Вы не можете выбрать более 25 тем
Темы должны начинаться с буквы или цифры, могут содержать дефисы(-) и должны содержать не более 35 символов.
136 строки
4.6 KiB
136 строки
4.6 KiB
/*******************************************************************************************
|
|
*
|
|
* raylib [shapes] example - easings box anim
|
|
*
|
|
* This example has been created using raylib 2.5 (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
|
|
|
|
int main(void)
|
|
{
|
|
// Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
const int screenWidth = 800;
|
|
const int screenHeight = 450;
|
|
|
|
InitWindow(screenWidth, screenHeight, "raylib [shapes] example - easings box anim");
|
|
|
|
// Box variables to be animated with easings
|
|
Rectangle rec = { GetScreenWidth()/2, -100, 100, 100 };
|
|
float rotation = 0.0f;
|
|
float alpha = 1.0f;
|
|
|
|
int state = 0;
|
|
int framesCounter = 0;
|
|
|
|
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
|
|
//----------------------------------------------------------------------------------
|
|
switch (state)
|
|
{
|
|
case 0: // Move box down to center of screen
|
|
{
|
|
framesCounter++;
|
|
|
|
// NOTE: Remember that 3rd parameter of easing function refers to
|
|
// desired value variation, do not confuse it with expected final value!
|
|
rec.y = EaseElasticOut(framesCounter, -100, GetScreenHeight()/2 + 100, 120);
|
|
|
|
if (framesCounter >= 120)
|
|
{
|
|
framesCounter = 0;
|
|
state = 1;
|
|
}
|
|
} break;
|
|
case 1: // Scale box to an horizontal bar
|
|
{
|
|
framesCounter++;
|
|
rec.height = EaseBounceOut(framesCounter, 100, -90, 120);
|
|
rec.width = EaseBounceOut(framesCounter, 100, GetScreenWidth(), 120);
|
|
|
|
if (framesCounter >= 120)
|
|
{
|
|
framesCounter = 0;
|
|
state = 2;
|
|
}
|
|
} break;
|
|
case 2: // Rotate horizontal bar rectangle
|
|
{
|
|
framesCounter++;
|
|
rotation = EaseQuadOut(framesCounter, 0.0f, 270.0f, 240);
|
|
|
|
if (framesCounter >= 240)
|
|
{
|
|
framesCounter = 0;
|
|
state = 3;
|
|
}
|
|
} break;
|
|
case 3: // Increase bar size to fill all screen
|
|
{
|
|
framesCounter++;
|
|
rec.height = EaseCircOut(framesCounter, 10, GetScreenWidth(), 120);
|
|
|
|
if (framesCounter >= 120)
|
|
{
|
|
framesCounter = 0;
|
|
state = 4;
|
|
}
|
|
} break;
|
|
case 4: // Fade out animation
|
|
{
|
|
framesCounter++;
|
|
alpha = EaseSineOut(framesCounter, 1.0f, -1.0f, 160);
|
|
|
|
if (framesCounter >= 160)
|
|
{
|
|
framesCounter = 0;
|
|
state = 5;
|
|
}
|
|
} break;
|
|
default: break;
|
|
}
|
|
|
|
// Reset animation at any moment
|
|
if (IsKeyPressed(KEY_SPACE))
|
|
{
|
|
rec = (Rectangle){ GetScreenWidth()/2, -100, 100, 100 };
|
|
rotation = 0.0f;
|
|
alpha = 1.0f;
|
|
state = 0;
|
|
framesCounter = 0;
|
|
}
|
|
//----------------------------------------------------------------------------------
|
|
|
|
// Draw
|
|
//----------------------------------------------------------------------------------
|
|
BeginDrawing();
|
|
|
|
ClearBackground(RAYWHITE);
|
|
|
|
DrawRectanglePro(rec, (Vector2){ rec.width/2, rec.height/2 }, rotation, Fade(BLACK, alpha));
|
|
|
|
DrawText("PRESS [SPACE] TO RESET BOX ANIMATION!", 10, GetScreenHeight() - 25, 20, LIGHTGRAY);
|
|
|
|
EndDrawing();
|
|
//----------------------------------------------------------------------------------
|
|
}
|
|
|
|
// De-Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
CloseWindow(); // Close window and OpenGL context
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
return 0;
|
|
}
|