added Kollisionserkennung

Lektion 2/Kollisionserkennung/3_UeberlappendeButtons/UeberlappendeButtons.pde

@@ -0,0 +1,35 @@
+int x1 = 200;
+int y1 = 100;
+int x2 = 100;
+int y2 = 200;
+int size = 200;
+
+void setup() {
+    size(800, 600);
+}
+
+void draw() {
+    // setze hintergrund
+    background(255);
+    noFill();
+    
+    // setze rechtecke
+    rect(x1, y1, size, size);
+    rect(x2, y2, size, size);
+    
+    // pruefung ob mauszeiger in rechteck ist
+    boolean isInRect1 = mouseX >= x1 && mouseY >= y1 && mouseX <= x1 + size && mouseY <= y1 + size;
+    boolean isInRect2 = mouseX >= x2 && mouseY >= y2 && mouseX <= x2 + size && mouseY <= y2 + size;
+    
+   if (isInRect1 && isInRect2) { // mauszeiger in schnittmenge
+      fill(0, 0, 255);
+   } else if (isInRect1) { // mauszeiger in rechteck 1
+      fill(255, 0, 0);
+   } else if (isInRect2) { // mauszeiger in rechteck 2
+      fill(0, 255, 0);
+   } else {
+      noFill(); // mauszeiger außerhalb der rechtecke
+   }
+    
+    ellipse(mouseX, mouseY, 20, 20);
+}

Lektion 2/Kollisionserkennung/3_UeberlappendeButtons/out/source/UeberlappendeButtons.java

@@ -0,0 +1,65 @@
+/* autogenerated by Processing revision 1293 on 2023-09-27 */
+import processing.core.*;
+import processing.data.*;
+import processing.event.*;
+import processing.opengl.*;
+
+import java.util.HashMap;
+import java.util.ArrayList;
+import java.io.File;
+import java.io.BufferedReader;
+import java.io.PrintWriter;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.IOException;
+
+public class UeberlappendeButtons extends PApplet {
+
+int x1 = 200;
+int y1 = 100;
+int x2 = 100;
+int y2 = 200;
+int size = 200;
+
+public void setup() {
+    /* size commented out by preprocessor */;
+}
+
+public void draw() {
+    // setze hintergrund
+    background(255);
+    noFill();
+    
+    // setze rechtecke
+    rect(x1, y1, size, size);
+    rect(x2, y2, size, size);
+    
+    // pruefung ob mauszeiger in rechteck ist
+    boolean isInRect1 = mouseX >= x1 && mouseY >= y1 && mouseX <= x1 + size && mouseY <= y1 + size;
+    boolean isInRect2 = mouseX >= x2 && mouseY >= y2 && mouseX <= x2 + size && mouseY <= y2 + size;
+    
+   if (isInRect1 && isInRect2) { // mauszeiger in schnittmenge
+      fill(0, 0, 255);
+   } else if (isInRect1) { // mauszeiger in rechteck 1
+      fill(255, 0, 0);
+   } else if (isInRect2) { // mauszeiger in rechteck 2
+      fill(0, 255, 0);
+   } else {
+      noFill(); // mauszeiger außerhalb der rechtecke
+   }
+    
+    ellipse(mouseX, mouseY, 20, 20);
+}
+
+
+  public void settings() { size(800, 600); }
+
+  static public void main(String[] passedArgs) {
+    String[] appletArgs = new String[] { "UeberlappendeButtons" };
+    if (passedArgs != null) {
+      PApplet.main(concat(appletArgs, passedArgs));
+    } else {
+      PApplet.main(appletArgs);
+    }
+  }
+}