3d turtle graphics: Difference between revisions
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→{{header|Wren}}: Changed to Wren S/H
(added Phix and draft task, and made using a cube for the house and square cross sections optional) |
m (→{{header|Wren}}: Changed to Wren S/H) |
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Assumes jqt and a "recent" (2022) version of J.
<
NB. ;install each cut 'gl2 gles github:zerowords/tgsjo'
load'zerowords/tgsjo'
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left 180
forward 30
roll 180</
=={{header|Phix}}==
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Reuses [[Simple_turtle_graphics#Phix|turtle.e]], however the code I really wanted to squirrel away has ended up in [[3d_turtle_graphics/Phix|turtle_projection.e]].
You can run this online [http://phix.x10.mx/p2js/3Dturtle.htm here].
<!--<
<span style="color: #000080;font-style:italic;">--
-- demo\rosetta\3D_turtle_graphics.exw
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<span style="color: #7060A8;">IupClose</span><span style="color: #0000FF;">()</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<!--</
=={{header|Wren}}==
{{libheader|DOME}}
{{libheader|Wren-turtle}}
<syntaxhighlight lang="wren">import "dome" for Window
import "graphics" for Canvas, Color
import "math" for Math
import "./turtle" for Turtle
class Main {
construct new(width, height) {
Window.resize(width, height)
Canvas.resize(width, height)
Window.title = "3d turtle graphics"
_w = width
_h = height
}
init() {
Canvas.cls(Color.white)
_t = Turtle.new()
drawHouse3D(_w/4)
barChart([15, 10, 50, 35, 20], _w/3)
}
drawRectCuboid(x, y, hsize, vsize) {
// draw front rectangle
_t.drawRect(x, y, hsize, vsize)
// draw back rectangle
_t.drawRect(x + hsize/2, y - hsize/2, hsize, vsize)
var side = ((2 * hsize * hsize).sqrt/2).floor
// turn right 45 degrees
_t.right(45)
// goto bottom left front
_t.goto(x, y + vsize)
_t.walk(side)
// goto top left front
_t.goto(x, y)
_t.walk(side)
// goto bottom right front
_t.goto(x + hsize, y + vsize)
_t.walk(side)
// goto top right front
_t.goto(x + hsize, y)
_t.walk(side)
}
drawHouse3D(size) {
// save initial turtle position and direction
var saveX = _t.x
var saveY = _t.y
var saveD = _t.dir
_t.pen.width = 2
// draw house
drawRectCuboid(_w/8, _h/2, size, size)
// draw roof
_t.left(10)
_t.goto(_w/8, _h/2)
_t.walk(size)
_t.dir = 63
_t.walk((size*15/16).floor)
_t.back((size*15/16).floor)
_t.left(44)
_t.walk((size*31/32).floor)
_t.back((size*31/32).floor)
_t.dir = 102
_t.walk((size/3).floor)
// draw door
var doorWidth = (size/4).floor
var doorHeight = (size/2.5).floor
_t.drawRect(_w/4 + doorWidth/2, _h/2 + (size/2).floor - doorHeight, doorWidth, doorHeight)
// draw window
var windWidth = (size/3).floor
var windHeight = (size/4).floor
_t.drawRect(_w/4 + size/1.8, _h/2 + (size/2.8).floor - windHeight, windWidth, windHeight)
// restore initial turtle position and direction
_t.x = saveX
_t.y = saveY
_t.dir = saveD
}
// nums assumed to be all non-negative
barChart(nums, size) {
_t.pen.color = Color.brown
// save intial turtle position and direction
var saveX = _t.x
var saveY = _t.y
var saveD = _t.dir
// find maximum
var max = 0
for (n in nums) if (n > max) max = n
// scale to fit within a square with sides 'size' and draw chart
var barWidth = (size / nums.count).floor
var startX = _w / 2 + 20
var startY = _h / 2
for (i in 0...nums.count) { // nums.count) {
var barHeight = (nums[i] * size / max).round
drawRectCuboid(startX, startY - barHeight, barWidth, barHeight)
startX = startX + barWidth
}
// restore intial turtle position and direction
_t.x = saveX
_t.y = saveY
_t.dir = saveD
}
update() {}
draw(alpha) {}
}
var Game = Main.new(800, 800)</syntaxhighlight>
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