87 lines
3.7 KiB
C
87 lines
3.7 KiB
C
/*******************************************************************************************
|
|
*
|
|
* raylib [textures] example - Texture source and destination rectangles
|
|
*
|
|
* 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) 2015-2024 Ramon Santamaria (@raysan5)
|
|
*
|
|
********************************************************************************************/
|
|
|
|
#include "raylib.h"
|
|
|
|
//------------------------------------------------------------------------------------
|
|
// Program main entry point
|
|
//------------------------------------------------------------------------------------
|
|
int main(void)
|
|
{
|
|
// Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
const int screenWidth = 800;
|
|
const int screenHeight = 450;
|
|
|
|
InitWindow(screenWidth, screenHeight, "raylib [textures] examples - texture source and destination rectangles");
|
|
|
|
// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
|
|
|
|
Texture2D scarfy = LoadTexture("resources/scarfy.png"); // Texture loading
|
|
|
|
int frameWidth = scarfy.width/6;
|
|
int frameHeight = scarfy.height;
|
|
|
|
// Source rectangle (part of the texture to use for drawing)
|
|
Rectangle sourceRec = { 0.0f, 0.0f, (float)frameWidth, (float)frameHeight };
|
|
|
|
// Destination rectangle (screen rectangle where drawing part of texture)
|
|
Rectangle destRec = { screenWidth/2.0f, screenHeight/2.0f, frameWidth*2.0f, frameHeight*2.0f };
|
|
|
|
// Origin of the texture (rotation/scale point), it's relative to destination rectangle size
|
|
Vector2 origin = { (float)frameWidth, (float)frameHeight };
|
|
|
|
int rotation = 0;
|
|
|
|
SetTargetFPS(60);
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
// Main game loop
|
|
while (!WindowShouldClose()) // Detect window close button or ESC key
|
|
{
|
|
// Update
|
|
//----------------------------------------------------------------------------------
|
|
rotation++;
|
|
//----------------------------------------------------------------------------------
|
|
|
|
// Draw
|
|
//----------------------------------------------------------------------------------
|
|
BeginDrawing();
|
|
|
|
ClearBackground(RAYWHITE);
|
|
|
|
// NOTE: Using DrawTexturePro() we can easily rotate and scale the part of the texture we draw
|
|
// sourceRec defines the part of the texture we use for drawing
|
|
// destRec defines the rectangle where our texture part will fit (scaling it to fit)
|
|
// origin defines the point of the texture used as reference for rotation and scaling
|
|
// rotation defines the texture rotation (using origin as rotation point)
|
|
DrawTexturePro(scarfy, sourceRec, destRec, origin, (float)rotation, WHITE);
|
|
|
|
DrawLine((int)destRec.x, 0, (int)destRec.x, screenHeight, GRAY);
|
|
DrawLine(0, (int)destRec.y, screenWidth, (int)destRec.y, GRAY);
|
|
|
|
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;
|
|
} |