Mercurial > vanillian

annotate main.lua @ 7:dd17a136b402

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overlay layers
author Radomir Dopieralski <sheep-devel@sheep.art.pl>
date Sat, 15 Dec 2012 14:42:10 +0100
parents 301a5bd338fb
children a8111759a5c7
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1 local ATL = require("AdvTiledLoader")
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2 local anim8 = require("anim8")
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3 local sprite = require("sprite")
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5 local SPRITES = {}
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6 local SHADOWS = {}
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7 local MAP
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8 local tx, ty = 0, 0
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9 local DX = {0, 1, 0, -1}
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10 local DY = {-1, 0, 1, 0}
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11 local SHADOW_IMAGE
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12 local MOBS_IMAGE
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13 local GRID = anim8.newGrid(64, 64, 128, 128)
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14 local scroll_speed = 250
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15 local scroll_margin = 64
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17
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18 function newMob(x, y, cells)
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19 local mob = {}
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20 mob.sprite = sprite.newSprite(
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21 x - 32, y - 60, MOBS_IMAGE,
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22 anim8.newAnimation('loop', GRID(cells), 0.25)
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23 )
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24 mob.shadow = sprite.newShadow(SHADOW_IMAGE, mob.sprite)
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25 table.insert(SPRITES, mob.sprite)
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26 table.insert(SHADOWS, mob.shadow)
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27 return mob
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28 end
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29
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30 function makeVillain(villain)
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31 function villain.sprite:walk(dt, dir)
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32 local x = self.x + DX[dir] * dt * 250
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33 local y = self.y + DY[dir] * dt * 250
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34 local tx, ty = math.floor((x+32)/48), math.floor((y+60)/48)
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35 local cell = MAP.layers['control']:get(tx, ty)
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36 if cell and cell.properties and cell.properties.block == 0 then
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37 self.x = x
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38 self.y = y
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39 end
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40 end
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41 function villain.sprite:update(dt)
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42 local villain = self
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43 if love.keyboard.isDown("up") then villain:walk(dt, 1) end
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44 if love.keyboard.isDown("right") then villain:walk(dt, 2) end
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45 if love.keyboard.isDown("down") then villain:walk(dt, 3) end
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46 if love.keyboard.isDown("left") then villain:walk(dt, 4) end
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47 if villain.x + tx < scroll_margin then
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48 tx = tx + dt * scroll_speed
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49 else
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50 if villain.x + tx > 800 - 64 - scroll_margin then
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51 tx = tx - dt * scroll_speed
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52 end
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53 end
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54 if villain.y + ty < scroll_margin then
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55 ty = ty + dt * scroll_speed
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56 else
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57 if villain.y + ty > 600 - 64 - scroll_margin then
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58 ty = ty - dt * scroll_speed
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59 end
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60 end
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61 sprite.Sprite.update(self, dt)
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62 end
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63 return villain
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64 end
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66 function love.load()
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67 SHADOW_IMAGE = love.graphics.newImage('shadow.png')
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68 MOBS_IMAGE = love.graphics.newImage('mobs.png')
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69 MAP = ATL.Loader.load('level01.tmx')
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70 MAP.drawObjects = false
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71 for i, data in pairs(MAP.layers['mobs'].objects) do
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72 if data.name == 'villain' then
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73 local mob = newMob(data.x, data.y, '1-2,1')
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74 makeVillain(mob)
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75 else
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76 local mob = newMob(data.x, data.y, data.properties.cells or '1-2,2')
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77 end
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78 end
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79 end
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81
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82 function love.draw()
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83 love.graphics.translate(math.floor(tx), math.floor(ty))
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84 MAP:autoDrawRange(math.floor(tx), math.floor(ty), 1, 0)
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85 MAP:draw()
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86 for k, shadow in pairs(SHADOWS) do
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87 shadow:draw()
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88 end
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89 for k, sprite in pairs(SPRITES) do
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90 sprite:draw()
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91 end
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92 for i, layer in pairs(MAP.layerOrder) do
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93 if layer.properties.overlay then
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94 layer:draw()
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95 end
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96 end
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97 end
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98
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99
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100 function love.update(dt)
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101 for k, sprite in pairs(SPRITES) do
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102 sprite:update(dt)
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103 end
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104 table.sort(SPRITES, function (a, b) return a.y < b.y end)
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105 end