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FlappyBird

IT知识flappyflappybird

【FlappyBird】知识就是力量，时间就是生命。这篇文章主要讲述FlappyBird相关的知识，希望能为你提供帮助。

FlappyBird

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FlappyBird

文章图片
canvas.width = 400; canvas.height = 500; var bg_day = new Sprite("https://upload-images.jianshu.io/upload_images/9107736-612970cfd3fd6f4c.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/288", 0, 0, 400, 500); var bg_night = new Sprite("https://upload-images.jianshu.io/upload_images/9107736-3e6a076d9048bf9d.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/288", 400, 0, 400, 500); var get_ready = new Sprite("https://upload-images.jianshu.io/upload_images/9107736-b6d411bd48abe8d8.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/196", 100, 260, 200, 80); var bird0 = new Sprite("https://upload-images.jianshu.io/upload_images/9107736-641299de96a85e5f.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/48", 50, 220, 50, 50); var bird1 = new Sprite("https://upload-images.jianshu.io/upload_images/9107736-3c98de34184266c9.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/48", 50, 220, 50, 50); var bird2 = new Sprite("https://upload-images.jianshu.io/upload_images/9107736-606b9e6598c0b1e2.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/48", 50, 220, 50, 50); var pipe_up = new Sprite("https://upload-images.jianshu.io/upload_images/9107736-7afee517ac79a77d.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/52", 300, Math.random() * 100 - 200, 50, 300); var pipe_down = new Sprite("https://upload-images.jianshu.io/upload_images/9107736-313a5fd71b3d51d7.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/52", 300, 500 + pipe_up.y , 50, 300); var game_over = new Sprite("https://upload-images.jianshu.io/upload_images/9107736-3fef9018816963ee.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/204", 100, 260, 200, 80); var game_state = 0; // 准备开始游戏var speed = 1; var add_score = 0; var time = 0; var framePerSeconds = 1; var score = 0; var score_text = new Text("Score: " + score, 0, 0, 50); function birdAnimation() { time += 0.1; var frameIndex = Math.floor(time / (1.0 /framePerSeconds)); if(frameIndex % 3 === 0) { bird0.draw(); } if(frameIndex % 3 == 1) { bird1.draw(); } if(frameIndex % 3 == 2) { bird2.draw(); } }function draw_bg() { canvas.clear(); bg_day.draw(); bg_night.draw(); score_text.src = "https://www.songbingjia.com/android/Score:" + score; score_text.draw(); }function MainLoop() { if(game_state === 0) { draw_bg(); get_ready.draw(); pipe_up.x = 300; pipe_down.x = 300; pipe_up.y = Math.random() * 100 - 200; pipe_down.y = 450 + pipe_up.y; bird0.y = 220; bird1.y = bird0.y; bird2.y = bird0.y; get_ready.click = function() { game_state = 1; }; }if(game_state == 1) { draw_bg(); if(bg_day.x < -400) { bg_day.x = 400; } if(bg_night.x < -400) { bg_night.x = 400 } bg_day.x -= speed; bg_night.x -= speed; birdAnimation(); pipe_up.draw(); pipe_down.draw(); pipe_up.x -= speed; pipe_down.x -= speed; if(pipe_up.x < -50) { speed += 0.4; add_score += 10; score += add_score; pipe_up.x = 300; pipe_down.x = 300; pipe_up.y = Math.random() * 100 - 200; pipe_down.y = 500 + pipe_up.y; }bird0.y += 1; bird1.y = bird0.y; bird2.y = bird0.y; Mouse.click = function() { bird0.y -= 40; bird1.y = bird0.y; bird2.y = bird0.y; }; if(bird0.collide(pipe_up) || bird0.collide(pipe_down) || bird0.y < 0) { game_state = 2; }}if(game_state == 2) { bg_day.x = -300; bg_night.x = 100; draw_bg(); add_score = 0; speed = 1; game_over.draw(); game_over.click = function() { game_state = 0; score = 0; }; } }setInterval(MainLoop, 10);

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