feat: add basic canvas / improve inspector

lightkeeper/src/components/Checkpoint.cpp

@@ -0,0 +1,51 @@
+#include <components/Checkpoint.h>
+
+#include <destrum/ObjectModel/GameObject.h>
+#include <destrum/Serialization/GlmJson.h>
+
+#include <components/PlayerRespawn.h>
+
+#include <imgui.h>
+#include <glm/gtc/type_ptr.hpp>
+#include <spdlog/spdlog.h>
+
+Checkpoint::Checkpoint(GameObject& parent)
+    : Component(parent, "Checkpoint")
+{
+}
+
+glm::vec3 Checkpoint::GetSpawnPoint() const
+{
+    return GetTransform().GetWorldPosition() + m_SpawnOffset;
+}
+
+void Checkpoint::OnTriggerEnter(GameObject* other)
+{
+    if (other == nullptr) {
+        return;
+    }
+
+    auto* respawn = other->GetComponent<PlayerRespawn>();
+    const glm::vec3 spawnPoint = GetSpawnPoint();
+    if (respawn == nullptr || respawn->GetRespawnPoint() == spawnPoint) {
+        return;
+    }
+
+    respawn->SetRespawnPoint(spawnPoint);
+    spdlog::info("{} reached checkpoint {}", other->GetName(), GetGameObject()->GetName());
+}
+
+nlohmann::json Checkpoint::Serialize() const
+{
+    return {{"spawnOffset", m_SpawnOffset}};
+}
+
+void Checkpoint::Deserialize(const nlohmann::json& data)
+{
+    m_SpawnOffset = data.value("spawnOffset", m_SpawnOffset);
+}
+
+void Checkpoint::ImGuiInspector()
+{
+    ImGui::DragFloat3("Spawn offset", glm::value_ptr(m_SpawnOffset), 0.05f);
+}