add core examples

2023-11-12 22:12:17 +02:00 · 2023-11-12 22:12:17 +02:00 · 34665bd091
commit 34665bd091
parent 1a9e976d4c
3 changed files with 310 additions and 0 deletions
--- a/examples/core/3d_camera_splitscreen/main.go
+++ b/examples/core/3d_camera_splitscreen/main.go
@ -0,0 +1,130 @@
+package main
+
+import (
+	rl "github.com/gen2brain/raylib-go/raylib"
+)
+
+var (
+	screenW    = int32(800)
+	screenH    = int32(450)
+	playerSize = float32(40)
+	cam1, cam2 rl.Camera3D
+)
+
+func main() {
+
+	rl.InitWindow(screenW, screenH, "raylib [core] example - 3d camera split screen")
+
+	cam1.Fovy = 45
+	cam1.Up.Y = 1
+	cam1.Target.Y = 1
+	cam1.Position.Z = -3
+	cam1.Position.Y = 0.5
+
+	cam2 = cam1
+	cam1.Position.Z = 3
+
+	screenCam1 := rl.LoadRenderTexture(screenW/2, screenH)
+	screenCam2 := rl.LoadRenderTexture(screenW/2, screenH)
+
+	splitScreenRec := rl.NewRectangle(0, 0, float32(screenCam1.Texture.Width), -float32(screenCam1.Texture.Height))
+
+	count := 5
+	spacing := float32(4)
+
+	rl.SetTargetFPS(60)
+
+	for !rl.WindowShouldClose() {
+
+		frameOffset := 10 * rl.GetFrameTime()
+
+		if rl.IsKeyDown(rl.KeyW) {
+			cam1.Position.Z -= frameOffset
+			cam1.Target.Z -= frameOffset
+		} else if rl.IsKeyDown(rl.KeyS) {
+			cam1.Position.Z += frameOffset
+			cam1.Target.Z += frameOffset
+		}
+		if rl.IsKeyDown(rl.KeyD) {
+			cam1.Position.X += frameOffset
+			cam1.Target.X += frameOffset
+		} else if rl.IsKeyDown(rl.KeyA) {
+			cam1.Position.X -= frameOffset
+			cam1.Target.X -= frameOffset
+		}
+
+		if rl.IsKeyDown(rl.KeyUp) {
+			cam2.Position.Z += frameOffset
+			cam2.Target.Z += frameOffset
+		} else if rl.IsKeyDown(rl.KeyDown) {
+			cam2.Position.Z -= frameOffset
+			cam2.Target.Z -= frameOffset
+		}
+		if rl.IsKeyDown(rl.KeyRight) {
+			cam2.Position.X -= frameOffset
+			cam2.Target.X -= frameOffset
+		} else if rl.IsKeyDown(rl.KeyLeft) {
+			cam2.Position.X += frameOffset
+			cam2.Target.X += frameOffset
+		}
+
+		rl.BeginTextureMode(screenCam1)
+		rl.ClearBackground(rl.SkyBlue)
+		rl.BeginMode3D(cam1)
+
+		rl.DrawPlane(rl.Vector3Zero(), rl.NewVector2(50, 50), rl.Beige)
+
+		for x := -float32(count) * spacing; x <= float32(count)*spacing; x += spacing {
+			for z := -float32(count) * spacing; z <= float32(count)*spacing; z += spacing {
+				rl.DrawCube(rl.NewVector3(x-0.5, 1.5, z), 1, 1, 1, rl.Lime)
+				rl.DrawCube(rl.NewVector3(x-0.5, 0.5, z), 0.25, 1, 0.25, rl.Brown)
+			}
+		}
+
+		rl.DrawCube(cam1.Position, 1, 1, 1, rl.Red)
+		rl.DrawCube(cam2.Position, 1, 1, 1, rl.Blue)
+
+		rl.EndMode3D()
+
+		rl.DrawRectangle(0, 0, screenW/2, 40, rl.Fade(rl.RayWhite, 0.8))
+		rl.DrawText("PLAYER 1 WASD KEYS", 10, 10, 20, rl.Maroon)
+		rl.EndTextureMode()
+
+		rl.BeginTextureMode(screenCam2)
+		rl.ClearBackground(rl.SkyBlue)
+		rl.BeginMode3D(cam2)
+
+		rl.DrawPlane(rl.Vector3Zero(), rl.NewVector2(50, 50), rl.Beige)
+
+		for x := -float32(count) * spacing; x <= float32(count)*spacing; x += spacing {
+			for z := -float32(count) * spacing; z <= float32(count)*spacing; z += spacing {
+				rl.DrawCube(rl.NewVector3(x, 1.5, z), 1, 1, 1, rl.Lime)
+				rl.DrawCube(rl.NewVector3(x, 0.5, z), 0.25, 1, 0.25, rl.Brown)
+			}
+		}
+
+		rl.DrawCube(cam1.Position, 1, 1, 1, rl.Red)
+		rl.DrawCube(cam2.Position, 1, 1, 1, rl.Blue)
+
+		rl.EndMode3D()
+
+		rl.DrawRectangle(0, 0, screenW/2, 40, rl.Fade(rl.RayWhite, 0.8))
+		rl.DrawText("PLAYER 2 ARROW KEYS", 10, 10, 20, rl.Maroon)
+		rl.EndTextureMode()
+
+		rl.BeginDrawing()
+		rl.ClearBackground(rl.Black)
+
+		rl.DrawTextureRec(screenCam1.Texture, splitScreenRec, rl.NewVector2(0, 0), rl.White)
+		rl.DrawTextureRec(screenCam2.Texture, splitScreenRec, rl.NewVector2(float32(screenW/2), 0), rl.White)
+		rl.DrawRectangle((screenW/2)-2, 0, 4, screenH, rl.LightGray)
+
+		rl.EndDrawing()
+
+	}
+
+	rl.UnloadRenderTexture(screenCam1)
+	rl.UnloadRenderTexture(screenCam2)
+
+	rl.CloseWindow()
+}