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Implemented a surface resize method. #3

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Implemented a surface resize method. #3

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3a70559
Implemented a surface resize method.
Jan 21, 2021
f86a449
Fixed bug where drawing to new width and height will not take effect.
Jan 21, 2021
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28 changes: 28 additions & 0 deletions src/core.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -344,6 +344,34 @@ function surf:copy()
return surface
end

function surf:resize(width, height, b, t, c)
local newbuffer = { }
for y = 0, height - 1 do
for x = 0, width - 1 do
if (x >= 0 and x < self.width) and (y >= 0 and y < self.height) then
newbuffer[3 * (y * width + x) + 1] = self.buffer[3 * (y * self.width + x) + 1]
newbuffer[3 * (y * width + x) + 2] = self.buffer[3 * (y * self.width + x) + 2]
newbuffer[3 * (y * width + x) + 3] = self.buffer[3 * (y * self.width + x) + 3]
else
if b or self.overwrite then
newbuffer[3 * (y * width + x) + 1] = b
end
if t or self.overwrite then
newbuffer[3 * (y * width + x) + 2] = t
end
if c or self.overwrite then
newbuffer[3 * (y * width + x) + 3] = c
end
end
end
end
newbuffer[3 * width * height + 1] = false

self.buffer = newbuffer
self.width, self.cwidth = width, width
self.height, self.cheight = height, height
end

function surf:clear(b, t, c)
local xoffset, yoffset

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