add key_action

Lektion 2/Key_action/arrow_key_move/arrow_key_move.pde

@@ -0,0 +1,26 @@
+int x = 0;//Position x
+int y = 0;//Positon y
+
+void setup () {
+  size(300, 300);
+  //Startposition Mitte
+  x = width /2;
+  y = height /2;
+}
+
+void draw () {
+  background(255);
+  ellipse(x, y, 40, 40);
+}
+
+void keyPressed() {
+  if (keyCode == RIGHT) {
+    x +=10; // Kreis nach rechts
+  } else if (keyCode == LEFT) {
+    x -= 10; // Kreis nach links
+  } else if (keyCode == DOWN) {
+    y +=10; // Kreis nach unten
+  } else if (keyCode == UP) {
+    y -= 10; // Kreis nach oben
+  }
+}

Lektion 2/Key_action/black_white_1/black_white_1.pde

@@ -0,0 +1,15 @@
+int bg = 200;//bg = background
+
+void draw() {
+  background(bg);
+  rectMode(CENTER);
+  rect(50, 50, 40, 40);
+}
+
+void keyPressed() {
+  bg = 0;
+}
+
+void mousePressed() {
+  bg = 255;
+}

Lektion 2/Key_action/black_white_2/black_white_2.pde

@@ -0,0 +1,21 @@
+boolean bg_is_white = true;
+
+void draw() {
+  if(bg_is_white) {
+    background(255);
+    fill(0);
+  } else {
+    background(0);
+    fill(255);
+  }
+  ellipseMode(CENTER);
+  ellipse(50, 50, 50, 50);
+}
+
+void keyPressed() {
+  bg_is_white = false;
+}
+
+void mousePressed() {
+  bg_is_white = true;
+}