CodingLand/pkg/main.go

package main

import (
	"git.solsynth.dev/highland/codingland/pkg/internal/entities"
	"git.solsynth.dev/highland/codingland/pkg/internal/land"
	"log"
	"runtime"

	"github.com/veandco/go-sdl2/sdl"
)

const (
	windowWidth  = 640
	windowHeight = 480
	playerSize   = 50
)

func init() {
	runtime.LockOSThread()
}

func main() {
	if err := sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		log.Fatalf("Failed to initialize SDL: %s", err)
	}
	defer sdl.Quit()

	window, err := sdl.CreateWindow("CodingLand", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, windowWidth, windowHeight, sdl.WINDOW_SHOWN)
	if err != nil {
		log.Fatalf("Failed to create window: %s", err)
	}
	defer window.Destroy()

	renderer, err := sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED|sdl.RENDERER_PRESENTVSYNC)
	if err != nil {
		log.Fatalf("Failed to create renderer: %s", err)
	}
	defer renderer.Destroy()

	root := &land.RootObject{}
	root.AddChild(&entities.Player{
		Position: land.Vector2D{X: windowWidth / 2, Y: windowHeight / 2},
		Size:     land.Vector2D{X: playerSize, Y: playerSize},
	})

	running := true
	for running {
		for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
			switch event.(type) {
			case *sdl.QuitEvent:
				running = false
			}
		}

		root.Update()

		renderer.SetDrawColor(0, 0, 0, 255)
		renderer.Clear()

		root.Draw(renderer)

		renderer.Present()
	}
}