最新回答 / supjtr
for(var i=0; i<this.num; i++){ if(this.alive[i]){ //draw this.r[i] += deltaTime*0.04; if(this.r[i]>50){ this.alive[i] = false; continue; } var alpha = 1 - this.r[i]/50; ctx1.beginPath(); ctx1.arc(this.x[i], this.y[i], this.r[i]...
2016-08-29