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/*******************************************************************************************
*
* raylib [shapes] example - easings rectangle array
*
* NOTE: This example requires 'easings.h' library, provided on raylib/src. Just copy
* the library to same directory as example or make sure it's available on include path.
*
* This example has been created using raylib 2.0 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Copyright (c) 2014-2019 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#include "easings.h" // Required for easing functions
#if defined(PLATFORM_WEB)
#include <emscripten/emscripten.h>
#endif
#define RECS_WIDTH 50
#define RECS_HEIGHT 50
#define MAX_RECS_X 800/RECS_WIDTH
#define MAX_RECS_Y 450/RECS_HEIGHT
#define PLAY_TIME_IN_FRAMES 240 // At 60 fps = 4 seconds
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
Rectangle recs[MAX_RECS_X*MAX_RECS_Y];
float rotation = 0.0f;
int framesCounter = 0;
int state = 0; // Rectangles animation state: 0-Playing, 1-Finished
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void); // Update and Draw one frame
//----------------------------------------------------------------------------------
// Main Enry Point
//----------------------------------------------------------------------------------
int main()
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib [shapes] example - easings rectangle array");
for (int y = 0; y < MAX_RECS_Y; y++)
{
for (int x = 0; x < MAX_RECS_X; x++)
{
recs[y*MAX_RECS_X + x].x = RECS_WIDTH/2 + RECS_WIDTH*x;
recs[y*MAX_RECS_X + x].y = RECS_HEIGHT/2 + RECS_HEIGHT*y;
recs[y*MAX_RECS_X + x].width = RECS_WIDTH;
recs[y*MAX_RECS_X + x].height = RECS_HEIGHT;
}
}
#if defined(PLATFORM_WEB)
emscripten_set_main_loop(UpdateDrawFrame, 0, 1);
#else
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
UpdateDrawFrame();
}
#endif
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void)
{
// Update
//----------------------------------------------------------------------------------
if (state == 0)
{
framesCounter++;
for (int i = 0; i < MAX_RECS_X*MAX_RECS_Y; i++)
{
recs[i].height = EaseCircOut(framesCounter, RECS_HEIGHT, -RECS_HEIGHT, PLAY_TIME_IN_FRAMES);
recs[i].width = EaseCircOut(framesCounter, RECS_WIDTH, -RECS_WIDTH, PLAY_TIME_IN_FRAMES);
if (recs[i].height < 0) recs[i].height = 0;
if (recs[i].width < 0) recs[i].width = 0;
if ((recs[i].height == 0) && (recs[i].width == 0)) state = 1; // Finish playing
rotation = EaseLinearIn(framesCounter, 0.0f, 360.0f, PLAY_TIME_IN_FRAMES);
}
}
else if ((state == 1) && IsKeyPressed(KEY_SPACE))
{
// When animation has finished, press space to restart
framesCounter = 0;
for (int i = 0; i < MAX_RECS_X*MAX_RECS_Y; i++)
{
recs[i].height = RECS_HEIGHT;
recs[i].width = RECS_WIDTH;
}
state = 0;
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
if (state == 0)
{
for (int i = 0; i < MAX_RECS_X*MAX_RECS_Y; i++)
{
DrawRectanglePro(recs[i], (Vector2){ recs[i].width/2, recs[i].height/2 }, rotation, RED);
}
}
else if (state == 1) DrawText("PRESS [SPACE] TO PLAY AGAIN!", 240, 200, 20, GRAY);
EndDrawing();
//----------------------------------------------------------------------------------
}
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