[Из песочницы] Делаем игру с Gideros
-- Add box2d physics library
require "box2d"
level = Core.class(Sprite)
function level:init()
application:setOrientation(Application.LANDSCAPE_LEFT)
local spritesheet = Texture.new("spritesheet.png")
local props = Texture.new("props.png")
local buttons = Texture.new("buttons.png")
self.world = b2.World.new(0, 10, true)
-- Globals for followed camera
self.screenW = application:getContentWidth()*2
self.screenH = application:getContentHeight()
-- Add sprites
self.catapult_l = Bitmap.new(TextureRegion.new(spritesheet, 834, 1, 43, 124))
self.catapult_r = Bitmap.new(TextureRegion.new(spritesheet, 3, 1, 37, 199))
self.bird_idle = Bitmap.new(TextureRegion.new(spritesheet, 903, 798, 46, 44))
self.bg_image = Texture.new("bg.png", true, {wrap = Texture.REPEAT})
self.square_prop = Bitmap.new(TextureRegion.new(props, 0, 1, 84, 84))
self.triangle_prop = Bitmap.new(TextureRegion.new(props, 85, 1, 85, 83))
self.restart = Bitmap.new(TextureRegion.new(buttons, 580, 295, 108, 108))
-- Change scale of sprites
self.bird_idle:setScale(0.6, 0.6, 0.6)
setHalf({self.catapult_r,
self.catapult_l,
self.square_prop,
self.triangle_prop,
self.restart})
-- Create background
local bg = Bitmap.new(self.bg_image)
bg:setPosition(0, 0);
local bg1 = Bitmap.new(self.bg_image)
bg1:setPosition(bg:getWidth(), 0);
-- Add ground collision
self:wall(application:getContentWidth(), application:getContentHeight() - 20, application:getContentWidth()*2, 40)
-- Add props physics
local square_body = self.world:createBody{type = b2.DYNAMIC_BODY}
local square_shape = b2.PolygonShape.new()
square_shape:set(0, 0,
self.square_prop:getWidth(), 0,
self.square_prop:getWidth(), self.square_prop:getHeight(),
0, self.square_prop:getHeight())
local square_fixture = square_body:createFixture{shape = square_shape, density = 1.0, friction = 0.1, restitution = 0.2}
self.square_prop.body = square_body
local triangle_body = self.world:createBody{type = b2.DYNAMIC_BODY}
local triangle_shape = b2.PolygonShape.new()
triangle_shape:set(self.triangle_prop:getWidth() / 2, 0,
self.triangle_prop:getWidth(), self.triangle_prop:getHeight(),
0, self.triangle_prop:getHeight())
local triangle_fixture = triangle_body:createFixture{shape = triangle_shape, density = 1.0, friction = 0.1, restitution = 0.2}
self.triangle_prop.body = triangle_body
-- Place catapult
self.catapult_r:setPosition(100, 178)
self.catapult_l:setPosition(85, 174)
-- Place bird
self.bird_idle:setAnchorPoint(.5, .5)
self.bird_idle:setPosition(100, 190)
self.start_x, self.start_y = self.bird_idle:getPosition()
-- Place props
self.square_prop.body:setPosition(600, 200)
self.triangle_prop.body:setPosition(600, 150)
-- Place restart buttons
self.restart:setAnchorPosition(0, 0)
self.restart:setPosition(10, 10)
self.restart:addEventListener(Event.MOUSE_DOWN, restartDown, self)
self.restart:addEventListener(Event.MOUSE_UP, restartUp, self)
-- Create elastic band for catapult
local onBirdBandX = self.bird_idle:getX() - self.bird_idle:getWidth() / 2
local onBirdBandY = self.bird_idle:getHeight() / 2
self.band_l = Shape.new()
self.band_l:setFillStyle(Shape.SOLID, 0x382E1C)
self.band_l:beginPath(Shape.NON_ZERO)
self.band_l:lineTo(onBirdBandX + 4, self.bird_idle:getY() - onBirdBandY + 5)
self.band_l:lineTo(onBirdBandX + 4, self.bird_idle:getY() + onBirdBandY - 5)
self.band_l:lineTo(87, 198)
self.band_l:lineTo(85, 185)
self.band_l:closePath()
self.band_l:endPath()
self.band_r = Shape.new()
self.band_r:setFillStyle(Shape.SOLID, 0x382E1C)
self.band_r:beginPath(Shape.NON_ZERO)
self.band_r:lineTo(onBirdBandX + 4, self.bird_idle:getY() - onBirdBandY + 5)
self.band_r:lineTo(onBirdBandX + 4, self.bird_idle:getY() + onBirdBandY - 5)
self.band_r:lineTo(110, 198)
self.band_r:lineTo(110, 187)
self.band_r:closePath()
self.band_r:endPath()
-- Add drag events to bird
self.bird_idle:addEventListener(Event.MOUSE_DOWN, onMouseDown, self)
self.bird_idle:addEventListener(Event.MOUSE_MOVE, onMouseMove, self)
self.bird_idle:addEventListener(Event.MOUSE_UP, onMouseUp, self)
-- Add all elements to scene
self:addChildAt(bg, 1)
self:addChildAt(bg1, 2)
self:addChildAt(self.catapult_r, 3)
self:addChildAt(self.band_r, 4)
self:addChildAt(self.bird_idle, 5)
self:addChildAt(self.catapult_l, 6)
self:addChildAt(self.band_l, 7)
self:addChildAt(self.square_prop, 8)
self:addChildAt(self.triangle_prop, 9)
self:addChildAt(self.restart, 10)
self:addEventListener(Event.ENTER_FRAME, self.onEnterFrame, self)
self:addEventListener("exitBegin", self.onExitBegin, self)
end
function level:wall(x, y, width, height)
local wall = Shape.new()
wall:beginPath()
wall:moveTo(-width/2,-height/2)
wall:lineTo(width/2, -height/2)
wall:lineTo(width/2, height/2)
wall:lineTo(-width/2, height/2)
wall:closePath()
wall:endPath()
wall:setPosition(x,y)
local body = self.world:createBody{type = b2.STATIC_BODY}
body:setPosition(wall:getX(), wall:getY())
body:setAngle(wall:getRotation() * math.pi/180)
local poly = b2.PolygonShape.new()
poly:setAsBox(wall:getWidth()/2, wall:getHeight()/2)
local fixture = body:createFixture{shape = poly, density = 1.0,
friction = 1, restitution = 0}
wall.body = body
wall.body.type = "wall"
stage:addChild(wall)
end
function setHalf(arr)
for i = 1, #arr do
arr[i]:setScale(.5, .5, .5)
end
end
function onMouseDown(self, event)
local bird = self.bird_idle
if bird:hitTestPoint(event.x, event.y) and bird.isFly ~= true then
bird.isFocus = true
bird.x0, bird.y0 = event.x, event.y
event:stopPropagation()
end
end
function onMouseMove(self, event)
-- if sprite touch and move finger, then change position of sprite
local bird = self.bird_idle
if bird.isFocus then
if event.x > 20 and event.x < 140 then
local dx = event.x - bird.x0
bird:setX(bird:getX() + dx)
bird.x0 = event.x
end
if event.y > 160 and event.y < 265 then
local dy = event.y - bird.y0
bird:setY(bird:getY() + dy)
self.bird_idle.y0 = event.y
end
local onBirdBandX = self.bird_idle:getX() - self.bird_idle:getWidth() / 2
local onBirdBandY = self.bird_idle:getHeight() / 2
self.band_l:clear()
self.band_l = Shape.new()
self.band_l:setFillStyle(Shape.SOLID, 0x382E1C)
self.band_l:beginPath(Shape.NON_ZERO)
self.band_l:lineTo(onBirdBandX + 4, self.bird_idle:getY() - onBirdBandY + 5)
self.band_l:lineTo(onBirdBandX + 4, self.bird_idle:getY() + onBirdBandY - 5)
self.band_l:lineTo(87, 198)
self.band_l:lineTo(85, 185)
self.band_l:closePath()
self.band_l:endPath()
self:addChild(self.band_l)
self.band_r:clear()
self.band_r = Shape.new()
self.band_r:setFillStyle(Shape.SOLID, 0x382E1C)
self.band_r:beginPath(Shape.NON_ZERO)
self.band_r:lineTo(onBirdBandX + 4, self.bird_idle:getY() - onBirdBandY + 5)
self.band_r:lineTo(onBirdBandX + 4, self.bird_idle:getY() + onBirdBandY - 5)
self.band_r:lineTo(110, 198)
self.band_r:lineTo(110, 187)
self.band_r:closePath()
self.band_r:endPath()
self:addChildAt(self.band_r, 4)
event:stopPropagation()
end
end
function onMouseUp(self, event)
if self.bird_idle.isFocus and self.bird_idle.isFly ~= true then
self.bird_idle.isFocus = false
local bird_body = self.world:createBody{type = b2.DYNAMIC_BODY}
local circle_shape = b2.CircleShape.new(0, 0, self.bird_idle:getWidth() / 2)
local bird_fixture = bird_body:createFixture{shape = circle_shape, density = 1.0, friction = .5, restitution = 0}
self.bird_idle.body = bird_body
self.bird_idle.body:setPosition(self.bird_idle:getX() + self.bird_idle:getWidth() / 2, self.bird_idle:getY() + self.bird_idle:getHeight() / 2)
self.bird_idle.body:applyForce((self.start_x - self.bird_idle:getX()) * 8, (self.start_y - self.bird_idle:getY()) * 8, self.bird_idle.body:getWorldCenter())
self.bird_idle.isFly = true
self.band_l:clear()
self.band_r:clear()
event:stopPropagation()
end
end
function restartDown (self, event)
if self.restart:hitTestPoint(event.x, event.y) then
self.touch = true
event:stopPropagation()
end
end
function restartUp (self, event)
if self.touch then
sceneManager:changeScene("level", 1, SceneManager.flipWithFade, easing.outBack)
end
end
function level:onEnterFrame()
self.world:step(1/60, 8, 3)
local screenW = application:getContentWidth()
local screenH = application:getContentHeight()
local offsetX = 0;
local offsetY = 0;
if((self.screenW - self.bird_idle:getX()) < screenW/2) then
offsetX = -self.screenW + screenW
elseif(self.bird_idle:getX() >= screenW/2) then
offsetX = -(self.bird_idle:getX() - screenW/2)
end
self:setX(offsetX)
if((self.screenH - self.bird_idle:getY()) < screenH/2) then
offsetY = -self.screenH + screenH
elseif(self.bird_idle:getY()>= screenH/2) then
offsetY = -(self.bird_idle:getY() - screenH/2)
end
self:setY(offsetY)
for i = 1, self:getNumChildren() do
local sprite = self:getChildAt(i)
if sprite.body then
local body = sprite.body
local bodyX, bodyY = body:getPosition()
sprite:setPosition(bodyX, bodyY)
sprite:setRotation(body:getAngle() * 180 / math.pi)
end
end
-- Move intarface with camera
self.restart:setX(-self:getX())
if self.bird_idle:getX() < 0 or self.bird_idle:getX() > self.screenW then
sceneManager:changeScene("level", 1, SceneManager.flipWithFade, easing.outBack)
end
end
function level:onExitBegin()
self:removeEventListener(Event.ENTER_FRAME, self.onEnterFrame, self)
end
