Add raylib lua examples

1 files changed, 143 insertions, 0 deletions

diff --git a/examples/text_font_select.lua b/examples/text_font_select.lua
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+++ b/examples/text_font_select.lua
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+-------------------------------------------------------------------------------------------
+--
+--  raylib [text] example - Font selector
+--
+--  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 [text] example - font selector")
+
+-- NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
+local fonts = {}        -- SpriteFont array
+
+fonts[1] = LoadSpriteFont("resources/fonts/alagard.rbmf")       -- SpriteFont loading
+fonts[2] = LoadSpriteFont("resources/fonts/pixelplay.rbmf")     -- SpriteFont loading
+fonts[3] = LoadSpriteFont("resources/fonts/mecha.rbmf")         -- SpriteFont loading
+fonts[4] = LoadSpriteFont("resources/fonts/setback.rbmf")       -- SpriteFont loading
+fonts[5] = LoadSpriteFont("resources/fonts/romulus.rbmf")       -- SpriteFont loading
+fonts[6] = LoadSpriteFont("resources/fonts/pixantiqua.rbmf")    -- SpriteFont loading
+fonts[7] = LoadSpriteFont("resources/fonts/alpha_beta.rbmf")    -- SpriteFont loading
+fonts[8] = LoadSpriteFont("resources/fonts/jupiter_crash.rbmf") -- SpriteFont loading
+
+local currentFont = 1        -- Selected font
+
+local colors = { MAROON, ORANGE, DARKGREEN, DARKBLUE, DARKPURPLE, LIME, GOLD, RED }
+
+local fontNames = { "[1] Alagard", "[2] PixelPlay", "[3] MECHA", "[4] Setback",
+                    "[5] Romulus", "[6] PixAntiqua", "[7] Alpha Beta", "[8] Jupiter Crash" }
+
+local text = "THIS is THE FONT you SELECTED!"     -- Main text
+
+local textSize = MeasureTextEx(fonts[currentFont], text, fonts[currentFont].size*3, 1)
+
+local mousePoint
+
+local btnNextOutColor = DARKBLUE       -- Button color (outside line)
+local btnNextInColor = SKYBLUE         -- Button color (inside)
+
+local framesCounter = 0      -- Useful to count frames button is 'active' = clicked
+
+local positionY = 180        -- Text selector and button Y position
+
+local btnNextRec = Rectangle(673, positionY, 109, 44)    -- Button rectangle (useful for collision)
+
+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
+    ---------------------------------------------------------------------------------------
+
+    -- Keyboard-based font selection (easy)
+    if (IsKeyPressed(KEY.RIGHT)) then
+        if (currentFont < 8) then currentFont = currentFont + 1 end
+    end
+
+    if (IsKeyPressed(KEY.LEFT)) then
+        if (currentFont > 1) then currentFont = currentFont - 1 end
+    end
+    
+    if (IsKeyPressed(KEY.ZERO)) then currentFont = 0
+    elseif (IsKeyPressed(KEY.ONE)) then currentFont = 1
+    elseif (IsKeyPressed(KEY.TWO)) then currentFont = 2
+    elseif (IsKeyPressed(KEY.THREE)) then currentFont = 3
+    elseif (IsKeyPressed(KEY.FOUR)) then currentFont = 4
+    elseif (IsKeyPressed(KEY.FIVE)) then currentFont = 5
+    elseif (IsKeyPressed(KEY.SIX)) then currentFont = 6
+    elseif (IsKeyPressed(KEY.SEVEN)) then currentFont = 7
+    end
+
+    -- Mouse-based font selection (NEXT button logic)
+    mousePoint = GetMousePosition()
+
+    if (CheckCollisionPointRec(mousePoint, btnNextRec)) then
+        -- Mouse hover button logic
+        if (framesCounter == 0) then
+            btnNextOutColor = DARKPURPLE
+            btnNextInColor = PURPLE
+        end
+
+        if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) then
+            framesCounter = 20         -- Frames button is 'active'
+            btnNextOutColor = MAROON
+            btnNextInColor = RED
+        end
+    else
+        -- Mouse not hover button
+        btnNextOutColor = DARKBLUE
+        btnNextInColor = SKYBLUE
+    end
+    
+    if (framesCounter > 0) then framesCounter = framesCounter - 1 end
+
+    if (framesCounter == 1) then     -- We change font on frame 1
+        currentFont = currentFont + 1
+        if (currentFont > 7) then currentFont = 0 end
+    end
+
+    -- Text measurement for better positioning on screen
+    textSize = MeasureTextEx(fonts[currentFont], text, fonts[currentFont].size*3, 1)
+    ---------------------------------------------------------------------------------------
+
+    -- Draw
+    ---------------------------------------------------------------------------------------
+    BeginDrawing()
+
+        ClearBackground(RAYWHITE)
+        
+        DrawText("font selector - use arroys, button or numbers", 160, 80, 20, DARKGRAY)
+        DrawLine(120, 120, 680, 120, DARKGRAY)
+
+        DrawRectangle(18, positionY, 644, 44, DARKGRAY)
+        DrawRectangle(20, positionY + 2, 640, 40, LIGHTGRAY)
+        DrawText(fontNames[currentFont], 30, positionY + 13, 20, BLACK)
+        DrawText("< >", 610, positionY + 8, 30, BLACK)
+
+        DrawRectangleRec(btnNextRec, btnNextOutColor)
+        DrawRectangle(675, positionY + 2, 105, 40, btnNextInColor)
+        DrawText("NEXT", 700, positionY + 13, 20, btnNextOutColor)
+
+        DrawTextEx(fonts[currentFont], text, Vector2(screenWidth/2 - textSize.x/2,
+                   260 + (70 - textSize.y)/2), fonts[currentFont].size*3,
+                   1, colors[currentFont])
+
+    EndDrawing()
+    ---------------------------------------------------------------------------------------
+end
+
+-- De-Initialization
+-------------------------------------------------------------------------------------------
+for i = 1, 8 do UnloadSpriteFont(fonts[i]) end       -- SpriteFont(s) unloading
+
+CloseWindow()                -- Close window and OpenGL context
+-------------------------------------------------------------------------------------------
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