🎉 Initial Commit of Basic things like movement of player

pkg/internal/common/vector2d.go

@@ -0,0 +1,5 @@
+package common
+
+type Vector2D struct {
+	X, Y float64
+}

pkg/internal/entities/player.go

@@ -0,0 +1,38 @@
+package entities
+
+import (
+	"git.solsynth.dev/highland/codingland/pkg/internal/common"
+	"github.com/veandco/go-sdl2/sdl"
+)
+
+const (
+	Acceleration = 0.5
+	Friction     = 0.9
+)
+
+type Player struct {
+	Position common.Vector2D
+	Size     common.Vector2D
+	Velocity common.Vector2D
+}
+
+func (p *Player) Move(deltaX, deltaY float64) {
+	p.Velocity.X += deltaX * Acceleration
+	p.Velocity.Y += deltaY * Acceleration
+
+	p.Position.X += p.Velocity.X
+	p.Position.Y += p.Velocity.Y
+
+	p.Velocity.X *= Friction
+	p.Velocity.Y *= Friction
+}
+
+func (p *Player) Draw(pen *sdl.Renderer) {
+	pen.SetDrawColor(255, 255, 255, 255)
+	pen.FillRect(&sdl.Rect{
+		X: int32(p.Position.X),
+		Y: int32(p.Position.Y),
+		W: int32(p.Size.X),
+		H: int32(p.Size.Y),
+	})
+}

pkg/main.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"git.solsynth.dev/highland/codingland/pkg/internal/common"
+	"git.solsynth.dev/highland/codingland/pkg/internal/entities"
+	"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()
+
+	player := &entities.Player{
+		Position: common.Vector2D{X: windowWidth / 2, Y: windowHeight / 2},
+		Size:     common.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
+			}
+		}
+
+		keys := sdl.GetKeyboardState()
+		if keys[sdl.SCANCODE_UP] == 1 || keys[sdl.SCANCODE_W] == 1 {
+			player.Move(0, -1)
+		}
+		if keys[sdl.SCANCODE_DOWN] == 1 || keys[sdl.SCANCODE_S] == 1 {
+			player.Move(0, 1)
+		}
+		if keys[sdl.SCANCODE_LEFT] == 1 || keys[sdl.SCANCODE_A] == 1 {
+			player.Move(-1, 0)
+		}
+		if keys[sdl.SCANCODE_RIGHT] == 1 || keys[sdl.SCANCODE_D] == 1 {
+			player.Move(1, 0)
+		}
+
+		player.Move(0, 0)
+
+		renderer.SetDrawColor(0, 0, 0, 255)
+		renderer.Clear()
+
+		player.Draw(renderer)
+
+		renderer.Present()
+	}
+}