weapons.lua

   1 local cabo = {-15,-15,-15,-15+10}
   2 local cabo2 = {-15+1,-15+1,-15+1,-15+10+1}
   3 local cano = {-15,-15+10,-45,-15+10}
   4 local cano2 = {-15+1,-15+10+1,-45+1,-15+10+1}
   5
   6 math.randomseed( os.time() )
   7
   8 function randomspread(spread)
   9         return math.random()*2*spread-spread
  10 end
  11
  12 shotgun = Weapon{
  13                         name = "Shotgun",
  14                         righthand = {-30,-15+10},
  15                         lefthand = {-15,-15},
  16                         tip = {-45,-15+10},
  17                         firerate = 1000,
  18                         sprite = {
  19                                         Line(cabo),
  20                                         Line(cabo2),
  21                                         Line(cano),
  22                                         Line(cano2)},
  23                         whenfire = function (x,y,angle,w)
  24                                                 for i = 1,5 do
  25                                                         Shot {
  26                                                                 x = x,
  27                                                                 y = y,
  28                                                                 angle = angle+randomspread(0.2),
  29                                                                 weapon = w,
  30                                                                 duration = 1000,
  31                                                                 speed = 4,
  32                                                                 sprite = {
  33                                                                                 Line{0,0,3,0},
  34                                                                                 Line{3,0,3,3},
  35                                                                                 Line{3,3,0,3},
  36                                                                                 Line{0,3,0,0},
  37                                                                                 }
  38                                                                 }
  39                                                 end
  40                                            end
  41 }
  42
  43 function addXY(x,y,...)
  44         local t = {...}
  45         for i = 1, #t do
  46                 t[i][1] = t[i][1] + x
  47                 t[i][2] = t[i][2] + y
  48                 t[i][3] = t[i][3] + x
  49                 t[i][4] = t[i][4] + y
  50         end
  51         return unpack(t)
  52 end
  53
  54 function mulXY(x,y,...)
  55         local t = {...}
  56         for i = 1, #t do
  57                 t[i][1] = t[i][1] * x
  58                 t[i][2] = t[i][2] * y
  59                 t[i][3] = t[i][3] * x
  60                 t[i][4] = t[i][4] * y
  61         end
  62         return unpack(t)
  63 end
  64
  65
  66 local rainbowcolors = {{221,0,0},
  67                                            {254,98,48},
  68                                            {254,246,0},
  69                                            {0,188,0},
  70                                            {0,155,254},
  71                                            {0,0,131},
  72                                            {48,0,155}}
  73 for i = 1,7 do
  74         rainbowcolors[i][1] = rainbowcolors[i][1]/255
  75         rainbowcolors[i][2] = rainbowcolors[i][2]/255
  76         rainbowcolors[i][3] = rainbowcolors[i][3]/255
  77 end
  78
  79 local rainbowsprite = {}
  80 local rainbowsegments = 40
  81 local rainbowsize = 400
  82 local rainbowheight = 50
  83 for i = 1, rainbowsegments do
  84         for j = 1,7 do
  85                 rainbowsprite[#rainbowsprite+1] = Line{
  86                                                                 (i/rainbowsegments)*rainbowsize,
  87                                                                 math.sin((i/rainbowsegments)*math.pi)*-rainbowheight+j,
  88                                                                 ((i+1)/rainbowsegments)*rainbowsize,
  89                                                                 math.sin(((i+1)/rainbowsegments)*math.pi)*-rainbowheight+j,
  90                                                                 color = rainbowcolors[j],
  91                                                                 }
  92         end
  93 end
  94
  95
  96 rainbow = Weapon{
  97                 name = "CareBear",
  98                 righthand = {10,-30},
  99                 lefthand = {30,-10},
 100                 tip = {-10,15},
 101                 firerate = 1000,
 102                 sprite = {},
 103                 whenfire = function (x,y,angle,w)
 104                                         local peitox = math.cos(angle)*x-math.sin(angle)*y --desfaz todo o calculo que eh feito pra ajuste de tip... mas vale apena :D
 105                                         local peitoy = math.sin(angle)*x+math.cos(angle)*y
 106                                         local s = {}
 107                                         local dir = 1
 108                                         local add = 0
 109                                         if math.abs(angle) < math.pi/2 then
 110                                                 dir = -1
 111                                                 add = 17
 112                                         end
 113                                         for i = 1, #rainbowsprite do
 114                                                 s[i] = Line {
 115                                                                         rainbowsprite[i][1]*dir+add,
 116                                                                         rainbowsprite[i][2],
 117                                                                         rainbowsprite[i][3]*dir+add,
 118                                                                         rainbowsprite[i][4],
 119                                                                         color = rainbowsprite[i].color
 120                                                                 }
 121                                         end
 122                                         Shot {
 123                                                 x = peitox,
 124                                                 y = peitoy,
 125                                                 angle = 0,
 126                                                 weapon = w,
 127                                                 speed = 0,
 128                                                 duration = 600,
 129                                                 sprite = s,
 130                                         }
 131                                         end
 132 }
 133
 134 local t = 0
 135 flamethrower = Weapon{
 136                         name = "Flamethrower",
 137                         righthand = {-20,-13},
 138                         lefthand = {-25,-10},
 139                         tip = {-65,-15+10},
 140                         firerate = 60,
 141                         sprite = {addXY(-10,0,
 142                                         Line{-20,-15,-20,-15+10},
 143                                         Line{-20,-15,-35,-15},
 144                                         Line{-35,-15,-35,-15+10},
 145                                         Line{-5,-15,-15,-15+10},
 146                                         Line{-5-8,-15+8,-5-8,-15},
 147                                         Line{-15,-15+10,-50,-15+10},
 148                                         Line{-40,-15+10,-50,-15},
 149                                         Line{-50,-15,-65,-15},
 150                                         Line{-65,-15,-65,-10},
 151                                         Line{-60,-15+6,-60,-15+13},
 152                                         Line{-50,-15+6,-60,-15+6},
 153                                         Line{-50,-15+13,-60,-15+13},
 154                                         Line{-50,-15+6,-50,-15+13}
 155                                         )
 156                                         },
 157                         whenfire = function (x,y,angle,w)
 158                                                 red = {math.random()/4+0.75,math.random()/3,0}
 159                                                 for i = 1,math.random(4) do
 160                                                         local flametip = math.random()*4
 161                                                         local flamesprite = {mulXY(3,4,
 162                                                                                         Line{flametip,0,0,2,color = red},
 163                                                                                         Line{0,2,0,3,color = red},
 164                                                                                         Line{0,3,1,4,color = red},
 165                                                                                         Line{1,4,3,4,color = red},
 166                                                                                         Line{3,4,4,3,color = red},
 167                                                                                         Line{4,3,4,2,color = red},
 168                                                                                         Line{4,2,flametip,0,color = red}
 169                                                                                         )}
 170                                                         t = t + 0.4
 171                                                         Shot {
 172                                                                 x = x,
 173                                                                 y = y,
 174                                                                 angle = angle+math.sin(t)*0.6+randomspread(0.4),
 175                                                                 weapon = w,
 176                                                                 speed = 3,
 177                                                                 duration = 500+math.random(500)-250,
 178                                                                 gravity = -0.04,
 179                                                                 sprite = flamesprite,
 180                                                                 }
 181                                                 end
 182                                            end
 183 }
 184