From e9f32da98305cbf873ad93b93bb3b6af938d6656 Mon Sep 17 00:00:00 2001
From: opfez <opfez@disroot.org>
Date: Sun, 26 Sep 2021 19:54:27 +0200
Subject: [PATCH] add build script for nixos support

---
 Makefile |  1 -
 build.sh | 10 ++++++++++
 main.c   |  2 ++
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100755 build.sh

diff --git a/Makefile b/Makefile
index e69be41..956ac31 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,3 @@
-CC = clang
 CFLAGS = -Wall -Wextra -std=c99 -pedantic -O2
 LIBS = -lSDL2 -lm
 
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..ebe13be
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+source /etc/os-release
+
+# Don't know how to just have SDL2 available on NixOS
+if echo $ID | grep "nixos" 2>/dev/null >/dev/null; then
+    nix-shell -p SDL2 --run make
+else
+    make
+fi
diff --git a/main.c b/main.c
index b41044f..3c350c9 100644
--- a/main.c
+++ b/main.c
@@ -372,6 +372,8 @@ main(void)
         uint32_t buttons = SDL_GetMouseState(NULL, NULL);
         if (buttons & SDL_BUTTON(3))
             break;
+        else if (buttons & SDL_BUTTON(1))
+            screenshot(state.canvas);
 
         clear_canvas(state.canvas, BLACK);