52 lines
1.7 KiB
Go
52 lines
1.7 KiB
Go
package main
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import (
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"github.com/gen2brain/raylib-go/raylib"
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)
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func main() {
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screenWidth := int32(800)
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screenHeight := int32(450)
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raylib.InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera free")
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camera := raylib.Camera{}
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camera.Position = raylib.NewVector3(10.0, 10.0, 10.0) // Camera position
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camera.Target = raylib.NewVector3(0.0, 0.0, 0.0) // Camera looking at point
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camera.Up = raylib.NewVector3(0.0, 1.0, 0.0) // Camera up vector (rotation towards target)
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camera.Fovy = 45.0 // Camera field-of-view Y
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cubePosition := raylib.NewVector3(0.0, 0.0, 0.0)
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cubeScreenPosition := raylib.Vector2{}
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raylib.SetCameraMode(camera, raylib.CameraFree) // Set a free camera mode
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raylib.SetTargetFPS(60)
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for !raylib.WindowShouldClose() {
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raylib.UpdateCamera(&camera) // Update camera
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// Calculate cube screen space position (with a little offset to be in top)
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cubeScreenPosition = raylib.GetWorldToScreen(raylib.NewVector3(cubePosition.X, cubePosition.Y+2.5, cubePosition.Z), camera)
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raylib.BeginDrawing()
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raylib.ClearBackground(raylib.RayWhite)
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raylib.Begin3dMode(camera)
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raylib.DrawCube(cubePosition, 2.0, 2.0, 2.0, raylib.Red)
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raylib.DrawCubeWires(cubePosition, 2.0, 2.0, 2.0, raylib.Maroon)
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raylib.DrawGrid(10, 1.0)
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raylib.End3dMode()
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raylib.DrawText("Enemy: 100 / 100", int32(cubeScreenPosition.X)-raylib.MeasureText("Enemy: 100 / 100", 20)/2, int32(cubeScreenPosition.Y), 20, raylib.Black)
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raylib.DrawText("Text is always on top of the cube", (screenWidth-raylib.MeasureText("Text is always on top of the cube", 20))/2, 25, 20, raylib.Gray)
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raylib.EndDrawing()
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}
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raylib.CloseWindow()
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}
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