:quality(85)/https:%2F%2Fcdn.frvr.ai/686b88f1298ae6a06723794d.png)
:quality(85)/https:%2F%2Fcdn.frvr.ai/686b890f298ae6a06723794f.png)
Creation History
Code edit (5 edits merged)
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make an arg for wireframes on the drawTri function, default false.
Code edit (2 edits merged)
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In the drawTri function, fill in the triangles using the scanline rendering algorithm.
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Fill in the triangles using the scanline rendering algorithm.
Code edit (2 edits merged)
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Create a class "Cube" and store the triangles for now.
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optimise the code for speed
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Draw a 1000 random lines in a loop in between the start valuable and the console log
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Please fix the bug: 'toString is not a function' in or related to this line: 'console.log("Time: " + toString(Date.now() - start));' Line Number: 82
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Draw the triangles in the tris.forEach function
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Make a line drawing function using the putPixel function
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Please fix the bug: 'tween.to is not a function' in or related to this line: 'tween.to(self, {' Line Number: 36 ↪💡 Consider importing and using the following plugins: @upit/tween.v1
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Please fix the bug: 'tween is not defined' in or related to this line: 'tween.to(self, {' Line Number: 31 ↪💡 Consider importing and using the following plugins: @upit/tween.v1
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add a new tab "screen.js"
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Create a file called "screen.js"
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Create a file called "screen.js"
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Please fix the bug: 'Cannot read properties of undefined (reading '3')' in or related to this line: 'game.childen[3].tint = 0xFFFFFF;' Line Number: 50
/****
* Initialize Game
****/
var game = new LK.Game({
backgroundColor: 0
});
/****
* Game Code
****/
//[x1, y1, x2, y2, x3, y3]
var triangles = [[0, 0, 8, 0, 0, 8], [0, 8, 8, 0, 8, 8]];
// Game constants for the grid
var GRID_SIZE = 64;
var PIXEL_SIZE = 2048 / GRID_SIZE;
// Cache children array reference
var screen = game.children;
function putPixel(x, y, color) {
if (x >= 0 && x < GRID_SIZE && y >= 0 && y < GRID_SIZE) {
screen[x + y * GRID_SIZE].tint = color;
}
}
// Line drawing function using Bresenham's line algorithm
function drawLine(x0, y0, x1, y1, color) {
var dx = x1 - x0;
var dy = y1 - y0;
var adx = dx < 0 ? -dx : dx;
var ady = dy < 0 ? -dy : dy;
var sx = dx < 0 ? -1 : 1;
var sy = dy < 0 ? -1 : 1;
var err = adx - ady;
var x = x0;
var y = y0;
while (true) {
putPixel(x, y, color);
if (x === x1 && y === y1) {
break;
}
var e2 = 2 * err;
if (e2 > -ady) {
err -= ady;
x += sx;
}
if (e2 < adx) {
err += adx;
y += sy;
}
}
}
var colorIndex = 0;
var offset = 2732 / 2 - GRID_SIZE * PIXEL_SIZE / 2;
// Create the grid of pixels
for (var y = 0; y < GRID_SIZE; y++) {
for (var x = 0; x < GRID_SIZE; x++) {
// Get an instance of our pixel asset
var pixel = LK.getAsset('pixel', {
x: x * PIXEL_SIZE,
y: y * PIXEL_SIZE + offset,
tint: 0
});
game.addChild(pixel);
}
}
//Start of the 3d renderer
var start = Date.now();
triangles.forEach(function (tri, i) {
// Extract triangle vertices
var x1 = tri[0];
var y1 = tri[1];
var x2 = tri[2];
var y2 = tri[3];
var x3 = tri[4];
var y3 = tri[5];
// Draw the three sides of the triangle
drawLine(x1, y1, x2, y2, 0xffffff); // Side 1-2
drawLine(x2, y2, x3, y3, 0xffffff); // Side 2-3
drawLine(x3, y3, x1, y1, 0xffffff); // Side 3-1
});
console.log("Time: " + String(Date.now() - start)); ===================================================================
--- original.js
+++ change.js
@@ -8,9 +8,9 @@
/****
* Game Code
****/
//[x1, y1, x2, y2, x3, y3]
-var tris = [[0, 0, 8, 0, 0, 8], [0, 8, 8, 0, 8, 8]];
+var triangles = [[0, 0, 8, 0, 0, 8], [0, 8, 8, 0, 8, 8]];
// Game constants for the grid
var GRID_SIZE = 64;
var PIXEL_SIZE = 2048 / GRID_SIZE;
// Cache children array reference
@@ -62,9 +62,9 @@
}
}
//Start of the 3d renderer
var start = Date.now();
-tris.forEach(function (tri, i) {
+triangles.forEach(function (tri, i) {
// Extract triangle vertices
var x1 = tri[0];
var y1 = tri[1];
var x2 = tri[2];
@@ -75,9 +75,5 @@
drawLine(x1, y1, x2, y2, 0xffffff); // Side 1-2
drawLine(x2, y2, x3, y3, 0xffffff); // Side 2-3
drawLine(x3, y3, x1, y1, 0xffffff); // Side 3-1
});
-console.log("Time: " + String(Date.now() - start));
-// Cube class to store triangles
-var Cube = function Cube(triangles) {
- this.triangles = triangles || [];
-};
\ No newline at end of file
+console.log("Time: " + String(Date.now() - start));
\ No newline at end of file
