50 lines
1.5 KiB
Go
50 lines
1.5 KiB
Go
package main
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import (
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rl "git.terah.dev/UnrealXR/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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rl.InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera free")
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camera := rl.Camera{}
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camera.Position = rl.NewVector3(10.0, 10.0, 10.0) // Camera position
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camera.Target = rl.NewVector3(0.0, 0.0, 0.0) // Camera looking at point
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camera.Up = rl.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 := rl.NewVector3(0.0, 0.0, 0.0)
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cubeScreenPosition := rl.Vector2{}
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rl.SetTargetFPS(60)
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for !rl.WindowShouldClose() {
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rl.UpdateCamera(&camera, rl.CameraFree) // Update camera with free camera mode
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// Calculate cube screen space position (with a little offset to be in top)
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cubeScreenPosition = rl.GetWorldToScreen(rl.NewVector3(cubePosition.X, cubePosition.Y+2.5, cubePosition.Z), camera)
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rl.BeginDrawing()
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rl.ClearBackground(rl.RayWhite)
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rl.BeginMode3D(camera)
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rl.DrawCube(cubePosition, 2.0, 2.0, 2.0, rl.Red)
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rl.DrawCubeWires(cubePosition, 2.0, 2.0, 2.0, rl.Maroon)
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rl.DrawGrid(10, 1.0)
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rl.EndMode3D()
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rl.DrawText("Enemy: 100 / 100", int32(cubeScreenPosition.X)-rl.MeasureText("Enemy: 100 / 100", 20)/2, int32(cubeScreenPosition.Y), 20, rl.Black)
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rl.DrawText("Text is always on top of the cube", (screenWidth-rl.MeasureText("Text is always on top of the cube", 20))/2, 25, 20, rl.Gray)
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rl.EndDrawing()
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}
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rl.CloseWindow()
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}
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