi.events;
+
+
+/**
+ * Simple interface that should be implemented in typed events.
+ * A typed event is an event that can be called on multiple places
+ * with the type defining where it was called.
+ * <p/>
+ * The type should be defined in the constructor when the new instance
+ * of the event is created.
+ *
+ * @author DarkMagician6
+ * @since August 27, 2013
+ */
+public interface Typed {
+
+    /**
+     * Gets the current type of the event.
+     *
+     * @return The type ID of the event.
+     */
+    byte getType();
+
+}

src/main/java/com/darkmagician6/eventapi/events/callables/EventCancellable.java

@@ -0,0 +1,35 @@
+package com.darkmagician6.eventapi.events.callables;
+
+import com.darkmagician6.eventapi.events.Cancellable;
+import com.darkmagician6.eventapi.events.Event;
+
+/**
+ * Abstract example implementation of the Cancellable interface.
+ *
+ * @author DarkMagician6
+ * @since August 27, 2013
+ */
+public abstract class EventCancellable implements Event, Cancellable {
+
+    private boolean cancelled;
+
+    protected EventCancellable() {
+    }
+
+    /**
+     * @see com.darkmagician6.eventapi.events.Cancellable.isCancelled
+     */
+    @Override
+    public boolean isCancelled() {
+        return cancelled;
+    }
+
+    /**
+     * @see com.darkmagician6.eventapi.events.Cancellable.setCancelled
+     */
+    @Override
+    public void setCancelled(boolean state) {
+        cancelled = state;
+    }
+
+}

src/main/java/com/darkmagician6/eventapi/events/callables/EventTyped.java

@@ -0,0 +1,34 @@
+package com.darkmagician6.eventapi.events.callables;
+
+import com.darkmagician6.eventapi.events.Event;
+import com.darkmagician6.eventapi.events.Typed;
+
+/**
+ * Abstract example implementation of the Typed interface.
+ *
+ * @author DarkMagician6
+ * @since August 27, 2013
+ */
+public abstract class EventTyped implements Event, Typed {
+
+    private final byte type;
+
+    /**
+     * Sets the type of the event when it's called.
+     *
+     * @param eventType
+     *         The type ID of the event.
+     */
+    protected EventTyped(byte eventType) {
+        type = eventType;
+    }
+
+    /**
+     * @see com.darkmagician6.eventapi.events.Typed.getType
+     */
+    @Override
+    public byte getType() {
+        return type;
+    }
+
+}

src/main/java/com/darkmagician6/eventapi/types/EventType.java

@@ -0,0 +1,21 @@
+package com.darkmagician6.eventapi.types;
+
+/**
+ * Types that can be used for typed events.
+ *
+ * @author DarkMagician6
+ * @since August 27, 2013
+ */
+public class EventType {
+
+    /**
+     * Used to define the type of a typed event.
+     */
+    public static final byte
+            PRE = 0,
+            ON = 1,
+            POST = 2,
+            SEND = 3,
+            RECIEVE = 4;
+
+}

src/main/java/com/darkmagician6/eventapi/types/Priority.java

@@ -0,0 +1,54 @@
+package com.darkmagician6.eventapi.types;
+
+/**
+ * The priority for the dispatcher to determine what method should be invoked first.
+ * Ram was talking about the memory usage of the way I store the data so I decided
+ * to just use bytes for the priority because they take up only 8 bits of memory
+ * per value compared to the 32 bits per value of an enum (Same as an integer).
+ *
+ * @author DarkMagician6
+ * @since August 3, 2013
+ */
+public final class Priority {
+
+    public static final byte
+            /**
+             * Highest priority, called first.
+             */
+            HIGHEST = 0,
+    /**
+     * High priority, called after the highest priority.
+     */
+    HIGH = 1,
+    /**
+     * Medium priority, called after the high priority.
+     */
+    MEDIUM = 2,
+    /**
+     * Low priority, called after the medium priority.
+     */
+    LOW = 3,
+    /**
+     * Lowest priority, called after all the other priorities.
+     */
+    LOWEST = 4;
+
+    /**
+     * Array containing all the prioriy values.
+     */
+    public static final byte[] VALUE_ARRAY;
+
+    /**
+     * Sets up the VALUE_ARRAY the first time anything in this class is called.
+     */
+    static {
+        VALUE_ARRAY = new byte[]{
+                HIGHEST,
+                HIGH,
+                MEDIUM,
+                LOW,
+                LOWEST
+        };
+    }
+
+}

src/main/java/dev/resent/annotation/RenderMod.java

@@ -14,5 +14,5 @@ public @interface RenderMod {
     Category category();
     int x();
     int y();
-    boolean hasSetting();
+    boolean hasSetting() default false;
 }

src/main/java/dev/resent/module/base/Mod.java

@@ -30,7 +30,7 @@ public class Mod {
             this.name = modInfo.name();
             this.category = modInfo.category();
             this.hasSetting = modInfo.hasSetting();
-        }
+                }
     }
 
     public Mod(String name, Category cat) {

src/main/java/dev/resent/module/base/RenderModule.java

@@ -1,6 +1,7 @@
 package dev.resent.module.base;
 
 import dev.resent.annotation.RenderMod;
+import dev.resent.util.render.RenderUtils;
 import net.lax1dude.eaglercraft.v1_8.Mouse;
 import net.minecraft.client.gui.Gui;
 import net.minecraft.client.gui.GuiScreen;
@@ -70,21 +71,15 @@ public class RenderModule extends Mod {
         boolean hovered = mouseX >= getX() && mouseY >= getY() && mouseX < getX() + getWidth() && mouseY < getY() + this.getHeight();
 
         Gui.drawRect(this.x, this.y, this.x + this.getWidth(), this.y + this.getHeight(), hovered ? 0x50FFFFFF : 0x40FFFFFF);
-        Gui.drawRect(this.x, this.y, this.x + this.getWidth(), this.y + 1, -1);
-        Gui.drawRect(this.x, this.y, this.x + 1, this.y + getHeight(), -1);
-        Gui.drawRect(this.x + this.getWidth() - 1, this.y, this.x + getWidth(), this.y + this.getHeight(), -1);
-        Gui.drawRect(this.x, this.y + this.getHeight() - 1, this.x + getWidth(), this.y + this.getHeight(), -1);
+        RenderUtils.drawRectOutline(this.x, this.y, this.x+this.getWidth(), this.y+this.getHeight(), -1);
 
         boolean mouseOverX = (mouseX >= this.getX() && mouseX <= this.getX() + this.getWidth());
         boolean mouseOverY = (mouseY >= this.getY() && mouseY <= this.getY() + this.getHeight());
-        if (mouseOverX && mouseOverY) {
-            if (Mouse.isButtonDown(0)) {
-                if (!this.dragging) {
-                    this.lastX = x - mouseX;
-                    this.lastY = y - mouseY;
-                    this.dragging = true;
-                }
-            }
+
+        if (mouseOverX && mouseOverY && Mouse.isButtonDown(0) && !this.dragging) {
+            this.lastX = x - mouseX;
+            this.lastY = y - mouseY;
+            this.dragging = true;
         }
         
     }

src/main/java/dev/resent/module/impl/hud/ArmorHud.java

@@ -1,5 +1,6 @@
 package dev.resent.module.impl.hud;
 
+import dev.resent.annotation.RenderMod;
 import dev.resent.module.base.Category;
 import dev.resent.module.base.RenderModule;
 import dev.resent.module.setting.BooleanSetting;
@@ -8,14 +9,12 @@ import net.minecraft.client.gui.GuiIngame;
 import net.minecraft.client.gui.ScaledResolution;
 import net.minecraft.item.ItemStack;
 
+@RenderMod(name = "ArmorHud", category = Category.HUD, x = 15, y = 4, hasSetting = true)
 public class ArmorHud extends RenderModule {
 
     public ScaledResolution sr;
 
-    public ArmorHud() {
-        super("ArmorHud", Category.HUD, 4, 4, true);
-        addSetting(helm, chestp, leg, boot, item);
-    }
+    public ArmorHud() { addSetting(helm, chestp, leg, boot, item); }
 
     public static BooleanSetting helm = new BooleanSetting("Helmet", "", true);
     public static BooleanSetting chestp = new BooleanSetting("Chestplate", "", true);
@@ -23,13 +22,8 @@ public class ArmorHud extends RenderModule {
     public static BooleanSetting boot = new BooleanSetting("Boots", "", true);
     public static BooleanSetting item = new BooleanSetting("Item", "", true);
 
-    public int getWidth() {
-        return 20;
-    }
-
-    public int getHeight() {
-        return 96;
-    }
+    public int getWidth() { return 20; }
+    public int getHeight() { return 96; }
 
     @Override
     public void draw() {