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278 279 280 281 282 283 | -- main-- Use this function to perform your initial setupfunction setup() displayMode(FULLSCREEN) x = WIDTH/2 y = HEIGHT/2 img = sprite("Cargo Bot:Starry Background") -- 第一只 mesh 鸟 -- The 1st mesh bird myMeshBird1 = mesh() -- 第二只 mesh 鸟 -- The 2nd mesh bird myMeshBird2 = mesh() myMeshBird2.texCoords = {vec2(0,0),vec2(0,1),vec2(1,1),vec2(0,0),vec2(1,1),vec2(1,0)} myMeshBird2.texture = img -- 第三只 mesh 鸟 -- The 3rd mesh bird myMeshBird3 = mesh() -- 用于控制循环的变量 -- variable for loop control i, j = 0, 0 k = 1 m, n = 1000, 1 a, b = 255, 1 parameter.integer("i",0,150,0) parameter.integer("j",0,150,0) parameter.integer("k",-1,1,1) parameter.integer("m",0,2000,1000) parameter.integer("n",-5,5,1) parameter.integer("a",0,255,255) parameter.integer("b",-1,1,1) parameter.integer("l1",100,300,200) parameter.integer("h1",100,300,200) parameter.integer("l2",10,200,60) parameter.integer("h2",0,100,10) -- 三只对象实例鸟 -- Three object instance birds myBird1 = Bird(x,y) myBird2 = Bird(x+50,y) myBird3 = Bird(x,y)end-- This function gets called once every framefunction draw() -- 用来设置颜色渐变效果 -- Color alpha control -- Alpha channel has a maximum of 255 local alpha = math.min(ElapsedTime * 20%255, 255) -- Set tint using tint(grey, alpha) tint(255,alpha) -- 用 tint() 函数控制色彩透明度变化 -- Use tint() if alpha == 255 then tint(0,alpha) elseif alpha == 50 then tint(255,alpha) end -- 控制翅膀坐标变化 -- control change of wings' coords -- 若 i 达到最大值，则把步长 k 设置为 -1，i + k 值会递减 -- when i become max, set step k to -1, i+k will decrease -- 若 i 达到最小值，则把步长 k 设置为 1，i + k 值会递增 -- when i become min, set step k to 1, i+k will increase -- 当 i 最大时调用声音，以保证声音和动作同步 -- load sound while i become max , to make sure sound and motion synchronize if i == 150 then k = -1 sound("A Hero's Quest:Walk 2 (Short)") elseif i == 0 then k = 1 end -- 控制缩放 -- contrl scale if m == 1500 then n = -1 elseif m == 0 then n = 1 end -- 用变量 a，b 直接控制色彩透明度变化 -- use variable a,b to control change of color's alpha directly if a == 255 then b = -1 elseif a == 50 then b = 1 end -- 开始递增或递减 -- start increase or decrease i = i + 5 * k j = j + 8 * k m = m + 2 * n a = a + b -- 设置背景色 -- set background color background(11, 11, 10, 86) -- 设置背景参照物 -- set background object pushStyle() pushMatrix() -- scale(m/500,m/500) -- translate(-m,m) fill(255, 0, 0, alpha) stroke(255, 118, 0, alpha) ellipse(500,1250-m,m-350) popMatrix() popStyle() -- 用于三只 mesh 鸟的颜色 -- colors of three mesh birds myColor1 = color(255, 255, 0, alpha) myColor2 = color(79, 255, 0, a) myColor3 = color(79, 2, 100, a) -- 构成飞鸟线条的顶点坐标 -- vertex coords of bird line -- vec2 向量 p1(0,0) 为中心点提供坐标 -- vec(0,0) is the central point p1 = vec2(0,0) -- 组成右边翅膀的顶点 -- vertices of right wing -- p2, p3 = vec2(200+i/8,-150+2*j),vec2(60-i/3,10+j/3) p2, p3 = vec2(l1+i/8,-150+2*j),vec2(l2-i/3,h2+j/3) -- 组成左边翅膀的顶点 -- vertices of left wing -- p4, p5 = vec2(-200-i/8,-150+2*j),vec2(-60+i/3,10+j/3) p4, p5 = vec2(-200-i/8,-150+2*j),vec2(-60+i/3,10+j/3) -- 用这些坐标设置 mesh 的顶点 -- set mesh vertices myMeshBird1.vertices = {p1, p2, p3, p1, p4, p5} myMeshBird2.vertices = {p1, p2, p3, p1, p4, p5} myMeshBird3.vertices = {p1, p2, p3, p1, p4, p5} -- 平移 translate(3*x/4,3*y/4) -- 整体循环缩放全部飞鸟比例，产生鸟群距离变化的感觉 -- total birds loop scale, to feel birds distance changing scale(m/1500) -- 直接用 line() 函数画的飞鸟 -- use line() draw bird directly pushMatrix() pushStyle() translate(x/2,y) scale(3) stroke(0, 39, 255, 255) strokeWidth(5) -- 右边翅膀线条 -- lines of right wing line(p1[1],p1[2],p2[1],p2[2]) line(p1[1],p1[2],p3[1],p3[2]) line(p3[1],p3[2],p2[1],p2[2]) -- 左边翅膀线条 -- lines of right wing line(p1[1],p1[2],p4[1],p4[2]) line(p1[1],p1[2],p5[1],p5[2]) line(p4[1],p4[2],p5[1],p5[2]) -- 用文字标出飞鸟的编号 -- print bird's No. fill(0, 51, 255, 255) -- text("零号鸟",p1[1],p1[2]) text("1",p1[1],p1[2]) popStyle() popMatrix() -- 用 class Bird 绘制的对象实例鸟 -- object instance bird drawing with class Bird pushMatrix() pushStyle() -- myBird.deltaX = myBird.deltaX + 5*k -- myBird.deltaY = myBird.deltaY + 5*k rotate(m) scale(0.2) myBird1:setColors(myColor) myBird1:draw() popStyle() popMatrix() -- 用 class Bird 绘制的对象实例鸟 -- object instance bird drawing with class Bird pushMatrix() pushStyle() rotate(-m) scale(0.3) myBird2:setColors(myColor) myBird2:draw() popStyle() popMatrix() -- 用 class Bird 绘制的对象实例鸟 -- object instance bird drawing with class Bird pushMatrix() pushStyle() rotate(-m) scale(0.3) myBird3:setColors(myColor2) myBird3:draw() popStyle() popMatrix() -- 用 mesh 绘制的一号飞鸟 -- No.1 mesh bird pushMatrix() pushStyle() translate(-x/4,-y/2) scale(.8) myMeshBird1:setColors(myColor1) -- myMeshBird1.shader.time = ElapsedTime*5 myMeshBird1:draw() -- 用文字标出飞鸟的编号 -- print bird's No. fill(173, 255, 0, 255) -- text("一号鸟",p1[1],p1[2]) text("1",p1[1],p1[2]) popStyle() popMatrix() -- 用 mesh 绘制的二号飞鸟 -- No.1 mesh bird pushMatrix() pushStyle() translate(300,200) scale(.5) myMeshBird2:setColors(myColor2) myMeshBird2:draw() -- 用文字标出飞鸟的编号 -- print bird's No. fill(63, 218, 26, 255) -- text("二号鸟",p1[1],p1[2]) text("2",p1[1],p1[2]) popStyle() popMatrix() -- 用 mesh 绘制的三号飞鸟 -- No.1 mesh bird pushMatrix() pushStyle() translate(30,80) scale(2) myMeshBird3:setColors(myColor3) myMeshBird3:draw() -- 用文字标出飞鸟的编号 -- print bird's No. fill(218, 25, 197, 255) -- text("三号鸟",p1[1],p1[2]) text("3",p1[1],p1[2]) popStyle() popMatrix() end-- Bird classBird = class()function Bird:init(x,y) -- you can accept and set parameters here -- 最初的位置坐标 -- bird's position self.x = x self.y = y -- 最初的坐标偏移量 -- bird's offset self.deltaX = 0 self.deltaY = 0 self.i1, self.j1 = 0, 0 self.k1 = 1 flag = mesh() myColor = color(55, 172, 172, 255) Bird:setColors(myColor) endfunction Bird:draw() -- Codea does not automatically call this method if self.i1 == 150 then self.k1 = -1 elseif i == 0 then self.k1 = 1 end self.i1 = self.i1 + 5 * self.k1 self.j1 = self.j1 + 8 * self.k1 self.deltaX = self.i1 self.deltaY = self.j1 flag.vertices = { vec2(self.x,self.y), vec2(self.x + 200 - self.deltaX/8, self.y - 150 + self.deltaY * 2), vec2(self.x + 60 - self.deltaX/3, self.y + 10+self.deltaY/3), vec2(self.x,self.y), vec2(self.x - 200 + self.deltaX/8, self.y - 150 + self.deltaY * 2), vec2(self.x - 60 + self.deltaX/3, self.y + 10 + self.deltaY/3), } -- Bird:setColors(myColor) fill(24, 218, 201, 255) -- text("对象鸟",self.x,self.y) text("Object Instance Bird",self.x,self.y) flag:draw() endfunction Bird:setColors(colors) flag:setColors(colors)endfunction Bird:touched(touch) -- Codea does not automatically call this methodend |