13079282556

Committed 07 May 2022 10:53PM UTC coverage: 57.717% (+43.7%) from 14.013%

Build # 13079282556

Build Type

push

github

Committed by

shakesoda

Commit Message

fix typo in mat4.mul

Run Details

0 of 1 new or added line in 1 file covered. (0.0%)

527 existing lines in 19 files now uncovered.

4581 of 7937 relevant lines covered (57.72%)

52.86 hits per line

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45.0

/modules/mesh.lua

--- Mesh utilities
-- @module mesh

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

excessive / cpml / 13079282556

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