6132588926

Committed 09 Sep 2023 06:38PM UTC coverage: 14.013% (-44.7%) from 58.701%

Build # 6132588926

Build Type

push

github

Committed by

FatalError42O

Commit Message

fixed Busted support (hopefully)

Run Details

975 of 6958 relevant lines covered (14.01%)

10.82 hits per line

Source File
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5.26

/modules/mesh.lua

--- Mesh utilities
-- @module mesh

local vec3    = require(modules .. "vec3")
local mesh    = {}

-- vertices is an arbitrary list of vec3s
function mesh.average(vertices)
        local out = vec3()
        for _, v in ipairs(vertices) do
                out = out + v
        end
        return out / #vertices
end

-- triangle[1] is a vec3
-- triangle[2] is a vec3
-- triangle[3] is a vec3
function mesh.normal(triangle)
        local ba = triangle[2] - triangle[1]
        local ca = triangle[3] - triangle[1]
        return ba:cross(ca):normalize()
end

-- triangle[1] is a vec3
-- triangle[2] is a vec3
-- triangle[3] is a vec3
function mesh.plane_from_triangle(triangle)
        return {
                origin = triangle[1],
                normal = mesh.normal(triangle)
        }
end

-- plane.origin is a vec3
-- plane.normal is a vec3
-- direction    is a vec3
function mesh.is_front_facing(plane, direction)
        return plane.normal:dot(direction) >= 0
end

-- point        is a vec3
-- plane.origin is a vec3
-- plane.normal is a vec3
-- plane.dot    is a number
function mesh.signed_distance(point, plane)
        return point:dot(plane.normal) - plane.normal:dot(plane.origin)
end

return mesh

1	--- Mesh utilities
2	-- @module mesh
3
4	local vec3 = require(modules .. "vec3")	3✔
5	local mesh = {}	×
6
7	-- vertices is an arbitrary list of vec3s
8	function mesh.average(vertices)	×
9	local out = vec3()	×
10	for _, v in ipairs(vertices) do	×
11	out = out + v	×
12	end
13	return out / #vertices	×
14	end
15
16	-- triangle[1] is a vec3
17	-- triangle[2] is a vec3
18	-- triangle[3] is a vec3
19	function mesh.normal(triangle)	×
20	local ba = triangle[2] - triangle[1]	×
21	local ca = triangle[3] - triangle[1]	×
22	return ba:cross(ca):normalize()	×
23	end
24
25	-- triangle[1] is a vec3
26	-- triangle[2] is a vec3
27	-- triangle[3] is a vec3
28	function mesh.plane_from_triangle(triangle)	×
29	return {	×
30	origin = triangle[1],
31	normal = mesh.normal(triangle)	×
32	}
33	end
34
35	-- plane.origin is a vec3
36	-- plane.normal is a vec3
37	-- direction is a vec3
38	function mesh.is_front_facing(plane, direction)	×
39	return plane.normal:dot(direction) >= 0	×
40	end
41
42	-- point is a vec3
43	-- plane.origin is a vec3
44	-- plane.normal is a vec3
45	-- plane.dot is a number
46	function mesh.signed_distance(point, plane)	×
47	return point:dot(plane.normal) - plane.normal:dot(plane.origin)	×
48	end
49
50	return mesh	×

excessive / cpml / 6132588926

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