Initial commit

2022-01-20 21:58:50 +08:00
commit b44d41ec66
86 changed files with 5415 additions and 0 deletions
--- a/internal/game/logic.go.old
+++ b/internal/game/logic.go.old
@@ -0,0 +1,115 @@
+package game
+
+import (
+	"time"
+
+	"github.com/Edgaru089/gl01/internal/render"
+	"github.com/Edgaru089/gl01/internal/util/itype"
+	"github.com/Edgaru089/gl01/internal/world"
+	"github.com/Edgaru089/gl01/internal/world/worldgen"
+	"github.com/go-gl/gl/all-core/gl"
+	"github.com/go-gl/glfw/v3.3/glfw"
+	"github.com/go-gl/mathgl/mgl32"
+)
+
+// Init initializes the game.
+func (g *Game) Init(win *glfw.Window) {
+
+	g.world = world.NewWorld()
+	g.view = &render.View{}
+	g.worldrender = &render.WorldRenderer{}
+
+	var seed int64 = time.Now().Unix()
+	for i := -2; i <= 3; i++ {
+		for j := -2; j <= 3; j++ {
+			c := &world.Chunk{}
+			g.world.SetChunk(i, j, c)
+			worldgen.Chunk(c, g.world, seed)
+		}
+	}
+
+	width, height := win.GetSize()
+	g.view.Aspect(float32(width)/float32(height)).FovY(60).LookAt(g.cameraPos.ToFloat32(), g.rotY, g.rotZ)
+
+	err := g.worldrender.Init(g.world)
+	if err != nil {
+		panic(err)
+	}
+
+	g.fbSize[0], g.fbSize[1] = win.GetFramebufferSize()
+	win.SetSizeCallback(func(w *glfw.Window, width, height int) {
+		win.SetCursorPos(float64(width)/2, float64(height)/2)
+		g.view.Aspect(float32(width) / float32(height))
+		g.fbSize[0], g.fbSize[1] = w.GetFramebufferSize()
+	})
+
+	err = render.Framewire.Init()
+	if err != nil {
+		panic(err)
+	}
+
+	win.SetCursorPos(float64(width)/2, float64(height)/2)
+
+	win.SetInputMode(glfw.CursorMode, glfw.CursorDisabled)
+	win.SetCursorPosCallback(func(w *glfw.Window, xpos, ypos float64) {
+		width, height := w.GetSize()
+		centerX, centerY := float64(width)/2, float64(height)/2
+		deltaX, deltaY := xpos-centerX, ypos-centerY
+		g.rotY -= float32(deltaX / 10)
+		g.rotZ -= float32(deltaY / 10)
+		if g.rotZ > 89.9 {
+			g.rotZ = 89.9
+		}
+		if g.rotZ < -89.9 {
+			g.rotZ = -89.9
+		}
+		win.SetCursorPos(centerX, centerY)
+	})
+}
+
+// Update updates the game state, not necessarily in the main thread.
+func (g *Game) Update(win *glfw.Window, delta time.Duration) {
+	if win.GetKey(glfw.KeyLeft) == glfw.Press {
+		g.rotY += float32(delta.Seconds()) * 100
+	}
+	if win.GetKey(glfw.KeyRight) == glfw.Press {
+		g.rotY -= float32(delta.Seconds()) * 100
+	}
+	if win.GetKey(glfw.KeyUp) == glfw.Press {
+		g.rotZ += float32(delta.Seconds()) * 100
+		if g.rotZ > 89.9 {
+			g.rotZ = 89.9
+		}
+	}
+	if win.GetKey(glfw.KeyDown) == glfw.Press {
+		g.rotZ -= float32(delta.Seconds()) * 100
+		if g.rotZ < -89.9 {
+			g.rotZ = -89.9
+		}
+	}
+
+	forward := itype.Vec3f(mgl32.Rotate3DY(mgl32.DegToRad(g.rotY)).Mul3(mgl32.Rotate3DZ(mgl32.DegToRad(g.rotZ))).Mul3x1(mgl32.Vec3{1, 0, 0})).ToFloat64().Multiply(delta.Seconds() * 8)
+	right := forward.Cross(itype.Vec3d{0, 1, 0})
+	right = right.Multiply(1 / right.Length()).Multiply(delta.Seconds() * 8)
+	if win.GetKey(glfw.KeyW) == glfw.Press {
+		g.cameraPos = g.cameraPos.Add(forward)
+	}
+	if win.GetKey(glfw.KeyS) == glfw.Press {
+		g.cameraPos = g.cameraPos.Add(forward.Negative())
+	}
+	if win.GetKey(glfw.KeyD) == glfw.Press {
+		g.cameraPos = g.cameraPos.Add(right)
+	}
+	if win.GetKey(glfw.KeyA) == glfw.Press {
+		g.cameraPos = g.cameraPos.Add(right.Negative())
+	}
+
+	g.view.LookAt(g.cameraPos.ToFloat32(), g.rotY, g.rotZ)
+}
+
+// Render, called with a OpenGL context, renders the game.
+func (g *Game) Render() {
+	gl.Viewport(0, 0, int32(g.fbSize[0]), int32(g.fbSize[1]))
+	g.worldrender.Render(g.world, g.view)
+	render.Framewire.Render(g.view)
+}