Initial commit

examples/models/billboard/main.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [models] example - drawing billboards")
+
+	camera := raylib.Camera{}
+	camera.Position = raylib.NewVector3(5.0, 4.0, 5.0)
+	camera.Target = raylib.NewVector3(0.0, 2.0, 0.0)
+	camera.Up = raylib.NewVector3(0.0, 1.0, 0.0)
+	camera.Fovy = 45.0
+
+	bill := raylib.LoadTexture("billboard.png")      // Our texture billboard
+	billPosition := raylib.NewVector3(0.0, 2.0, 0.0) // Position where draw billboard
+
+	raylib.SetCameraMode(camera, raylib.CameraOrbital) // Set an orbital camera mode
+
+	raylib.SetTargetFPS(60)
+
+	for !raylib.WindowShouldClose() {
+		raylib.UpdateCamera(&camera) // Update camera
+
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.Begin3dMode(camera)
+
+		raylib.DrawBillboard(camera, bill, billPosition, 2.0, raylib.White)
+
+		raylib.DrawGrid(10, 1.0) // Draw a grid
+
+		raylib.End3dMode()
+
+		raylib.EndDrawing()
+	}
+
+	raylib.UnloadTexture(bill) // Unload texture
+
+	raylib.CloseWindow()
+}

examples/models/box_collisions/main.go

@@ -0,0 +1,109 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [models] example - box collisions")
+
+	camera := raylib.Camera{}
+	camera.Position = raylib.NewVector3(10.0, 10.0, 10.0)
+	camera.Target = raylib.NewVector3(0.0, 0.0, 0.0)
+	camera.Up = raylib.NewVector3(0.0, 1.0, 0.0)
+	camera.Fovy = 45.0
+
+	playerPosition := raylib.NewVector3(0.0, 1.0, 2.0)
+	playerSize := raylib.NewVector3(1.0, 2.0, 1.0)
+	playerColor := raylib.Green
+
+	enemyBoxPos := raylib.NewVector3(-4.0, 1.0, 0.0)
+	enemyBoxSize := raylib.NewVector3(2.0, 2.0, 2.0)
+
+	enemySpherePos := raylib.NewVector3(4.0, 0.0, 0.0)
+	enemySphereSize := float32(1.5)
+
+	collision := false
+
+	raylib.SetTargetFPS(60)
+
+	for !raylib.WindowShouldClose() {
+		// Update
+
+		// Move player
+		if raylib.IsKeyDown(raylib.KeyRight) {
+			playerPosition.X += 0.2
+		} else if raylib.IsKeyDown(raylib.KeyLeft) {
+			playerPosition.X -= 0.2
+		} else if raylib.IsKeyDown(raylib.KeyDown) {
+			playerPosition.Z += 0.2
+		} else if raylib.IsKeyDown(raylib.KeyUp) {
+			playerPosition.Z -= 0.2
+		}
+
+		collision = false
+
+		// Check collisions player vs enemy-box
+		if raylib.CheckCollisionBoxes(
+			raylib.NewBoundingBox(
+				raylib.NewVector3(playerPosition.X-playerSize.X/2, playerPosition.Y-playerSize.Y/2, playerPosition.Z-playerSize.Z/2),
+				raylib.NewVector3(playerPosition.X+playerSize.X/2, playerPosition.Y+playerSize.Y/2, playerPosition.Z+playerSize.Z/2)),
+			raylib.NewBoundingBox(
+				raylib.NewVector3(enemyBoxPos.X-enemyBoxSize.X/2, enemyBoxPos.Y-enemyBoxSize.Y/2, enemyBoxPos.Z-enemyBoxSize.Z/2),
+				raylib.NewVector3(enemyBoxPos.X+enemyBoxSize.X/2, enemyBoxPos.Y+enemyBoxSize.Y/2, enemyBoxPos.Z+enemyBoxSize.Z/2)),
+		) {
+			collision = true
+		}
+
+		// Check collisions player vs enemy-sphere
+		if raylib.CheckCollisionBoxSphere(
+			raylib.NewBoundingBox(
+				raylib.NewVector3(playerPosition.X-playerSize.X/2, playerPosition.Y-playerSize.Y/2, playerPosition.Z-playerSize.Z/2),
+				raylib.NewVector3(playerPosition.X+playerSize.X/2, playerPosition.Y+playerSize.Y/2, playerPosition.Z+playerSize.Z/2)),
+			enemySpherePos,
+			enemySphereSize,
+		) {
+			collision = true
+		}
+
+		if collision {
+			playerColor = raylib.Red
+		} else {
+			playerColor = raylib.Green
+		}
+
+		// Draw
+
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.Begin3dMode(camera)
+
+		// Draw enemy-box
+		raylib.DrawCube(enemyBoxPos, enemyBoxSize.X, enemyBoxSize.Y, enemyBoxSize.Z, raylib.Gray)
+		raylib.DrawCubeWires(enemyBoxPos, enemyBoxSize.X, enemyBoxSize.Y, enemyBoxSize.Z, raylib.DarkGray)
+
+		// Draw enemy-sphere
+		raylib.DrawSphere(enemySpherePos, enemySphereSize, raylib.Gray)
+		raylib.DrawSphereWires(enemySpherePos, enemySphereSize, 16, 16, raylib.DarkGray)
+
+		// Draw player
+		raylib.DrawCubeV(playerPosition, playerSize, playerColor)
+
+		raylib.DrawGrid(10, 1.0) // Draw a grid
+
+		raylib.End3dMode()
+
+		raylib.DrawText("Move player with cursors to collide", 220, 40, 20, raylib.Gray)
+
+		raylib.DrawFPS(10, 10)
+
+		raylib.EndDrawing()
+	}
+
+	raylib.CloseWindow()
+}

examples/models/cubicmap/main.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [models] example - cubesmap loading and drawing")
+
+	camera := raylib.Camera{}
+	camera.Position = raylib.NewVector3(16.0, 14.0, 16.0)
+	camera.Target = raylib.NewVector3(0.0, 0.0, 0.0)
+	camera.Up = raylib.NewVector3(0.0, 1.0, 0.0)
+	camera.Fovy = 45.0
+
+	image := raylib.LoadImage("cubicmap.png")   // Load cubicmap image (RAM)
+	cubic := raylib.LoadTextureFromImage(image) // Convert image to texture to display (VRAM)
+	cubicmap := raylib.LoadCubicmap(image)      // Load cubicmap model (generate model from image)
+
+	// NOTE: By default each cube is mapped to one part of texture atlas
+	texture := raylib.LoadTexture("cubicmap_atlas.png") // Load map texture
+	cubicmap.Material.TexDiffuse = texture              // Set map diffuse texture
+
+	mapPosition := raylib.NewVector3(-16.0, 0.0, -8.0) // Set model position
+
+	raylib.UnloadImage(image) // Unload cubesmap image from RAM, already uploaded to VRAM
+
+	raylib.SetCameraMode(camera, raylib.CameraOrbital) // Set an orbital camera mode
+
+	raylib.SetTargetFPS(60)
+
+	for !raylib.WindowShouldClose() {
+		// Update
+
+		raylib.UpdateCamera(&camera) // Update camera
+
+		// Draw
+
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.Begin3dMode(camera)
+
+		raylib.DrawModel(cubicmap, mapPosition, 1.0, raylib.White)
+
+		raylib.End3dMode()
+
+		raylib.DrawTextureEx(cubic, raylib.NewVector2(float32(screenWidth-cubic.Width*4-20), 20), 0.0, 4.0, raylib.White)
+		raylib.DrawRectangleLines(screenWidth-cubic.Width*4-20, 20, cubic.Width*4, cubic.Height*4, raylib.Green)
+
+		raylib.DrawText("cubicmap image used to", 658, 90, 10, raylib.Gray)
+		raylib.DrawText("generate map 3d model", 658, 104, 10, raylib.Gray)
+
+		raylib.DrawFPS(10, 10)
+
+		raylib.EndDrawing()
+	}
+
+	raylib.UnloadTexture(cubic)   // Unload cubicmap texture
+	raylib.UnloadTexture(texture) // Unload map texture
+	raylib.UnloadModel(cubicmap)  // Unload map model
+
+	raylib.CloseWindow()
+}

examples/models/geometric_shapes/main.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [models] example - geometric shapes")
+
+	camera := raylib.Camera{}
+	camera.Position = raylib.NewVector3(0.1, 10.0, 10.0)
+	camera.Target = raylib.NewVector3(0.0, 0.0, 0.0)
+	camera.Up = raylib.NewVector3(0.0, 1.0, 0.0)
+	camera.Fovy = 45.0
+
+	raylib.SetTargetFPS(60)
+
+	for !raylib.WindowShouldClose() {
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.Begin3dMode(camera)
+
+		raylib.DrawCube(raylib.NewVector3(-4.0, 0.0, 2.0), 2.0, 5.0, 2.0, raylib.Red)
+		raylib.DrawCubeWires(raylib.NewVector3(-4.0, 0.0, 2.0), 2.0, 5.0, 2.0, raylib.Gold)
+		raylib.DrawCubeWires(raylib.NewVector3(-4.0, 0.0, -2.0), 3.0, 6.0, 2.0, raylib.Maroon)
+
+		raylib.DrawSphere(raylib.NewVector3(-1.0, 0.0, -2.0), 1.0, raylib.Green)
+		raylib.DrawSphereWires(raylib.NewVector3(1.0, 0.0, 2.0), 2.0, 16, 16, raylib.Lime)
+
+		raylib.DrawCylinder(raylib.NewVector3(4.0, 0.0, -2.0), 1.0, 2.0, 3.0, 4, raylib.SkyBlue)
+		raylib.DrawCylinderWires(raylib.NewVector3(4.0, 0.0, -2.0), 1.0, 2.0, 3.0, 4, raylib.DarkBlue)
+		raylib.DrawCylinderWires(raylib.NewVector3(4.5, -1.0, 2.0), 1.0, 1.0, 2.0, 6, raylib.Brown)
+
+		raylib.DrawCylinder(raylib.NewVector3(1.0, 0.0, -4.0), 0.0, 1.5, 3.0, 8, raylib.Gold)
+		raylib.DrawCylinderWires(raylib.NewVector3(1.0, 0.0, -4.0), 0.0, 1.5, 3.0, 8, raylib.Pink)
+
+		raylib.DrawGrid(10, 1.0) // Draw a grid
+
+		raylib.End3dMode()
+
+		raylib.DrawFPS(10, 10)
+
+		raylib.EndDrawing()
+	}
+
+	raylib.CloseWindow()
+}

examples/models/heightmap/main.go

@@ -0,0 +1,63 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap loading and drawing")
+
+	camera := raylib.Camera{}
+	camera.Position = raylib.NewVector3(18.0, 16.0, 18.0)
+	camera.Target = raylib.NewVector3(0.0, 0.0, 0.0)
+	camera.Up = raylib.NewVector3(0.0, 1.0, 0.0)
+	camera.Fovy = 45.0
+
+	image := raylib.LoadImage("heightmap.png")                        // Load heightmap image (RAM)
+	texture := raylib.LoadTextureFromImage(image)                     // Convert image to texture (VRAM)
+	hmap := raylib.LoadHeightmap(image, raylib.NewVector3(16, 8, 16)) // Load heightmap model with defined size
+	hmap.Material.TexDiffuse = texture                                // Set map diffuse texture
+	mapPosition := raylib.NewVector3(-8.0, 0.0, -8.0)                 // Set model position
+
+	raylib.UnloadImage(image) // Unload cubesmap image from RAM, already uploaded to VRAM
+
+	raylib.SetCameraMode(camera, raylib.CameraOrbital) // Set an orbital camera mode
+
+	raylib.SetTargetFPS(60)
+
+	for !raylib.WindowShouldClose() {
+		// Update
+
+		raylib.UpdateCamera(&camera) // Update camera
+
+		// Draw
+
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.Begin3dMode(camera)
+
+		// NOTE: Model is scaled to 1/4 of its original size (128x128 units)
+		raylib.DrawModel(hmap, mapPosition, 1.0, raylib.Red)
+
+		raylib.DrawGrid(20, 1.0)
+
+		raylib.End3dMode()
+
+		raylib.DrawTexture(texture, screenWidth-texture.Width-20, 20, raylib.White)
+		raylib.DrawRectangleLines(screenWidth-texture.Width-20, 20, texture.Width, texture.Height, raylib.Green)
+
+		raylib.DrawFPS(10, 10)
+
+		raylib.EndDrawing()
+	}
+
+	raylib.UnloadTexture(texture) // Unload map texture
+	raylib.UnloadModel(hmap)      // Unload map model
+
+	raylib.CloseWindow()
+}

examples/models/obj_loading/main.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [models] example - obj model loading")
+
+	camera := raylib.Camera{}
+	camera.Position = raylib.NewVector3(3.0, 3.0, 3.0)
+	camera.Target = raylib.NewVector3(0.0, 1.5, 0.0)
+	camera.Up = raylib.NewVector3(0.0, 1.0, 0.0)
+	camera.Fovy = 45.0
+
+	dwarf := raylib.LoadModel("dwarf.obj")             // Load OBJ model
+	texture := raylib.LoadTexture("dwarf_diffuse.png") // Load model texture
+
+	dwarf.Material.TexDiffuse = texture // Set dwarf model diffuse texture
+
+	position := raylib.NewVector3(0.0, 0.0, 0.0) // Set model position
+
+	raylib.SetTargetFPS(60)
+
+	for !raylib.WindowShouldClose() {
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.Begin3dMode(camera)
+
+		raylib.DrawModel(dwarf, position, 2.0, raylib.White) // Draw 3d model with texture
+
+		raylib.DrawGrid(10, 1.0) // Draw a grid
+
+		raylib.DrawGizmo(position) // Draw gizmo
+
+		raylib.End3dMode()
+
+		raylib.DrawText("(c) Dwarf 3D model by David Moreno", screenWidth-200, screenHeight-20, 10, raylib.Gray)
+
+		raylib.EndDrawing()
+	}
+
+	raylib.UnloadTexture(texture) // Unload texture
+	raylib.UnloadModel(dwarf)     // Unload model
+
+	raylib.CloseWindow()
+}