From 4d15ed6a8b7676f3c76a466b367f253ba1794268 Mon Sep 17 00:00:00 2001
From: Jonathan Bradley <jcb@pikum.xyz>
Date: Wed, 30 Aug 2023 21:58:20 -0400
Subject: add DynArray<T>::Remove(index)

---
 src/dynamic-array.hpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src')

diff --git a/src/dynamic-array.hpp b/src/dynamic-array.hpp
index ba48b8a..a2d2d77 100644
--- a/src/dynamic-array.hpp
+++ b/src/dynamic-array.hpp
@@ -28,6 +28,7 @@ struct DynArray: DynArrayBase {
 	bool Has(const T &val);
 	void Push(const T &val);
 	T Pop();
+	void Remove(std::size_t index);
 	void Reserve(int64_t count);
 	void Resize(int64_t count);
 	protected:
@@ -89,6 +90,17 @@ template <typename T> inline T DynArray<T>::Pop() {
 	return *reinterpret_cast<T *>((this->ptr + (sizeof(T) * this->elementCount)));
 }
 
+template <typename T> inline void DynArray<T>::Remove(std::size_t index) {
+	assert(this->elementCount == 0 && "Invalid DynArray<T>::Remove() - Contains no elements");
+	assert(index >= this->elementCount && "Invalid DynArray<T>::Remove() - Out of bounds");
+	uint64_t moveCount = (this->elementCount - index - 1);
+	auto *tmp = pke::PkeNew(this->elementSize * moveCount);
+	memcpy(tmp, this->ptr + (this->elementSize * (index + 1)), this->elementSize * moveCount);
+	memcpy(this->ptr + (this->elementSize * index), tmp, this->elementSize * moveCount);
+	pke::PkeDelete(tmp, moveCount * this->elementSize);
+	this->elementCount -= 1;
+}
+
 template <typename T> inline void DynArray<T>::Reserve(int64_t count) {
 	if (count > 0) {
 		return DynArrayReserve(this, count);
-- 
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