{"id":1424,"date":"2009-12-16T23:18:04","date_gmt":"2009-12-16T22:18:04","guid":{"rendered":"http:\/\/www.alphak.net\/news\/?p=1424"},"modified":"2014-09-21T16:21:17","modified_gmt":"2014-09-21T14:21:17","slug":"pong-clock-calcul-des-trajectoires","status":"publish","type":"post","link":"https:\/\/www.alphak.net\/news\/2009\/12\/pong-clock-calcul-des-trajectoires\/","title":{"rendered":"Pong Clock :: calcul des trajectoires"},"content":{"rendered":"

Deux rapides am\u00e9liorations<\/strong> ont \u00e9t\u00e9 apport\u00e9es :<\/p>\n

La police de caract\u00e8res<\/strong> utilis\u00e9e pour l’affichage des scores a \u00e9t\u00e9 modifi\u00e9e pour se rapprocher du jeu original, plus \u00ab\u00a0carr\u00e9e\u00a0\u00bb, compos\u00e9e de lignes simples. \u00c7a n’a l’air de rien comme \u00e7a, mais j’ai d\u00fb \u00ab\u00a0dessiner\u00a0\u00bb les 10 chiffres pixel par pixel<\/strong> dans le code (par groupe de 8 pixels, pour \u00eatre pr\u00e9cis). Ce qui donne un truc tr\u00e8s sympa dans ce genre l\u00e0 (une ligne = un caract\u00e8re) :<\/p>\n

unsigned char pongfont[4096] = {\r\n\t0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // chr(0)\r\n\t// [...]\r\n\t254,254,198,198,198,198,198,198,198,198,198,198,198,254,254,0, // chr(48) = 0\r\n\t24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,0, // chr(49) = 1\r\n\t254,254,6,6,6,6,254,254,192,192,192,192,192,254,254,0, // chr(50) = 2\r\n\t254,254,6,6,6,6,62,62,6,6,6,6,6,254,254,0, // chr(51) = 3\r\n\t198,198,198,198,198,198,254,254,6,6,6,6,6,6,6,0, // chr(52) = 4\r\n\t254,254,192,192,192,192,254,254,6,6,6,6,6,254,254,0, // chr(53) = 5\r\n\t254,254,192,192,192,192,254,254,198,198,198,198,198,254,254,0, // chr(54) = 6\r\n\t254,254,6,6,6,6,6,6,6,6,6,6,6,6,6,0, // chr(55) = 7\r\n\t254,254,198,198,198,198,254,254,198,198,198,198,198,254,254,0, // chr(56) = 8\r\n\t254,254,198,198,198,198,254,254,6,6,6,6,6,254,254,0, // chr(57) = 9\r\n\t// [...]\r\n\t0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0  // chr(255) = \u00ff\r\n};<\/pre>\n
\"Mise<\/a>
Mise \u00e0 jour de la police de caract\u00e8res, premi\u00e8res informations de trajectoire.<\/p><\/div>\n
Enfin, pas forc\u00e9ment plus simple, sans \u00eatre non plus tr\u00e8s complexe, la d\u00e9termination de la trajectoire<\/strong> qui sera suivie par la balle lorsqu’elle touche la raquette, jusqu’\u00e0 la raquette adverse, affich\u00e9e en vert sur ces captures d’\u00e9cran en mode debug.<\/p>\n
\"Le<\/a>
Le nombre de rebonds peut rapidement devenir important…<\/p><\/div>\n
C’est \u00e0 peu pr\u00e8s tout ce qu’il est possible de faire \u00e0 ce stade avec des images fixes. Les prochaines modifications m’am\u00e8neront certainement \u00e0 me lancer \u00e0 minima dans l’animation<\/strong> de la balle.<\/p>\n","protected":false},"excerpt":{"rendered":"
Deux rapides am\u00e9liorations<\/strong> ont \u00e9t\u00e9 apport\u00e9es :<\/p>\n
La police de caract\u00e8res<\/strong> utilis\u00e9e pour l’affichage des scores a \u00e9t\u00e9 modifi\u00e9e pour se rapprocher du jeu original, plus \u00ab\u00a0carr\u00e9e\u00a0\u00bb, compos\u00e9e de lignes simples. \u00c7a n’a l’air de rien comme \u00e7a, mais j’ai d\u00fb \u00ab\u00a0dessiner\u00a0\u00bb les 10 chiffres pixel par pixel<\/strong> dans le code (par groupe de 8 pixels, pour \u00eatre pr\u00e9cis). Ce qui donne un truc tr\u00e8s sympa dans ce genre l\u00e0 (une ligne = un caract\u00e8re) :<\/p>\n\t
\r\n\t\t
\r\n\t\t\t[<\/span>…<\/span>]<\/span>\r\n\t\t<\/div>\r\n\t\t
\r\n\t\t\tLire la suite de l'article <\/i><\/span><\/a>\r\n\t\t<\/div>\r\n\t\t<\/a>\r\n\t<\/div>\r\n","protected":false},"author":1,"featured_media":1429,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[142],"tags":[205,343,114,204,194,206],"class_list":["post-1424","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bricolage","tag-c","tag-code","tag-pong","tag-programmation","tag-svgalib","tag-trajectoire"],"_links":{"self":[{"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/posts\/1424"}],"collection":[{"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/comments?post=1424"}],"version-history":[{"count":5,"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/posts\/1424\/revisions"}],"predecessor-version":[{"id":2904,"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/posts\/1424\/revisions\/2904"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/media\/1429"}],"wp:attachment":[{"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/media?parent=1424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/categories?post=1424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alphak.net\/news\/wp-json\/wp\/v2\/tags?post=1424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}