ci: setup codecov coverage & badge

.github/workflows/coverage.yaml

@@ -9,6 +9,8 @@ env:
 jobs:
   coverage:
     runs-on: ubuntu-latest
+    env:
+      COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v5
@@ -52,5 +54,35 @@ jobs:
         uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-          files: ./lcov.info
-          disable_search: true
+          files: lcov.info
+
+      - name: Download Coveralls CLI
+        if: ${{ env.COVERALLS_REPO_TOKEN != '' }}
+        run: |
+          # use GitHub Releases URL instead of coveralls.io because they can't maintain their own files; it 404s
+          curl -L https://github.com/coverallsapp/coverage-reporter/releases/download/v0.6.15/coveralls-linux-x86_64.tar.gz | tar -xz -C /usr/local/bin
+
+      - name: Upload coverage to Coveralls
+        if: ${{ env.COVERALLS_REPO_TOKEN != '' }}
+        run: |
+          if [ ! -f "lcov.info" ]; then
+            echo "Error: lcov.info file not found. Coverage generation may have failed."
+            exit 1
+          fi
+
+          for i in {1..10}; do
+            echo "Attempt $i: Uploading coverage to Coveralls..."
+            if coveralls -n report lcov.info; then
+              echo "Successfully uploaded coverage report."
+              exit 0
+            fi
+
+            if [ $i -lt 10 ]; then
+              delay=$((2**i))
+              echo "Attempt $i failed. Retrying in $delay seconds..."
+              sleep $delay
+            fi
+          done
+
+          echo "Failed to upload coverage report after 10 attempts."
+          exit 1

codecov.yml

@@ -1,17 +0,0 @@
-coverage:
-  status:
-    project:
-      default:
-        target: 70%
-    patch:
-      default:
-        informational: true
-
-ignore:
-  - "src/(?:bin|platform))/.+\\.rs"
-  - "src/(?:app|events|formatter)\\.rs"
-
-comment:
-  layout: "reach,diff,flags,files,footer"
-  behavior: default
-  require_changes: false

src/systems/debug.rs

@@ -266,7 +266,7 @@ pub fn debug_render_system(
     }
 
     canvas.set_draw_color(Color {
-        a: f32_to_u8(0.65),
+        a: f32_to_u8(0.6),
         ..Color::RED
     });
     canvas.set_blend_mode(sdl2::render::BlendMode::Blend);