week15_01_circle_collision_class_Ball_new_Ball_display
void setup(){
size(640,360);
}
Ball ball=new Ball(100,200,20);
void draw(){
ball.display();
}
class Ball{
float x,y,r;
Ball(int x0,int y0,int r0){
x=x0;
y=y0;
r=r0;
}
void display(){
ellipse(x,y,r+r,r+r);
}
}
wee15_02_circle_collision_class_Ball_update
void setup(){
size(640,360);
}
Ball ball=new Ball(100,200,20);
void draw(){
ball.display();
}
//把class Ball 移到右邊的新的分業(名字也叫Ball)
class Ball{
float x,y,r;
float vx,vy;
Ball(int x0,int y0,int r0){
x=x0;
y=y0;
r=r0;
vx=random(-10,+10);
vy=random(-10,+10);
}
void update(){
if(x+vx>640||x+vx<0)vx=-vx;
if(y+vy<0||y+vy<0)vx=-vx;
x+=vx;
y+=vy;
}
void display(){
ellipse(x,y,r+r,r+r);
}
}
week15_03_circle_collision_class_Ball_update
void setup(){
size(640,360);
}
Ball ball=new Ball(100,200,60);
Ball ball2=new Ball(300,200,60);
void draw(){
background(51);
if(ball.checkCollision(ball2))fill(#FFAAAA);
else fill(255);
ball.update();
ball.display();
ball2.update();
ball2.display();
}
class Ball{
float x,y,r;
float vx,vy;
Ball(int x0,int y0,int r0){
x=x0;
y=y0;
r=r0;
vx=random(-10,+10);
vy=random(-10,+10);
}
boolean checkCollision(Ball other){
if(dist(x,y,other.x,other.y)<r+other.r)return true;
else return false;
}
void update(){
if(x+vx>640||x+vx<0)vx=-vx;
if(y+vy<0||y+vy<0)vx=-vx;
x+=vx;
y+=vy;
}
void display(){
ellipse(x,y,r+r,r+r);
}
}
week15_04_circle_collision_cos_sin_vector_N_N2_M_M2_swap
void setup(){
size(640,360);
}
Ball ball=new Ball(100,200,60);
Ball ball2=new Ball(300,200,60);
void draw(){
background(51);
if(ball.checkCollision(ball2))fill(#FFAAAA);
else fill(255);
ball.update();
ball.display();
ball2.update();
ball2.display();
}
class Ball{
float x,y,r;
float vx,vy;
Ball(int x0,int y0,int r0){
x=x0;
y=y0;
r=r0;
vx=random(-10,+10);
vy=random(-10,+10);
}
boolean checkCollision(Ball other){
if(dist(x,y,other.x,other.y)<r+other.r){
PVector diff = new PVector(other.x-x,other.y-y);
float len = diff.mag();
print(len);
float a=diff.heading();
PVector N=diff.copy().normalize();
N.mult(N.dot(new PVector(vx,vy)));
PVector N2=new PVector(-N.y,N.x).normalize();
N2.mult(N2.dot(new PVector(vx,vy)));
PVector M=diff.copy().normalize();
M.mult(M.dot(new PVector(other.vx,other.vy)));
PVector M2=new PVector(-M.y,M.x).normalize();
M2.mult(M2.dot(new PVector(other.vx,other.vy)));
PVector newV1=PVector.add(M,N2);
PVector newV2=PVector.add(N,M2);\vx=newV1.x;
vy=newV1.y;
other.vx=newV2.x;
other.vy=newV2.y;
return true;
}
else return false;
}
void update(){
if(x+vx>640||x+vx<0)vx=-vx;
if(y+vy<0||y+vy<0)vx=-vx;
x+=vx;
y+=vy;
}
void display(){
ellipse(x,y,r+r,r+r);
}
}
week15_05_maze_DFS
int [][] maze={
{1,1,1,1,1,1,1,1,1,1},
{1,0,0,0,1,0,0,0,1,1},
{1,1,0,1,1,0,1,0,1,1},
{1,1,0,0,1,0,1,0,1,1},
{1,1,1,0,0,0,1,0,1,1},
{1,0,1,1,0,1,1,0,1,1},
{1,0,0,0,0,1,1,0,1,1},
{1,0,1,1,1,1,1,0,0,1},
{1,0,0,0,0,0,1,0,0,1},
{1,1,1,1,1,1,1,1,1,1},
};
void setup(){
size(400,400);
}
void draw(){
for(int i=0;i<maze.length;i++){
for(int j=0;j<maze[0].length;j++){
if(maze[i][j]==1) fill(0);
else fill(255);
rect(j*40,i*40,40,40);
}
}
}
week15_06_maze_DFS_visited
int [][] maze={
{1,1,1,1,1,1,1,1,1,1},
{1,0,0,0,1,0,0,0,1,1},
{1,1,0,1,1,0,1,0,1,1},
{1,1,0,0,1,0,1,0,1,1},
{1,1,1,0,0,0,1,0,1,1},
{1,0,1,1,0,1,1,0,1,1},
{1,0,0,0,0,1,1,0,1,1},
{1,0,1,1,1,1,1,0,0,1},
{1,0,0,0,0,0,1,0,0,1},
{1,1,1,1,1,1,1,1,1,1},
};
int [][] visited=new int[10][10];
int startI=1,startJ=1,I=1,J=1,step=1;
void setup(){
size(400,400);
visited[I][J]=step;
}
void draw(){
for(int i=0;i<maze.length;i++){
for(int j=0;j<maze[0].length;j++){
if(maze[i][j]==1) fill(0);
else fill(255);
rect(j*40,i*40,40,40);
}
}
fill(255,0,0);
rect(startJ*40,startI*40,40,40);
}
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