Basic element system & added some helper functions to `RenderUtil`

src/main/java/net/silentclient/client/gui/util/RenderUtil.java

@@ -18,9 +18,13 @@ import org.lwjgl.opengl.GL11;
 import static org.lwjgl.opengl.GL11.*;
 
 public class RenderUtil {
-	final static Minecraft mc = Minecraft.getMinecraft();
+    final static Minecraft mc = Minecraft.getMinecraft();
     final static FontRenderer fr = mc.fontRendererObj;
 
+    public static void drawRoundXYWH(float x, float y, float width, float height, float r, int col) {
+        drawRoundedRect(x, y, x + width, y + height, r, col);
+    }
+
     public static void drawRoundedRect(float x, float y, float x1, float y1, float radius, int color) {
         x1 = x + x1;
         y1 = y + y1;
@@ -65,7 +69,12 @@ public class RenderUtil {
         glPopAttrib();
         glLineWidth(1);
         GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
-      }
+    }
+
+    public static void drawRoundOutlineXYWH(float x, float y, float w, float h, float r, float lw, int col) {
+        drawRoundedOutline(x, y, x + w, y + h, r, lw, col);
+    }
+
     public static void drawRoundedOutline(float x, float y, float x1, float y1, float radius,float lineWidth, int color) {
         x1 = x + x1;
         y1 = y + y1;

src/main/java/net/silentclient/client/ui/framework/UIElement.java

@@ -0,0 +1,25 @@
+package net.silentclient.client.ui.framework;
+
+import net.minecraft.client.gui.Gui;
+
+/**
+ * @author refactoring
+ */
+public abstract class UIElement extends Gui {
+    public float x, y, w, h;
+
+    public UIElement(float x, float y, float w, float h) {
+        this.x = x;
+        this.y = y;
+        this.w = w;
+        this.h = h;
+    }
+
+    public boolean isMouseInside(float mx, float my) {
+        return mx >= this.x && my >= this.y && mx < this.x + this.w && my < this.y + this.h;
+    }
+
+    public void render(float mouseX, float mouseY) {}
+    public void click(float mouseX, float mouseY, int button) {}
+    public void released(float mouseX, float mouseY, int button) {}
+}

src/main/java/net/silentclient/client/ui/framework/UIScreen.java

@@ -0,0 +1,10 @@
+package net.silentclient.client.ui.framework;
+
+import net.minecraft.client.gui.GuiScreen;
+
+/**
+ * Solely exists for the purpose of making everything custom ;)
+ *
+ * @author refactoring
+ */
+public class UIScreen extends GuiScreen { }

src/main/java/net/silentclient/client/ui/screen/ScreenModMenu.java

@@ -0,0 +1,13 @@
+package net.silentclient.client.ui.screen;
+
+import net.silentclient.client.ui.framework.UIScreen;
+
+/**
+ * @author refactoring
+ */
+public class ScreenModMenu extends UIScreen {
+    @Override
+    public void drawScreen(int mx, int my, float btn) {
+
+    }
+}

src/main/java/net/silentclient/client/ui/screen/component/ElementIconButton.java

@@ -0,0 +1,40 @@
+package net.silentclient.client.ui.screen.component;
+
+import net.silentclient.client.Client;
+import net.silentclient.client.gui.animation.SimpleAnimation;
+import net.silentclient.client.gui.font.SilentFontRenderer;
+import net.silentclient.client.gui.util.RenderUtil;
+import net.silentclient.client.ui.framework.UIElement;
+
+import java.awt.*;
+
+/**
+ * @author refactoring
+ */
+public class ElementIconButton extends UIElement {
+    private final Runnable clickHandler;
+    private final String icon;
+    private final SimpleAnimation anim = new SimpleAnimation(0f);
+
+    public ElementIconButton(String icon, float x, float y, float w, float h, Runnable handler) {
+        super(x, y, w, h);
+        this.icon = icon;
+        this.clickHandler = handler;
+    }
+
+    @Override
+    public void render(float mouseX, float mouseY) {
+        RenderUtil.drawRoundXYWH(x, y, w, h, 7f, new Color(0, 0, 0, 125).getRGB());
+        RenderUtil.drawRoundOutlineXYWH(x, y, w, h, 7f, 1f, new Color(255, 255, 255, 125).getRGB());
+        RenderUtil.drawRoundXYWH(x, y, w, h, 7f, new Color(255, 255, 255, (int)anim.getValue()).getRGB());
+
+        Client.getInstance().getSilentFontRenderer().drawCenteredString(icon, (int) (x + w / 2), (int) (y + h / 2), 25, SilentFontRenderer.FontType.TEXT, 25);
+    }
+
+    @Override
+    public void click(float mouseX, float mouseY, int button) {
+        if(isMouseInside(mouseX, mouseY) && button == 0) {
+            clickHandler.run();
+        }
+    }
+}