Mothback/data/scripts/entities/player.lua

215 lines
5.2 KiB
Lua

Player = Entity:New(x,y)
function Player:New(x,y)
local o = Entity:New(x,y)
Player.health = 3
Player.coins = 0
-- physics
o.vel = {
x = 0,
y = 0
}
-- constants
o.acc = 45
o.friction = 20
o.gravity = 9.81
o.climbHeight = 4
o.jumpForce = 5
o.maxSpeed = 600
o.jumpMaxSpeed = 9.5
o.zeroSpeed = 0.001
o.lightRange = 20
-- status
o.isJumping = false
o.isOnGround = 0
o.coyoteValue = 5
o.isOnLadder = false
o.canJump = true
o.canFall = true
o.canFriction = true
-- sprite
o.sprite_offset = {x = 8, y = 16}
o.target_offset = {x = 0, y = 12}
-- lights
o.light = CreateLight(o.pos.x,o.pos.y,o.lightRange)
setmetatable(o, self)
self.__index = self
return o
end
function Player:Smart()
-- PLATFORMER INPUT
if self.isOnGround > 0 then
-- apply friction
-- horizontal input (slide~~)
if love.keyboard.isDown('a',"left") then
self.vel.x = self.vel.x - self.acc*current_dt
end
if love.keyboard.isDown('d',"right") then
self.vel.x = self.vel.x + self.acc*current_dt
end
if self.canJump then
-- vertical input (jump!)
if love.keyboard.isDown("up", "w") and self.isJumping ~= true then
self.vel.y = self.vel.y - self.jumpForce
self.isOnGround = 0
self.isJumping = true
end
end
end
-- fall if down input on platforms
if not isThereCollisionAt(
self.pos.x,
self.pos.y + self.vel.y
) and not isThereLadderAt(
self.pos.x,
self.pos.y + self.vel.y
) and isTherePlatformAt(
self.pos.x,
self.pos.y + self.vel.y
) and love.keyboard.isDown("down", "s")
then
self.pos.y = self.pos.y + tileProperties.height/3
self.isOnGround = 0
end
end
function Player:HandleAnimation()
-- move light to position, :D
self.light.pos.x = self.pos.x - self.target_offset.x
self.light.pos.y = self.pos.y - self.target_offset.y
-- flip sprite to look in the direction is moving
if self.vel.x ~= 0 then self.sprite_flip.x = math.sign(self.vel.x) end
-- animation manager
if self.isOnLadder then
self:LoadAnimation(animation.nancy.jump)
elseif self.isOnGround == 0 and self.isJumping and self.vel.y > 1.25 then
self:LoadAnimation(animation.nancy.fall)
elseif self.isOnGround == 0 and self.vel.y < 0 then
self:LoadAnimation(animation.nancy.jump)
elseif self.vel.x ~= 0 then
self:LoadAnimation(animation.nancy.run)
else
self:LoadAnimation(animation.nancy.idle)
end
-- special case: idle animation gets slower by time
if self.anim_path == animation.nancy.idle.path then
if self.anim_speed < 0.5 then self.anim_speed = self.anim_speed + 0.001 end
end
end
function Player:DoPhysics()
-- reset physics resolution
self.canFall = true
self.canJump = true
self.canFriction = true
-- reset flags
self.isOnLadder = false
-- truncate to max & min values
if math.abs(self.vel.x) > self.maxSpeed then
self.vel.x = self.maxSpeed * math.sign(self.vel.x)
end
if math.abs(self.vel.y) > self.maxSpeed then
self.vel.y = self.maxSpeed * math.sign(self.vel.y)
end
if math.abs(self.vel.x) < self.zeroSpeed then
self.vel.x = 0
end
if math.abs(self.vel.y) < self.zeroSpeed then
self.vel.y = 0
end
-- if on air, say so!
if self.vel.y > 5 then
self.isJumping = true
end
-- if its on ground, then say so.
if self.vel.y > 0 then
if isThereAnyCollisionAt(
self.pos.x,
self.pos.y + self.vel.y
) then
self.isOnGround = self.coyoteValue
self.isJumping = false
end
end
-- horizontal collisions
if isThereAnyCollisionAt(self.pos.x + self.vel.x, self.pos.y) then
-- checks for ladders
if isThereLadderAt(self.pos.x + self.vel.x, self.pos.y)
and self.vel.x ~= 0
and not isThereLadderAt(self.pos.x, self.pos.y)
then
self.vel.y = 0
self.vel.x = 0
self.pos.y = self.pos.y - 4 * current_dt
self.canFall = false
self.canJump = false
self.canFriction = false
self.isOnLadder = true
self.isOnGround = self.coyoteValue
end
-- checks for slopes
for i = 1, self.climbHeight do
if not isThereCollisionAt(self.pos.x + self.vel.x, self.pos.y - i)
and self.isOnGround > 0 then
self.pos.x = self.pos.x + self.vel.x * 4/5
self.pos.y = self.pos.y - i
self.canFriction = false
break
end
end
-- hey, you arent permanently stopped while collisioning, just lose a bit of force!
if self.canFriction then
self.vel.x = self.vel.x * (1 - math.min(current_dt * self.friction/15, 1))
end
else
self.pos.x = self.pos.x + self.vel.x
end
-- vertical collision
if self.vel.y > 0
and isThereAnyCollisionAt(self.pos.x, self.pos.y + self.vel.y) then
self.isOnGround = self.coyoteValue
self.isJumping = false
self.vel.y = 0
else
self.pos.y = self.pos.y + self.vel.y
self.isOnGround = math.max(self.isOnGround - 1, 0)
end
-- drop.
if self.canFall then
self.vel.y = self.vel.y + 2*self.gravity * current_dt
end
-- friction hard in ground, soft in air
if self.isOnGround > 0 then
self.vel.x = self.vel.x * (1 - math.min(current_dt * self.friction, 1))
else
self.vel.x = self.vel.x * (1 - math.min(current_dt * self.friction/20, 1))
end
end