ϒϩοΫνΣʔϯήʔϜ։ൃͷऔΓ૊Έ Yuki Takeda GameWith Engineer Meetup #1 2018.08.21 

2 ࣗݾ঺հ @takepon_phd • ത࢜ʢ޻ֶʣ • ݚڀ։ൃͱ͔৽نࣄۀͱ͔ʹͩ͜ΘΔ • ̎̌̍̔೥݄̓GameWithೖࣾ • R&DΤϯδχΞ • ϒϩοΫνΣʔϯήʔϜͷ։ൃ୲౰ • લ৬ • ҹ࡮ۀք • ݚڀ։ൃ৬: CG/CV/AR, AI&Robot 

ͳͥϒϩοΫνΣʔϯͳͷ͔ 2 1 3 ήʔϜ × ϒϩοΫνΣʔϯ ϒϩοΫνΣʔϯήʔϜ։ൃ 

4 ϒϩοΫνΣʔϯͷظ଴ײ 

͋͞ɺ๻Βͷ൪ͩ 5 

6 ήʔϜ × ϒϩοΫνΣʔϯ ήʔϜʹϒϩοΫνΣʔϯ͕૊Έ߹Θͬͯ͞ɺϢʔβʔ͕ήʔϜͷΞΠςϜ΍σʔλΛσδλϧΞ ηοτͱͯ͠ॴ༗Ͱ͖ΔΑ͏ʹͳΔͱɺଟ͘ͷਓ͕ʮήʔϜΛ࢓ࣄʹʯͰ͖ΔՄೳੑ͕͋ΔΜ͡Ό ͳ͍͔ͱࢥ͍ͬͯ·͢ɻྫ͑͹..031(ͷΑ͏ͳήʔϜͰɺ೔ʹݸ͔͠υϩοϓ͞Εͳ͍ΞΠ ςϜ͕͋ͬͨͱͯ͠ɺͦΕΛखʹೖΕΔͨΊʹήʔϜΛ͢ΔɻखʹೖΕͨϢʔβʔ͸ͦͷΞΠςϜ Λॴ༗͢Δ͜ͱ͕Ͱ͖Δʢར༻΋Ͱ͖Δ͚Ͳوॏੑ͕ߴ͍ʣɻҰํͦͷΞΠςϜ͕ཉ͔͚ͬͨ͠Ͳɺ खʹೖΒͳ͔ͬͨਓɺ๩ͯ͘͠ήʔϜ͢Δ͕࣌ؒͳ͔ͬͨਓ͕ΞΠςϜΛߪೖ͍ͨ͠ͱͳͬͨΒɺ ͦ͜ʹधཁ͕ੜ·ΕΔΘ͚Ͱ͢ΑͶɻͭ·ΓσδλϧͳΞΠςϜʹରͯ͠஋ஈ͕ͭ͘ɻϢʔβʔ͸ ͜ͷചങΛ௨ͯ͠ऩೖΛಘΔ͜ͱ͕Ͱ͖ͨΒจࣈ௨ΓʮήʔϜ͕࢓ࣄʯʹͳΓ·͢ɻ GameWith MAGAZINE - ήʔϜ͕࢓ࣄʹͳΔੈքʁϒϩοΫνΣʔϯ͕΋ͨΒ͢ήʔϜ΁ͷӨڹͱ͸ https://magazine.gamewith.co.jp/article/interview_imaizumi/ ϒϩοΫνΣʔϯʹΑͬͯσδλϧσʔλͷॴ༗ݖΛ࣋ͭ͜ͱ͕Ͱ͖Δɻ ྫʣԾ૝௨՟ɺ̍̏̌̌ສԁͷೣ(CryptoKitties) 

7 εϚϗήʔϜͱϒϩοΫνΣʔϯήʔϜͷҧ͍ ήʔϜఏڙଆ ήʔϜϢʔβଆ ϒϩοΫνΣʔϯ ΞΠςϜऔҾ ϓϨΠ৘ใ ϓϨΠ৘ใ ɹεϚϗήʔϜ ɹϒϩοΫνΣʔϯήʔϜ ॴ༗ݖมߋ 

ϛογϣϯɿήʔϜΛΑΓָ͠ΊΔੈքΛ૑Δ
Why? ήʔϜσʔλΛྲྀ௨Ͱ͖Δະདྷʹ޲͚ͨϏδωεϞσϧΛߏங What? ͝ظ଴͍ͩ͘͞ʂ How? ϕετϓϥΫςΟεͷ͝঺հ ௚໘͍ͯ͠Δ՝୊ 8 ϒϩοΫνΣʔϯήʔϜ։ൃ 

Solidity: Ethereum্Ͱಈ࡞͢Δ෼ࢄܕΞϓϦέʔγϣϯ(Dapps: Decentralized Apps)Λ։ ൃ͢ΔͨΊͷ։ൃݴޠɻJavascriptϥΠΫͳจ๏ͰίʔσΟϯάͰ͖Δɻ 9 ϓϩάϥϜಈ࡞֓ཁ ΞΠςϜऔҾ ϓϨΠ৘ใ ॴ༗ݖมߋ 4PMJEJUZίʔυ &7. DPNQJMF

NJHSBUF ΫϥΠΞϯτϥΠϒϥϦ
+BWBTDSJQU(PQZUIPO+BWB3VCZʜ DBMM  4PMJEJUZίʔυΛίϯύΠϧͯ͠ɺόΠφϦίʔυΛ&7. &UIFSFVN
7JSUVBM
.BDIJOF ʹϚΠάϨʔτ͢Δɻ
 αʔόαΠυ͔Β&UIFSFVNΫϥΠΞϯτϥΠϒϥϦΛར༻ͯ͠ఆٛͨؔ͠਺Λίʔϧ͢Δɻ 

10 ։ൃϑϨʔϜϫʔΫ INFURA ɾίϯύΠϥ
ɾࣗಈςετ
ɾςετ؀ڥʢϓϥΠϕʔτωοτʣ ɾϗεςΟϯά
ɹςετωοτϝΠϯωοτ ɾศརϥΠϒϥϦ ϩʔΧϧ؀ڥ ύϒϦοΫ؀ڥ Geth ӡ༻؀ڥ ɾΠʔαϦΞϜΫϥΠΞϯτ
ɹ (PFUIFSFVN Truffle + OpenZeppelin + INFURA + Geth σϓϩΠઌ͸̏ͭɿϓϥΠϕʔτωοτɺςετωοτɺϝΠϯωοτ 

ɾϒϩοΫνΣʔϯʹॻ͖ࠐ·ΕΔ·ͰʹλΠϜϥά͕͋Δɻ(Ethereum: 15ඵఔ౓) ɹॻ͖ࠐ·ΕΔ·Ͱͷ଴͕ͪ࣌ؒ͋ΔલఏͰɺUIΛͲ͏ݟͤΕ͹͍͍͔ʁ ɾϒϩοοΫνΣʔϯʹॻ͖ࠐΉ౓ʹख਺ྉ͕ඞཁʹͳΔɻ(Ethereum: ਺ԁఔ౓) ɹख਺ྉ͕ඞཁͳॲཧΛݶఆͯ͠ϢʔβͷೲಘײΛಘΔʹ͸ʁ ɾΞϓϦετΞͷ৹ࠪʹҾ͔͔ͬΓϦϦʔεͰ͖ͳ͍ࣄྫ͕͋Δɻ ɹετΞͷ৹ࠪنఆΛຬͨͭͭ͠ɺϒϩοΫνΣʔϯήʔϜΛϦϦʔε͢Δʹ͸ʁ 11 ମݧஊ