Mothback/code/entities/player.lua

Player = Entity:New(x,y)


function Player:New(x,y)
	local o = Entity:New(x,y)

	o.type = "player"
	-- physics
	o.moveSpeed = 1.3 -- gameworld pixels
	o.zeroSpeed = 0.01 -- gameworld pixels
	o.move_x = 0 -- gameworld pixels

	o.airFriction = 0.01 -- gameworld pixels
	o.groundFriction = 0.3 -- gameworld pixels

	o.jumpImpulse = 3.5 -- gameworld pixels

	o.coyoteAmount = 5 -- int
	o.coyoteValue = 5 -- frames

	o.dashCooldownTime = 0.1 -- seconds
	o.dashCooldownTimer = 0 -- seconds

	-- dash values
	o.dashTimer = 0 -- seconds
	o.dashTime = 0.15 -- seconds
	o.dashDistance = 40 -- gameworld pixels
	o.dashSpeed = o.dashDistance / (o.dashTime*60) -- pixels
	o.dashCount = 1 -- int
	o.dashAmount = 10 -- int

	-- hook values
	o.hookAnchor = {
		x = nil,
		y = nil
	}

	o.lightRange = 40 -- screen pixels

	-- status
	o.isDashing = false
	o.isJumping = false
	o.isHooked = false
	o.isOnGround = true
	o.isOnLadder = false
	o.canJump = true
	o.canFall = true
	o.canFriction = true
	o.maskType = animation.moth_mask

	o.anchorRespawn = {
		x = o.pos.x,
		y = o.pos.y
	}

	-- sprite
	o.target_offset = {x = 0, y = 0}
	o.body = Animation:New(animation.nancy.idle)
	o.mask = Animation:New(animation.moth_mask.idle)
	o:centerOffset(o.body)
	o:getBoundingBox(o.body,0,3,-1,-3)

	-- lights
	o.light = Light:New(o.pos.x,o.pos.y,o.lightRange)

	table.insert(LoadedObjects.Entities,o)
	o.id = #LoadedObjects.Entities

	setmetatable(o, self)
	self.__index = self
	return o
end

function Player:Smart()
	self:LightAdjust(self.target_offset.x,self.target_offset.y)

	-- reset coyoteValue
	if self.isOnGround then
		self.coyoteValue = self.coyoteAmount
	elseif self.coyoteValue > 0 then
		self.coyoteValue = self.coyoteValue - 1
	end

	if self.dashTimer <= 0 then
		-- horizontal movement
		if Keybind:CheckDown(Keybind.move.left) then
			self.move_x = -self.moveSpeed
		elseif Keybind:CheckDown(Keybind.move.right) then
			self.move_x = self.moveSpeed
		end

		-- jump if on ground (coyotevalue)
		if Keybind:CheckDown(Keybind.move.jump) then
			if self.coyoteValue > 0 then
				self.vel.y = -self.jumpImpulse
				self.coyoteValue = 0
			end
		end
	end

	-- dash timer
	self.dashCooldownTimer = math.max(0,self.dashCooldownTimer - current_dt)

	-- try to dash
	if Keybind:CheckDown(Keybind.move.dash) then
		if self.dashCooldownTimer == 0
		and not self.isDashing
		and self.dashCount > 0 then
			self:Unhook()

			-- state player
			self.isDashing = true
			self.dashCount = self.dashCount - 1

			-- get dash direction
			local vertical = 0
			if Keybind:CheckDown(Keybind.move.down) then vertical = vertical + 1 end
			if Keybind:CheckDown(Keybind.move.up) then vertical = vertical - 1 end
			local horizontal = 0
			if Keybind:CheckDown(Keybind.move.right) then horizontal = horizontal + 1 end
			if Keybind:CheckDown(Keybind.move.left) then horizontal = horizontal - 1 end

			-- if no direction, then dash forward
			if horizontal == 0 and vertical == 0 then
				horizontal = self.sprite_flip.x
			end

			-- set dash values
			self.dashDirection = GetAngleFromVector(horizontal, vertical)
			self.dashTimer = self.dashTime
		end
	else
		-- not dashing!
		self.isDashing = false
	end

	if Keybind:CheckPressed(Keybind.move.hook) then
		if self.isHooked then
			self:Unhook()
		else
			local anchor = self:CheckNearest("hook_anchor",self.hookDistance)
			if anchor then
				self.isHooked = true
				self.hookDistance = anchor.hookDistance
				self.hookAnchor = {
					x = anchor.pos.x,
					y = anchor.pos.y
				}
			end
		end
	end
end

function Player:DoPhysics()
	if self.dashTimer <= 0 then
		if self.isOnGround then
			self.vel.x = self.vel.x * (1-self.groundFriction)
		else
			self.vel.x = self.vel.x * (1-self.airFriction)
		end

		self.vel.y = self.vel.y * (1-self.airFriction)

		if math.abs(self.vel.x) < self.zeroSpeed then self.vel.x = 0 end
	end

	-- reset state
	self.canFall = true
	self.isOnGround = false
	-- adjust timers
	self.dashTimer = self.dashTimer - current_dt

	-- DASH STATE
	if self.dashTimer > 0 then
		self.canFall = false
		-- dash particle
		local particle_data = {
			animation = self.body,
			sprite_tint = HEX2RGB("#fed100"),
			sprite_alpha = 0.5,
			sprite_flip = {
				x = self.sprite_flip.x,
				y = self.sprite_flip.y
			}
		}
		Particle:New(self.pos.x,self.pos.y,particle_data)
		self.dashCooldownTimer = self.dashCooldownTime
		-- dash movement
		self.vel.x = self.dashSpeed * math.cos(self.dashDirection)
		self.vel.y = self.dashSpeed * math.sin(self.dashDirection)
	end

	-- hook state
	if self.isHooked then
		local hook = Vector(self.pos.x, self.pos.y, self.hookAnchor.x, self.hookAnchor.y)
		if GetVectorValue(hook) > self.hookDistance then
			local hook_angle = GetAngleFromVector(hook[1],hook[2])-math.rad(180)
			if Keybind:CheckDown(Keybind.move.right) then
				hook_angle = hook_angle - math.rad(0.05)
				self.move_x = 0
			end
			if Keybind:CheckDown(Keybind.move.left) then
				hook_angle = hook_angle + math.rad(0.05)
				self.move_x = 0
			end

			local particle_data = {
				animation = self.body,
				sprite_tint = HEX2RGB("#fed100"),
				sprite_alpha = 0.5,
				sprite_flip = {
					x = self.sprite_flip.x,
					y = self.sprite_flip.y
				}
			}
			Particle:New(self.pos.x,self.pos.y,particle_data)

			local pos_x = self.hookAnchor.x + self.hookDistance * math.cos(hook_angle)
			local pos_y = self.hookAnchor.y + self.hookDistance * math.sin(hook_angle)
			self.vel.x = self.vel.x + pos_x - self.pos.x
			self.vel.y = self.vel.y + pos_y - self.pos.y
			self.pos.x = pos_x
			self.pos.y = pos_y
		end
	end


	if self.canFall then
		-- not in dash
		self.dashTimer = 0
		self.vel.y = self.vel.y + gravity
	end

	-- horizontal collision
	if not self:isCollidingAt(self.pos.x + self.vel.x + self.move_x, self.pos.y, LoadedObjects.Collisions) then
		self.pos.x = self.pos.x + self.vel.x + self.move_x
	else
		self.vel.x = 0
	end

	-- vertical collision
	if not self:isCollidingAt(self.pos.x, self.pos.y + self.vel.y, LoadedObjects.Collisions) then
		self.pos.y = self.pos.y + self.vel.y
	else
		if self.vel.y > 0 then
			self.isOnGround = true
			self.dashCount = self.dashAmount
		end
		self.vel.y = 0
	end

	-- if u collision w hazard, respawn
	if self:isCollidingAt(self.pos.x, self.pos.y, LoadedObjects.Hazards) then
		self:Respawn()
	end
end

function Player:Respawn()
	self.pos.x = self.anchorRespawn.x
	self.pos.y = self.anchorRespawn.y
end

function Player:HandleAnimation()
	-- flip sprite to look in the direction is moving
	if self.isHooked then
		if self.vel.x ~= 0 then
			self.sprite_flip.x = math.sign(self.vel.x)
		end
	elseif self.move_x ~= 0 then
		self.sprite_flip.x = math.sign(self.move_x)
	end

	-- animation priority
	if self.vel.y > 1.25 then
		self.body = self.body:ChangeTo(animation.nancy.fall)
		self.mask = self.mask:ChangeTo(self.maskType.fall)
	elseif self.vel.y < 0 then
		self.body = self.body:ChangeTo(animation.nancy.jump)
		self.mask = self.mask:ChangeTo(self.maskType.jump)
	elseif self.vel.x + self.move_x ~= 0 then
		self.body = self.body:ChangeTo(animation.nancy.run)
		self.mask = self.mask:ChangeTo(self.maskType.run)
	else
		self.body = self.body:ChangeTo(animation.nancy.idle)
		self.mask = self.mask:ChangeTo(self.maskType.idle)
	end

	-- special case: idle animation gets slower by time
	if self.body.anim_path == animation.nancy.idle.path then
		if self.body.anim_speed < 0.5 then
			self.body.anim_speed = self.body.anim_speed + 0.001
		end
	end

	if self.isHooked then
		love.graphics.line(
			-Camera.pos.x + self.pos.x,
			-Camera.pos.y + self.pos.y,
			-Camera.pos.x + self.hookAnchor.x,
			-Camera.pos.y + self.hookAnchor.y
		)
	end

	self.body:Animate()
	self:Draw(self.body)

	if self.dashCount > 0 then
		self:Draw(self.mask)
	end
	self.move_x = 0
end

function Player:Unhook()
	self.isHooked = false
	self.hookAnchor = nil
end