Add tests

Author: maxproske

.github/workflows/codecov.yml

@@ -0,0 +1,30 @@
+name: Run tests and upload coverage to Codecov
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    name: Run tests and collect coverage
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.24'
+
+      - name: Install dependencies
+        run: go mod download
+
+      - name: Run tests
+        run: go test -coverprofile=coverage.txt ./...
+
+      - name: Upload results to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          slug: maxproske/lyns-rhythm-dungeon # Only needed if repo name != GitHub context

.gitignore

@@ -1 +1,4 @@
 *.exe
+lynsrd
+coverage.out
+coverage.html

.vscode/settings.json

@@ -1,3 +1,2 @@
 {
-    "go.inferGopath": true // For Ubuntu
 }

Makefile

@@ -0,0 +1,12 @@
+.PHONY: deps build run
+
+deps:
+	brew list sdl2{,_mixer,_image,_ttf} || brew install sdl2{,_mixer,_image,_ttf}
+	go mod tidy
+
+# -w -s reduces binary size by ~1.3MB
+build:
+	go build -ldflags "-w -s" -o lynsrd
+
+run:
+	go run main.go

README.md

@@ -1,6 +1,6 @@
 # Lyn's Rhythm Dungeon
 
-What's in a name?
+[![codecov](https://codecov.io/gh/maxproske/lyns-rythm-dungeon/branch/master/graph/badge.svg)](https://codecov.io/gh/maxproske/lyns-rythm-dungeon)
 
 ## Why Go?
 
@@ -9,17 +9,10 @@ What's in a name?
 - Garbage collection is very low latency, compared to Java or C# which focus on throughput.
 - First-class support for concurrency, memory allocation, and unit testing.
 
-## Getting Started (MacOS)
+## Getting Started (macOS)
 
 ```sh
-# Install Go
-brew install go
-
-# Install SDL2
-brew install sdl2{,_image,_mixer,_ttf,_gfx} pkg-config
-go get -v github.com/veandco/go-sdl2/{sdl,img,mix,ttf}
-
-# Build
-go build -o lynsrd
-./lynsrd
-```
+make deps
+make build
+make run
+```