您最多选择25个主题
主题必须以字母或数字开头，可以包含连字符 (-)，并且长度不得超过35个字符
101 行
3.8 KiB
101 行
3.8 KiB
/*******************************************************************************************
|
|
*
|
|
* raylib [core] example - render texture
|
|
*
|
|
* Example complexity rating: [★☆☆☆] 1/4
|
|
*
|
|
* Example originally created with raylib 5.6-dev, last time updated with raylib 5.6-dev
|
|
*
|
|
* 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) 2025 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 [core] example - render texture");
|
|
|
|
// Define a render texture to render
|
|
int renderTextureWidth = 300;
|
|
int renderTextureHeight = 300;
|
|
RenderTexture2D target = LoadRenderTexture(renderTextureWidth, renderTextureHeight);
|
|
|
|
Vector2 ballPosition = { renderTextureWidth/2.0f, renderTextureHeight/2.0f };
|
|
Vector2 ballSpeed = { 5.0f, 4.0f };
|
|
int ballRadius = 20;
|
|
|
|
float rotation = 0.0f;
|
|
|
|
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
|
|
//-----------------------------------------------------
|
|
// Ball movement logic
|
|
ballPosition.x += ballSpeed.x;
|
|
ballPosition.y += ballSpeed.y;
|
|
|
|
// Check walls collision for bouncing
|
|
if ((ballPosition.x >= (renderTextureWidth - ballRadius)) || (ballPosition.x <= ballRadius)) ballSpeed.x *= -1.0f;
|
|
if ((ballPosition.y >= (renderTextureHeight - ballRadius)) || (ballPosition.y <= ballRadius)) ballSpeed.y *= -1.0f;
|
|
|
|
// Render texture rotation
|
|
rotation += 0.5f;
|
|
//-----------------------------------------------------
|
|
|
|
// Draw
|
|
//-----------------------------------------------------
|
|
// Draw our scene to the render texture
|
|
BeginTextureMode(target);
|
|
|
|
ClearBackground(SKYBLUE);
|
|
|
|
DrawRectangle(0, 0, 20, 20, RED);
|
|
DrawCircleV(ballPosition, (float)ballRadius, MAROON);
|
|
|
|
EndTextureMode();
|
|
|
|
// Draw render texture to main framebuffer
|
|
BeginDrawing();
|
|
|
|
ClearBackground(RAYWHITE);
|
|
|
|
// Draw our render texture with rotation applied
|
|
// NOTE 1: We set the origin of the texture to the center of the render texture
|
|
// NOTE 2: We flip vertically the texture setting negative source rectangle height
|
|
DrawTexturePro(target.texture,
|
|
(Rectangle){ 0, 0, target.texture.width, -target.texture.height },
|
|
(Vector2){ target.texture.width/2, target.texture.height/2 }, rotation, WHITE);
|
|
(Rectangle){ screenWidth/2, screenHeight/2, target.texture.width, target.texture.height },
|
|
|
|
DrawText("DRAWING BOUNCING BALL INSIDE RENDER TEXTURE!", 10, screenHeight - 40, 20, BLACK);
|
|
|
|
|
|
DrawFPS(10, 10);
|
|
|
|
EndDrawing();
|
|
//-----------------------------------------------------
|
|
}
|
|
|
|
// De-Initialization
|
|
//---------------------------------------------------------
|
|
CloseWindow(); // Close window and OpenGL context
|
|
//----------------------------------------------------------
|
|
|
|
return 0;
|
|
}
|