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Code Issues Releases Activity

new functions

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This commit is contained in:
grilledham 2018-01-21 15:31:33 +00:00
parent e4d6a7ca33
commit 9775b7c945
1 changed files with 58 additions and 2 deletions
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60
map_gen/shared/builders.lua
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@ -28,12 +28,30 @@ end
function rectangle_builder(width, height)
width = width / 2
height = height / 2
if height then
height = height / 2
else
height = width
end
return function (x, y)
return x > -width and x <= width and y > -height and y <= height
end
end
function line_x_builder(thickness)
thickness = thickness / 2
return function(x, y)
return y > - thickness and y <= thickness
end
end
function line_y_builder(thickness)
thickness = thickness / 2
return function(x, y)
return x > - thickness and x <= thickness
end
end
function square_diamond_builder(size)
size = size / 2
return function (x, y)
@ -398,7 +416,12 @@ function single_pattern_builder(shape, width, height)
shape = shape or empty_builder
local half_width = width / 2
local half_height = height / 2
local half_height
if height then
half_height = height / 2
else
half_height = half_width
end
return function (local_x, local_y, world_x, world_y)
local_y = ((local_y + half_height) % height) - half_height
@ -408,6 +431,30 @@ function single_pattern_builder(shape, width, height)
end
end
function single_x_pattern_builder(shape, width)
shape = shape or empty_builder
local half_width = width / 2
return function (local_x, local_y, world_x, world_y)
local_x = ((local_x + half_width) % width) - half_width
return shape(local_x, local_y, world_x, world_y)
end
end
function single_y_pattern_builder(shape, height)
shape = shape or empty_builder
local half_height = height / 2
return function (local_x, local_y, world_x, world_y)
local_y = ((local_y + half_height) % height) - half_height
return shape(local_x, local_y, world_x, world_y)
end
end
function grid_pattern_builder(pattern, columns, rows, width, height)
local half_width = width / 2
@ -428,7 +475,16 @@ function grid_pattern_builder(pattern, columns, rows, width, height)
end
end
function segment_pattern_builder(pattern)
local count = #pattern
return function(local_x, local_y, world_x, world_y)
local angle = math.atan2(-local_y , local_x)
local index = math.floor(angle / tau * count) % count + 1
local shape = pattern[index] or empty_builder
return shape(local_x, local_y, world_x, world_y)
end
end
-- tile converters