world view ray casting

internal/game/logic.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"time"
 
+	"edgaru089.ml/go/gl01/internal/igwrap"
 	"edgaru089.ml/go/gl01/internal/igwrap/backend"
 	"edgaru089.ml/go/gl01/internal/io"
 	"edgaru089.ml/go/gl01/internal/render"
@@ -249,6 +250,10 @@ func (g *Game) Update(win *glfw.Window, delta time.Duration) {
 	imgui.ShowDemoWindow(nil)
 	g.imgui()
 
+	if ok, bc, face, _, _ := g.world.CastViewRay(io.ViewPos, io.ViewDir.Normalize(), 10); ok {
+		igwrap.TextBackground("Looking At: (%d %d %d) facing %s", bc[0], bc[1], bc[2], itype.DirectionName[face])
+	}
+
 	io.Diagnostics.Times.GUI = clock.Restart()
 }