package components

import (
	coreobjects "github.com/DegustatorPonos/RuinesOfRafdolon/CoreObjects"
	rl "github.com/gen2brain/raylib-go/raylib"
)

// The scene implimetation that represents one playable scene
type World struct {
	Manager coreobjects.SceneManager
	Name string
	Floor []FloorTile

	Camera *rl.Camera2D
}

func (base *World) Create(manager coreobjects.SceneManager) {
	base.Manager = manager
}

func (base *World) Destroy() {
}

func (base *World) Update() {
	base.handleFreecam()
}

func (base *World) handleFreecam() {
	var speed = 150 * rl.GetFrameTime()
	var zoomSpeed = 0.2 * rl.GetFrameTime()
	if rl.IsKeyDown(rl.KeyW) {
		base.Camera.Target.Y -= speed
	}
	if rl.IsKeyDown(rl.KeyS) {
		base.Camera.Target.Y += speed
	}
	if rl.IsKeyDown(rl.KeyA) {
		base.Camera.Target.X -= speed
	}
	if rl.IsKeyDown(rl.KeyD) {
		base.Camera.Target.X += speed
	}
	if rl.IsKeyDown(rl.KeyEqual) {
		base.Camera.Zoom += zoomSpeed 
	}
	if rl.IsKeyDown(rl.KeyMinus) {
		base.Camera.Zoom -= zoomSpeed 
	}
}

func (base *World) Draw() {
	rl.BeginMode2D(*base.Camera)
	defer rl.EndMode2D()
	for _, v := range base.Floor {
		v.Draw()
	}
}

// The single texture drawn at level 0 of the world
type FloorTile struct {
	Position rl.Vector2
	Texture *rl.Texture2D
}

func (base *FloorTile) Draw() {
	rl.DrawTexture(
		*base.Texture,
		int32(base.Position.X), 
		int32(base.Position.Y),
		rl.White,
	)
}