我有六角网格的这些功能。它们适用于常规十六进制网格。这些函数对于压扁的六角网格有什么作用。通过压扁十六进制网格,我的意思是一个网格,其中每个十六进制都比它高。
coordinates_to_pixel = function(x, y) {
var pixel_x = s_hex_size * 3/2 * x
var pixel_y = s_hex_size * Math.sqrt(3) * (y + x/2)
return { x: pixel_x, y: pixel_y }
}
pixel_to_coordinates = function(x, y) {
var q = 2/3 * x / s_hex_size
var r = (1/3 * Math.sqrt(3) * y - 1/3 * x) / s_hex_size
var cube = convert_axial_to_cube_coordinates(q,r)
var round = round_cube_coordinates(cube.x, cube.y, cube.z)
var axial = convert_cube_to_axial_coordinates(round.x, round.y, round.z)
return { x:axial.x, y:axial.y }
}
hex_points = function(x, y) {
var pixel = coordinates_to_pixel(x,y)
var points = ''
for (var i = 0; i < 6; i++) {
var angle = 2 * Math.PI / 6 * i
var point_x = (hex_size * Math.cos(angle)) + pixel.x + canvas_width/2
var point_y = (hex_size * Math.sin(angle)) + pixel.y + canvas_height/2
if (i != 0) { points = points + ' '; }
points = points + point_x.toString() + ',' + point_y.toString()
}
return points
})
这是我用压扁十六进制网格表示的意思。 hex grid image
以下是转换和舍入功能。
convert_axial_to_cube_coordinates = function(q,r) {
return {
x: q,
y: -1 * q - r,
z: r
}
}
convert_cube_to_axial_coordinates = function(x,y,z) {
return {x: x, y: z}
}
round_cube_coordinates = function(x,y,z) {
var rx = Math.round(x)
var ry = Math.round(y)
var rz = Math.round(z)
var x_diff = Math.abs(rx - x)
var y_diff = Math.abs(ry - y)
var z_diff = Math.abs(rz - z)
if (x_diff > y_diff && x_diff > z_diff) {
rx = -1 * ry - rz
} else if (y_diff > z_diff) {
ry = -1 * rx - rz
} else {
rz = -1 * rx - ry
}
return {x: rx, y: ry, z: rz}
}
答案 0 :(得分:1)
想出来。 coordinates_to_pixel是Math.sqrt(3)* squish因子。 Pixel_to_coordinates是Math.sqrt(3)/ squish_factor。一个是乘法,另一个是分裂。