raylib-src/examples/ex06c_font_select.c

/*******************************************************************************************
*
*   raylib example 06c - Font selection...
*
*   This example has been created using raylib 1.0 (www.raylib.com)
*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
*   Copyright (c) 2013 Ramon Santamaria (Ray San - raysan@raysanweb.com)
*
********************************************************************************************/

#include "raylib.h"

int main()
{
    // Initialization
    //--------------------------------------------------------------------------------------
    int screenWidth = 800;
    int screenHeight = 150;

    InitWindow(screenWidth, screenHeight, "raylib example 06c - font selection");
    
    // NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
    SpriteFont fonts[8];        // SpriteFont array
    
    fonts[0] = LoadSpriteFont("resources/fonts/alagard.rbmf");       // SpriteFont loading
    fonts[1] = LoadSpriteFont("resources/fonts/pixelplay.rbmf");     // SpriteFont loading
    fonts[2] = LoadSpriteFont("resources/fonts/mecha.rbmf");         // SpriteFont loading
    fonts[3] = LoadSpriteFont("resources/fonts/setback.rbmf");       // SpriteFont loading
    fonts[4] = LoadSpriteFont("resources/fonts/romulus.rbmf");       // SpriteFont loading
    fonts[5] = LoadSpriteFont("resources/fonts/pixantiqua.rbmf");    // SpriteFont loading
    fonts[6] = LoadSpriteFont("resources/fonts/alpha_beta.rbmf");    // SpriteFont loading
    fonts[7] = LoadSpriteFont("resources/fonts/jupiter_crash.rbmf"); // SpriteFont loading
    
    int currentFont = 0;        // Selected font
    
    Color colors[8] = { MAROON, ORANGE, DARKGREEN, DARKBLUE, DARKPURPLE, LIME, GOLD, RED };
    
    const char fontNames[8][20] = { "[0] Alagard", "[1] PixelPlay", "[2] MECHA", "[3] Setback", 
                                    "[4] Romulus", "[5] PixAntiqua", "[6] Alpha Beta", "[7] Jupiter Crash" };
    
    const char text[50] = "THIS is THE FONT you SELECTED!";     // Main text
    
    Vector2 textSize = MeasureTextEx(fonts[currentFont], text, GetFontBaseSize(fonts[currentFont])*3, 1);
    
    Vector2 mousePoint;
    
    Rectangle btnNextRec = { 673, 18, 109, 44 };    // Button rectangle (useful for collision)
    
    Color btnNextOutColor = DARKBLUE;       // Button color (outside line)
    Color btnNextInColor = SKYBLUE;         // Button color (inside)
    
    int framesCounter = 0;      // Useful to count frames button is 'active' = clicked
    
    SetTargetFPS(60);
    //--------------------------------------------------------------------------------------
    
    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        //----------------------------------------------------------------------------------
        
        // Keyboard-based font selection (easy)
        if (IsKeyPressed(KEY_RIGHT))
        {
            if (currentFont < 7) currentFont++;
        }
        
        if (IsKeyPressed(KEY_LEFT))
        {
            if (currentFont > 0) currentFont--;
        }
        
        // Mouse-based font selection (NEXT button logic)
        mousePoint = GetMousePosition();
        
        if (CheckCollisionPointRec(mousePoint, btnNextRec))
        {
            // Mouse hover button logic
            if (framesCounter == 0)
            {
                btnNextOutColor = DARKPURPLE;
                btnNextInColor = PURPLE;
            }
            
            if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
            {
                framesCounter = 20;         // Frames button is 'active'
                btnNextOutColor = MAROON;
                btnNextInColor = RED;
            }
        }
        else
        {
            // Mouse not hover button
            btnNextOutColor = DARKBLUE;
            btnNextInColor = SKYBLUE;
        }
        
        if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON) && (framesCounter > 0)) framesCounter--;
        
        if (framesCounter == 1)     // We change font on frame 1
        {    
            currentFont++;
            if (currentFont > 7) currentFont = 0;
        }
        
        // Text measurement for better positioning on screen
        textSize = MeasureTextEx(fonts[currentFont], text, GetFontBaseSize(fonts[currentFont])*3, 1);
        //----------------------------------------------------------------------------------
        
        // Draw
        //----------------------------------------------------------------------------------
        BeginDrawing();
        
            ClearBackground(RAYWHITE);
            
            DrawRectangle(18, 18, 644, 44, DARKGRAY);
            DrawRectangle(20, 20, 640, 40, LIGHTGRAY);
            DrawText(fontNames[currentFont], 30, 31, 20, BLACK);
            DrawText("< >", 610, 26, 30, BLACK);
            
            DrawRectangleRec(btnNextRec, btnNextOutColor);
            DrawRectangle(675, 20, 105, 40, btnNextInColor);
            DrawText("NEXT", 700, 31, 20, btnNextOutColor);
            
            DrawTextEx(fonts[currentFont], text, (Vector2){ screenWidth/2 - textSize.x/2, 
                       75 + (70 - textSize.y)/2 }, GetFontBaseSize(fonts[currentFont])*3, 
                       1, colors[currentFont]);  
 
        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    for (int i = 0; i < 8; i++) UnloadSpriteFont(fonts[i]);       // SpriteFont(s) unloading
    
    CloseWindow();                // Close window and OpenGL context
    //--------------------------------------------------------------------------------------
    
    return 0;
}