merge masterloek/replay

3 files changed, 51 insertions, 0 deletions

diff --git a/src/crepe/util/AbsolutePosition.cpp b/src/crepe/util/AbsolutePosition.cpp
new file mode 100644
index 0000000..29ade23
--- /dev/null
+++ b/src/crepe/util/AbsolutePosition.cpp
@@ -0,0 +1,20 @@
+#include "AbsolutePosition.h"
+
+using namespace crepe;
+
+vec2 AbsolutePosition::get_position(const Transform & transform, const vec2 & offset) {
+	// Get the rotation in radians
+	float radians1 = transform.rotation * (M_PI / 180.0);
+
+	// Calculate total offset with scale
+	vec2 total_offset = offset * transform.scale;
+
+	// Rotate
+	float rotated_total_offset_x1
+		= total_offset.x * cos(radians1) - total_offset.y * sin(radians1);
+	float rotated_total_offset_y1
+		= total_offset.x * sin(radians1) + total_offset.y * cos(radians1);
+
+	// Final positions considering scaling and rotation
+	return (transform.position + vec2(rotated_total_offset_x1, rotated_total_offset_y1));
+}
diff --git a/src/crepe/util/AbsolutePosition.h b/src/crepe/util/AbsolutePosition.h
new file mode 100644
index 0000000..857c1ac
--- /dev/null
+++ b/src/crepe/util/AbsolutePosition.h
@@ -0,0 +1,29 @@
+#pragma once
+
+#include "api/Transform.h"
+
+#include "types.h"
+
+namespace crepe {
+
+/**
+ * \brief A class for calculating the absolute position of an object.
+ *
+ * This class provides a utility function to get the position of an object in the world space,
+ * taking into account the transform and any additional offset.
+ */
+class AbsolutePosition {
+public:
+	/**
+	 * \brief Get the absolute position of an object.
+	 *
+	 * This function calculates the absolute position by combining the transform position with an optional offset.
+	 *
+	 * \param transform The transform of the object, which contains its position, rotation, and scale.
+	 * \param offset The offset to apply to the object's position (in local space).
+	 * \return The absolute position of the object as a 2D vector.
+	 */
+	static vec2 get_position(const Transform & transform, const vec2 & offset);
+};
+
+} // namespace crepe
diff --git a/src/crepe/util/CMakeLists.txt b/src/crepe/util/CMakeLists.txt
index 94ed906..33160a7 100644
--- a/src/crepe/util/CMakeLists.txt
+++ b/src/crepe/util/CMakeLists.txt
@@ -1,6 +1,7 @@
 target_sources(crepe PUBLIC
 	LogColor.cpp
 	Log.cpp
+	AbsolutePosition.cpp
 )
 
 target_sources(crepe PUBLIC FILE_SET HEADERS FILES
@@ -11,5 +12,6 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
 	Proxy.hpp
 	OptionalRef.h
 	OptionalRef.hpp
+	AbsolutePosition.h
 )