From 20494a0fe10011601c7573e6a7fa53bd891b1bc0 Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Wed, 12 Apr 2023 21:31:37 -0500
Subject: wrap entityDb and systemDb into single Database class

---
 main.lua | 39 +++++++++++++++++++--------------------
 1 file changed, 19 insertions(+), 20 deletions(-)

(limited to 'main.lua')

diff --git a/main.lua b/main.lua
index 449696d..eda08f7 100644
--- a/main.lua
+++ b/main.lua
@@ -21,26 +21,25 @@ local vw, vh = 640, 480
 
 
 -- setup ecs
-local edb = ecs.EntityDb()
-local sdb = ecs.SystemDb()
+local db = ecs.Database()
 
-local camera = edb:createEntity()
-edb:addComponent(camera, "camera", {
+local camera = db:createEntity()
+db:addComponent(camera, "camera", {
 	projection=Mat4():perspective(math.rad(45), 640/480, 0.1, 100),
 })
-edb:addComponent(camera, "transform", {
+db:addComponent(camera, "transform", {
 	matrix=Mat4():identity():translate(Vec3{0, 0, -6}),
 })
-edb:addComponent(camera, "script", {
+db:addComponent(camera, "script", {
 	name = "cameraRotationScript",
 })
 
 
-sdb:addSystem(stdSystem.transform, {db=edb})
-sdb:addSystem(stdSystem.renderCamera, {camera=camera, db=edb})
-sdb:addSystem(stdSystem.script, {db=edb})
+db:addSystem(stdSystem.transform)
+db:addSystem(stdSystem.renderCamera, {camera=camera})
+db:addSystem(stdSystem.script)
 package.loaded['baseRotationScript'] = function(db, id, dt)
-	local transform = edb:getComponent(id, "transform")
+	local transform = db:getComponent(id, "transform")
 	transform.matrix:rotateZ(math.pi * dt)
 end
 package.loaded['cameraRotationScript'] = function(db, id, dt)
@@ -49,27 +48,27 @@ package.loaded['cameraRotationScript'] = function(db, id, dt)
 	end
 
 
-local id = edb:createEntity()
-edb:addComponent(id, "renderMesh", {
+local id = db:createEntity()
+db:addComponent(id, "renderMesh", {
 	textures = {
 		ourTexture={ filename="77155.png" },
 	},
 	shader = { vertex="vertex.glsl", fragment="fragment.glsl" },
 	mesh = { filename="assets/icosahedron.obj", index=1 },
 })
-edb:addComponent(id, "transform", {
+db:addComponent(id, "transform", {
 	matrix = Mat4():identity():rotateZ(math.rad(45)),
 })
-edb:addComponent(id, "script", {
+db:addComponent(id, "script", {
 	name = "baseRotationScript",
 })
 
-local id2 = edb:createEntity()
-edb:addComponent(id2, "renderMesh", {
+local id2 = db:createEntity()
+db:addComponent(id2, "renderMesh", {
 	shader = { vertex="vertex.glsl", fragment="fragment.glsl" },
 	mesh = { filename="assets/tetrahedron.obj", index=1 },
 })
-edb:addComponent(id2, "transform", {
+db:addComponent(id2, "transform", {
 	parent=id,
 	matrix=Mat4():identity():translate(Vec3{0, 2, 0}),
 })
@@ -88,7 +87,7 @@ end)
 -- resize window correctly
 window:setFramebufferSizeCallback(function(_, width, height)
 	gl.Viewport(0, 0, width, height)
-	local cameraParams = edb:getComponent(camera, "camera")
+	local cameraParams = db:getComponent(camera, "camera")
 	cameraParams.projection:perspectiveResize(width/height)
 	vw, vh = width, height
 end)
@@ -116,11 +115,11 @@ honey.loop(window, function(dt)
 	gl.Enable(gl.DEPTH_TEST)
 	gl.Disable(gl.CULL_FACE)
 
-	sdb:update(dt)
+	db:update(dt)
 	nvg.BeginFrame(vg, vw, vh, 1.0)
 	nvg.StrokeColor(vg, nvg.RGBf(1, 1, 1))
 	nvg.FontFace(vg, "November")
-	nvg.Text(vg, 50, 50, "fps: "..tostring(math.floor(fpsAverage(1/dt))))
+	nvg.Text(vg, 50, 50, "fps: "..tostring(math.floor(1/dt)))
 	nvg.EndFrame(vg)
 end)
 
-- 
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