fix for strict.lua

path.lua

@@ -776,13 +776,13 @@ local function path_length(path, mt)
 	return total
 end
 
-line_len       = require'path_line'.length
-quad_curve_len = require'path_bezier2'.length
-curve_len      = require'path_bezier3'.length
-arc_len        = require'path_arc'.length
-circle_len     = require'path_shapes'.circle_length
-rect_len       = require'path_shapes'.rect_length
-round_rect_len = require'path_shapes'.round_rect_length
+local line_len       = require'path_line'.length
+local quad_curve_len = require'path_bezier2'.length
+local curve_len      = require'path_bezier3'.length
+local arc_len        = require'path_arc'.length
+local circle_len     = require'path_shapes'.circle_length
+local rect_len       = require'path_shapes'.rect_length
+local round_rect_len = require'path_shapes'.round_rect_length
 
 function len.move() end
 

path_arc.lua

@@ -6,6 +6,8 @@
 --mt is an affine transform that applies to the resulted segments.
 --segment_max_sweep is for limiting the arc portion that each bezier segment can cover and is computed automatically.
 
+if not ... then require'path_arc_demo' end
+
 local reflect_point = require'path_point'.reflect_point
 local rotate_point  = require'path_point'.rotate_point
 local hypot = require'path_point'.hypot
@@ -129,7 +131,7 @@ local function transformed_circle_major_axis(mt, r)
 end
 
 --this formula is such that enables a non-oscillating segment-time-to-arc-time at screen resolutions (see demo).
-function best_segment_max_sweep(mt, rx, ry)
+local function best_segment_max_sweep(mt, rx, ry)
 	local scale_factor = transformed_circle_major_axis(mt, max(abs(rx), abs(ry))) / 1024
 	scale_factor = max(scale_factor, 0.1) --cap scale factor so that we don't create sweeps larger than 90 deg.
 	return sqrt(1/scale_factor^0.6) * 30 --faster way to say 1/2^log10(scale) * 30
@@ -372,8 +374,6 @@ local function to_arc_3p(cx, cy, rx, ry, start_angle, sweep_angle, rotation, x2,
 	return x1, y1, xp, yp, x2, y2
 end
 
-if not ... then require'path_arc_demo' end
-
 return {
 	observed_sweep = observed_sweep,
 	sweep_between = sweep_between,

path_bezier3_hit.lua

@@ -15,6 +15,7 @@ local bezier5_roots
 local bezier5_crossing_count
 local bezier5_flat_enough
 local bezier5_split_in_half
+local bezier5_xintercept
 
 --shortest distance-squared from point (x0, y0) to a cubic bezier curve, plus the touch point,
 --and the parametric value t on the curve where the touch point splits the curve.