1 files changed, 90 insertions, 0 deletions
diff --git a/game/scenary/illuminator.cpp b/game/scenary/illuminator.cpp
new file mode 100644
index 0000000..e3810ec
--- /dev/null
+++ b/game/scenary/illuminator.cpp
@@ -0,0 +1,90 @@
+#include "illuminator.h"
+#include "gfx/gl/sceneShader.h"
+#include "gfx/gl/vertexArrayObject.h"
+#include "gfx/models/texture.h" // IWYU pragma: keep
+
+bool
+Illuminator::SpotLight::persist(Persistence::PersistenceStore & store)
+{
+	return STORE_TYPE && STORE_MEMBER(position) && STORE_MEMBER(direction) && STORE_MEMBER(colour) && STORE_MEMBER(kq)
+			&& STORE_MEMBER(arc);
+}
+
+bool
+Illuminator::PointLight::persist(Persistence::PersistenceStore & store)
+{
+	return STORE_TYPE && STORE_MEMBER(position) && STORE_MEMBER(colour) && STORE_MEMBER(kq);
+}
+
+bool
+Illuminator::persist(Persistence::PersistenceStore & store)
+{
+	return STORE_TYPE && STORE_HELPER(bodyMesh, Asset::MeshConstruct)
+			&& STORE_HELPER(pointLight, Persistence::Appender<decltype(pointLight)>)
+			&& STORE_HELPER(spotLight, Persistence::Appender<decltype(spotLight)>) && Asset::persist(store);
+}
+
+void
+Illuminator::postLoad()
+{
+	if (spotLight.empty() && pointLight.empty()) {
+		throw std::logic_error {"Illuminator has no lights"};
+	}
+	texture = getTexture();
+	bodyMesh->configureVAO(instanceVAO)
+			.addAttribs<LocationVertex, &LocationVertex::first, &LocationVertex::second>(instances.bufferName(), 1);
+	if (!spotLight.empty()) {
+		instancesSpotLightVAO.emplace();
+		VertexArrayObject {*instancesSpotLightVAO}
+				.addAttribs<SpotLightVertex, &SpotLightVertex::position, &SpotLightVertex::direction,
+						&SpotLightVertex::colour, &SpotLightVertex::kq, &SpotLightVertex::arc>(
+						instancesSpotLight.bufferName(), 0)
+				.addAttribs<LocationVertex, &LocationVertex::first, &LocationVertex::second>(instances.bufferName(), 1);
+		std::transform(
+				spotLight.begin(), spotLight.end(), std::back_inserter(spotLightInstances), [this](const auto & s) {
+					return instancesSpotLight.acquire(*s);
+				});
+	}
+	if (!pointLight.empty()) {
+		instancesPointLightVAO.emplace();
+		VertexArrayObject {*instancesPointLightVAO}
+				.addAttribs<PointLightVertex, &PointLightVertex::position, &PointLightVertex::colour,
+						&PointLightVertex::kq>(instancesPointLight.bufferName(), 0)
+				.addAttribs<LocationVertex, &LocationVertex::first, &LocationVertex::second>(instances.bufferName(), 1);
+		std::transform(
+				pointLight.begin(), pointLight.end(), std::back_inserter(pointLightInstances), [this](const auto & s) {
+					return instancesPointLight.acquire(*s);
+				});
+	}
+}
+
+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 & shader) const
+{
+	if (const auto count = instances.size()) {
+		if (const auto scount = instancesSpotLight.size()) {
+			shader.spotLightInst.use();
+			glBindVertexArray(*instancesSpotLightVAO);
+			glDrawArraysInstanced(GL_POINTS, 0, static_cast<GLsizei>(scount), static_cast<GLsizei>(count));
+		}
+		if (const auto pcount = instancesPointLight.size()) {
+			shader.pointLightInst.use();
+			glBindVertexArray(*instancesPointLightVAO);
+			glDrawArraysInstanced(GL_POINTS, 0, static_cast<GLsizei>(pcount), static_cast<GLsizei>(count));
+		}
+
+		glBindVertexArray(0);
+	}
+}