[英]Building a Calculator using p5.js
所以我只用p5.js構建一個計算器。 問題是我真的不知道如何開始從用戶那里獲得輸入,以及如何使它出現在顯示器中。 任何建議都非常感謝,謝謝! 到目前為止,這是我的JS:
function setup() {
createCanvas(windowWidth, windowHeight);
}
function draw() {
background(0);
strokeWeight(5);
stroke(255);
let h = windowHeight;
let w = windowWidth;
let w1 = w/2.5;
let w2 = w/10;
let h1 = h/7.5;
let h2 = h/13;
// WHITE BUTTON 0
if (mouseIsPressed && (mouseX > 0 && mouseX < w/5 && mouseY > h1*6.6 && mouseY < h)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(0, h1*6.6, w/5, h);
// WHITE BUTTON =
if (mouseIsPressed && (mouseX > w2*2 && mouseX < w/2.5 && mouseY > h1*6.6 && mouseY < h)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2*2, h1*6.6, w/5, h);
// WHITE BUTTON 1
if (mouseIsPressed && (mouseX > 0 && mouseX < w2 && mouseY > h1*5.6 && mouseY < h1*6.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(0, h1*5.6, w2, h1);
// WHITE BUTTON 2
if (mouseIsPressed && (mouseX > w2 && mouseX < w2*2 && mouseY > h1*5.6 && mouseY < h1*6.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2, h1*5.6, w2, h1);
// WHITE BUTTON 3
if (mouseIsPressed && (mouseX > w2*2 && mouseX < w2*3 && mouseY > h1*5.6 && mouseY < h1*6.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2*2, h1*5.6, w2, h1);
// WHITE BUTTON +
if (mouseIsPressed && (mouseX > w2*3 && mouseX < w2*4 && mouseY > h1*5.6 && mouseY < h1*6.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2*3, h1*5.6, w2, h1);
// WHITE BUTTON 4
if (mouseIsPressed && (mouseX > 0 && mouseX < w2 && mouseY > h1*4.6 && mouseY < h1*5.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(0, h1*4.6, w2, h1);
// WHITE BUTTON 5
if (mouseIsPressed && (mouseX > w2 && mouseX < w2*2 && mouseY > h1*4.6 && mouseY < h1*5.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2, h1*4.6, w2, h1);
// WHITE BUTTON 6
if (mouseIsPressed && (mouseX > w2*2 && mouseX < w2*3 && mouseY > h1*4.6 && mouseY < h1*5.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2*2, h1*4.6, w2, h1);
// WHITE BUTTON -
if (mouseIsPressed && (mouseX > w2*3 && mouseX < w2*4 && mouseY > h1*4.6 && mouseY < h1*5.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2*3, h1*4.6, w2, h1);
// WHITE BUTTON 7
if (mouseIsPressed && (mouseX > 0 && mouseX < w2 && mouseY > h1*3.6 && mouseY < h1*4.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(0, h1*3.6, w2, h1);
// WHITE BUTTON 8
if (mouseIsPressed && (mouseX > w2 && mouseX < w2*2 && mouseY > h1*3.6 && mouseY < h1*4.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2, h1*3.6, w2, h1);
// WHITE BUTTON 9
if (mouseIsPressed && (mouseX > w2*2 && mouseX < w2*3 && mouseY > h1*3.6 && mouseY < h1*4.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2*2, h1*3.6, w2, h1);
// WHITE BUTTON x
if (mouseIsPressed && (mouseX > w2*3 && mouseX < w2*4 && mouseY > h1*3.6 && mouseY < h1*4.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2*3, h1*3.6, w2, h1);
// WHITE BUTTON AC
if (mouseIsPressed && (mouseX > 0 && mouseX < w2*3 && mouseY > h1*2.6 && mouseY < h1*3.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(0, h1*2.6, w2*3, h1);
// WHITE BUTTON //
if (mouseIsPressed && (mouseX > w2*3 && mouseX < w2*4 && mouseY > h1*2.6 && mouseY < h1*3.6)) {
fill(255);
} else {
fill(0);
}
strokeWeight(0);
rect(w2*3, h1*2.6, w2, h1);
strokeWeight(5);
stroke(255);
line(0, h/6, w, h/6);
line(w1, h/6 + 1, w1, h);
line(w/1.5, h/6 + 1, w/1.5, h);
line(w/1.5, h/1.25, w, h/1.25);
line(0, h1*2 + h2, w1, h1*2 + h2);
line(0, h1*3 + h2, w1, h1*3 + h2);
line(0, h1*4 + h2, w1, h1*4 + h2);
line(0, h1*5 + h2, w1, h1*5 + h2);
line(0, h1*6 + h2, w1, h1*6 + h2);
line(w2, (h1*3) + h2, w2, h1*6 + h2);
line(w2*2, (h1*3) + h2, w2*2, h);
line(w2*3, (h1*2) + h2, w2*3, h1*6 + h2);
strokeWeight(0);
fill(255);
textSize(w/30);
textFont('Helvetica Bold')
text('CALCULATOR', (windowWidth/2) - (windowWidth/10), h/12);
textSize(w/20)
text('=', w2*2.85, h1*7.25);
textSize(w/30)
text('0', w2*0.9, h1*7.25);
text('1', w2*0.35, h1*6.25);
text('2', w2*1.4, h1*6.25);
text('3', w2*2.4, h1*6.25);
text('4', w2*0.35, h1*5.25);
text('5', w2*1.4, h1*5.25);
text('6', w2*2.4, h1*5.25);
text('7', w2*0.35, h1*4.25);
text('8', w2*1.4, h1*4.25);
text('9', w2*2.4, h1*4.25);
text('AC', w2*0.2, h1*3.25);
text('\xF7', w2*3.4, h1*3.25);
text('\xD7', w2*3.4, h1*4.25);
text('-', w2*3.425, h1*5.25);
text('+', w2*3.4, h1*6.25);
}
function windowResized() {
resizeCanvas(windowWidth, windowHeight);
}
我試過使用函數來定義第一個值,等等。但是我真的不知道如何使用它們。 我是Java語言的新手。
好了,您已經准備好了很多需要的東西,您已經有了點擊處理程序,因此當點擊0時:
if (mouseIsPressed && (mouseX > 0 && mouseX < w/5 && mouseY > h1*6.6 && mouseY < h)) { fill(255); } else { fill(0); } }
我要做的是為用戶輸入創建一個數組,用戶點擊的每個按鈕都將其添加到數組中
let userInput = []; // declared above the setup function
....
if (mouseIsPressed && (mouseX > 0 && mouseX < w/5 && mouseY > h1*6.6 && mouseY < h)) {
userInput.push(0); // add the nubmer to the array
fill(255);
} else {
fill(0);
}
然后,您可以在draw循環中遍歷該數組以將其輸出,例如:
let startX = 0;
for (let input of userInput) {
text(input, startX, 100);
startX += 10;
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.