browser/external/raylib-4.5.0/examples/shapes/shapes_easings_rectangle_array.c
2023-09-27 15:02:24 -04:00

123 lines
4.5 KiB
C

/*******************************************************************************************
*
* 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.
*
* Example originally created with raylib 2.0, last time updated with raylib 2.5
*
* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
* BSD-like license that allows static linking with closed source software
*
* Copyright (c) 2014-2023 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#include "reasings.h" // Required for easing functions
#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
//------------------------------------------------------------------------------------
// Program main entry point
//------------------------------------------------------------------------------------
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [shapes] example - easings rectangle array");
Rectangle recs[MAX_RECS_X*MAX_RECS_Y] = { 0 };
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/2.0f + RECS_WIDTH*x;
recs[y*MAX_RECS_X + x].y = RECS_HEIGHT/2.0f + RECS_HEIGHT*y;
recs[y*MAX_RECS_X + x].width = RECS_WIDTH;
recs[y*MAX_RECS_X + x].height = RECS_HEIGHT;
}
}
float rotation = 0.0f;
int framesCounter = 0;
int state = 0; // Rectangles animation state: 0-Playing, 1-Finished
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
if (state == 0)
{
framesCounter++;
for (int i = 0; i < MAX_RECS_X*MAX_RECS_Y; i++)
{
recs[i].height = EaseCircOut((float)framesCounter, RECS_HEIGHT, -RECS_HEIGHT, PLAY_TIME_IN_FRAMES);
recs[i].width = EaseCircOut((float)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((float)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();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}