102 lines
4.6 KiB
Lua
102 lines
4.6 KiB
Lua
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-------------------------------------------------------------------------------------------
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--
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-- raylib [core] example - Gestures Detection
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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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MAX_GESTURE_STRINGS = 20
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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 - gestures detection")
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local touchPosition = Vector2(0, 0)
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local touchArea = Rectangle(220, 10, screenWidth - 230, screenHeight - 20)
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local gesturesCount = 0
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local gestureStrings = {}
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for i = 1, MAX_GESTURE_STRINGS do gestureStrings[i] = "" end
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local currentGesture = Gestures.NONE
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local lastGesture = Gestures.NONE
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--SetGesturesEnabled(0b0000000000001001) -- Enable only some gestures to be detected
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SetTargetFPS(60)
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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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lastGesture = currentGesture
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currentGesture = GetGestureDetected()
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touchPosition = GetTouchPosition(0)
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if (CheckCollisionPointRec(touchPosition, touchArea) and (currentGesture ~= Gestures.NONE)) then
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if (currentGesture ~= lastGesture) then
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-- Store gesture string
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if (currentGesture == Gestures.TAP) then gestureStrings[gesturesCount] = "GESTURE TAP"
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elseif (currentGesture == Gestures.DOUBLETAP) then gestureStrings[gesturesCount] = "GESTURE DOUBLETAP"
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elseif (currentGesture == Gestures.HOLD) then gestureStrings[gesturesCount] = "GESTURE HOLD"
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elseif (currentGesture == Gestures.DRAG) then gestureStrings[gesturesCount] = "GESTURE DRAG"
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elseif (currentGesture == Gestures.SWIPE_RIGHT) then gestureStrings[gesturesCount] = "GESTURE SWIPE RIGHT"
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elseif (currentGesture == Gestures.SWIPE_LEFT) then gestureStrings[gesturesCount] = "GESTURE SWIPE LEFT"
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elseif (currentGesture == Gestures.SWIPE_UP) then gestureStrings[gesturesCount] = "GESTURE SWIPE UP"
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elseif (currentGesture == Gestures.SWIPE_DOWN) then gestureStrings[gesturesCount] = "GESTURE SWIPE DOWN"
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elseif (currentGesture == Gestures.PINCH_IN) then gestureStrings[gesturesCount] = "GESTURE PINCH IN"
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elseif (currentGesture == Gestures.PINCH_OUT) then gestureStrings[gesturesCount] = "GESTURE PINCH OUT"
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end
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gesturesCount = gesturesCount + 1
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-- Reset gestures strings
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if (gesturesCount >= MAX_GESTURE_STRINGS) then
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for i = 1, MAX_GESTURE_STRINGS do gestureStrings[i] = "\0" end
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gesturesCount = 0
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end
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end
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end
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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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DrawRectangleRec(touchArea, GRAY)
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DrawRectangle(225, 15, screenWidth - 240, screenHeight - 30, RAYWHITE)
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DrawText("GESTURES TEST AREA", screenWidth - 270, screenHeight - 40, 20, Fade(GRAY, 0.5))
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for i = 1, gesturesCount do
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if ((i - 1)%2 == 0) then DrawRectangle(10, 30 + 20*(i - 1), 200, 20, Fade(LIGHTGRAY, 0.5))
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else DrawRectangle(10, 30 + 20*(i - 1), 200, 20, Fade(LIGHTGRAY, 0.3)) end
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if (i < gesturesCount) then DrawText(gestureStrings[i], 35, 36 + 20*(i - 1), 10, DARKGRAY)
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else DrawText(gestureStrings[i], 35, 36 + 20*(i - 1), 10, MAROON) end
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end
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DrawRectangleLines(10, 29, 200, screenHeight - 50, GRAY)
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DrawText("DETECTED GESTURES", 50, 15, 10, GRAY)
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if (currentGesture ~= GESTURE_NONE) then DrawCircleV(touchPosition, 30, MAROON) end
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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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