Camera

src/dusksdl2/display/camera/CMakeLists.txt

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+# Copyright (c) 2025 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+# Sources
+target_sources(${DUSK_TARGET_NAME}
+  PRIVATE
+    camera.c
+)

src/dusksdl2/display/camera/camera.c

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "camera.h"
+#include "display/render.h"
+
+void cameraUIPush(void) {
+  // Push the UI camera matrix onto the stack.
+  glPushMatrix();
+  glLoadIdentity();
+  glOrtho(
+    0.0f, (float_t)RENDER_WIDTH,
+    (float_t)RENDER_HEIGHT, 0.0f,
+    -1.0f, 1.0f
+  );
+}
+
+void cameraUIPop(void) {
+  // Pop the UI camera matrix from the stack.
+  glPopMatrix();
+}

src/dusksdl2/display/camera/camera.h

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusksdl2.h"
+
+/**
+ * Pushes the UI camera matrix onto the stack.
+ */
+void cameraUIPush(void);
+
+/**
+ * Pops the UI camera matrix from the stack.
+ */
+void cameraUIPop(void);