point effecor 2d ๋ฅผ ์ด์šฉํ•˜๋ฉด ํญํƒ„ ํšจ๊ณผ๊ฐ™์ด ์˜ค๋ธŒ์ ํŠธ๋“ค์ด ๋ปฅ ๋‚ ๋ผ๊ฐ€๊ฒŒ ํ•œ๋‹ค๋Š”๊ฑธ ์•Œ์•˜์Œ


๊ทผ๋ฐ tree ๋ผ๋Š” ์˜ค๋ธŒ์ ํŠธ๊ฐ€ ์žˆ๋‹ค์น˜๊ณ  tree ์˜ค๋ธŒ์ ํŠธ๊ฐ€ ์žˆ๋Š” ์ง€์—ญ ๊ทผ์ฒ˜์— point effector 2d ๋ฅผ ๋ฐœ๋™์‹œํ‚ค๋ฉด,


tree ๊ฐ์ฒด๊ฐ€ ์–ผ๋งˆ๋งŒํผ์˜ ์ถฉ๊ฒฉ์„ ๋ฐ›์•˜๋Š”์ง€ ์•Œ์•„๋‚ด๋Š”๋ฒ• ์žˆ์Œ?