From bb693756b9aace889f806a768b54655023d163ab Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Tue, 9 Jan 2024 20:17:55 +0000
Subject: Add the Illuminator (type) and Light (instance) classes

---
 game/scenary/illuminator.cpp | 40 ++++++++++++++++++++++++++++++++++++++++
 game/scenary/illuminator.h   | 26 ++++++++++++++++++++++++++
 game/scenary/light.cpp       |  7 +++++++
 game/scenary/light.h         | 19 +++++++++++++++++++
 4 files changed, 92 insertions(+)
 create mode 100644 game/scenary/illuminator.cpp
 create mode 100644 game/scenary/illuminator.h
 create mode 100644 game/scenary/light.cpp
 create mode 100644 game/scenary/light.h

(limited to 'game')

diff --git a/game/scenary/illuminator.cpp b/game/scenary/illuminator.cpp
new file mode 100644
index 0000000..4989933
--- /dev/null
+++ b/game/scenary/illuminator.cpp
@@ -0,0 +1,40 @@
+#include "illuminator.h"
+#include "gfx/gl/sceneShader.h"
+#include "gfx/gl/vertexArrayObject.h"
+#include "gfx/models/texture.h"
+#include "location.h"
+
+bool
+Illuminator::persist(Persistence::PersistenceStore & store)
+{
+	return STORE_TYPE && STORE_HELPER(bodyMesh, Asset::MeshConstruct) && Asset::persist(store);
+}
+
+void
+Illuminator::postLoad()
+{
+	texture = getTexture();
+	bodyMesh->configureVAO(instanceVAO)
+			.addAttribs<LocationVertex, &LocationVertex::first, &LocationVertex::second>(instances.bufferName(), 1);
+}
+
+void
+Illuminator::render(const SceneShader & shader) const
+{
+	if (const auto count = instances.size()) {
+		shader.basicInst.use();
+		if (texture) {
+			texture->bind();
+		}
+		bodyMesh->DrawInstanced(instanceVAO, static_cast<GLsizei>(count));
+	}
+}
+
+void
+Illuminator::lights(const SceneShader &) const
+{
+	if (const auto count = instances.size()) {
+		// shader.pointLight.use();
+		// bodyMesh->DrawInstanced(instanceVAO, static_cast<GLsizei>(count));
+	}
+}
diff --git a/game/scenary/illuminator.h b/game/scenary/illuminator.h
new file mode 100644
index 0000000..db9acfb
--- /dev/null
+++ b/game/scenary/illuminator.h
@@ -0,0 +1,26 @@
+#pragma once
+
+#include "assetFactory/asset.h"
+#include "gfx/gl/instanceVertices.h"
+#include "gfx/renderable.h"
+
+class SceneShader;
+class Location;
+class Texture;
+
+class Illuminator : public Asset, public Renderable, public StdTypeDefs<Illuminator> {
+	Mesh::Ptr bodyMesh;
+	std::shared_ptr<Texture> texture;
+	glVertexArray instanceVAO;
+
+public:
+	using LocationVertex = std::pair<glm::mat4, GlobalPosition3D>;
+	mutable InstanceVertices<LocationVertex> instances;
+	void render(const SceneShader &) const override;
+	void lights(const SceneShader &) const override;
+
+protected:
+	friend Persistence::SelectionPtrBase<std::shared_ptr<Illuminator>>;
+	bool persist(Persistence::PersistenceStore & store) override;
+	void postLoad() override;
+};
diff --git a/game/scenary/light.cpp b/game/scenary/light.cpp
new file mode 100644
index 0000000..6207497
--- /dev/null
+++ b/game/scenary/light.cpp
@@ -0,0 +1,7 @@
+#include "light.h"
+#include "location.h"
+
+Light::Light(std::shared_ptr<const Illuminator> type, const Location & position) :
+	type {std::move(type)}, location {this->type->instances.acquire(position.getRotationTransform(), position.pos)}
+{
+}
diff --git a/game/scenary/light.h b/game/scenary/light.h
new file mode 100644
index 0000000..0b19535
--- /dev/null
+++ b/game/scenary/light.h
@@ -0,0 +1,19 @@
+#pragma once
+
+#include "game/worldobject.h"
+#include "illuminator.h"
+
+class Location;
+
+class Light : public WorldObject {
+	std::shared_ptr<const Illuminator> type;
+	InstanceVertices<Illuminator::LocationVertex>::InstanceProxy location;
+
+	void
+	tick(TickDuration) override
+	{
+	}
+
+public:
+	Light(std::shared_ptr<const Illuminator> type, const Location & position);
+};
-- 
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