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/*******************************************************************************************
*
* raylib [physac] example - Basic rigidbody
*
* 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)
*
* NOTE:
* Physac requires multi-threading, when InitPhysics() a second thread is created to manage
* physics calculations. To accomplish that, physac uses pthread Win32 library that can be
* found inside raylib/src/external/pthread directory.
*
* Add pthread library when compiling physac example:
* gcc -o $(NAME_PART).exe $(FILE_NAME) $(RAYLIB_DIR)\raylib_icon -L../src/external/pthread/lib \
* -I../src -I../src/external/pthread/include -lraylib -lglfw3 -lopengl32 -lgdi32 -lpthreadGC2 -std=c99 -Wall
*
* Note that pthreadGC2.dll must be also copied to project directory!
*
* Copyright (c) 2016 Victor Fisac and Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#define PHYSAC_IMPLEMENTATION
#include "physac.h"
#define MOVE_VELOCITY 5
#define JUMP_VELOCITY 30
int main()
{
// Initialization
//--------------------------------------------------------------------------------------
int screenWidth = 800;
int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [physac] example - basic rigidbody");
InitPhysics((Vector2){ 0.0f, -9.81f/2 }); // Initialize physics module
// Debug variables
bool isDebug = false;
// Create rectangle physic object
PhysicBody rectangle = CreatePhysicBody((Vector2){ screenWidth*0.25f, screenHeight/2 }, 0.0f, (Vector2){ 75, 50 });
rectangle->rigidbody.enabled = true; // Enable physic object rigidbody behaviour
rectangle->rigidbody.applyGravity = true;
rectangle->rigidbody.friction = 0.1f;
rectangle->rigidbody.bounciness = 6.0f;
// Create square physic object
PhysicBody square = CreatePhysicBody((Vector2){ screenWidth*0.75f, screenHeight/2 }, 0.0f, (Vector2){ 50, 50 });
square->rigidbody.enabled = true; // Enable physic object rigidbody behaviour
square->rigidbody.applyGravity = true;
square->rigidbody.friction = 0.1f;
// Create walls physic objects
PhysicBody floor = CreatePhysicBody((Vector2){ screenWidth/2, screenHeight*0.95f }, 0.0f, (Vector2){ screenWidth*0.9f, 100 });
PhysicBody leftWall = CreatePhysicBody((Vector2){ 0.0f, screenHeight/2 }, 0.0f, (Vector2){ screenWidth*0.1f, screenHeight });
PhysicBody rightWall = CreatePhysicBody((Vector2){ screenWidth, screenHeight/2 }, 0.0f, (Vector2){ screenWidth*0.1f, screenHeight });
PhysicBody roof = CreatePhysicBody((Vector2){ screenWidth/2, screenHeight*0.05f }, 0.0f, (Vector2){ screenWidth*0.9f, 100 });
// Create pplatform physic object
PhysicBody platform = CreatePhysicBody((Vector2){ screenWidth/2, screenHeight*0.7f }, 0.0f, (Vector2){ screenWidth*0.25f, 20 });
SetTargetFPS(60);
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
// Check rectangle movement inputs
if (IsKeyPressed('W')) rectangle->rigidbody.velocity.y = JUMP_VELOCITY;
if (IsKeyDown('A')) rectangle->rigidbody.velocity.x = -MOVE_VELOCITY;
else if (IsKeyDown('D')) rectangle->rigidbody.velocity.x = MOVE_VELOCITY;
// Check square movement inputs
if (IsKeyDown(KEY_UP) && square->rigidbody.isGrounded) square->rigidbody.velocity.y = JUMP_VELOCITY;
if (IsKeyDown(KEY_LEFT)) square->rigidbody.velocity.x = -MOVE_VELOCITY;
else if (IsKeyDown(KEY_RIGHT)) square->rigidbody.velocity.x = MOVE_VELOCITY;
// Check debug switch input
if (IsKeyPressed('P')) isDebug = !isDebug;
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
// Draw floor, roof and walls rectangles
DrawRectangleRec(TransformToRectangle(floor->transform), DARKGRAY); // Convert transform values to rectangle data type variable
DrawRectangleRec(TransformToRectangle(leftWall->transform), DARKGRAY);
DrawRectangleRec(TransformToRectangle(rightWall->transform), DARKGRAY);
DrawRectangleRec(TransformToRectangle(roof->transform), DARKGRAY);
// Draw middle platform rectangle
DrawRectangleRec(TransformToRectangle(platform->transform), DARKGRAY);
// Draw physic objects
DrawRectangleRec(TransformToRectangle(rectangle->transform), RED);
DrawRectangleRec(TransformToRectangle(square->transform), BLUE);
// Draw collider lines if debug is enabled
if (isDebug)
{
DrawRectangleLines(floor->collider.bounds.x, floor->collider.bounds.y, floor->collider.bounds.width, floor->collider.bounds.height, GREEN);
DrawRectangleLines(leftWall->collider.bounds.x, leftWall->collider.bounds.y, leftWall->collider.bounds.width, leftWall->collider.bounds.height, GREEN);
DrawRectangleLines(rightWall->collider.bounds.x, rightWall->collider.bounds.y, rightWall->collider.bounds.width, rightWall->collider.bounds.height, GREEN);
DrawRectangleLines(roof->collider.bounds.x, roof->collider.bounds.y, roof->collider.bounds.width, roof->collider.bounds.height, GREEN);
DrawRectangleLines(platform->collider.bounds.x, platform->collider.bounds.y, platform->collider.bounds.width, platform->collider.bounds.height, GREEN);
DrawRectangleLines(rectangle->collider.bounds.x, rectangle->collider.bounds.y, rectangle->collider.bounds.width, rectangle->collider.bounds.height, GREEN);
DrawRectangleLines(square->collider.bounds.x, square->collider.bounds.y, square->collider.bounds.width, square->collider.bounds.height, GREEN);
}
// Draw help message
DrawText("Use WASD to move rectangle and ARROWS to move square", screenWidth/2 - MeasureText("Use WASD to move rectangle and ARROWS to move square", 20)/2, screenHeight*0.075f, 20, LIGHTGRAY);
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
ClosePhysics(); // Unitialize physics (including all loaded objects)
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
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