{"id":1656,"date":"2021-12-21T17:38:00","date_gmt":"2021-12-21T17:38:00","guid":{"rendered":"http:\/\/www.goncalo.pt\/por\/?p=1656"},"modified":"2023-10-07T03:02:04","modified_gmt":"2023-10-07T03:02:04","slug":"2021-12-21-colisao-a-nivel-de-pixeis-contra-chuva-quase-pronta-no-meu-game-engine-em-c","status":"publish","type":"post","link":"https:\/\/www.goncalo.pt\/por\/2021\/12\/21\/2021-12-21-colisao-a-nivel-de-pixeis-contra-chuva-quase-pronta-no-meu-game-engine-em-c\/","title":{"rendered":"2021-12-21 &#8211; Colis\u00e3o a n\u00edvel de p\u00edxeis contra chuva quase pronta, no meu Game Engine em C++&#8230;"},"content":{"rendered":"\n<p>A detec\u00e7\u00e3o de colis\u00e3o entre as personagens do jogo (jogador e inimigos), e a chuva, e at\u00e9 entre fogo e chuva, est\u00e3o quase prontas (cliquem na imagem acima para ver a anima\u00e7\u00e3o, ou vejam abaixo).<\/p>\n\n\n\n<p>Mas ainda n\u00e3o est\u00e1 a n\u00edvel de p\u00edxeis, isso requer mais tempo, mas podem ver que j\u00e1 s\u00e3o colis\u00f5es em rect\u00e2ngulos apertados onde andam os sprites das personagens, depois meto a n\u00edvel de p\u00edxeis, mas reparem que os FPS (Frames Por Segundo) subiram para 150-200, ou seja, j\u00e1 optimizei de novo o c\u00f3digo da chuva, num simples I5.<\/p>\n\n\n\n<p>Agora a n\u00edvel de fogo ela faz algo giro tamb\u00e9m, que mostrarei mais tarde: quando a chuva se aproxima do fogo, vai evaporando, ou seja, as gotas de chuva come\u00e7am a perder a opacidade (ficam mais transparentes com a evapora\u00e7\u00e3o), e nem ver\u00e3o os salpicos das gotas ao embater no ch\u00e3o (se embaterem, porque muitas vezes com o fogo nem chegam l\u00e1), e salpicos ao lado do fogo evaporam-se nele tamb\u00e9m.<\/p>\n\n\n\n<p>Mais tarde tentarei mostrar estes pormenores com zoom e mais detalhe, apenas quando a colis\u00e3o a n\u00edvel de p\u00edxeis estiver perfeita (vai ser lindo!).<\/p>\n\n\n\n<p>A ver se amanh\u00e3 perco mais algum tempo com isso e acabo os algoritmos que iniciei hoje de madrugada e que fizeram isto ser poss\u00edvel.<\/p>\n\n\n\n<p>Hoje acordei curiosamente a sonhar que havia uma coruja aqui em Sesimbra l\u00e1 fora, e que comecei a olhar para ela, e de repente vi um avi\u00e3o tipo Boeing dos grandes, a cair dos c\u00e9us em fumo e fogo, mesmo ali a 200 metros daqui haha, e sem ondas de choque nem nada, e sa\u00ed da casa para espreitar e na entrada da porta estavam os vizinhos da frente, e disse-lhes &#8220;foi um avi\u00e3o que caiu ali&#8221; e responderam-me &#8220;pois, desde que fizeram ali a pista nova est\u00e1 sempre a acontecer&#8221; hahaha.<\/p>\n\n\n\n<p>Altamente, como se houvesse espa\u00e7o aqui nesta localidade pequena, para fazerem uma pista pequena ali ao lado que aguentasse com avi\u00f5es destes (e numa rua de uns 300-400 metros de comprimento.<\/p>\n\n\n\n<p>Isto deu-me ideia para talvez em 2022, criar talvez um avi\u00e3o no meu game engine para poder andar pelo ar.<\/p>\n\n\n\n<p>Recordo que n\u00e3o ando a desenvolver jogos mas sim o Game Engine em si, do zero, que \u00e9 o que d\u00e1 desafio (algum pelo menos), e s\u00f3 quando n\u00e3o tiver nada para fazer e ideias novas, \u00e9 que come\u00e7o a usar isto tudo nos meus jogos.<\/p>\n\n\n\n<p>Bem, mais not\u00edcias amanh\u00e3.<\/p>\n\n\n\n<p>2021-12-21.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"480\" src=\"http:\/\/www.goncalo.pt\/por\/wp-content\/uploads\/2021\/12\/2021-12-21-Rain-Pixel-Level-Collision-Detection-almost-ready-in-my-Cpp-Game-Engine.gif\" alt=\"2021-12-21 - Colis\u00e3o a n\u00edvel de p\u00edxeis contra chuva quase pronta, no meu Game Engine em C++...\" class=\"wp-image-1658\"\/><figcaption>2021-12-21 &#8211; Colis\u00e3o a n\u00edvel de p\u00edxeis contra chuva quase pronta, no meu Game Engine em C++&#8230;<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A detec\u00e7\u00e3o de colis\u00e3o entre as personagens do jogo (jogador e inimigos), e a chuva, e at\u00e9 entre fogo e<\/p>\n","protected":false},"author":1,"featured_media":1658,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,284,5,3,4,133],"tags":[7,186,135,118,207,24,23,117,281,120,187,166,172,26,25],"class_list":["post-1656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-game-development","category-platformers","category-programacao","category-projectos","category-softwares","category-video-jogos","tag-c","tag-chuva","tag-colisoes","tag-desenvolvimento-de-jogos","tag-dev","tag-game-dev","tag-game-engine","tag-motor-de-jogos","tag-platformer","tag-programacao","tag-rain","tag-simulacao","tag-simulacoes","tag-videogames","tag-videojogos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>2021-12-21 - Colis\u00e3o a n\u00edvel de p\u00edxeis contra chuva quase pronta, no meu Game Engine em C++... - Gon\u00e7alo Ferreira<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.goncalo.pt\/por\/2021\/12\/21\/2021-12-21-colisao-a-nivel-de-pixeis-contra-chuva-quase-pronta-no-meu-game-engine-em-c\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2021-12-21 - Colis\u00e3o a n\u00edvel de p\u00edxeis contra chuva quase pronta, no meu Game Engine em C++... - Gon\u00e7alo Ferreira\" \/>\n<meta property=\"og:description\" content=\"A detec\u00e7\u00e3o de colis\u00e3o entre as personagens do jogo (jogador e inimigos), e a chuva, e at\u00e9 entre fogo e\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.goncalo.pt\/por\/2021\/12\/21\/2021-12-21-colisao-a-nivel-de-pixeis-contra-chuva-quase-pronta-no-meu-game-engine-em-c\/\" \/>\n<meta property=\"og:site_name\" content=\"Gon\u00e7alo Ferreira\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-21T17:38:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-07T03:02:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.goncalo.pt\/por\/wp-content\/uploads\/2021\/12\/2021-12-21-Rain-Pixel-Level-Collision-Detection-almost-ready-in-my-Cpp-Game-Engine.gif\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"480\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/gif\" \/>\n<meta name=\"author\" content=\"gnmf\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"gnmf\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.goncalo.pt\/por\/2021\/12\/21\/2021-12-21-colisao-a-nivel-de-pixeis-contra-chuva-quase-pronta-no-meu-game-engine-em-c\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.goncalo.pt\/por\/2021\/12\/21\/2021-12-21-colisao-a-nivel-de-pixeis-contra-chuva-quase-pronta-no-meu-game-engine-em-c\/\"},\"author\":{\"name\":\"gnmf\",\"@id\":\"https:\/\/www.goncalo.pt\/por\/#\/schema\/person\/28a9f845c4de91a7c067707279b1d8dd\"},\"headline\":\"2021-12-21 &#8211; 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