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180 lines
6.1 KiB
180 lines
6.1 KiB
/*******************************************************************************************
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*
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* raylib [shapes] example - raylib logo animation
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*
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* This example has been created using raylib 1.1 (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 Ramon Santamaria (Ray San - raysan@raysanweb.com)
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*
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********************************************************************************************/
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#include "raylib.h"
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int main()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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int screenWidth = 800;
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int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [shapes] example - raylib logo animation");
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int logoPositionX = screenWidth/2 - 128;
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int logoPositionY = screenHeight/2 - 128;
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int framesCounter = 0;
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int lettersCount = 0;
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int topSideRecWidth = 16;
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int leftSideRecHeight = 16;
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int bottomSideRecWidth = 16;
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int rightSideRecHeight = 16;
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char raylib[8] = " \0"; // raylib text array, max 8 letters
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int state = 0; // Tracking animation states (State Machine)
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float alpha = 1.0; // Useful for fading
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SetTargetFPS(60);
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//--------------------------------------------------------------------------------------
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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// Update
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//----------------------------------------------------------------------------------
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if (state == 0) // State 0: Small box blinking
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{
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framesCounter++;
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if (framesCounter == 120)
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{
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state = 1;
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framesCounter = 0; // Reset counter... will be used later...
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}
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}
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else if (state == 1) // State 1: Top and left bars growing
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{
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topSideRecWidth += 4;
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leftSideRecHeight += 4;
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if (topSideRecWidth == 256) state = 2;
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}
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else if (state == 2) // State 2: Bottom and right bars growing
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{
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bottomSideRecWidth += 4;
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rightSideRecHeight += 4;
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if (bottomSideRecWidth == 256) state = 3;
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}
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else if (state == 3) // State 3: Letters appearing (one by one)
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{
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framesCounter++;
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if (framesCounter/12) // Every 12 frames, one more letter!
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{
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lettersCount++;
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framesCounter = 0;
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}
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switch (lettersCount)
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{
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case 1: raylib[0] = 'r'; break;
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case 2: raylib[1] = 'a'; break;
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case 3: raylib[2] = 'y'; break;
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case 4: raylib[3] = 'l'; break;
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case 5: raylib[4] = 'i'; break;
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case 6: raylib[5] = 'b'; break;
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default: break;
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}
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if (lettersCount >= 10) // When all letters have appeared, just fade out everything
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{
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alpha -= 0.02;
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if (alpha <= 0)
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{
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alpha = 0;
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state = 4;
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}
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}
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}
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else if (state == 4) // State 4: Reset and Replay
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{
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if (IsKeyPressed('R'))
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{
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framesCounter = 0;
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lettersCount = 0;
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topSideRecWidth = 16;
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leftSideRecHeight = 16;
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bottomSideRecWidth = 16;
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rightSideRecHeight = 16;
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for (int i = 0; i < 7; i++) raylib[i] = ' ';
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raylib[7] = '\0'; // Last character is end-of-line
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alpha = 1.0;
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state = 0; // Return to State 0
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}
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}
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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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if (state == 0)
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{
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if ((framesCounter/15)%2) DrawRectangle(logoPositionX, logoPositionY, 16, 16, BLACK);
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}
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else if (state == 1)
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{
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DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK);
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DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK);
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}
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else if (state == 2)
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{
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DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK);
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DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK);
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DrawRectangle(logoPositionX + 240, logoPositionY, 16, rightSideRecHeight, BLACK);
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DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, BLACK);
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}
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else if (state == 3)
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{
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DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, Fade(BLACK, alpha));
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DrawRectangle(logoPositionX, logoPositionY + 16, 16, leftSideRecHeight - 32, Fade(BLACK, alpha));
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DrawRectangle(logoPositionX + 240, logoPositionY + 16, 16, rightSideRecHeight - 32, Fade(BLACK, alpha));
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DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, Fade(BLACK, alpha));
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DrawRectangle(screenWidth/2 - 112, screenHeight/2 - 112, 224, 224, Fade(RAYWHITE, alpha));
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DrawText(raylib, screenWidth/2 - 44, screenHeight/2 + 48, 50, Fade(BLACK, alpha));
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}
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else if (state == 4)
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{
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DrawText("[R] REPLAY", 340, 200, 20, GRAY);
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}
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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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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return 0;
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}
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