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Plane: physics adjustments

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Erkki Seppälä 2014-10-19 01:01:37 +03:00
parent 22caccc90c
commit 806e4d8b47
1 changed files with 16 additions and 7 deletions
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23
entities/plane.lua
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@ -19,14 +19,14 @@ local lift = function(angle)
return 1.68429 * math.exp(-math.pow(angle / math.pi * 180.0 -17.3801, 2.0) / (2.0 * math.pow(15.0, 2.0))) return 1.68429 * math.exp(-math.pow(angle / math.pi * 180.0 -17.3801, 2.0) / (2.0 * math.pow(15.0, 2.0)))
end end
local fwd_frict_coeff = 0.2 local fwd_frict_coeff = 0.3
local nor_frict_coeff = 2.0 local nor_frict_coeff = 2.0
local tail_frict_coeff = 0.5 local tail_frict_coeff = 0.3
local turn_speed = 2.0 local turn_speed = 2.0
local wing_lift = 0.1 * 5 local wing_lift = 0.1 * 5
local accel_speed = 1000.0 local accel_speed = 1000.0
local decel_speed = 2000.0 local decel_speed = 2000.0
local max_motorPower = 4000.0 local max_motorPower = 400.0
local plane_area = 10.0 local plane_area = 10.0
local head_area = 1.0 local head_area = 1.0
@ -35,7 +35,7 @@ Plane = Class{
frames = {}, frames = {},
motorPower = 100, motorPower = 400,
debugVectors = {}, debugVectors = {},
@ -48,16 +48,25 @@ Plane = Class{
init = function(self, x, y, level) init = function(self, x, y, level)
local density = 50 local density = 50
PhysicsEntity.init(self, x, y, level, "dynamic", 0.2) PhysicsEntity.init(self, x, y, level, "dynamic", 0.2)
self.xsize = 5.5 * PIXELS_PER_METER self.xsize = 4.0 * PIXELS_PER_METER
self.ysize = 4.0 * PIXELS_PER_METER self.ysize = 4.3 * PIXELS_PER_METER
self.shape = love.physics.newRectangleShape(self.xsize, self.ysize) self.shape = love.physics.newRectangleShape(self.xsize, self.ysize)
PhysicsEntity.attachShape(self, density) PhysicsEntity.attachShape(self, density)
self.body:setX(self.x + self.xsize / 2) self.body:setX(self.x + self.xsize / 2)
self.body:setY(self.y - self.ysize / 2) self.body:setY(self.y - self.ysize / 2)
self.body:setLinearVelocity(100, 0) self.body:setLinearVelocity(100, 0)
self.body:setAngle(0) self.body:setAngle(0)
-- self.body:setMassData(self.xsize / 2, self.ysize / 2, 440 * PIXELS_PER_METER, -1.0)
-- self.body:setMassData(self.xsize / 2, 0, 430, 158194)
self.fixture:setFriction(0)
self.angle = 0 self.angle = 0
--x 16 y 17.200000762939 mass 3520 inertia 1942476.875
--x 0 y 0 mass 860.00006103516 inertia 158194.140625
-- local x, y, mass, inertia = self.body:getMassData()
print("x", x, "y", y, "mass", mass, "inertia", inertia)
for frame = 0,35 do for frame = 0,35 do
self.frames[frame] = love.graphics.newImage(string.format("resources/graphics/plane-%04d.png", frame)) self.frames[frame] = love.graphics.newImage(string.format("resources/graphics/plane-%04d.png", frame))
end end
@ -188,7 +197,7 @@ Plane = Class{
-- (* (Gg.V2.smul (fwd_frict_coeff *. fwd_vel ** 2.0 *. head_area) (V.unit (negate vel))) *) -- (* (Gg.V2.smul (fwd_frict_coeff *. fwd_vel ** 2.0 *. head_area) (V.unit (negate vel))) *)
-- (* (to_base (Gg.V2.v 0.0 0.0)); *) -- (* (to_base (Gg.V2.v 0.0 0.0)); *)
local airdrag = -fwd_frict_coeff * math.pow(fwd_vel, 2.0) * head_area local airdrag = -fwd_frict_coeff * math.pow(fwd_vel, 2.0) * head_area
rel_force("airdrag", airdrag, 0, 0, 0) rel_force("airdrag", airdrag, 0, 0, 0.2 * self.ysize)
-- Air friction (and drag?) opposes movement towards plane velocity normal also -- Air friction (and drag?) opposes movement towards plane velocity normal also
-- hdd drag -- hdd drag