From 81d143a593219a07559f26d44f2b21d0d0f96698 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Constantin=20F=C3=BCrst?= <c@fuersten.info>
Date: Wed, 1 May 2024 15:24:53 +0200
Subject: [PATCH] implement lesson02

---
 LESSONS.md           | 23 ++++++++++++++++++++++-
 components/Snack.cpp |  8 ++++++++
 components/Snack.h   |  6 ++++++
 3 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 components/Snack.cpp
 create mode 100644 components/Snack.h

diff --git a/LESSONS.md b/LESSONS.md
index c62f358..f432ee4 100644
--- a/LESSONS.md
+++ b/LESSONS.md
@@ -19,4 +19,25 @@
 
 Once you're ready, you can _git merge lesson02_.
 
----
\ No newline at end of file
+---
+
+## Lesson 02
+
+#### Prequisites
+- Random Numbers
+- Functions
+- Pointers/References
+
+#### Files
+- _components/Snack.cpp_
+- _components/Snack.h_
+- _main.cpp_
+
+#### Task
+Every little snake needs to eat. And no snake will appear without food, which is why we begin by providing this essential item.
+
+1) We want to implement the _Snack_ as an instance of the Point-Class from the previous Task. Therefore we will write a function that turns an ordinary Point into a delicious Snack. This will be called _generateSnack_ and we will implement it in _components/Snack.*_ where you can see the skeleton for the function.
+2) A Snack must be placed at a random point when generating, so set its x and y value to a random value that fits on the playing field (see the comment in the function skeleton for a hint).
+3) A Snack must also look enticing, so set its image to the one defined as SNACK_CHAR and then display the delicious snack.
+4) Experiment and use __mainL02__ to test if your code works.
+5) Notice anything interesting with how we pass the Point to the generateSnack-function? The function requests a pointer which is the address of an object instance. To get the address of an existing object, we use operator&. Read up on pointers and references.
\ No newline at end of file
diff --git a/components/Snack.cpp b/components/Snack.cpp
new file mode 100644
index 0000000..d6b7ccf
--- /dev/null
+++ b/components/Snack.cpp
@@ -0,0 +1,8 @@
+#include "Snack.h"
+
+void generateSnack(Point* snack){
+    // TODO: implement me
+    // should set a random position for the point, update its character/image and display the point
+    // x should be between (0, GAME_RIGHT_WALL_X)
+    // y should be between (0, GAME_BOTTOM_WALL_Y)
+}
diff --git a/components/Snack.h b/components/Snack.h
new file mode 100644
index 0000000..c249720
--- /dev/null
+++ b/components/Snack.h
@@ -0,0 +1,6 @@
+#pragma once
+#include "Point.h"
+
+static constexpr int SNACK_CHAR = '*';
+
+void generateSnack(Point* snack);