99 lines
2.1 KiB
Lua
99 lines
2.1 KiB
Lua
local Player = {}
|
|
|
|
local function vec2(x, y)
|
|
return function()
|
|
return { x = x, y = y }
|
|
end
|
|
end
|
|
|
|
local function vec2_length(v)
|
|
return math.sqrt(v().x * v().x + v().y * v().y)
|
|
end
|
|
|
|
local function vec2_add(v1, v2)
|
|
return vec2(v1().x + v2().x, v1().y + v2().y)
|
|
end
|
|
|
|
local function vec2_normalize(v)
|
|
local length = vec2_length(v)
|
|
if (length == 0) then return vec2(0, 0) end
|
|
return vec2(v().x / length, v().y / length)
|
|
end
|
|
|
|
local function vec2_scale(v, factor)
|
|
return vec2(v().x * factor, v().y * factor)
|
|
end
|
|
|
|
local function vec2_to_string(v)
|
|
return "{" .. v().x .. ", " .. v().y .. "}"
|
|
end
|
|
|
|
function Player:init()
|
|
self.position = vec2(0, 0)
|
|
self.velocity = vec2(0, 0)
|
|
end
|
|
|
|
function Player:update(dt)
|
|
local speed = 30
|
|
local friction = 0.05
|
|
local acc = vec2(0, 0)
|
|
|
|
if (love.keyboard.isDown('w')) then
|
|
acc = vec2_add(acc, vec2(0, -1))
|
|
end
|
|
if (love.keyboard.isDown('a')) then
|
|
acc = vec2_add(acc, vec2(-1, 0))
|
|
end
|
|
if (love.keyboard.isDown('d')) then
|
|
acc = vec2_add(acc, vec2(1, 0))
|
|
end
|
|
if (love.keyboard.isDown('s')) then
|
|
acc = vec2_add(acc, vec2(0, 1))
|
|
end
|
|
|
|
acc = vec2_scale(vec2_normalize(acc), speed * dt)
|
|
self.velocity = vec2_add(self.velocity, acc)
|
|
self.position = vec2_add(self.position, self.velocity)
|
|
|
|
|
|
self.velocity = vec2_scale(self.velocity, 1 - friction)
|
|
|
|
-- print(vec2_length(self.velocity))
|
|
end
|
|
|
|
require "lib.asset_bundle"
|
|
require "lib.entity"
|
|
require "lib.vec3"
|
|
|
|
|
|
Deer = nil
|
|
|
|
function love.load()
|
|
AssetBundle:load()
|
|
Deer = Entity('deer')
|
|
Deer.position = Vec3 { 200, 200, 0 }
|
|
Deer.sprite.playing = "walk_e"
|
|
end
|
|
|
|
local lastDir
|
|
function love.update(dt)
|
|
local mouse = Vec3 { love.mouse.getPosition() }
|
|
if (mouse) then Deer:lookAt(mouse) end
|
|
|
|
if (lastDir and lastDir ~= Deer:namedDirection()) then
|
|
print(Deer:namedDirection())
|
|
end
|
|
|
|
lastDir = Deer:namedDirection()
|
|
Deer:update(dt)
|
|
end
|
|
|
|
function love.draw()
|
|
love.graphics.draw(Deer.sprite:getTexture(), Deer.sprite:getQuad(), Deer.position.x, Deer.position.y, Deer.direction,
|
|
4, 4, 32, 32)
|
|
end
|
|
|
|
function love.conf(t)
|
|
t.console = true
|
|
end
|