drawRectangle

3 files changed, 29 insertions, 1 deletions

diff --git a/demo.cpp b/demo.cpp
index 5ed0da6..0d6f15b 100644
--- a/demo.cpp
+++ b/demo.cpp
@@ -6,8 +6,10 @@ main_loop(FLD& fld, [[maybe_unused]] void *udata)
 	if (fld.drawBegin())
 		return 1;
 
-	fld.drawSetColor(fld.tick%3 == 0, fld.tick%3 == 1, fld.tick%3 == 2);
+	fld.drawSetColor(0, 0, 0);
 	fld.drawClear();
+	fld.drawSetColor(1, 1, 1);
+	fld.drawRectangle({ 16, 32, 64, 32 });
 
 	if (fld.drawEnd())
 		return 1;
diff --git a/src/FLD.hpp b/src/FLD.hpp
index 3c4fb01..e08d9e6 100644
--- a/src/FLD.hpp
+++ b/src/FLD.hpp
@@ -23,6 +23,14 @@ public:
 		float b = -1.0f;
 		float a = -1.0f;
 	};
+	struct Rectangle {
+		int x;
+		int y;
+		int w;
+		int h;
+		bool center = false;
+		bool fill = false;
+	};
 
 	const Config config;
 	READONLY(SDL_Window *, window, nullptr);
@@ -43,6 +51,8 @@ public:
 	Error drawSetColor(float r, float g, float b, float a=-1);
 	Error drawSetColor(const Color& c);
 	Error drawClear() const;
+
+	Error drawRectangle(const Rectangle& rect) const;
 private:
 	bool shouldQuit = false;
 	struct {
diff --git a/src/drawRectangle.cpp b/src/drawRectangle.cpp
new file mode 100644
index 0000000..fb21be9
--- /dev/null
+++ b/src/drawRectangle.cpp
@@ -0,0 +1,16 @@
+#include "FLD.hpp"
+
+FLD::Error
+FLD::drawRectangle(const Rectangle &rect) const
+{
+	const SDL_Rect srect {
+		.x = rect.x - rect.center * (rect.w / 2),
+		.y = rect.y - rect.center * (rect.h / 2),
+		.w = rect.w,
+		.h = rect.h
+	};
+	const auto fun = rect.fill ? SDL_RenderFillRect : SDL_RenderDrawRect;
+	if (fun(_renderer, &srect) < 0)
+		return sdlError();
+	return 0;
+}