upload so it isnt lost now
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lustlion
205
data/scripts/entities/player.lua
Normal file
205
data/scripts/entities/player.lua
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player = entity:newEntity(x,y)
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function InitPlayer(id)
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player.health = 3
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player.coins = 0
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-- physics
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player.vel = {
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x = 0,
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y = 0
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}
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-- constants
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player.acc = 90
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player.friction = 20
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player.gravity = 9.81
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player.climbHeight = 3
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player.jumpForce = 5
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player.maxSpeed = 600
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player.jumpMaxSpeed = 9.5
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player.zeroSpeed = 0.001
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-- bools
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player.isJumping = false
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player.isOnGround = false
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player.isOnLadder = false
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player.canJump = true
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player.canFall = true
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player.canFriction = true
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-- sprite
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player.offset = {x = -8, y = -16}
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end
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function player:DoInput()
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-- PLATFORMER INPUT
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if self.isOnGround then
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-- apply friction
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-- horizontal input (slide~~)
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if love.keyboard.isDown('a',"left") then
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self.vel.x = self.vel.x - self.acc*current_dt
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end
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if love.keyboard.isDown('d',"right") then
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self.vel.x = self.vel.x + self.acc*current_dt
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end
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if self.canJump then
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-- vertical input (jump!)
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if love.keyboard.isDown("up", "w") and self.isJumping ~= true then
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self.vel.y = self.vel.y - self.jumpForce
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self.isOnGround = false
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self.isJumping = true
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end
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end
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end
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-- fall if down input on platforms
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if not isThereCollisionAt(
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self.pos.x,
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self.pos.y + self.vel.y
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) and not isThereLadderAt(
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self.pos.x,
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self.pos.y + self.vel.y
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) and isTherePlatformAt(
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self.pos.x,
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self.pos.y + self.vel.y
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) and love.keyboard.isDown("down", "s")
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then
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self.pos.y = self.pos.y + tileProperties.height/3
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self.isOnGround = false
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end
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end
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function player:HandleAnimation()
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-- flip sprite to look in the direction is moving
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if self.vel.x ~= 0 then self.flip.x = math.sign(self.vel.x) end
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-- animation manager
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if self.isOnLadder then
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self:LoadAnimation(animation.nancy.jump)
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elseif not self.isOnGround and self.isJumping and self.vel.y > 1.25 then
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self:LoadAnimation(animation.nancy.fall)
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elseif not self.isOnGround and self.vel.y < 0 then
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self:LoadAnimation(animation.nancy.jump)
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elseif self.vel.x ~= 0 then
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self:LoadAnimation(animation.nancy.run)
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else
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self:LoadAnimation(animation.nancy.idle)
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end
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-- special case: idle animation gets slower by time
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if self.anim_path == animation.nancy.idle.path then
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if self.anim_speed < 0.5 then self.anim_speed = self.anim_speed + 0.001 end
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end
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end
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function player:DoPhysics()
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-- reset physics resolution
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self.canFall = true
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self.canJump = true
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self.canFriction = true
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-- reset flags
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self.isOnGround = false
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self.isOnLadder = false
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-- truncate to max & min values
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if math.abs(self.vel.x) > self.maxSpeed then
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self.vel.x = self.maxSpeed * math.sign(self.vel.x)
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end
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if math.abs(self.vel.y) > self.maxSpeed then
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self.vel.y = self.maxSpeed * math.sign(self.vel.y)
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end
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if math.abs(self.vel.x) < self.zeroSpeed then
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self.vel.x = 0
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end
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if math.abs(self.vel.y) < self.zeroSpeed then
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self.vel.y = 0
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end
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-- if on air, say so!
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if self.vel.y > 5 then
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self.isJumping = true
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end
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-- if its on ground, then say so.
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if self.vel.y > 0 then
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if isThereAnyCollisionAt(
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self.pos.x,
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self.pos.y + self.vel.y
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) then
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self.isOnGround = true
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self.isJumping = false
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end
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end
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-- horizontal collisions
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if isThereAnyCollisionAt(self.pos.x + self.vel.x, self.pos.y) then
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-- checks for ladders
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if isThereLadderAt(self.pos.x + self.vel.x, self.pos.y)
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and self.vel.x ~= 0
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and not isThereLadderAt(self.pos.x, self.pos.y)
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then
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self.vel.y = 0
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self.vel.x = 0
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self.pos.y = self.pos.y - 4*game.scale * current_dt
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self.canFall = false
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self.canJump = false
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self.canFriction = false
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self.isOnLadder = true
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self.isOnGround = true
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end
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-- checks for slopes
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for i = 1, self.climbHeight do
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if not isThereCollisionAt(self.pos.x + self.vel.x, self.pos.y - i * game.scale)
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and self.isOnGround then
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self.pos.x = self.pos.x + self.vel.x
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self.pos.y = self.pos.y - i * game.scale
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self.canFriction = false
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break
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end
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end
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-- hey, you arent permanently stopped while collisioning, just lose a bit of force!
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if self.canFriction then
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self.vel.x = self.vel.x * (1 - math.min(current_dt * self.friction/15, 1))
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end
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else
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self.pos.x = self.pos.x + self.vel.x
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end
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-- vertical collision
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if self.vel.y > 0
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and isThereAnyCollisionAt(self.pos.x, self.pos.y + self.vel.y) then
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self.isOnGround = true
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self.isJumping = false
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self.vel.y = 0
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else
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self.pos.y = self.pos.y + self.vel.y
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end
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-- drop.
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if self.canFall then
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self.vel.y = self.vel.y + 2*self.gravity * current_dt
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end
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-- friction hard in ground, soft in air
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if self.isOnGround then
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self.vel.x = self.vel.x * (1 - math.min(current_dt * self.friction, 1))
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else
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self.vel.x = self.vel.x * (1 - math.min(current_dt * self.friction/20, 1))
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end
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end
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function player:newPlayer(x,y)
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local o = entity:newEntity(x,y)
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setmetatable(o, self)
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self.__index = self
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return o
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end
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