From cf2abfcfe34a9b3e4cf5af193d1f320374416267 Mon Sep 17 00:00:00 2001
From: quou <quou@disroot.org>
Date: Sat, 18 Jan 2025 16:19:41 +1100
Subject: convert models and editor to use ecs

---
 c2.cpp | 49 ++++++++++++++++++++++++++++++++++---------------
 1 file changed, 34 insertions(+), 15 deletions(-)

(limited to 'c2.cpp')

diff --git a/c2.cpp b/c2.cpp
index ff4196f..d686765 100644
--- a/c2.cpp
+++ b/c2.cpp
@@ -3,8 +3,10 @@
 #include "debugdraw.hpp"
 #include "editor.hpp"
 #include "model.hpp"
+#include "scene.hpp"
 #include "ui.hpp"
 #include "video.hpp"
+#include "world.hpp"
 extern "C" {
 #include "plat.h"
 #include "memory.h"
@@ -571,7 +573,7 @@ struct C2 : public App {
 	Texture* texture;
 	Texture* texture2;
 	Texture_Id default_texture;
-	Model_Instance* monkey, * monkey2;
+	Entity_Id monkey, monkey2;
 	Model_Scene scene;
 	Orbit_Cam camera;
 	Fullscreen_Quad quad;
@@ -580,6 +582,7 @@ struct C2 : public App {
 	Buffer_Id vbo, cbuf;
 	Sampler_Id clamped_linear;
 	Line_Renderer lr;
+	World* world;
 	UI* ui;
 	UI::Label* fps_label;
 	void* per_frame;
@@ -643,17 +646,27 @@ struct C2 : public App {
 		ui->layout(w, h);
 		fps_label = ui->create_element<UI::Label>(ui->root, "");
 		scene.init(&scene_arena, 32, clamped_linear);
-		monkey = scene.instantiate(
-			dev,
-			(Model*)assets.load("monkey.mdl")
-		);
-		monkey2 = scene.instantiate(
-			dev,
-			(Model*)assets.load("monkey.mdl")
-		);
 		sky.init(dev, &assets);
 		eprobe.init(dev, &assets, 256);
 		camera.init();
+		world = (World*)arena_alloc(arena, sizeof *world);
+		world->init(arena);
+		{
+			monkey = world->create_entity();
+			auto [_, mod] = world->add<Transform, C_Model>(monkey);
+			mod.i = scene.instantiate(
+				dev,
+				(Model*)assets.load("monkey.mdl")
+			);
+		}
+		{
+			monkey2 = world->create_entity();
+			auto [_, mod] = world->add<Transform, C_Model>(monkey2);
+			mod.i = scene.instantiate(
+				dev,
+				(Model*)assets.load("monkey.mdl")
+			);
+		}
 	}
 
 	void on_update() override {
@@ -738,7 +751,7 @@ struct C2 : public App {
 		ctx.debug_pop();
 
 		Texture& bb = dev->get_texture(dev->get_backbuffer());
-		monkey->transform = m4f::translate(
+		world->get<Transform>(monkey).mat = m4f::translate(
 			m4f::identity(),
 			v3f(0.0f, 0.0f, 0.0f)
 		) * m4f::rotate(
@@ -746,7 +759,7 @@ struct C2 : public App {
 			rot,
 			raxis
 		);
-		monkey2->transform = m4f::translate(
+		world->get<Transform>(monkey2).mat = m4f::translate(
 			m4f::identity(),
 			v3f(2.0f, 0.0f, 2.0f)
 		) * m4f::rotate(
@@ -757,7 +770,7 @@ struct C2 : public App {
 		camera.asp = (float)bb.w / (float)bb.h;
 		camera.update_orbit(*this);
 		camera.update();
-		scene.update(camera, dev);
+		update_scene(scene, dev, camera, *world);
 		ctx.debug_push("scene");
 		ctx.debug_push("depth prepass");
 		scene.render(dev, &frame_arena, depth_prepass, 0, clamped_linear);
@@ -783,8 +796,15 @@ struct C2 : public App {
 		ctx.debug_pop();
 
 		if (mjp(mbtn_left)) {
-			auto [a, b] = scene.pick(camera, w, h, mx, my);
-			editor_on_select(a, b);
+			auto [a, b] = scene_pick(
+				*world,
+				camera,
+				w,
+				h,
+				mx,
+				my
+			);
+			editor_on_select(*world, a, b);
 		}
 
 		lr.colour(v3f(1.0f, 0.0f, 0.0f));
@@ -830,7 +850,6 @@ struct C2 : public App {
 	}
 };
 
-
 extern "C" App* entrypoint(Arena* mem) {
 	C2* a = (C2*)arena_alloc(mem, sizeof *a);
 	new(a) C2();
-- 
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