update to convert poly to mesh

src/Util.lua

@@ -70,4 +70,47 @@ function print_s(segments)
     for k, s in ipairs(segments) do
         s:debug(tostring(k))
     end
-end
+end
+
+-- convert a list of points forming a polygon {x1, y1, x2, y2, ...} into a mesh
+
+function poly2mesh(points)
+    -- remove duplicates???
+    local polypts = love.math.triangulate(points)
+    local tlist
+
+    local vnums = {}
+    local vcoords = {}
+    do
+        local verthash = {}
+        local n = 0
+        local v
+        -- use unique vertices by using a coordinate hash table
+        for i = 1, #polypts do
+            for j = 1, 3 do
+                local px = polypts[i][j * 2 - 1]
+                local py = polypts[i][j * 2]
+                if not verthash[px] then verthash[px] = {} end
+                if not verthash[px][py] then
+                    n = n + 1
+                    verthash[px][py] = n
+                    vcoords[n * 2 - 1] = px
+                    vcoords[n * 2] = py
+                    v = n
+                else
+                    v = verthash[px][py]
+                end
+                vnums[(i - 1) * 3 + j] = v
+            end
+        end
+    end
+    local mesh = love.graphics.newMesh(#vcoords, "triangles", "static")
+    for i = 1, #vcoords / 2 do
+        local x, y = vcoords[i * 2 - 1], vcoords[i * 2]
+
+        -- Here's where the UVs are assigned
+        mesh:setVertex(i, x, y, x / 50, y / 50, .5, .5, .9, 1)
+    end
+    mesh:setVertexMap(vnums)
+    return mesh
+end