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/*******************************************************************************************
*
* raylib [core] example - 2d camera
*
* This example has been created using raylib 1.5 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Copyright (c) 2016 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
int main()
{
// Initialization
//--------------------------------------------------------------------------------------
int screenWidth = 800;
int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [core] example - 2d camera");
Camera2D camera;
camera.offset = (Vector2){ 0, 0 };
camera.target = (Vector2){ 400, 200 };
camera.rotation = 0.0f;
camera.zoom = 1.0f;
Rectangle player = { 400, 200, 40, 40 };
camera.target = (Vector2){ player.x + 20, player.y + 20 };
SetTargetFPS(60);
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
if (IsKeyDown(KEY_RIGHT)) player.x -= 2;
else if (IsKeyDown(KEY_LEFT)) player.x += 2;
else if (IsKeyDown(KEY_UP)) player.y -= 2;
else if (IsKeyDown(KEY_DOWN)) player.y += 2;
// Camera target follows player
camera.target = (Vector2){ player.x + 20, player.y + 20 };
if (IsKeyDown(KEY_R)) camera.rotation--;
else if (IsKeyDown(KEY_F)) camera.rotation++;
// Camera controls
if (IsKeyDown(KEY_R)) camera.rotation--;
else if (IsKeyDown(KEY_F)) camera.rotation++;
camera.zoom += ((float)GetMouseWheelMove()*0.05f);
if (IsKeyPressed(KEY_Z))
{
camera.zoom = 1.0f;
camera.rotation = 0.0f;
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawingEx(camera);
ClearBackground(RAYWHITE);
DrawText("2D CAMERA TEST", 20, 20, 20, GRAY);
DrawRectangle(0, 300, screenWidth, 50, GRAY);
DrawRectangleRec(player, RED);
DrawRectangle(camera.origin.x, 0, 1, screenHeight, GREEN);
DrawRectangle(0, camera.origin.y, screenWidth, 1, GREEN);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
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