From 10f472771b00b79a479ab54c879f10d234197166 Mon Sep 17 00:00:00 2001
From: Landon Manning <lmanning17@gmail.com>
Date: Sun, 20 Dec 2015 22:35:06 -0400
Subject: [PATCH] Added simple object and shape constructors

ray, aabb, obb, plane, sphere, line, triangle
---
 modules/utils.lua | 73 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)

diff --git a/modules/utils.lua b/modules/utils.lua
index 27262d3..3bd0b59 100644
--- a/modules/utils.lua
+++ b/modules/utils.lua
@@ -104,4 +104,77 @@ function utils.is_pot(value)
   return (frexp(value)) == 0.5
 end
 
+--- Simple ray constructor.
+-- @param position
+-- @param direction
+-- @return table
+function utils.ray(position, direction)
+	return {
+		position  = position,
+		direction = direction
+	}
+end
+
+--- Simple aabb constructor.
+-- @param min
+-- @param max
+-- @return table
+function utils.aabb(min, max)
+	return {
+		min = min,
+		max = max
+end
+
+--- Simple obb constructor.
+-- @param min
+-- @param max
+-- @param rotation
+-- @return table
+function utils.obb(min, max, rotation)
+	return {
+		min      = min,
+		max      = max,
+		rotation = rotation
+	}
+end
+
+--- Simple plane constructor.
+-- @param position
+-- @param normal
+-- @return table
+function utils.plane(position, normal)
+	return {
+		position = position,
+		normal   = normal
+	}
+end
+
+--- Simple sphere/circle constructor.
+-- @param position
+-- @param radius
+-- @return table
+function utils.sphere(position, radius)
+	return {
+		position = position,
+		radius   = radius
+	}
+end
+
+--- Simple line/segment constructor.
+-- @param v1
+-- @param v2
+-- @return table
+function utils.line(v1, v2)
+	return { v1, v2 }
+end
+
+--- Simple triangle constructor.
+-- @param v1
+-- @param v2
+-- @param v3
+-- @return table
+function utils.triangle(v1, v2, v3)
+	return { v1, v2, v3 }
+end
+
 return utils