From e603997055259039cefcdceaece5604e3856e36d Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Sat, 15 Apr 2023 01:56:14 -0500
Subject: fix circular reference bug for physics objects

---
 main.lua | 130 +++++++++++++++++++++++++++++++--------------------------------
 1 file changed, 63 insertions(+), 67 deletions(-)

(limited to 'main.lua')

diff --git a/main.lua b/main.lua
index 30581fc..fe97123 100644
--- a/main.lua
+++ b/main.lua
@@ -35,25 +35,8 @@ end)
 local entities = ecs.EntityDb()
 local systems = ecs.SystemDb(entities)
 
-local camera = entities:createEntity()
-entities:addComponents(camera, {
-	camera={
-		projection=Mat4():perspective(math.rad(45), 640/480, 0.1, 100),
-	},
-	transform={
-		matrix=Mat4():identity():translate(Vec3{0, 0, -6}),
-	},
-	z = {value=-60},
-	script={
-		script="cameraRotationScript",
-	},
-	onKey = {
-		script="cameraKeyHandler",
-	},
-})
-
 systems:addSystem(sys.transform)
-systems:addSystem(sys.renderCamera, {camera=camera})
+systems:addSystem(sys.renderCamera)
 systems:addSystem(sys.script)
 systems:addSystem(sys.physics, {space=space, world=world})
 package.loaded['baseRotationScript'] = function(entities, id, dt)
@@ -76,39 +59,61 @@ package.loaded['cameraKeyHandler'] = function(entities, id, data)
 	end	
 end
 
-
-local id = entities:createEntity()
-entities:addComponents(id, {
-	renderMesh = {
-		textures = { ourTexture={ filename="77155.png" } },
-		shader = { vertex="vertex.glsl", fragment="fragment.glsl" },
-		mesh = { filename="assets/icosahedron.obj", index=1 },
-	},
-	transform = {
-		matrix = Mat4():identity():rotateZ(math.rad(45)),
-	},
-	physics = {
-		mass = {
-			class = "sphere",
-			density = 1,
-			radius = 1,
+function setupEntities()
+	local camera = entities:createEntity()
+	entities:addComponents(camera, {
+		camera={
+			projection=Mat4():perspective(math.rad(45), 640/480, 0.1, 100),
 		},
-		velocity = Vec3{ 0, 10, 0 },
-		angularVelocity = Vec3{ 0, 1, 0 },
-	},
-})
-
-local id2 = entities:createEntity()
-entities:addComponents(id2, {
-	renderMesh = {
-		shader = { vertex="vertex.glsl", fragment="fragment.glsl" },
-		mesh = { filename="assets/tetrahedron.obj", index=1 },
-	},
-	transform = {
-		parent=id,
-		matrix=Mat4():identity():translate(Vec3{0, 2, 0}),
-	},
-})
+		transform={
+			matrix=Mat4():identity():translate(Vec3{0, 0, -6}),
+		},
+		z = {value=-60},
+		script={
+			script="cameraRotationScript",
+		},
+		onKey = {
+			script="cameraKeyHandler",
+		},
+		onWindowResize = { script = "cameraHandleResize" },
+	})
+	
+	
+	
+	local id = entities:createEntity()
+	entities:addComponents(id, {
+		renderMesh = {
+			textures = { ourTexture={ filename="77155.png" } },
+			shader = { vertex="vertex.glsl", fragment="fragment.glsl" },
+			mesh = { filename="assets/icosahedron.obj", index=1 },
+		},
+		transform = {
+			matrix = Mat4():identity():rotateZ(math.rad(45)),
+		},
+		physics = {
+			mass = {
+				class = "sphere",
+				density = 1,
+				radius = 1,
+			},
+			velocity = Vec3{ 0, 10, 0 },
+			angularVelocity = Vec3{ 0, 1, 0 },
+		},
+	})
+	
+	local id2 = entities:createEntity()
+	entities:addComponents(id2, {
+		renderMesh = {
+			shader = { vertex="vertex.glsl", fragment="fragment.glsl" },
+			mesh = { filename="assets/tetrahedron.obj", index=1 },
+		},
+		transform = {
+			parent=id,
+			matrix=Mat4():identity():translate(Vec3{0, 2, 0}),
+		},
+	})
+end
+setupEntities()
 
 
 
@@ -121,6 +126,7 @@ window:setKeyCallback(function(_, key, scancode, action)
 		elseif key == glfw.KEY_SPACE then
 			entities:save("save")
 		elseif key == glfw.KEY_L then
+			entities:load("save")
 		end
 	end
 end)
@@ -136,29 +142,19 @@ package.loaded["cameraHandleResize"] = function(entities, id, data)
 	local camera = entities:getComponent(id, "camera")
 	camera.projection:perspectiveResize(data.width/data.height)
 end
-entities:addComponent(camera, "onWindowResize", { script = "cameraHandleResize" })
-
--- averager (for fps)
-function averager(memory)
-	local buf = {}
-	local avg = 0
-	for i=1,memory do table.insert(buf, 0) end
-	return function(value)
-		table.insert(buf, value)
-		local val = table.remove(buf, 1)
-		avg = avg + value - val
-		return avg / memory
-	end
-end
-local fpsAverage = averager(200)
 
 
-
-entities:load("save")
+--entities:load("save")
 
 
 -- main loop
+local time = 0
 honey.loop(window, function(dt)
+	time = time + dt
+	if time > 1 then
+		time = time-1
+		print(collectgarbage("count"))
+	end
 	gl.ClearColor(0.2, 0.4, 1.0, 1.0)
 	gl.Clear(gl.COLOR_BUFFER_BIT + gl.DEPTH_BUFFER_BIT + gl.STENCIL_BUFFER_BIT)
 
-- 
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