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Ingy döt Net 2026-04-30 12:34:36 -04:00
parent 4bb20c9b71
commit cbaf4c4b64
12390 changed files with 318560 additions and 27248 deletions
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47
Task/Draw-a-pixel/Ada/draw-a-pixel.adb Normal file
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with SDL.Video.Windows.Makers;
with SDL.Video.Renderers.Makers;
with SDL.Events.Events;
procedure Draw_A_Pixel is
Width : constant := 320;
Height : constant := 200;
Window : SDL.Video.Windows.Window;
Renderer : SDL.Video.Renderers.Renderer;
procedure Wait is
use type SDL.Events.Event_Types;
Event : SDL.Events.Events.Events;
begin
loop
while SDL.Events.Events.Poll (Event) loop
if Event.Common.Event_Type = SDL.Events.Quit then
return;
end if;
end loop;
delay 0.100;
end loop;
end Wait;
begin
if not SDL.Initialise (Flags => SDL.Enable_Screen) then
return;
end if;
SDL.Video.Windows.Makers.Create (Win => Window,
Title => "Draw a pixel",
Position => SDL.Natural_Coordinates'(X => 10, Y => 10),
Size => SDL.Positive_Sizes'(Width, Height),
Flags => 0);
SDL.Video.Renderers.Makers.Create (Renderer, Window.Get_Surface);
Renderer.Set_Draw_Colour ((0, 0, 0, 255));
Renderer.Fill (Rectangle => (0, 0, Width, Height));
Renderer.Set_Draw_Colour ((255, 0, 0, 255));
Renderer.Draw (Point => (100, 100));
Window.Update_Surface;
Wait;
Window.Finalize;
SDL.Finalise;
end Draw_A_Pixel;

32
Task/Draw-a-pixel/Odin/draw-a-pixel-1.odin Normal file
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package main
import "vendor:sdl2"
main :: proc() {
using sdl2
window: ^Window = ---
renderer: ^Renderer = ---
event: Event = ---
Init(INIT_VIDEO)
CreateWindowAndRenderer(
640, 480,
WINDOW_SHOWN,
&window, &renderer
)
SetWindowTitle(window, "Empty window")
SetRenderDrawColor(renderer, 50, 255, 100, 255)
RenderDrawPoint(renderer, 100, 100)
RenderPresent(renderer)
for event.type != .QUIT {
Delay(10)
PollEvent(&event)
}
DestroyRenderer(renderer)
DestroyWindow(window)
Quit()
}

19
Task/Draw-a-pixel/Odin/draw-a-pixel-2.odin Normal file
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package main
import rl "vendor:raylib"
main :: proc() {
rl.InitWindow(320, 240, "Rosetta Code - Draw a pixel")
for !rl.WindowShouldClose() {
rl.BeginDrawing()
rl.ClearBackground(rl.BLACK)
rl.DrawPixelV({100, 100}, {255, 0, 0, 255})
rl.EndDrawing()
}
rl.CloseWindow()
}

9
Task/Draw-a-pixel/R/draw-a-pixel.r Normal file
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disp_h <- 240
disp_w <- 320
mat <- matrix(0, nrow = disp_w, ncol = disp_h)
mat[100, 100] <- 1
png("DrawPixel-R.png", disp_w, disp_h)
op <- par(mar = rep(0, 4), mai = rep(0, 4))
image(mat, col = c("white", "red"), useRaster = TRUE, axes = FALSE)
par(op)
dev.off()

15
Task/Draw-a-pixel/ReScript/draw-a-pixel-1.res Normal file
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@ -0,0 +1,15 @@
type document // abstract type for a document object
type context = { mutable fillStyle: string, }
@val external doc: document = "document"
@send external getElementById: (document, string) => Dom.element = "getElementById"
@send external getContext: (Dom.element, string) => context = "getContext"
@send external fillRect: (context, int, int, int, int) => unit = "fillRect"
let canvas = getElementById(doc, "my_canvas")
let ctx = getContext(canvas, "2d")
ctx.fillStyle = "#F00"
fillRect(ctx, 100, 100, 1, 1)

30
Task/Draw-a-pixel/ReScript/draw-a-pixel-2.res Normal file
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<!DOCTYPE html>
<html>
<head>
<title>Draw a Pixel</title>
<style rel="stylesheet" type="text/css">
body {
background-color:#777;
}
canvas {
background-color:#888;
margin:60px 120px;
border:1px solid #555;
box-shadow: -1px 2px 6px 1px rgba(0,0,0,0.3);
}
</style>
</head>
<body>
<canvas id="my_canvas" width="320" height="240">
No support for HTML5 Canvas.<br />
</canvas>
<script type="text/javascript" src="draw.bs.js"></script>
<noscript>
No support for Javascript.<br />
</noscript>
</body>
</html>

10
Task/Draw-a-pixel/Rebol/draw-a-pixel.rebol Normal file
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Rebol [
title: "Rosetta code: Draw a pixel"
file: %Draw_a_pixel.r3
url: https://rosettacode.org/wiki/Draw_a_pixel
]
img: make image! 320x240 ;; Create a new image of size 320x240 pixels
img/(100x100): 255.0.0 ;; Set the pixel at position 100x100 to pure red
save %test.png img ;; Save the image to a PNG file named "test.png"
browse %test.png ;; Open the saved image file using the default browser

3
Task/Draw-a-pixel/V-(Vlang)/draw-a-pixel.v
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@ -1,5 +1,4 @@
import gg
import gx
fn main() {
mut context := gg.new_context(
@ -12,6 +11,6 @@ fn main() {
fn frame(mut ctx gg.Context) {
ctx.begin()
ctx.draw_pixel(100, 100, gx.red)
ctx.draw_pixel(100, 100, gg.red)
ctx.end()
}