碰撞偵測
Step1 牛頓力學
程式碼:
///碰撞偵測 void setup(){ size(400,400); } float x=200,y=200,vx=1,vy=1; void draw(){ ellipse(x,y,10,10); x+=vx; y+=vy; } 執行圖:
Step2 靜者恆靜，動者恆動, f=ma
程式碼:
///碰撞偵測 void setup(){ size(400,400); } float x=50,y=250,vx=2,vy=-20; void draw(){ ellipse(x,y,10,10); x+=vx; y+=vy; vy += 0.98;//重力加速度 } 執行圖:Step3 if判斷落點程式碼:///碰撞偵測 void setup(){ size(400,400); } float x=50,y=250,vx=2,vy=-20; void draw(){ ellipse(x,y,10,10); x+=vx; y+=vy; vy += 0.98;//重力加速度 if(y>350){ y=350; } ellipse(x,y,10,10); } 執行圖:Step3-2 給予能量耗損程式碼:///碰撞偵測 void setup(){ size(400,400); } float x=50,y=250,vx=2,vy=-20; void draw(){ ellipse(x,y,10,10); x+=vx; y+=vy; vy += 0.98;//重力加速度 if(y>350){ y=350; vy = -vy * 0.5; //能量耗損、速度變慢 } ellipse(x,y,10,10); } 執行圖:Step4 馬力歐移動製作 keyPressed程式碼:///碰撞偵測 void setup(){ size(400,400); } float marioX=50,marioY=250,vx=2,vy=-20; void draw(){ background(108,137,255); marioX += vx; fill(255,0,0);ellipse(marioX,marioY,15,25); fill(229,119,42);rect(0,260,400,150); } void keyPressed(){ if(keyCode==RIGHT) vx=2; if(keyCode==LEFT) vx=-2; } 執行圖Step5 馬力歐移動製作 Released 往上程式碼:///碰撞偵測 void setup(){ size(400,400); } float marioX=50,marioY=250,vx=2,vy=-20; void draw(){ background(108,137,255); marioX += vx; marioY += vy; fill(255,0,0);ellipse(marioX,marioY,15,25); fill(229,119,42);rect(0,260,400,150); } void keyPressed(){ if(keyCode==RIGHT) vx=2; if(keyCode==LEFT) vx=-2; if(keyCode==UP)vy=-20; } void keyReleased(){ if(keyCode==LEFT || keyCode == RIGHT)vx=0; } 執行圖:Step6 馬力歐跳躍程式碼:///碰撞偵測 void setup(){ size(400,400); } float marioX=50,marioY=250,vx=2,vy=-20; void draw(){ background(108,137,255); marioX += vx; if(flying){ marioY += vy;//上下的位置會改變 vy+=0.98; if(marioY >=250){ marioY=250; flying = false; } } fill(255,0,0);ellipse(marioX,marioY,15,25); fill(229,119,42);rect(0,260,400,150); } boolean flying=false; void keyPressed(){ if(keyCode==RIGHT) vx=2; if(keyCode==LEFT) vx=-2; if(keyCode==UP){ vy=-20; flying = true; } } void keyReleased(){ if(keyCode==LEFT || keyCode == RIGHT)vx=0; } 執行圖:Step7 馬力歐跳躍程式碼:///碰撞偵測 void setup(){ size(400,400); } float marioX=50,marioY=250,vx=2,vy=-20; void draw(){ background(108,137,255); marioX += vx; if(flying){ marioY += vy;//上下的位置會改變 vy+=0.98; if(marioY >=250){ marioY=250; flying = false; } } fill(255,0,0);ellipse(marioX,marioY,15,20); fill(229,119,42);rect(0,260,400,150); fill(229,119,42);rect(200,150,20,20); if(hitBox(200,150,20,20)){ vy = 0; marioY= 150+20; } } boolean hitBox(int x,int y,int w,int h){ if(x<marioX && marioX < x+w && y<marioY && marioY<y+h)return true; else return false; } boolean flying=false; void keyPressed(){ if(keyCode==RIGHT) vx=2; if(keyCode==LEFT) vx=-2; if(keyCode==UP && flying == false){ vy=-20; flying = true; } } void keyReleased(){ if(keyCode==LEFT || keyCode == RIGHT)vx=0; } 執行圖:Step8 馬力歐碰撞程式碼:///碰撞偵測 void setup(){ size(400,400); } float marioX=50,marioY=250,vx=2,vy=-20; void draw(){ background(108,137,255); marioX += vx; if(flying){ marioY += vy;//上下的位置會改變 vy+=0.98; if(marioY >=250){ marioY=250; flying = false; } } fill(255,0,0);ellipse(marioX,marioY,15,20); fill(229,119,42);rect(0,260,400,150); fill(229,119,42);rect(200,150,20,20); if(hitBox(200,150,20,20)){ if(vy>0){ marioY=150-10; flying=false; }else{ vy = 0; marioY= 150+20+10; } } } boolean hitBox(int x,int y,int w,int h){ if(x-7<marioX && marioX < x+w+7 && y-10<marioY && marioY<y+h+10)return true; else return false; } boolean flying=false; void keyPressed(){ if(keyCode==RIGHT) vx=2; if(keyCode==LEFT) vx=-2; if(keyCode==UP && flying == false){ vy=-20; flying = true; } } void keyReleased(){ if(keyCode==LEFT || keyCode == RIGHT)vx=0; }執行圖:Step9 讓馬力歐跳到方塊後能掉落程式碼:///碰撞偵測 void setup(){ size(400,400); } float marioX=50,marioY=250,vx=2,vy=-20; void draw(){ background(108,137,255); marioX += vx; if(flying){ marioY += vy;//上下的位置會改變 vy+=0.98; if(marioY >=250){ marioY=250; flying = false; } } fill(255,0,0);ellipse(marioX,marioY,15,20); fill(229,119,42);rect(0,260,400,150); fill(229,119,42);rect(200,150,20,20); if(hitBox(200,150,20,20)){ if(vy>0){ marioY=150-10; flying = false; stand_box = true; }else{ vy = 0; marioY= 150+20+10; } } if(stand_box == true && flying == false && leaveBox(200,150,20,20)){ stand_box = false; flying = true; vy=0; } } boolean leaveBox(int x,int y,int w,int h){ if(x-7>marioX || marioX > x+w+7)return true; else return false; } boolean hitBox(int x,int y,int w,int h){ if(x-7<marioX && marioX < x+w+7 && y-10<marioY && marioY<y+h+10)return true; else return false; } boolean flying=false,stand_box=false; void keyPressed(){ if(keyCode==RIGHT) vx=2; if(keyCode==LEFT) vx=-2; if(keyCode==UP && flying == false){ vy=-20; flying = true; } } void keyReleased(){ if(keyCode==LEFT || keyCode == RIGHT)vx=0; } 執行圖:Step10 製造更多 碰撞箱方塊程式碼:///碰撞偵測 void setup(){ size(400,400); } float marioX=50,marioY=250,vx=2,vy=-20; void draw(){ background(108,137,255); marioX += vx; if(flying){ marioY += vy;//上下的位置會改變 vy+=0.98; if(marioY >=250){ marioY=250; flying = false; } } fill(255,0,0);ellipse(marioX,marioY,15,20); fill(229,119,42);rect(0,260,400,150); drawAndTextBox(200,150,20,20); drawAndTextBox(150,100,20,20); } void drawAndTextBox(int x,int y,int w,int h){ fill(229,119,42);rect(x,y,w,h); if(hitBox(x,y,w,h)){ if(vy>0){ marioY=y-10; flying = false; stand_box = true; }else{ vy = 0; marioY= y+h+10; } } if(stand_box == true && flying == false && leaveBox(x,y,w,h)){ stand_box = false; flying = true; vy=0; } } boolean leaveBox(int x,int y,int w,int h){ if(x-7>marioX || marioX > x+w+7)return true; else return false; } boolean hitBox(int x,int y,int w,int h){ if(x-7<marioX && marioX < x+w+7 && y-10<marioY && marioY<y+h+10)return true; else return false; } boolean flying=false,stand_box=false; void keyPressed(){ if(keyCode==RIGHT) vx=2; if(keyCode==LEFT) vx=-2; if(keyCode==UP && flying == false){ vy=-20; flying = true; stand_box = false;///現在有2個以上變數處理 ! } } void keyReleased(){ if(keyCode==LEFT || keyCode == RIGHT)vx=0; }執行圖:
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