1 files changed, 27 insertions, 0 deletions
diff --git a/util.lua b/util.lua
new file mode 100644
index 0000000..6172d84
--- /dev/null
+++ b/util.lua
@@ -0,0 +1,27 @@
+local hsluv = require 'hsluv'
+
+local G = love.graphics
+local function mouse_pos()
+	-- in world space
+	return G.inverseTransformPoint(love.mouse.getPosition())
+end
+
+local function write_at(text,x,y)
+	local tx,ty = G.transformPoint(x,y)
+	G.push()
+	G.origin()
+	G.print(text,tx,ty)
+	G.pop()
+end
+
+local function phi_color(n)
+	local phi = (1+math.sqrt(5))/2
+	local h = (360*phi*n)%360
+	return hsluv.hsluv_to_rgb({h, 80, 60})
+end
+
+return {
+	mouse_pos = mouse_pos,
+	write_at = write_at,
+	phi_color = phi_color,
+}