#author("2016-11-23T18:40:43+09:00","default:kyo-in","kyo-in") *連絡 [#ybce144a] アンケートの結果,予習希望多数でしたので予習を主体とした内容で進めます.もちろん補習では過去の内容の疑問点などの質問も受け付けます. *メソッド [#p512b428] 前回のプログラム例を示す. Ball ball0; final float GRAVITY = 9.8 / 60; final float ELAS = 0.98; void setup(){ size(500, 500); ball0 = new Ball(); ball0.x = width / 2; ball0.y = height / 2; ball0.vx = 10; ball0.vy = -10; ball0.d = 50; } void draw(){ background(255, 255, 255); moveBall(ball0); drawBall(ball0); } void moveBall(Ball b){ b.x += b.vx; b.vy += GRAVITY; b.y += b.vy; if (b.x < (b.d / 2)){ b.x = b.d / 2; b.vx = ELAS * -b.vx; } if (b.x > (width - (b.d / 2))){ b.x = width - (b.d / 2); b.vx = ELAS * -b.vx; } if (b.y > height - (b.d / 2)){ b.y = height - (b.d / 2); b.vy = ELAS * -b.vy; } } void drawBall(Ball b){ ellipse(b.x, b.y, b.d, b.d); } class Ball{ float x; float y; float vx; float vy; float d; }