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66 lines
2.7 KiB
66 lines
2.7 KiB
-------------------------------------------------------------------------------------------
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--
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-- raylib [core] example - World to screen
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--
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-- This example has been created using raylib 1.6 (www.raylib.com)
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-- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
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--
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-- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
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--
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-------------------------------------------------------------------------------------------
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-- Initialization
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-------------------------------------------------------------------------------------------
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local screenWidth = 800
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local screenHeight = 450
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InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera free")
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-- Define the camera to look into our 3d world
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local camera = Camera(Vector3(0.0, 10.0, 10.0), Vector3(0.0, 0.0, 0.0), Vector3(0.0, 1.0, 0.0), 45.0)
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local cubePosition = Vector3(0.0, 0.0, 0.0)
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local cubeScreenPosition = Vector2(0, 0)
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SetCameraMode(camera, CameraMode.FREE) -- Set a free camera mode
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SetTargetFPS(60) -- Set our game to run at 60 frames-per-second
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----------------------------------------------------------------------------------------
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-- Main game loop
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while not WindowShouldClose() do -- Detect window close button or ESC key
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-- Update
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------------------------------------------------------------------------------------
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camera = 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 = GetWorldToScreen(Vector3(cubePosition.x, cubePosition.y + 2.5, cubePosition.z), camera)
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------------------------------------------------------------------------------------
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-- Draw
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------------------------------------------------------------------------------------
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BeginDrawing()
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ClearBackground(RAYWHITE)
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Begin3dMode(camera)
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DrawCube(cubePosition, 2.0, 2.0, 2.0, RED)
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DrawCubeWires(cubePosition, 2.0, 2.0, 2.0, MAROON)
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DrawGrid(10, 1.0)
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End3dMode()
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DrawText("Enemy: 100 / 100", cubeScreenPosition.x//1 - MeasureText("Enemy: 100 / 100", 20)//2, cubeScreenPosition.y//1, 20, BLACK)
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DrawText("Text is always on top of the cube", (screenWidth - MeasureText("Text is always on top of the cube", 20))//2, 25, 20, GRAY)
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EndDrawing()
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------------------------------------------------------------------------------------
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end
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-- De-Initialization
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----------------------------------------------------------------------------------------
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CloseWindow() -- Close window and OpenGL context
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----------------------------------------------------------------------------------------
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