package gameobjects

import (
	"github.com/faiface/pixel"
	"github.com/faiface/pixel/pixelgl"
	//"fmt"
)

type Player struct {
	PlayerVec   pixel.Vec
	sprFrame    int
	spriteSheet pixel.Picture
	sprFrames   []pixel.Rect
	sprite      *pixel.Sprite
	speed       float64
	dir         int
	animation   Animate
}

func NewPlayer(win *pixelgl.Window, spriteSheet pixel.Picture) Player {
	var p Player
	p.PlayerVec = pixel.Vec{
		X: win.Bounds().Max.X / 2,
		Y: win.Bounds().Max.Y / 2,
	}
	p.sprFrame = 9
	p.spriteSheet = spriteSheet
	p.sprFrames = createSpriteFrames(spriteSheet)
	p.animation = NewAnimation(p.spriteSheet, p.sprFrames)
	//p.sprite = pixel.NewSprite(spriteSheet, p.sprFrames[p.sprFrame])
	p.speed = 10.0
	return p
}

func (p *Player) Update(win *pixelgl.Window, dt int64) {
	var vecX, vecY float64 = 0, 0
	speed := p.speed

	if win.Pressed(pixelgl.KeyA) { //left
		p.sprFrame = 6
		p.dir = 2
		vecX -= speed
	}
	if win.Pressed(pixelgl.KeyD) { //Right
		p.sprFrame = 3
		p.dir = 3
		vecX += speed
	}
	if win.Pressed(pixelgl.KeyS) { //Down
		p.sprFrame = 9
		p.dir = 1
		vecY -= speed
	}
	if win.Pressed(pixelgl.KeyW) { //up
		p.sprFrame = 0
		p.dir = 0
		vecY += speed
	}
	if vecY == 0 && vecX == 0 {
		p.animation.Idle = true
	} else {
		p.animation.Idle = false
	}
	//p.sprite.Set(p.spriteSheet, p.sprFrames[p.sprFrame])
	p.animation.Dir = p.dir
	p.animation.Update(dt)

	p.PlayerVec.X += vecX
	p.PlayerVec.Y += vecY
}

func (p *Player) Render(win *pixelgl.Window) { //include batch later
	//p.sprite.Draw(win, pixel.IM.Scaled(pixel.ZV, 4).Moved(p.PlayerVec))
	p.animation.Render(win, p.PlayerVec)
}

func createSpriteFrames(spriteSheet pixel.Picture) []pixel.Rect {
	var sprFrames []pixel.Rect
	var frameHeight, frameWidth float64 = 96, 96
	for y := spriteSheet.Bounds().Min.Y; y < frameHeight*4; y += 96 {
		for x := spriteSheet.Bounds().Min.X; x < frameWidth*3; x += 96 {
			sprFrames = append(sprFrames, pixel.R(x, y, x+96, y+96)) // (x, y, width, height) of frame
		}
	}
	return sprFrames
}