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index.js
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let bodyElement = document.body;
/* Step 1: rendering manually */
let row1Element = document.createElement("div");
let row2Element = document.createElement("div");
row1Element.className = "row";
row2Element.className = "row";
bodyElement.append(row1Element, row2Element);
let square1Element = document.createElement("div")
let square2Element = document.createElement("div")
let square3Element = document.createElement("div")
let square4Element = document.createElement("div")
square1Element.style.backgroundColor = 'grey';
square2Element.style.backgroundColor = 'black';
square3Element.style.backgroundColor = 'black';
square4Element.style.backgroundColor = 'grey';
row1Element.append(square1Element, square2Element);
row2Element.append(square3Element, square4Element);
/* Step 2: matrix, colors array, and iteration */
let checkerMatrix = [
[1, 0, 1, 0],
[0, 1, 0, 1],
[1, 0, 1, 0],
[0, 1, 0, 1],
]
let checkerColors = ['red', 'blue']
checkerMatrix.forEach(currRow => {
let rowElement = document.createElement("div");
rowElement.className = 'row';
bodyElement.append(rowElement);
currRow.forEach(value => {
let squareElement = document.createElement("div")
squareElement.style.backgroundColor = checkerColors[value];
rowElement.append(squareElement);
});
});
/* Step 3: Write a function to draw any matrix with colors*/
function draw(matrix, colors) {
bodyElement.innerHTML = ""; // clear the body
matrix.forEach(currRow => {
let rowElement = document.createElement("div");
rowElement.className = 'row';
bodyElement.append(rowElement);
currRow.forEach(value => {
let squareElement = document.createElement("div")
squareElement.style.backgroundColor = colors[value];
rowElement.append(squareElement);
});
});
}
/* Step 4: Make some matrices! */
let apple = {
matrix: [
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 1, 1, 0, 0, 0],
[0, 0, 0, 0, 1, 0, 0, 0, 0, 0],
[0, 0, 1, 1, 0, 1, 1, 1, 0, 0],
[0, 1, 1, 1, 1, 1, 1, 0, 0, 0],
[0, 1, 1, 1, 1, 1, 1, 0, 0, 0],
[0, 1, 1, 1, 1, 1, 1, 1, 1, 0],
[0, 0, 1, 1, 1, 1, 1, 1, 0, 0],
[0, 0, 0, 1, 1, 1, 1, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
],
colors: ['white', 'red']
}
let pacman = {
matrix: [
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0, 0, 0],
[0, 0, 0, 0, 1, 2, 2, 2, 2, 2, 2, 2, 1, 0, 0, 0],
[0, 0, 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 0, 0],
[0, 0, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 1, 0],
[0, 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 0, 0],
[0, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 0, 0, 0, 0],
[0, 1, 2, 2, 2, 2, 2, 2, 1, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 0, 0, 0, 0],
[0, 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 0, 0],
[0, 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 0],
[0, 0, 0, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 0, 0],
[0, 0, 0, 0, 1, 2, 2, 2, 2, 2, 2, 2, 1, 0, 0, 0],
[0, 0, 0, 0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
],
colors: ['white', 'black', 'yellow']
}
let mario = {
matrix: [
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,1,1,1,1,1,1,0,0,0,0,0],
[0,0,0,1,1,1,1,1,1,1,1,1,1,0,0],
[0,0,0,2,2,2,3,3,3,4,3,0,0,0,0],
[0,0,2,3,2,3,3,3,3,4,3,3,3,0,0],
[0,0,2,3,2,2,3,3,3,3,4,3,3,3,0],
[0,0,2,2,3,3,3,3,3,4,4,4,4,0,0],
[0,0,0,0,3,3,3,3,3,3,3,3,0,0,0],
[0,0,0,1,1,5,1,1,1,1,0,0,0,0,0],
[0,0,1,1,1,5,1,1,5,1,1,1,0,0,0],
[0,1,1,1,1,5,5,5,5,1,1,1,1,0,0],
[0,3,3,1,5,6,5,5,6,5,1,3,3,0,0],
[0,3,3,3,5,5,5,5,5,5,3,3,3,0,0],
[0,3,3,5,5,5,5,5,5,5,5,3,3,0,0],
[0,0,0,5,5,5,0,0,5,5,5,0,0,0,0],
[0,0,2,2,2,0,0,0,2,2,2,0,0,0,0],
[0,2,2,2,2,0,0,0,2,2,2,2,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
],
colors: ['white', 'red', 'SaddleBrown', '#fabe8f', 'black', 'blue', 'yellow']
}
draw(apple.matrix, apple.colors);
draw(pacman.matrix, pacman.colors);
draw(mario.matrix, mario.colors);