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Diffstat (limited to 'examples/core_3d_picking.lua')
| -rw-r--r-- | examples/core_3d_picking.lua | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/examples/core_3d_picking.lua b/examples/core_3d_picking.lua new file mode 100644 index 00000000..f3f28530 --- /dev/null +++ b/examples/core_3d_picking.lua @@ -0,0 +1,96 @@ +------------------------------------------------------------------------------------------- +-- +-- raylib [core] example - Picking in 3d mode +-- +-- This example has been created using raylib 1.6 (www.raylib.com) +-- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details) +-- +-- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5) +-- +------------------------------------------------------------------------------------------- + +-- Initialization +------------------------------------------------------------------------------------------- +local screenWidth = 800 +local screenHeight = 450 + +InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d picking") + +-- Define the camera to look into our 3d world +local camera = {} +camera.position = Vector3(0.0, 10.0, 10.0) -- Camera position +camera.target = Vector3(0.0, 0.0, 0.0) -- Camera looking at point +camera.up = Vector3(0.0, 1.0, 0.0) -- Camera up vector (rotation towards target) +camera.fovy = 45.0 -- Camera field-of-view Y + +local cubePosition = Vector3(0.0, 1.0, 0.0) +local cubeSize = Vector3(2.0, 2.0, 2.0) + +local ray = Ray(Vector3(0, 0, 0), Vector3(0, 0, 0)) -- Picking line ray + +local collision = false + +SetCameraMode(CameraMode.FREE) -- Set a free camera mode +SetCameraPosition(camera.position) -- Set internal camera position to match our camera position +SetCameraFovy(camera.fovy) -- Set internal camera field-of-view Y + +SetTargetFPS(60) -- Set our game to run at 60 frames-per-second +------------------------------------------------------------------------------------------- + +-- Main game loop +while not WindowShouldClose() do -- Detect window close button or ESC key + -- Update + --------------------------------------------------------------------------------------- + UpdateCamera(camera) -- Update internal camera and our camera + + if (IsMouseButtonPressed(MOUSE.LEFT_BUTTON)) then + -- NOTE: This function is NOT WORKING properly! + ray = GetMouseRay(GetMousePosition(), camera) + + -- Check collision between ray and box + collision = CheckCollisionRayBox(ray, + (BoundingBox){(Vector3){ cubePosition.x - cubeSize.x/2, cubePosition.y - cubeSize.y/2, cubePosition.z - cubeSize.z/2 }, + (Vector3){ cubePosition.x + cubeSize.x/2, cubePosition.y + cubeSize.y/2, cubePosition.z + cubeSize.z/2 }}) + end + --------------------------------------------------------------------------------------- + + -- Draw + --------------------------------------------------------------------------------------- + BeginDrawing() + + ClearBackground(RAYWHITE) + + Begin3dMode(camera) + + if (collision) then + DrawCube(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, RED) + DrawCubeWires(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, MAROON) + + DrawCubeWires(cubePosition, cubeSize.x + 0.2, cubeSize.y + 0.2, cubeSize.z + 0.2, GREEN) + else + DrawCube(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, GRAY) + DrawCubeWires(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, DARKGRAY) + end + + DrawRay(ray, MAROON) + + DrawGrid(10, 1.0) + + End3dMode() + + DrawText("Try selecting the box with mouse!", 240, 10, 20, DARKGRAY) + + if (collision) then + DrawText("BOX SELECTED", (screenWidth - MeasureText("BOX SELECTED", 30))/2, screenHeight*0.1, 30, GREEN) + end + + DrawFPS(10, 10) + + EndDrawing() + --------------------------------------------------------------------------------------- +end + +-- De-Initialization +------------------------------------------------------------------------------------------- +CloseWindow() -- Close window and OpenGL context +-------------------------------------------------------------------------------------------
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