Merge pull request #469 from Hultan/yaw_pitch_roll

New example: models/yaw_pitch_roll

examples/models/yaw_pitch_roll/main.go

@@ -0,0 +1,113 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - Plane rotations (yaw, pitch, roll)
+*
+*   Example originally created with raylib 1.8, last time updated with raylib 4.0
+*
+*   Example contributed by Berni (@Berni8k) and reviewed by Ramon Santamaria (@raysan5)
+*
+*   Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
+*   BSD-like license that allows static linking with closed source software
+*
+*   Copyright (c) 2017-2024 Berni (@Berni8k) and Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+package main
+
+import rl "github.com/gen2brain/raylib-go/raylib"
+
+const (
+	screenWidth  = 800
+	screenHeight = 450
+)
+
+func main() {
+	//SetConfigFlags(FLAG_MSAA_4X_HINT | FLAG_WINDOW_HIGHDPI)
+	title := "raylib [models] example - plane rotations (yaw, pitch, roll)"
+	rl.InitWindow(screenWidth, screenHeight, title)
+
+	camera := rl.Camera{
+		Position: rl.Vector3{
+			Y: 50.0,
+			Z: -120.0,
+		}, // Camera position perspective
+		Target:     rl.Vector3{},         // Camera looking at point
+		Up:         rl.Vector3{Y: 1.0},   // Camera up vector (rotation towards target)
+		Fovy:       30.0,                 // Camera field-of-view Y
+		Projection: rl.CameraPerspective, // Camera type
+	}
+	model := rl.LoadModel("plane.obj")                             // Load model
+	texture := rl.LoadTexture("plane_diffuse.png")                 // Load model texture
+	rl.SetMaterialTexture(model.Materials, rl.MapDiffuse, texture) // Set map diffuse texture
+
+	var pitch, roll, yaw float32
+
+	rl.SetTargetFPS(60) // Set our game to run at 60 frames-per-second
+
+	// Main game loop
+	for !rl.WindowShouldClose() { // Detect window close button or ESC key
+		// Update
+
+		// Plane pitch (x-axis) controls
+		pitch = controlPlane(pitch, 0.6, rl.KeyDown, rl.KeyUp)
+		// Plane yaw (y-axis) controls
+		roll = controlPlane(roll, 1.0, rl.KeyLeft, rl.KeyRight)
+		// Plane roll (z-axis) controls
+		yaw = controlPlane(yaw, 1.0, rl.KeyA, rl.KeyS)
+
+		// Transformation matrix for rotations
+		rotationV := rl.Vector3{
+			X: rl.Deg2rad * pitch,
+			Y: rl.Deg2rad * yaw,
+			Z: rl.Deg2rad * roll,
+		}
+		model.Transform = rl.MatrixRotateXYZ(rotationV)
+
+		// Draw
+		rl.BeginDrawing()
+
+		rl.ClearBackground(rl.RayWhite)
+
+		// Draw 3D model (recommended to draw 3D always before 2D)
+		rl.BeginMode3D(camera)
+
+		// Draw 3d model with texture
+		rl.DrawModel(model, rl.Vector3{Y: -8.0}, 1.0, rl.White)
+		rl.DrawGrid(10, 10.0)
+
+		rl.EndMode3D()
+
+		// Draw controls info
+		rl.DrawRectangle(30, 370, 260, 70, rl.Fade(rl.Green, 0.5))
+		rl.DrawRectangleLines(30, 370, 260, 70, rl.Fade(rl.DarkGreen, 0.5))
+		rl.DrawText("Pitch controlled with: KEY_UP / KEY_DOWN", 40, 380, 10, rl.DarkGray)
+		rl.DrawText("Roll controlled with: KEY_LEFT / KEY_RIGHT", 40, 400, 10, rl.DarkGray)
+		rl.DrawText("Yaw controlled with: KEY_A / KEY_S", 40, 420, 10, rl.DarkGray)
+
+		rl.DrawText("(c) WWI Plane Model created by GiaHanLam", screenWidth-240, screenHeight-20, 10, rl.DarkGray)
+
+		rl.EndDrawing()
+	}
+
+	// De-Initialization
+	rl.UnloadModel(model)     // Unload model data
+	rl.UnloadTexture(texture) // Unload texture data
+
+	rl.CloseWindow() // Close window and OpenGL context
+}
+
+func controlPlane(ctrl, value float32, key1, key2 int32) float32 {
+	if rl.IsKeyDown(key1) {
+		ctrl -= value
+	} else if rl.IsKeyDown(key2) {
+		ctrl += value
+	} else {
+		if ctrl > 0.0 {
+			ctrl -= value / 2
+		} else if ctrl < 0.0 {
+			ctrl += value / 2
+		}
+	}
+	return ctrl
+}