英文:
How can i register when text and shapes has been clicked on?
问题
rect(x, y, 100, 100)
text("点击这里", 50, 50)
英文:
rect(x, y, 100, 100)
text("click here", 50, 50)
Is there a way to use mousePressed() so it registers when these two items have been clicked on?
答案1
得分: 1
这似乎是关于碰撞检测的问题。具体来说，你可能正在寻找点-矩形碰撞检测，以确定鼠标是否在矩形内部。
谷歌是你的朋友，但这里有一个示例：
float rectX;
float rectY;
float rectWidth;
float rectHeight;
void setup() {
size(300, 300);
rectX = 50;
rectY = 100;
rectWidth = 200;
rectHeight = 100;
}
void draw() {
background(64);
if (mouseX > rectX && mouseX < rectX + rectWidth && mouseY > rectY && mouseY < rectY + rectHeight) {
fill(255, 0, 0);
}
else {
fill(0, 255, 0);
}
rect(rectX, rectY, rectWidth, rectHeight);
}
不怕自荐：这里有一个关于Processing中碰撞检测的教程。
英文:
It sounds like you're looking for collision detection. Specifically, you're probably looking for point-rectangle collision detection, to determine whether the mouse is inside a rectangle.
Google is your friend, but here's an example:
float rectX;
float rectY;
float rectWidth;
float rectHeight;
void setup() {
size(300, 300);
rectX = 50;
rectY = 100;
rectWidth = 200;
rectHeight = 100;
}
void draw() {
background(64);
if (mouseX > rectX && mouseX < rectX + rectWidth && mouseY > rectY && mouseY < rectY + rectHeight) {
fill(255, 0, 0);
}
else {
fill(0, 255, 0);
}
rect(rectX, rectY, rectWidth, rectHeight);
}
Shameless self-promotion: here is a tutorial on collision detection in Processing.
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