week07
week07_01_arras01_backgound_fill_stroke_ellipse_rect_line
1.做出模樣
程式碼
///week07_01_arras01_backgound_fill_stroke_ellipse_rect_line
void setup(){
size(500,400);
}
float x=250,y=200;
void draw(){
background(215,184,200);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(240,160,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(x,y,55,55);
line(x,y,mouseX,mouseY);
}
week07_02_arras02_atan_sin_cos
1.用tan算出角度，做出凸凸
程式碼
///week07_01_arras02_atan_sin_cos
void setup(){
size(500,400);
}
float x=250,y=200;
void draw(){
background(215,184,200);
float dx=mouseX - x,dy = mouseY - y;
float a = atan2(dy,dx);
strokeWeight(20);
line(x,y,x+cos(a)*40,y+sin(a)*40);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(240,160,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(x,y,55,55);
//line(x,y,mouseX,mouseY);
}
week07_03_arras03_atan_angle_rotate_translate
1.函式依照參數宣告
2.旋轉對中心旋轉所以ellipse座標是00
3.rect調整>圖一>圖二
程式碼
///week07_03_arras03_atan_angle_rotate_translate
void setup(){
size(500,400);
}
float x=250,y=200;
void draw(){
background(215,184,200);
float dx=mouseX - x,dy = mouseY - y;
float a = atan2(dy,dx);
line(x,y,mouseX,mouseY);
mytank(x,y,a);
}
void mytank(float x,float y,float a) {
translate(x,y);
rotate(a);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(20,-10,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(0,0,55,55);
}
week07_04_arras04_background_for_line_line_void_keyPressed_keycode
1.上下左右
2. 下次中心不動
程式碼
///week07_04_arras04_background_for_line_line_void_keyPressed_keycode
void setup(){
size(500,400);
}
void keyPressed(){
if(keyCode==RIGHT) x+=1;
if(keyCode==LEFT) x-=1;
if(keyCode==UP) y-=1;
if(keyCode==DOWN) y+=1;
}
float x=250,y=200;
void draw(){
background(219);
stroke(210);
strokeWeight(1);
for(int i=0;i<30;i++) {
line(0,i*30,500,i*30);
line(i*30,0,i*30,500);
}
float dx=mouseX - x,dy = mouseY - y;
float a = atan2(dy,dx);
line(x,y,mouseX,mouseY);
mytank(x,y,a);
}
void mytank(float x,float y,float a) {
translate(x,y);
rotate(a);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(20,-10,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(0,0,55,55);
}
week07_05_arras05_correct_move_translate_mx_my
1.背景移動，本體在螢幕中間
程式碼
///week07_05_arras05_correct_move_translate_mx_my
void setup(){
size(500,400);
}
void keyPressed(){
if(keyCode==RIGHT) x+=1;
if(keyCode==LEFT) x-=1;
if(keyCode==UP) y-=1;
if(keyCode==DOWN) y+=1;
}
float x=250,y=200;
void draw(){
background(219);
translate(-x,-y);
translate(width/2,height/2);
float mx = mouseX+x-width/2,my = mouseY+y-height/2;
ellipse(mx,my,8,8);
stroke(210);
strokeWeight(1);
for(int i=0;i<30;i++) {
line(0,i*30,500,i*30);
line(i*30,0,i*30,500);
}
float dx=mx-x,dy = my-y;
float a = atan2(dy,dx);
line(x,y,mx,my);
mytank(x,y,a);
}
void mytank(float x,float y,float a) {
translate(x,y);
rotate(a);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(20,-10,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(0,0,55,55);
}
week07_06_arras06_vx_vy_keyPressed_void_keyReleased_void_draw
1.想辦法提高移動速度，keypressed每秒次數加快
程式碼
///week07_06_arras06_vx_vy_keyPressed_void_keyReleased_void_draw
void setup(){
size(500,400);
}
void keyPressed(){
if(keyCode==RIGHT) vx= 1;
if(keyCode==LEFT) vx= -1;
if(keyCode==UP) vy= -1;
if(keyCode==DOWN) vy= 1;
}
void keyReleased(){
if(keyCode==LEFT || keyCode==RIGHT) vx=0;
if(keyCode==UP || keyCode==DOWN) vy=0;
}
float x=250,y=200,vx=0,vy=0;
void draw(){
x += vx;
y += vy;
background(219);
translate(-x,-y);
translate(width/2,height/2);
float mx = mouseX+x-width/2,my = mouseY+y-height/2;
ellipse(mx,my,8,8);
stroke(210);
strokeWeight(1);
for(int i=0;i<30;i++) {
line(0,i*30,500,i*30);
line(i*30,0,i*30,500);
}
float dx=mx-x,dy = my-y;
float a = atan2(dy,dx);
line(x,y,mx,my);
mytank(x,y,a);
}
void mytank(float x,float y,float a) {
translate(x,y);
rotate(a);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(20,-10,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(0,0,55,55);
}
week07_07_arras07_angle_bulletX_Y_VX_VY
1.射出子彈
程式碼
///week07_07_arras07_angle_bulletX_Y_VX_VY
void setup(){
size(500,400);
}
float angle,bulletX=0,bulletY=0,bulletVX=0,bulletVY=0;
void mousePressed(){
bulletX=x;
bulletY=y;
bulletVX = cos(angle);
bulletVY = sin(angle);
}
void keyPressed(){
if(keyCode==RIGHT) vx= 1;
if(keyCode==LEFT) vx= -1;
if(keyCode==UP) vy= -1;
if(keyCode==DOWN) vy= 1;
}
void keyReleased(){
if(keyCode==LEFT || keyCode==RIGHT) vx=0;
if(keyCode==UP || keyCode==DOWN) vy=0;
}
float x=250,y=200,vx=0,vy=0;
void draw(){
x += vx;
y += vy;
background(219);
translate(-x,-y);
translate(width/2,height/2);
float mx = mouseX+x-width/2,my = mouseY+y-height/2;
ellipse(mx,my,8,8);
stroke(210);
strokeWeight(1);
for(int i=0;i<30;i++) {
line(0,i*30,500,i*30);
line(i*30,0,i*30,500);
}
float dx=mx-x,dy = my-y;
float a = atan2(dy,dx);
angle = a;
line(x,y,mx,my);
pushMatrix();
mytank(x,y,a);
popMatrix();
if(bulletX!=0 && bulletY!=0) {
bulletX += bulletVX;
bulletY += bulletVY;
ellipse(bulletX,bulletY,20,20);
}
}
void mytank(float x,float y,float a) {
translate(x,y);
rotate(a);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(20,-10,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(0,0,55,55);
}
week07_08_arras08_array_many_bullet
1.用陣列解決只有一顆子彈的問題
2.只有100個子彈
程式碼
///week07_08_arras08_array_many_bullet
void setup(){
size(500,400);
}
float angle;
int bulletN = 0;
float [] bulletX=new float[100];
float [] bulletY=new float[100];
float [] bulletVX=new float[100];
float [] bulletVY=new float[100];
void mousePressed(){
int i = bulletN;
bulletX[i]=x;
bulletY[i]=y;
bulletVX[i] = cos(angle);
bulletVY[i] = sin(angle);
bulletN++;
}
void keyPressed(){
if(keyCode==RIGHT) vx= 1;
if(keyCode==LEFT) vx= -1;
if(keyCode==UP) vy= -1;
if(keyCode==DOWN) vy= 1;
}
void keyReleased(){
if(keyCode==LEFT || keyCode==RIGHT) vx=0;
if(keyCode==UP || keyCode==DOWN) vy=0;
}
float x=250,y=200,vx=0,vy=0;
void draw(){
x += vx;
y += vy;
background(219);
translate(-x,-y);
translate(width/2,height/2);
float mx = mouseX+x-width/2,my = mouseY+y-height/2;
ellipse(mx,my,8,8);
stroke(210);
strokeWeight(1);
for(int i=0;i<30;i++) {
line(0,i*30,500,i*30);
line(i*30,0,i*30,500);
}
float dx=mx-x,dy = my-y;
float a = atan2(dy,dx);
angle = a;
line(x,y,mx,my);
pushMatrix();
mytank(x,y,a);
popMatrix();
for(int i=0;i<bulletN;i++) {
bulletX[i] += bulletVX[i];
bulletY[i] += bulletVY[i];
ellipse(bulletX[i],bulletY[i],20,20);
}
}
void mytank(float x,float y,float a) {
translate(x,y);
rotate(a);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(20,-10,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(0,0,55,55);
}
week07_09_arras09_recycle_bullet_move
1.解決子彈上限問題
程式碼
///week07_09_arras09_recycle_bullet_move
void setup(){
size(500,400);
}
float angle;
int bulletN = 0;
float [] bulletX=new float[100];
float [] bulletY=new float[100];
float [] bulletVX=new float[100];
float [] bulletVY=new float[100];
void mousePressed(){
int i = bulletN;
bulletX[i]=x;
bulletY[i]=y;
bulletVX[i] = cos(angle);
bulletVY[i] = sin(angle);
bulletN++;
if(bulletN==100) {
for(int k=0;k<50;k++) {
bulletX[k]=bulletX[k+50];
bulletY[k]=bulletY[k+50];
bulletVX[k] = bulletVX[k+50];
bulletVY[k] = bulletVY[k+50];
}
bulletN = 50;
}
println(bulletN);
}
void keyPressed(){
if(keyCode==RIGHT) vx= 1;
if(keyCode==LEFT) vx= -1;
if(keyCode==UP) vy= -1;
if(keyCode==DOWN) vy= 1;
}
void keyReleased(){
if(keyCode==LEFT || keyCode==RIGHT) vx=0;
if(keyCode==UP || keyCode==DOWN) vy=0;
}
float x=250,y=200,vx=0,vy=0;
void draw(){
x += vx;
y += vy;
background(219);
translate(-x,-y);
translate(width/2,height/2);
float mx = mouseX+x-width/2,my = mouseY+y-height/2;
ellipse(mx,my,8,8);
stroke(210);
strokeWeight(1);
for(int i=0;i<30;i++) {
line(0,i*30,500,i*30);
line(i*30,0,i*30,500);
}
float dx=mx-x,dy = my-y;
float a = atan2(dy,dx);
angle = a;
line(x,y,mx,my);
pushMatrix();
mytank(x,y,a);
popMatrix();
for(int i=0;i<bulletN;i++) {
bulletX[i] += bulletVX[i];
bulletY[i] += bulletVY[i];
ellipse(bulletX[i],bulletY[i],20,20);
}
}
void mytank(float x,float y,float a) {
translate(x,y);
rotate(a);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(20,-10,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(0,0,55,55);
}
week07_10_arras010_bullet_for_height_die
1.做出子彈的壽命
程式碼
///week07_10_arras010_bullet_for_height_die
void setup(){
size(500,400);
}
float angle;
int bulletN = 0;
float [] bulletX=new float[100];
float [] bulletY=new float[100];
float [] bulletVX=new float[100];
float [] bulletVY=new float[100];
float [] bulletT=new float[100];
void mousePressed(){
int i = bulletN;
bulletX[i]=x;
bulletY[i]=y;
bulletVX[i] = cos(angle);
bulletVY[i] = sin(angle);
bulletT[i] = 600;
bulletN++;
if(bulletN==100) {
for(int k=0;k<50;k++) {
bulletX[k]=bulletX[k+50];
bulletY[k]=bulletY[k+50];
bulletVX[k] = bulletVX[k+50];
bulletVY[k] = bulletVY[k+50];
}
bulletN = 50;
}
println(bulletN);
}
void keyPressed(){
if(keyCode==RIGHT) vx= 1;
if(keyCode==LEFT) vx= -1;
if(keyCode==UP) vy= -1;
if(keyCode==DOWN) vy= 1;
}
void keyReleased(){
if(keyCode==LEFT || keyCode==RIGHT) vx=0;
if(keyCode==UP || keyCode==DOWN) vy=0;
}
float x=250,y=200,vx=0,vy=0;
void draw(){
x += vx;
y += vy;
background(219);
translate(-x,-y);
translate(width/2,height/2);
float mx = mouseX+x-width/2,my = mouseY+y-height/2;
ellipse(mx,my,8,8);
stroke(210);
strokeWeight(1);
for(int i=0;i<30;i++) {
line(0,i*30,500,i*30);
line(i*30,0,i*30,500);
}
float dx=mx-x,dy = my-y;
float a = atan2(dy,dx);
angle = a;
line(x,y,mx,my);
pushMatrix();
mytank(x,y,a);
popMatrix();
for(int i=0;i<bulletN;i++) {
bulletX[i] += bulletVX[i];
bulletY[i] += bulletVY[i];
ellipse(bulletX[i],bulletY[i],20,20);
bulletT[i] --;
if(bulletT[i]==0) {
for(int k=i+1;k<bulletN;k++) {
bulletX[k-1] = bulletX[k];
bulletY[k-1] = bulletY[k];
bulletVX[k-1] = bulletVX[k];
bulletVY[k-1] = bulletVY[k];
bulletT[k-1] = bulletT[k];
}
bulletN --;
}
}
println(bulletN);
}
void mytank(float x,float y,float a) {
translate(x,y);
rotate(a);
fill(167,167,175);
stroke(110,110,113);
strokeWeight(4);
rect(20,-10,20,20);
fill(204,102,156);
stroke(125,84,105);
strokeWeight(3);
ellipse(0,0,55,55);
}
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