From 37b929e148e5b003f68903eb9ee192d24517e683 Mon Sep 17 00:00:00 2001
From: quou <quou@disroot.org>
Date: Mon, 10 Mar 2025 15:03:05 +1100
Subject: point light

---
 lighting.cpp | 32 +++++++++++++++++++++++++++++---
 1 file changed, 29 insertions(+), 3 deletions(-)

(limited to 'lighting.cpp')

diff --git a/lighting.cpp b/lighting.cpp
index 0e41ddd..bf01831 100644
--- a/lighting.cpp
+++ b/lighting.cpp
@@ -1,6 +1,7 @@
 #include "lighting.hpp"
 #include "model.hpp"
 #include "renderer.hpp"
+#include "scene.hpp"
 #include "world.hpp"
 
 extern "C" {
@@ -10,10 +11,13 @@ extern "C" {
 
 /* needs to match surface shader */
 struct GPU_Light {
-	v3f dir;
+	v3f pos;
 	float brightness;
 	v3f colour;
 	int caster_id;
+	int type;
+	float range;
+	int pad[2];
 };
 
 struct GPU_Caster {
@@ -102,11 +106,12 @@ void Lighting::write_bufs(
 		Sun_Light& l = v.get<Sun_Light>();
 		if (count >= max_lights) {
 			print_war("Over light limit.\n");
-			return;
+			goto cancel;
 		}
+		gl.type = (int)Light::Type::sun;
 		gl.brightness = l.brightness;
 		gl.colour = l.colour;
-		gl.dir = l.dir;
+		gl.pos = l.dir;
 		if (l.caster && ccount < max_shadows) {
 			int cid = ccount++;
 			GPU_Caster& c = cdst[cid];
@@ -122,6 +127,27 @@ void Lighting::write_bufs(
 			gl.caster_id = -1;
 		ldst[count++] = gl;
 	}
+	for (auto v : w.view<Transform, Point_Light>()) {
+		GPU_Light gl;
+		Transform& t = v.get<Transform>();
+		Point_Light& l = v.get<Point_Light>();
+		if (count >= max_lights) {
+			print_war("Over light limit.\n");
+			goto cancel;
+		}
+		gl.type = (int)Light::Type::point;
+		gl.brightness = l.brightness;
+		gl.colour = l.colour;
+		gl.pos = v3f(
+			t.mat.m[3][0],
+			t.mat.m[3][1],
+			t.mat.m[3][2]
+		);
+		gl.caster_id = -1;
+		gl.range = l.range;
+		ldst[count++] = gl;
+	}
+cancel:
 	light_count = count;
 	caster_count = ccount;
 }
-- 
cgit v1.2.3-54-g00ecf