place blocks

internal/game/logic.go

@@ -12,12 +12,21 @@ import (
 	"edgaru089.ml/go/gl01/internal/util"
 	"edgaru089.ml/go/gl01/internal/util/itype"
 	"edgaru089.ml/go/gl01/internal/world"
+	"edgaru089.ml/go/gl01/internal/world/blocks"
 	"edgaru089.ml/go/gl01/internal/world/worldgen"
 	"github.com/go-gl/glfw/v3.3/glfw"
 	"github.com/go-gl/mathgl/mgl64"
 	"github.com/inkyblackness/imgui-go/v4"
 )
 
+const (
+	PlayerBreakCooldown = 200 * time.Millisecond
+	PlayerPlaceCooldown = 200 * time.Millisecond
+)
+
+var placeId = [10]int{blocks.Stone, blocks.Dirt, blocks.Grass, blocks.LogOak, blocks.PlanksOak, blocks.LeavesOak, blocks.Debug, blocks.DebugDir, blocks.Bedrock, blocks.Water}
+var placei = 0
+
 var logs string
 
 type logger struct{}
@@ -43,6 +52,9 @@ func (g *Game) Init(win *glfw.Window) {
 		panic(err)
 	}
 
+	g.player.SetDatasetI("LastBreak", 0)
+	g.player.SetDatasetI("LastPlace", 0)
+
 	var seed int64 = time.Now().Unix()
 	gensync := make(chan struct{})
 	gensynccnt := 0
@@ -163,6 +175,18 @@ func (g *Game) Init(win *glfw.Window) {
 	win.SetScrollCallback(func(w *glfw.Window, xpos, ypos float64) {
 		if g.paused {
 			backend.MouseScrollCallback(xpos, ypos)
+		} else {
+			if ypos > 0 {
+				placei--
+			} else if ypos < 0 {
+				placei++
+			}
+			if placei < 0 {
+				placei += len(placeId)
+			}
+			if placei >= len(placeId) {
+				placei -= len(placeId)
+			}
 		}
 	})
 
@@ -172,6 +196,7 @@ const airAccel = 0.1
 
 // Update updates the game state, not necessarily in the main thread.
 func (g *Game) Update(win *glfw.Window, delta time.Duration) {
+	g.runtime += delta
 	backend.NewFrame()
 
 	clock := util.NewClock()
@@ -242,6 +267,42 @@ func (g *Game) Update(win *glfw.Window, delta time.Duration) {
 		g.player.SetSpeed(itype.Vec3d{})
 	}
 
+	if ok, bc, dir, _, _ := g.world.CastViewRay(io.ViewPos, io.ViewDir.Normalize(), 6); ok {
+		ba := g.world.Block(bc).Appearance(bc)
+		for _, r := range ba.Lookbox {
+			render.Framewire.PushBox(r.GrowEven(itype.Vec3d{0.03125, 0.03125, 0.03125}).Offset(bc.ToFloat64()).ToFloat32(), color.White)
+		}
+
+		// Break/Place block
+		if win.GetMouseButton(glfw.MouseButtonLeft) == glfw.Press && g.runtime-time.Duration(g.player.DatasetI("LastBreak")) >= PlayerBreakCooldown {
+			// Break
+			g.world.Break(bc)
+			g.player.SetDatasetI("LastBreak", int64(g.runtime))
+		} else if win.GetMouseButton(glfw.MouseButtonRight) == glfw.Press && g.runtime-time.Duration(g.player.DatasetI("LastPlace")) >= PlayerBreakCooldown {
+			// Place
+			// Check hitbox
+			tobehit := world.GetBlockBehaviour(placeId[placei]).Appearance(bc.Add(itype.DirectionVeci[dir]), 0, nil, g.world).Hitbox
+			if len(tobehit) == 0 {
+				tobehit = []itype.Boxd{{OffX: 0, OffY: 0, OffZ: 0, SizeX: 1, SizeY: 1, SizeZ: 1}}
+			}
+			canplace := true
+		outer:
+			for _, pb := range g.player.WorldHitbox() {
+				for _, b := range tobehit {
+					if ok, _ := b.Offset(bc.Add(itype.DirectionVeci[dir]).ToFloat64()).Intersect(pb); ok {
+						canplace = false
+						break outer
+					}
+				}
+			}
+
+			if canplace {
+				g.world.SetBlock(bc.Add(itype.DirectionVeci[dir]), placeId[placei], 0, nil)
+				g.player.SetDatasetI("LastPlace", int64(g.runtime))
+			}
+		}
+	}
+
 	io.Diagnostics.Times.Logic = clock.Restart()
 
 	imgui.ShowDemoWindow(nil)