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local camera = -1
local sphereMesh = -1
local ray = { { 0.5, 0, 4 }, { 0.1, 0, -1 } }
local rayCol = {}
local function setupWindow()
local monitor = 0
local mPos = RL.GetMonitorPosition( monitor )
local mSize = RL.GetMonitorSize( monitor )
local winSize = RL.GetScreenSize()
RL.SetWindowState( RL.FLAG_WINDOW_RESIZABLE )
RL.SetWindowState( RL.FLAG_VSYNC_HINT )
RL.SetWindowPosition( { mPos[1] + mSize[1] / 2 - winSize[1] / 2, mPos[2] + mSize[2] / 2 - winSize[2] / 2 } )
end
function ray_collision()
rayCol = RL.GetRayCollisionMesh( ray, sphereMesh, RL.MatrixIdentity() )
if rayCol ~= nil and rayCol.hit then
print( "hit", rayCol.hit )
print( "distance", rayCol.distance )
print( "point", rayCol.point[1], rayCol.point[2], rayCol.point[3] )
print( "normal", rayCol.normal[1], rayCol.normal[2], rayCol.normal[3] )
end
end
function RL.init()
setupWindow()
camera = RL.CreateCamera3D()
RL.SetCamera3DPosition( camera, { 0, 2, 4 } )
RL.SetCamera3DTarget( camera, { 0, 0, 0 } )
RL.SetCamera3DUp( camera, { 0, 1, 0 } )
sphereMesh = RL.GenMeshSphere( 1.0, 8, 10 )
ray_collision()
end
function RL.process( delta )
if RL.IsMouseButtonPressed( 0 ) then
ray = RL.GetMouseRay( RL.GetMousePosition(), camera )
ray_collision()
end
end
function RL.draw()
RL.ClearBackground( { 100, 150, 100 } )
RL.UpdateCamera3D( camera, RL.CAMERA_FIRST_PERSON )
RL.BeginMode3D( camera )
RL.DrawGrid( 8, 1 )
RL.DrawRay( ray, { 255, 100, 100 } )
RL.DrawMesh( sphereMesh, 0, RL.MatrixIdentity() )
RL.DrawSphereWires( rayCol.point, 0.05, 4, 8, RL.BLUE )
RL.DrawLine3D( rayCol.point, RL.Vector3Add( rayCol.point, rayCol.normal ), RL.GREEN )
RL.EndMode3D()
end
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