[Javascript] Sinã¨Cosã®èª¤å·®ç™ºç”Ÿã«ã¤ã„ã¦ã“ã‚Œã«æ°—ãŒä»˜ã„ãŸã®ãŒã€Javascriptã§ã‚ャラクターを角度指定ã§ã¨ã‚Šã‚ãˆãšä¸Šä¸‹ã«å‹•ã‹ã™ã‚ˆã†ã«ä½œæˆã—ã¦ã„ãŸæ™‚ã«ã€ä¸‹æ–¹å‘ã‹ã‚‰å転ã—ã¦ä¸Šæ–¹å‘ã«ç§»å‹•ã—ãŸã¨ãŸã‚“ã«ã€ã‚ャラクターãŒæ¨ªæ–¹å‘ã«å‹•ã„ã¦ã—ã¾ã£ãŸã‹ã‚‰ã§ã™ã€‚ Chromeã§ãƒ‡ãƒãƒƒã‚°ã—ã¦ã¿ã‚‹ã¨ã€COSãŒ270度ã®æ™‚ã«æœ¬æ¥0を想定ã—ã¦ã„ãŸã®ã«ã€-1.836909530733566e-16ã¨ã„ã†å€¤ãŒè¿”ã£ã¦ããŸãŸã‚ã«ã€x<0ã®æ¡ä»¶ã§ã€è§’度ãŒ-90度ã•ã‚Œã¦180度ã®å‹•ãã«ãªã£ã¦ã—ã¾ã£ãŸã®ã§ã™ã€‚ function moveFish(no){ // 移動é‡ã‚’求ã‚ã‚‹ var rot = fish[no].ang; var sp = fish[no].speed; dx = Math.cos(rot * Math.PI / 180) * sp; dy = Math.sin(rot * Math.PI / 180) * sp; fish[no].x += dx;
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