float []x = {250,150,350,300};
float []y = {0,50,80,100};
float []vx = {0,0,0,0};
float []vy = {3,2,2,5,4};
boolean []dead = {false,false,false,false};
void setup()
{
size(500,600);
}
void draw()
{
background(255);
for(int i = 0;i < 4;i++)
{
if(dist(mouseX,mouseY,x[i],y[i]) <= 50)
{
dead[i] = true;
}
if(dead[i] == true) continue;
fill(255,255,0);
ellipse(x[i],y[i],50,50);
y[i] = y[i] + vy[i];
if(y[i] > 600) vy[i] = -vy[i];
if(y[i] < 0) vy[i] = - vy[i];
}
fill(255,0,0);
ellipse(mouseX,mouseY,50,50);
}
2.隨機反彈，碰到滑鼠消失
class Ball
{
float x,y,vx,vy;
boolean dead;
Ball()
{
x = random(500);
y = random(500);
vy = random(-4,4);
vx = random(-4,4);
dead = false;
}
void draw()
{
if(dead == true) return;
ellipse(x,y,50,50);
if(dist(mouseX,mouseY,x,y) < 50)
{
dead = true;
}
x = x + vx;
y = y + vy;
if(y > 500 || y < 0) vy = -vy;
if(x > 500 || x < 0) vx = -vx;
}
}
Ball []balls;
void setup()
{
size(500,500);
balls = new Ball[20];
for(int i = 0;i < 20;i++)
{
balls[i] = new Ball();
}
}
3.重力加速度
class Ball
{
float x,y,vx,vy;
boolean dead;
Ball()
{
reborn();
}
void reborn()
{
x = random(500);
y = random(500);
vy = random(-4,4);
vx = random(-4,4);
dead = false;
}
void draw()
{
if(dead == true) return;
ellipse(x,y,50,50);
if(dist(mouseX,mouseY,x,y) < 50)
{
dead = true;
}
x = x + vx;
y = y + vy;
vy += 0.98;
if(y > 500 || y < 0) vy = -vy;
if(x > 500 || x < 0) vx = -vx;
}
}
Ball []balls;
void setup()
{
size(500,500);
balls = new Ball[20];
for(int i = 0;i < 20;i++)
{
balls[i] = new Ball();
}
}
boolean gameOber = false;
void draw()
{
background(255);
for(int i = 0;i < 20;i++)
{
balls[i].draw();
}
}
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