I double checked the Button() class and don’t see where w and h are defined. Here is my code:
Button = class()
--mesh button class courtesy of @Vega
function Button:init(text, location, width, height)
-- you can accept and set parameters here
self.state = "normal"
self.text = text
self.textColor = color(255,255,255,192)
self.location = location
self.width = width
self.height = height
self.visible = true
self.fontSize = 28
self.font = "ArialRoundedMTBold"
self.color1 = color(255,255,255,96)
self.color2 = color(128,128,128,32)
self.presscolor1 = color(192,224,224,128)
self.presscolor2 = color(96,192,224,128)
self.verts = self:createVerts(self.width, self.height)
self.myMesh = mesh()
self.myMesh.vertices = triangulate(self.verts)
self.vertColor = {}
self:recolor()
self.action = nil
end
function Button:setColors(c1,c2,p1,p2)
self.color1 = c1
self.color2 = c2
self.presscolor1 = p1
self.presscolor2 = p2
end
function Button:textOptions(fn, sz, col)
self.font = fn
self.fontSize = sz
self.textColor = col
end
function Button:draw()
-- Codea does not automatically call this method
pushStyle()
if self.visible == true then
self:recolor()
pushMatrix()
translate(self.location.x, self.location.y)
self.myMesh:draw()
fill(self.textColor)
fontSize(self.fontSize)
font(self.font)
text(self.text, self.width/2, self.height/2)
self:drawLines(self.verts)
popMatrix()
end
popStyle()
end
function Button:touched(touch)
if self.visible then
if touch.x>=self.location.x and touch.x<= self.location.x + self.width and touch.y>= self.location.y and touch.y<= self.location.y + self.height then
if touch.state == BEGAN then
self.state = "pressing"
sound(SOUND_HIT, 14227)
elseif touch.state == ENDED then
if self.state == "pressing" then
self.state = "normal"
end
if self.action then
self.action()
end
end
else
self.state = "normal"
end
end
end
function Button:createVerts(w,h)
local r
local v = {}
if w > 100 or h > 100 then
if w >= h then r = math.round(h/100) else r = math.round(w/100) end
else
r = 1
end
v[1] = vec2(w, 6*r)
v[2] = vec2(w-r, 4*r)
v[3] = vec2(w-2*4, 2*r)
v[4] = vec2(w-4*r,r)
v[5] = vec2(w-6*r,0)
v[6] = vec2(6*r,0)
v[7] = vec2(4*r,r)
v[8] = vec2(2*r,2*r)
v[9] = vec2(r,4*r)
v[10] = vec2(0,6*r)
v[11] = vec2(0,h-6*r)
v[12] = vec2(r, h-4*r)
v[13] = vec2(2*4, h-2*r)
v[14] = vec2(4*r,h-r)
v[15] = vec2(6*r, h)
v[16] = vec2(w-6*r,h)
v[17] = vec2(w-4*r,h-r)
v[18] = vec2(w-2*r,h-2*r)
v[19] = vec2(w-r,h-4*r)
v[20] = vec2(w, h-6*r)
return v
end
function Button:drawLines(v)
noSmooth()
strokeWidth(1)
stroke(0,0,0,192)
for i = 1, #v-1 do
line(v[i].x,v[i].y,v[i+1].x,v[i+1].y)
end
line(v[#v].x,v[#v].y,v[1].x,v[1].y)
end
function Button:recolor()
local lt, dk
if self.state == "normal" then
lt = self.color1
dk = self.color2
else
lt = self.presscolor1
dk = self.presscolor2
end
for i = 1, 3 * #self.verts - 6 do
if self.myMesh.vertices[i].y> self.height/2 then
self.vertColor[i] = lt
else
self.vertColor[i] = dk
end
end
self.myMesh.colors = self.vertColor
end
