Add raylib lua examples

1 files changed, 102 insertions, 0 deletions

diff --git a/examples/core_gestures_detection.lua b/examples/core_gestures_detection.lua
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+++ b/examples/core_gestures_detection.lua
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+-------------------------------------------------------------------------------------------
+--
+--  raylib [core] example - Gestures Detection
+--
+--  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)
+--
+-------------------------------------------------------------------------------------------
+
+MAX_GESTURE_STRINGS = 20
+
+-- Initialization
+-------------------------------------------------------------------------------------------
+local screenWidth = 800
+local screenHeight = 450
+
+InitWindow(screenWidth, screenHeight, "raylib [core] example - gestures detection")
+
+local touchPosition = Vector2(0, 0)
+local touchArea = Rectangle(220, 10, screenWidth - 230, screenHeight - 20)
+
+local gesturesCount = 0
+local gestureStrings = {}
+
+for i = 1, MAX_GESTURE_STRINGS do gestureStrings[i] = "" end
+
+local currentGesture = Gestures.NONE
+local lastGesture = Gestures.NONE
+
+--SetGesturesEnabled(0b0000000000001001)   -- Enable only some gestures to be detected
+
+SetTargetFPS(60)
+-------------------------------------------------------------------------------------------
+
+-- Main game loop
+while not WindowShouldClose() do    -- Detect window close button or ESC key
+    -- Update
+    ---------------------------------------------------------------------------------------
+    lastGesture = currentGesture
+    currentGesture = GetGestureDetected()
+    touchPosition = GetTouchPosition(0)
+
+    if (CheckCollisionPointRec(touchPosition, touchArea) and (currentGesture ~= Gestures.NONE)) then
+        if (currentGesture ~= lastGesture) then
+            -- Store gesture string
+            if (currentGesture == Gestures.TAP) then gestureStrings[gesturesCount] = "GESTURE TAP"
+            elseif (currentGesture == Gestures.DOUBLETAP) then gestureStrings[gesturesCount] = "GESTURE DOUBLETAP"
+            elseif (currentGesture == Gestures.HOLD) then gestureStrings[gesturesCount] = "GESTURE HOLD"
+            elseif (currentGesture == Gestures.DRAG) then gestureStrings[gesturesCount] = "GESTURE DRAG"
+            elseif (currentGesture == Gestures.SWIPE_RIGHT) then gestureStrings[gesturesCount] = "GESTURE SWIPE RIGHT"
+            elseif (currentGesture == Gestures.SWIPE_LEFT) then gestureStrings[gesturesCount] = "GESTURE SWIPE LEFT"
+            elseif (currentGesture == Gestures.SWIPE_UP) then gestureStrings[gesturesCount] = "GESTURE SWIPE UP"
+            elseif (currentGesture == Gestures.SWIPE_DOWN) then gestureStrings[gesturesCount] = "GESTURE SWIPE DOWN"
+            elseif (currentGesture == Gestures.PINCH_IN) then gestureStrings[gesturesCount] = "GESTURE PINCH IN"
+            elseif (currentGesture == Gestures.PINCH_OUT) then gestureStrings[gesturesCount] = "GESTURE PINCH OUT"
+            end
+            
+            gesturesCount = gesturesCount + 1
+            
+            -- Reset gestures strings
+            if (gesturesCount >= MAX_GESTURE_STRINGS) then
+                for i = 1, MAX_GESTURE_STRINGS do gestureStrings[i] = "\0" end
+                gesturesCount = 0
+            end
+        end
+    end
+    ---------------------------------------------------------------------------------------
+
+    -- Draw
+    ---------------------------------------------------------------------------------------
+    BeginDrawing()
+
+        ClearBackground(RAYWHITE)
+        
+        DrawRectangleRec(touchArea, GRAY)
+        DrawRectangle(225, 15, screenWidth - 240, screenHeight - 30, RAYWHITE)
+        
+        DrawText("GESTURES TEST AREA", screenWidth - 270, screenHeight - 40, 20, Fade(GRAY, 0.5))
+        
+        for i = 1, gesturesCount do
+            if ((i - 1)%2 == 0) then DrawRectangle(10, 30 + 20*(i - 1), 200, 20, Fade(LIGHTGRAY, 0.5))
+            else DrawRectangle(10, 30 + 20*(i - 1), 200, 20, Fade(LIGHTGRAY, 0.3)) end
+            
+            if (i < gesturesCount) then DrawText(gestureStrings[i], 35, 36 + 20*(i - 1), 10, DARKGRAY)
+            else DrawText(gestureStrings[i], 35, 36 + 20*(i - 1), 10, MAROON) end
+        end
+        
+        DrawRectangleLines(10, 29, 200, screenHeight - 50, GRAY)
+        DrawText("DETECTED GESTURES", 50, 15, 10, GRAY)
+        
+        if (currentGesture ~= GESTURE_NONE) then DrawCircleV(touchPosition, 30, MAROON) end
+        
+    EndDrawing()
+    ---------------------------------------------------------------------------------------
+end
+
+-- De-Initialization
+-------------------------------------------------------------------------------------------
+CloseWindow()        -- Close window and OpenGL context
+-------------------------------------------------------------------------------------------
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