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Diffstat (limited to 'src/physac.h')
| -rw-r--r-- | src/physac.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/physac.h b/src/physac.h new file mode 100644 index 00000000..9e1b0b88 --- /dev/null +++ b/src/physac.h @@ -0,0 +1,95 @@ +/********************************************************************************************** +* +* [physac] raylib physics engine module - Basic functions to apply physics to 2D objects +* +* Copyright (c) 2015 Victor Fisac and Ramon Santamaria +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef PHYSAC_H +#define PHYSAC_H + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +// ... + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +// Collider types +typedef enum { COLLIDER_CIRCLE, COLLIDER_RECTANGLE, COLLIDER_CAPSULE } ColliderType; + +// Transform struct +typedef struct Transform { + Vector2 position; + float rotation; + Vector2 scale; +} Transform; + +// Rigidbody struct +typedef struct Rigidbody { + bool enabled; + float mass; + Vector2 acceleration; + Vector2 velocity; + bool isGrounded; + bool isContact; // Avoid freeze player when touching floor + bool applyGravity; + float friction; // 0.0f to 1.0f + float bounciness; // 0.0f to 1.0f +} Rigidbody; + +// Collider struct +typedef struct Collider { + bool enabled; + ColliderType type; + Rectangle bounds; // Used for COLLIDER_RECTANGLE and COLLIDER_CAPSULE + int radius; // Used for COLLIDER_CIRCLE and COLLIDER_CAPSULE +} Collider; + +#ifdef __cplusplus +extern "C" { // Prevents name mangling of functions +#endif + +//---------------------------------------------------------------------------------- +// Module Functions Declarations +//---------------------------------------------------------------------------------- +void InitPhysics(int maxPhysicElements); // Initialize all internal physics values +void UnloadPhysics(); // Unload physic elements arrays + +void AddRigidbody(int index, Rigidbody rigidbody); // Initialize a new rigidbody with parameters to internal index slot +void AddCollider(int index, Collider collider); // Initialize a new Collider with parameters to internal index slot + +void ApplyPhysics(int index, Vector2 *position); // Apply physics to internal rigidbody, physics calculations are applied to position pointer parameter +void SetRigidbodyEnabled(int index, bool state); // Set enabled state to a defined rigidbody +void SetRigidbodyVelocity(int index, Vector2 velocity); // Set velocity of rigidbody (without considering of mass value) +void SetRigidbodyAcceleration(int index, Vector2 acceleration); // Set acceleration of rigidbody (without considering of mass value) +void AddRigidbodyForce(int index, Vector2 force); // Set rigidbody force (considering mass value) +void AddForceAtPosition(Vector2 position, float intensity, float radius); // Add a force to all enabled rigidbodies at a position + +void SetColliderEnabled(int index, bool state); // Set enabled state to a defined collider + +Rigidbody GetRigidbody(int index); // Returns the internal rigidbody data defined by index parameter +Collider GetCollider(int index); // Returns the internal collider data defined by index parameter + +#ifdef __cplusplus +} +#endif + +#endif // PHYSAC_H |