rayjs/examples/textures/textures_sprite_anim.c

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2023-05-25 21:12:11 +00:00
/*******************************************************************************************
*
* raylib [textures] example - Sprite animation
*
* Example originally created with raylib 1.3, last time updated with raylib 1.3
*
* 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"
#define MAX_FRAME_SPEED 15
#define MIN_FRAME_SPEED 1
//------------------------------------------------------------------------------------
// Program main entry point
//------------------------------------------------------------------------------------
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [texture] example - sprite anim");
// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
Texture2D scarfy = LoadTexture("resources/scarfy.png"); // Texture loading
Vector2 position = { 350.0f, 280.0f };
Rectangle frameRec = { 0.0f, 0.0f, (float)scarfy.width/6, (float)scarfy.height };
int currentFrame = 0;
int framesCounter = 0;
int framesSpeed = 8; // Number of spritesheet frames shown by second
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
//----------------------------------------------------------------------------------
framesCounter++;
if (framesCounter >= (60/framesSpeed))
{
framesCounter = 0;
currentFrame++;
if (currentFrame > 5) currentFrame = 0;
frameRec.x = (float)currentFrame*(float)scarfy.width/6;
}
// Control frames speed
if (IsKeyPressed(KEY_RIGHT)) framesSpeed++;
else if (IsKeyPressed(KEY_LEFT)) framesSpeed--;
if (framesSpeed > MAX_FRAME_SPEED) framesSpeed = MAX_FRAME_SPEED;
else if (framesSpeed < MIN_FRAME_SPEED) framesSpeed = MIN_FRAME_SPEED;
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
DrawTexture(scarfy, 15, 40, WHITE);
DrawRectangleLines(15, 40, scarfy.width, scarfy.height, LIME);
DrawRectangleLines(15 + (int)frameRec.x, 40 + (int)frameRec.y, (int)frameRec.width, (int)frameRec.height, RED);
DrawText("FRAME SPEED: ", 165, 210, 10, DARKGRAY);
DrawText(TextFormat("%02i FPS", framesSpeed), 575, 210, 10, DARKGRAY);
DrawText("PRESS RIGHT/LEFT KEYS to CHANGE SPEED!", 290, 240, 10, DARKGRAY);
for (int i = 0; i < MAX_FRAME_SPEED; i++)
{
if (i < framesSpeed) DrawRectangle(250 + 21*i, 205, 20, 20, RED);
DrawRectangleLines(250 + 21*i, 205, 20, 20, MAROON);
}
DrawTextureRec(scarfy, frameRec, position, WHITE); // Draw part of the texture
DrawText("(c) Scarfy sprite by Eiden Marsal", screenWidth - 200, screenHeight - 20, 10, GRAY);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadTexture(scarfy); // Texture unloading
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}