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Decoupling camera system module 

Camera system can be used as standalone module
pull/25/head
raysan5 9 lat temu
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f7acee9221
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2 zmienionych plików z 207 dodań i 157 usunięć
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  1. +168
    -145
      src/camera.c
  2. +39
    -12
      src/camera.h

+ 168
- 145
src/camera.c Wyświetl plik

@ -1,8 +1,6 @@
/**********************************************************************************************
*
* raylib.camera
*
* Camera Modes Setup and Control Functions
* raylib Camera System - Camera Modes Setup and Control Functions
*
* Copyright (c) 2015 Marc Palau and Ramon Santamaria
*
@ -23,7 +21,14 @@
*
**********************************************************************************************/
#include "camera.h"
//#define CAMERA_STANDALONE // NOTE: To use the camera module as standalone lib, just uncomment this line
// NOTE: ProcessCamera() should be reviewed to adapt inputs to other systems
#if defined(CAMERA_STANDALONE)
#include "camera.h"
#else
#include "raylib.h"
#endif
#include <math.h>
@ -49,7 +54,7 @@
//#define FIRST_PERSON_MOUSE_SENSITIVITY 0.003
#define FIRST_PERSON_FOCUS_DISTANCE 25
#define FIRST_PERSON_MIN_CLAMP 85
#define FIRST_PERSON_MAX_CLAMP -85
#define FIRST_PERSON_MAX_CLAMP -85
#define FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER 5.0
#define FIRST_PERSON_STEP_DIVIDER 30.0
@ -61,7 +66,7 @@
//#define THIRD_PERSON_MOUSE_SENSITIVITY 0.003
#define THIRD_PERSON_DISTANCE_CLAMP 1.2
#define THIRD_PERSON_MIN_CLAMP 5
#define THIRD_PERSON_MAX_CLAMP -85
#define THIRD_PERSON_MAX_CLAMP -85
#define THIRD_PERSON_OFFSET (Vector3){ 0.4, 0, 0 }
// PLAYER (used by camera)
@ -70,23 +75,27 @@
#define PLAYER_DEPTH 0.4
#define PLAYER_MOVEMENT_DIVIDER 20.0
//----------------------------------------------------------------------------------
// Types and Structures Definition
//----------------------------------------------------------------------------------
// Camera move modes (first person and third person cameras)
typedef enum { MOVE_FRONT = 0, MOVE_LEFT, MOVE_BACK, MOVE_RIGHT, MOVE_UP, MOVE_DOWN } CameraMove;
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
static Camera internalCamera = {{2,0,2},{0,0,0},{0,1,0}};
static Vector2 cameraAngle = { 0, 0 };
static float cameraTargetDistance = 5;
static Vector3 resetingPosition = { 0, 0, 0 };
static int resetingKey = 'Z';
static Vector2 cameraMousePosition = { 0, 0 };
static Vector2 cameraMouseVariation = { 0, 0 };
static float mouseSensitivity = 0.003;
static int cameraMovementController[6] = { 'W', 'A', 'S', 'D', 'E', 'Q' };
static int cameraMovementCounter = 0;
static bool cameraUseGravity = true;
static int pawnControllingKey = MOUSE_MIDDLE_BUTTON;
static int fnControllingKey = KEY_LEFT_ALT;
static int smoothZoomControllingKey = KEY_LEFT_CONTROL;
static int cameraMoveControl[6] = { 'W', 'A', 'S', 'D', 'E', 'Q' };
static int cameraMoveCounter = 0;
static int cameraUseGravity = 1;
static int panControlKey = 2; // raylib: MOUSE_MIDDLE_BUTTON
static int altControlKey = 342; // raylib: KEY_LEFT_ALT
static int smoothZoomControlKey = 341; // raylib: KEY_LEFT_CONTROL
static int cameraMode = CAMERA_CUSTOM;
@ -95,6 +104,20 @@ static int cameraMode = CAMERA_CUSTOM;
//----------------------------------------------------------------------------------
static void ProcessCamera(Camera *camera, Vector3 *playerPosition);
#if defined(CAMERA_STANDALONE)
// NOTE: Camera controls depend on some raylib input functions
// TODO: Set your own input functions (used in ProcessCamera())
static Vector2 GetMousePosition() { return (Vector2){ 0, 0}; }
static void SetMousePosition(Vector2 pos) {}
static int IsMouseButtonDown(int button) { return 0;}
static int GetMouseWheelMove() { return 0; }
static int GetScreenWidth() { return 1280; }
static int GetScreenHeight() { return 720; }
static void ShowCursor() {}
static void HideCursor() {}
static int IsKeyDown(int key) { return 0; }
#endif
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
@ -145,48 +168,37 @@ Camera UpdateCamera(Vector3 *position)
return internalCamera;
}
void SetCameraControls(int frontKey, int leftKey, int backKey, int rightKey, int upKey, int downKey)
void SetCameraMoveControls(int frontKey, int backKey, int leftKey, int rightKey, int upKey, int downKey)
{
cameraMovementController[0] = frontKey;
cameraMovementController[1] = leftKey;
cameraMovementController[2] = backKey;
cameraMovementController[3] = rightKey;
cameraMovementController[4] = upKey;
cameraMovementController[5] = downKey;
cameraMoveControl[MOVE_FRONT] = frontKey;
cameraMoveControl[MOVE_LEFT] = leftKey;
cameraMoveControl[MOVE_BACK] = backKey;
cameraMoveControl[MOVE_RIGHT] = rightKey;
cameraMoveControl[MOVE_UP] = upKey;
cameraMoveControl[MOVE_DOWN] = downKey;
}
void SetCameraMouseSensitivity(float sensitivity)
{
mouseSensitivity = (sensitivity / 10000.0);
}
void SetCameraResetPosition(Vector3 resetPosition)
{
resetingPosition = resetPosition;
}
void SetCameraResetControl(int resetKey)
{
resetingKey = resetKey;
}
void SetCameraPawnControl(int pawnControlKey)
void SetCameraPanControl(int panKey)
{
pawnControllingKey = pawnControlKey;
panControlKey = panKey;
}
void SetCameraFnControl(int fnControlKey)
void SetCameraAltControl(int altKey)
{
fnControllingKey = fnControlKey;
altControlKey = altKey;
}
void SetCameraSmoothZoomControl(int smoothZoomControlKey)
void SetCameraSmoothZoomControl(int szKey)
{
smoothZoomControllingKey = smoothZoomControlKey;
smoothZoomControlKey = szKey;
}
void SetCameraOrbitalTarget(Vector3 target)
void SetCameraTarget(Vector3 target)
{
internalCamera.target = target;
}
@ -197,33 +209,43 @@ void SetCameraOrbitalTarget(Vector3 target)
//----------------------------------------------------------------------------------
// Process desired camera mode and controls
// NOTE: Camera controls depend on some raylib functions:
// Mouse: GetMousePosition(), SetMousePosition(), IsMouseButtonDown(), GetMouseWheelMove()
// System: GetScreenWidth(), GetScreenHeight(), ShowCursor(), HideCursor()
// Keys: IsKeyDown()
static void ProcessCamera(Camera *camera, Vector3 *playerPosition)
{
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB) || defined(PLATFORM_RPI)
// Mouse movement detection
Vector2 mousePosition = GetMousePosition();
int mouseWheelMove = GetMouseWheelMove();
int panKey = IsMouseButtonDown(panControlKey); // bool value
int screenWidth = GetScreenWidth();
int screenHeight = GetScreenHeight();
if ((cameraMode != CAMERA_FREE) && (cameraMode != CAMERA_ORBITAL))
{
HideCursor();
if (GetMousePosition().x < GetScreenHeight() / 3) SetMousePosition((Vector2){ GetScreenWidth() - GetScreenHeight() / 3, GetMousePosition().y});
else if (GetMousePosition().y < GetScreenHeight() / 3) SetMousePosition((Vector2){ GetMousePosition().x, GetScreenHeight() - GetScreenHeight() / 3});
else if (GetMousePosition().x > GetScreenWidth() - GetScreenHeight() / 3) SetMousePosition((Vector2) { GetScreenHeight() / 3, GetMousePosition().y});
else if (GetMousePosition().y > GetScreenHeight() - GetScreenHeight() / 3) SetMousePosition((Vector2){ GetMousePosition().x, GetScreenHeight() / 3});
if (mousePosition.x < screenHeight/3) SetMousePosition((Vector2){ screenWidth - screenHeight/3, mousePosition.y});
else if (mousePosition.y < screenHeight/3) SetMousePosition((Vector2){ mousePosition.x, screenHeight - screenHeight/3});
else if (mousePosition.x > screenWidth - screenHeight/3) SetMousePosition((Vector2) { screenHeight/3, mousePosition.y});
else if (mousePosition.y > screenHeight - screenHeight/3) SetMousePosition((Vector2){ mousePosition.x, screenHeight/3});
else
{
cameraMouseVariation.x = GetMousePosition().x - cameraMousePosition.x;
cameraMouseVariation.y = GetMousePosition().y - cameraMousePosition.y;
cameraMouseVariation.x = mousePosition.x - cameraMousePosition.x;
cameraMouseVariation.y = mousePosition.y - cameraMousePosition.y;
}
}
else
{
ShowCursor();
cameraMouseVariation.x = GetMousePosition().x - cameraMousePosition.x;
cameraMouseVariation.y = GetMousePosition().y - cameraMousePosition.y;
cameraMouseVariation.x = mousePosition.x - cameraMousePosition.x;
cameraMouseVariation.y = mousePosition.y - cameraMousePosition.y;
}
cameraMousePosition = GetMousePosition();
cameraMousePosition = mousePosition;
// Support for multiple automatic camera modes
switch (cameraMode)
@ -231,92 +253,93 @@ static void ProcessCamera(Camera *camera, Vector3 *playerPosition)
case CAMERA_FREE:
{
// Camera zoom
if ((cameraTargetDistance < FREE_CAMERA_DISTANCE_MAX_CLAMP) && (GetMouseWheelMove() < 0))
if ((cameraTargetDistance < FREE_CAMERA_DISTANCE_MAX_CLAMP) && (mouseWheelMove < 0))
{
cameraTargetDistance -= (GetMouseWheelMove() * CAMERA_SCROLL_SENSITIVITY);
cameraTargetDistance -= (mouseWheelMove*CAMERA_SCROLL_SENSITIVITY);
if (cameraTargetDistance > FREE_CAMERA_DISTANCE_MAX_CLAMP) cameraTargetDistance = FREE_CAMERA_DISTANCE_MAX_CLAMP;
}
// Camera looking down
else if ((camera->position.y > camera->target.y) && (cameraTargetDistance == FREE_CAMERA_DISTANCE_MAX_CLAMP) && (GetMouseWheelMove() < 0))
else if ((camera->position.y > camera->target.y) && (cameraTargetDistance == FREE_CAMERA_DISTANCE_MAX_CLAMP) && (mouseWheelMove < 0))
{
camera->target.x += GetMouseWheelMove() * (camera->target.x - camera->position.x) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.y += GetMouseWheelMove() * (camera->target.y - camera->position.y) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.z += GetMouseWheelMove() * (camera->target.z - camera->position.z) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
}
else if ((camera->position.y > camera->target.y) && (camera->target.y >= 0))
{
camera->target.x += GetMouseWheelMove() * (camera->target.x - camera->position.x) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.y += GetMouseWheelMove() * (camera->target.y - camera->position.y) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.z += GetMouseWheelMove() * (camera->target.z - camera->position.z) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
if (camera->target.y < 0) camera->target.y = -0.001;
}
else if ((camera->position.y > camera->target.y) && (camera->target.y < 0) && (GetMouseWheelMove() > 0))
else if ((camera->position.y > camera->target.y) && (camera->target.y < 0) && (mouseWheelMove > 0))
{
cameraTargetDistance -= (GetMouseWheelMove() * CAMERA_SCROLL_SENSITIVITY);
cameraTargetDistance -= (mouseWheelMove*CAMERA_SCROLL_SENSITIVITY);
if (cameraTargetDistance < FREE_CAMERA_DISTANCE_MIN_CLAMP) cameraTargetDistance = FREE_CAMERA_DISTANCE_MIN_CLAMP;
}
// Camera looking up
else if ((camera->position.y < camera->target.y) && (cameraTargetDistance == FREE_CAMERA_DISTANCE_MAX_CLAMP) && (GetMouseWheelMove() < 0))
else if ((camera->position.y < camera->target.y) && (cameraTargetDistance == FREE_CAMERA_DISTANCE_MAX_CLAMP) && (mouseWheelMove < 0))
{
camera->target.x += GetMouseWheelMove() * (camera->target.x - camera->position.x) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.y += GetMouseWheelMove() * (camera->target.y - camera->position.y) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.z += GetMouseWheelMove() * (camera->target.z - camera->position.z) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
}
else if ((camera->position.y < camera->target.y) && (camera->target.y <= 0))
{
camera->target.x += GetMouseWheelMove() * (camera->target.x - camera->position.x) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.y += GetMouseWheelMove() * (camera->target.y - camera->position.y) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.z += GetMouseWheelMove() * (camera->target.z - camera->position.z) * CAMERA_SCROLL_SENSITIVITY / cameraTargetDistance;
camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_SCROLL_SENSITIVITY/cameraTargetDistance;
if (camera->target.y > 0) camera->target.y = 0.001;
}
else if ((camera->position.y < camera->target.y) && (camera->target.y > 0) && (GetMouseWheelMove() > 0))
else if ((camera->position.y < camera->target.y) && (camera->target.y > 0) && (mouseWheelMove > 0))
{
cameraTargetDistance -= (GetMouseWheelMove() * CAMERA_SCROLL_SENSITIVITY);
cameraTargetDistance -= (mouseWheelMove * CAMERA_SCROLL_SENSITIVITY);
if (cameraTargetDistance < FREE_CAMERA_DISTANCE_MIN_CLAMP) cameraTargetDistance = FREE_CAMERA_DISTANCE_MIN_CLAMP;
}
// Inputs
if (IsKeyDown(fnControllingKey))
if (IsKeyDown(altControlKey))
{
if (IsKeyDown(smoothZoomControllingKey))
if (IsKeyDown(smoothZoomControlKey))
{
// Camera smooth zoom
if (IsMouseButtonDown(pan class="n">pawnControllingKey)) cameraTargetDistance += (cameraMouseVariation.y * FREE_CAMERA_SMOOTH_ZOOM_SENSITIVITY);
if (panKey) cameraTargetDistance += (cameraMouseVariation.y*FREE_CAMERA_SMOOTH_ZOOM_SENSITIVITY);
}
// Camera orientation calculation
else if (IsMouseButtonDown(pan class="n">pawnControllingKey))
else if (panKey)
{
// Camera orientation calculation
// Get the mouse sensitivity
cameraAngle.x += cameraMouseVariation.x * -FREE_CAMERA_MOUSE_SENSITIVITY;
cameraAngle.y += cameraMouseVariation.y * -FREE_CAMERA_MOUSE_SENSITIVITY;
cameraAngle.x += cameraMouseVariation.x*-FREE_CAMERA_MOUSE_SENSITIVITY;
cameraAngle.y += cameraMouseVariation.y*-FREE_CAMERA_MOUSE_SENSITIVITY;
// Angle clamp
if (cameraAngle.y > FREE_CAMERA_MIN_CLAMP * DEG2RAD) cameraAngle.y = FREE_CAMERA_MIN_CLAMP * DEG2RAD;
else if (cameraAngle.y < FREE_CAMERA_MAX_CLAMP * DEG2RAD) cameraAngle.y = FREE_CAMERA_MAX_CLAMP * DEG2RAD;
if (cameraAngle.y > FREE_CAMERA_MIN_CLAMP*DEG2RAD) cameraAngle.y = FREE_CAMERA_MIN_CLAMP*DEG2RAD;
else if (cameraAngle.y < FREE_CAMERA_MAX_CLAMP*DEG2RAD) cameraAngle.y = FREE_CAMERA_MAX_CLAMP*DEG2RAD;
}
}
// Paning
else if (IsMouseButtonDown(pan class="n">pawnControllingKey))
else if (panKey)
{
camera->target.x += ((cameraMouseVariation.x * -FREE_CAMERA_MOUSE_SENSITIVITY) * cos(cameraAngle.x) + (cameraMouseVariation.y * FREE_CAMERA_MOUSE_SENSITIVITY) * sin(cameraAngle.x) * sin(cameraAngle.y)) * (cameraTargetDistance / FREE_CAMERA_PANNING_DIVIDER);
camera->target.y += ((cameraMouseVariation.y * FREE_CAMERA_MOUSE_SENSITIVITY) * cos(cameraAngle.y)) * (cameraTargetDistance / FREE_CAMERA_PANNING_DIVIDER);
camera->target.z += ((cameraMouseVariation.x * FREE_CAMERA_MOUSE_SENSITIVITY) * sin(cameraAngle.x) + (cameraMouseVariation.y * FREE_CAMERA_MOUSE_SENSITIVITY) * cos(cameraAngle.x) * sin(cameraAngle.y)) * (cameraTargetDistance / FREE_CAMERA_PANNING_DIVIDER);
camera->target.x += ((cameraMouseVariation.x*-FREE_CAMERA_MOUSE_SENSITIVITY)*cos(cameraAngle.x) + (cameraMouseVariation.y*FREE_CAMERA_MOUSE_SENSITIVITY)*sin(cameraAngle.x)*sin(cameraAngle.y))*(cameraTargetDistance/FREE_CAMERA_PANNING_DIVIDER);
camera->target.y += ((cameraMouseVariation.y*FREE_CAMERA_MOUSE_SENSITIVITY)*cos(cameraAngle.y))*(cameraTargetDistance/FREE_CAMERA_PANNING_DIVIDER);
camera->target.z += ((cameraMouseVariation.x*FREE_CAMERA_MOUSE_SENSITIVITY)*sin(cameraAngle.x) + (cameraMouseVariation.y*FREE_CAMERA_MOUSE_SENSITIVITY)*cos(cameraAngle.x)*sin(cameraAngle.y))*(cameraTargetDistance/FREE_CAMERA_PANNING_DIVIDER);
}
// Focus to center
if (IsKeyDown(resetingKey)) camera->target = resetingPosition;
// TODO: Move this function out of the module?
if (IsKeyDown('Z')) camera->target = (Vector3){ 0, 0, 0 };
// Camera position update
camera->position.x = sin(cameraAngle.x) * cameraTargetDistance * cos(cameraAngle.y) + camera->target.x;
camera->position.x = sin(cameraAngle.x)*cameraTargetDistance*cos(cameraAngle.y) + camera->target.x;
if (cameraAngle.y <= 0) camera->position.y = sin(cameraAngle.y) * cameraTargetDistance * sin(cameraAngle.y) + camera->target.y;
else camera->position.y = -sin(cameraAngle.y) * cameraTargetDistance * sin(cameraAngle.y) + camera->target.y;
if (cameraAngle.y <= 0) camera->position.y = sin(cameraAngle.y)*cameraTargetDistance*sin(cameraAngle.y) + camera->target.y;
else camera->position.y = -sin(cameraAngle.y)*cameraTargetDistance*sin(cameraAngle.y) + camera->target.y;
camera->position.z = cos(cameraAngle.x) * cameraTargetDistance * cos(cameraAngle.y) + camera->target.z;
camera->position.z = cos(cameraAngle.x)*cameraTargetDistance*cos(cameraAngle.y) + camera->target.z;
} break;
case CAMERA_ORBITAL:
@ -324,126 +347,126 @@ static void ProcessCamera(Camera *camera, Vector3 *playerPosition)
cameraAngle.x += ORBITAL_CAMERA_SPEED;
// Camera zoom
cameraTargetDistance -= (GetMouseWheelMove() * CAMERA_SCROLL_SENSITIVITY);
cameraTargetDistance -= (mouseWheelMove*CAMERA_SCROLL_SENSITIVITY);
// Camera distance clamp
if (cameraTargetDistance < THIRD_PERSON_DISTANCE_CLAMP) cameraTargetDistance = THIRD_PERSON_DISTANCE_CLAMP;
// Focus to center
if (IsKeyDown('Z')) camera->target = (Vector3) { 0, 0, 0 };
if (IsKeyDown('Z')) camera->target = (Vector3){ 0, 0, 0 };
// Camera position update
camera->position.x = sin(cameraAngle.x) * cameraTargetDistance * cos(cameraAngle.y) + camera->target.x;
camera->position.x = sin(cameraAngle.x)*cameraTargetDistance*cos(cameraAngle.y) + camera->target.x;
if (cameraAngle.y <= 0) camera->position.y = sin(cameraAngle.y) * cameraTargetDistance * sin(cameraAngle.y) + camera->target.y;
else camera->position.y = -sin(cameraAngle.y) * cameraTargetDistance * sin(cameraAngle.y) + camera->target.y;
if (cameraAngle.y <= 0) camera->position.y = sin(cameraAngle.y)*cameraTargetDistance*sin(cameraAngle.y) + camera->target.y;
else camera->position.y = -sin(cameraAngle.y)*cameraTargetDistance*sin(cameraAngle.y) + camera->target.y;
camera->position.z = cos(cameraAngle.x) * cameraTargetDistance * cos(cameraAngle.y) + camera->target.z;
camera->position.z = cos(cameraAngle.x)*cameraTargetDistance*cos(cameraAngle.y) + camera->target.z;
} break;
case CAMERA_FIRST_PERSON:
case CAMERA_THIRD_PERSON:
{
bool isMoving = false;
int isMoving = 0;
// Keyboard inputs
if (IsKeyDown(cameraMovementController[0]))
if (IsKeyDown(cameraMoveControl[MOVE_FRONT]))
{
playerPosition->x -= sin(cameraAngle.x) / PLAYER_MOVEMENT_DIVIDER;
playerPosition->z -= cos(cameraAngle.x) / PLAYER_MOVEMENT_DIVIDER;
if (!cameraUseGravity) camera->position.y += sin(cameraAngle.y) / PLAYER_MOVEMENT_DIVIDER;
playerPosition->x -= sin(cameraAngle.x)/PLAYER_MOVEMENT_DIVIDER;
playerPosition->z -= cos(cameraAngle.x)/PLAYER_MOVEMENT_DIVIDER;
if (!cameraUseGravity) camera->position.y += sin(cameraAngle.y)/PLAYER_MOVEMENT_DIVIDER;
isMoving = nb">true;
isMoving = mi">1;
}
else if (IsKeyDown(cameraMovementController[2]))
else if (IsKeyDown(cameraMoveControl[MOVE_BACK]))
{
playerPosition->x += sin(cameraAngle.x) / PLAYER_MOVEMENT_DIVIDER;
playerPosition->z += cos(cameraAngle.x) / PLAYER_MOVEMENT_DIVIDER;
if (!cameraUseGravity) camera->position.y -= sin(cameraAngle.y) / PLAYER_MOVEMENT_DIVIDER;
playerPosition->x += sin(cameraAngle.x)/PLAYER_MOVEMENT_DIVIDER;
playerPosition->z += cos(cameraAngle.x)/PLAYER_MOVEMENT_DIVIDER;
if (!cameraUseGravity) camera->position.y -= sin(cameraAngle.y)/PLAYER_MOVEMENT_DIVIDER;
isMoving = nb">true;
isMoving = mi">1;
}
if (IsKeyDown(cameraMovementController[1]))
if (IsKeyDown(cameraMoveControl[MOVE_LEFT]))
{
playerPosition->x -= cos(cameraAngle.x) / PLAYER_MOVEMENT_DIVIDER;
playerPosition->z += sin(cameraAngle.x) / PLAYER_MOVEMENT_DIVIDER;
playerPosition->x -= cos(cameraAngle.x)/PLAYER_MOVEMENT_DIVIDER;
playerPosition->z += sin(cameraAngle.x)/PLAYER_MOVEMENT_DIVIDER;
isMoving = nb">true;
isMoving = mi">1;
}
else if (IsKeyDown(cameraMovementController[3]))
else if (IsKeyDown(cameraMoveControl[MOVE_RIGHT]))
{
playerPosition->x += cos(cameraAngle.x) / PLAYER_MOVEMENT_DIVIDER;
playerPosition->z -= sin(cameraAngle.x) / PLAYER_MOVEMENT_DIVIDER;
playerPosition->x += cos(cameraAngle.x)/PLAYER_MOVEMENT_DIVIDER;
playerPosition->z -= sin(cameraAngle.x)/PLAYER_MOVEMENT_DIVIDER;
isMoving = nb">true;
isMoving = mi">1;
}
if (IsKeyDown(cameraMovementController[4]))
if (IsKeyDown(cameraMoveControl[MOVE_UP]))
{
if (!cameraUseGravity) playerPosition->y += 1 / PLAYER_MOVEMENT_DIVIDER;
if (!cameraUseGravity) playerPosition->y += 1/PLAYER_MOVEMENT_DIVIDER;
}
else if (IsKeyDown(cameraMovementController[5]))
else if (IsKeyDown(cameraMoveControl[MOVE_DOWN]))
{
if (!cameraUseGravity) playerPosition->y -= 1 / PLAYER_MOVEMENT_DIVIDER;
if (!cameraUseGravity) playerPosition->y -= 1/PLAYER_MOVEMENT_DIVIDER;
}
if (cameraMode == CAMERA_THIRD_PERSON)
{
// Camera orientation calculation
// Get the mouse sensitivity
cameraAngle.x += cameraMouseVariation.x * -mouseSensitivity;
cameraAngle.y += cameraMouseVariation.y * -mouseSensitivity;
cameraAngle.x += cameraMouseVariation.x*-mouseSensitivity;
cameraAngle.y += cameraMouseVariation.y*-mouseSensitivity;
// Angle clamp
if (cameraAngle.y > THIRD_PERSON_MIN_CLAMP * DEG2RAD) cameraAngle.y = THIRD_PERSON_MIN_CLAMP * DEG2RAD;
else if (cameraAngle.y < THIRD_PERSON_MAX_CLAMP * DEG2RAD) cameraAngle.y = THIRD_PERSON_MAX_CLAMP * DEG2RAD;
if (cameraAngle.y > THIRD_PERSON_MIN_CLAMP*DEG2RAD) cameraAngle.y = THIRD_PERSON_MIN_CLAMP*DEG2RAD;
else if (cameraAngle.y < THIRD_PERSON_MAX_CLAMP*DEG2RAD) cameraAngle.y = THIRD_PERSON_MAX_CLAMP*DEG2RAD;
// Camera zoom
cameraTargetDistance -= (GetMouseWheelMove() * CAMERA_SCROLL_SENSITIVITY);
cameraTargetDistance -= (mouseWheelMove*CAMERA_SCROLL_SENSITIVITY);
// Camera distance clamp
if (cameraTargetDistance < THIRD_PERSON_DISTANCE_CLAMP) cameraTargetDistance = THIRD_PERSON_DISTANCE_CLAMP;
// Camera is always looking at player
camera->target.x = playerPosition->x + THIRD_PERSON_OFFSET.x * cos(cameraAngle.x) + THIRD_PERSON_OFFSET.z * sin(cameraAngle.x);
camera->target.y = playerPosition->y + PLAYER_HEIGHT * FIRST_PERSON_HEIGHT_RELATIVE_EYES_POSITION + THIRD_PERSON_OFFSET.y;
camera->target.z = playerPosition->z + THIRD_PERSON_OFFSET.z * sin(cameraAngle.x) - THIRD_PERSON_OFFSET.x * sin(cameraAngle.x);
camera->target.x = playerPosition->x + THIRD_PERSON_OFFSET.x*cos(cameraAngle.x) + THIRD_PERSON_OFFSET.z*sin(cameraAngle.x);
camera->target.y = playerPosition->y + PLAYER_HEIGHT*FIRST_PERSON_HEIGHT_RELATIVE_EYES_POSITION + THIRD_PERSON_OFFSET.y;
camera->target.z = playerPosition->z + THIRD_PERSON_OFFSET.z*sin(cameraAngle.x) - THIRD_PERSON_OFFSET.x*sin(cameraAngle.x);
// Camera position update
camera->position.x = sin(cameraAngle.x) * cameraTargetDistance * cos(cameraAngle.y) + camera->target.x;
camera->position.x = sin(cameraAngle.x)*cameraTargetDistance*cos(cameraAngle.y) + camera->target.x;
if (cameraAngle.y <= 0) camera->position.y = sin(cameraAngle.y) * cameraTargetDistance * sin(cameraAngle.y) + camera->target.y;
else camera->position.y = -sin(cameraAngle.y) * cameraTargetDistance * sin(cameraAngle.y) + camera->target.y;
if (cameraAngle.y <= 0) camera->position.y = sin(cameraAngle.y)*cameraTargetDistance*sin(cameraAngle.y) + camera->target.y;
else camera->position.y = -sin(cameraAngle.y)*cameraTargetDistance*sin(cameraAngle.y) + camera->target.y;
camera->position.z = cos(cameraAngle.x) * cameraTargetDistance * cos(cameraAngle.y) + camera->target.z;
camera->position.z = cos(cameraAngle.x)*cameraTargetDistance*cos(cameraAngle.y) + camera->target.z;
}
else
else // CAMERA_FIRST_PERSON
{
if (isMoving) cameraMovementCounter++;
if (isMoving) cameraMoveCounter++;
// Camera orientation calculation
// Get the mouse sensitivity
cameraAngle.x += cameraMouseVariation.x * -mouseSensitivity;
cameraAngle.y += cameraMouseVariation.y * -mouseSensitivity;
cameraAngle.x += cameraMouseVariation.x*-mouseSensitivity;
cameraAngle.y += cameraMouseVariation.y*-mouseSensitivity;
// Angle clamp
if (cameraAngle.y > FIRST_PERSON_MIN_CLAMP * DEG2RAD) cameraAngle.y = FIRST_PERSON_MIN_CLAMP * DEG2RAD;
else if (cameraAngle.y < FIRST_PERSON_MAX_CLAMP * DEG2RAD) cameraAngle.y = FIRST_PERSON_MAX_CLAMP * DEG2RAD;
if (cameraAngle.y > FIRST_PERSON_MIN_CLAMP*DEG2RAD) cameraAngle.y = FIRST_PERSON_MIN_CLAMP*DEG2RAD;
else if (cameraAngle.y < FIRST_PERSON_MAX_CLAMP*DEG2RAD) cameraAngle.y = FIRST_PERSON_MAX_CLAMP*DEG2RAD;
// Camera is always looking at player
camera->target.x = camera->position.x - sin(cameraAngle.x) * FIRST_PERSON_FOCUS_DISTANCE;
camera->target.y = camera->position.y + sin(cameraAngle.y) * FIRST_PERSON_FOCUS_DISTANCE;
camera->target.z = camera->position.z - cos(cameraAngle.x) * FIRST_PERSON_FOCUS_DISTANCE;
camera->target.x = camera->position.x - sin(cameraAngle.x)*FIRST_PERSON_FOCUS_DISTANCE;
camera->target.y = camera->position.y + sin(cameraAngle.y)*FIRST_PERSON_FOCUS_DISTANCE;
camera->target.z = camera->position.z - cos(cameraAngle.x)*FIRST_PERSON_FOCUS_DISTANCE;
camera->position.x = playerPosition->x;
camera->position.y = (playerPosition->y + PLAYER_HEIGHT * FIRST_PERSON_HEIGHT_RELATIVE_EYES_POSITION) - sin(cameraMovementCounter / FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER) / FIRST_PERSON_STEP_DIVIDER;
camera->position.y = (playerPosition->y + PLAYER_HEIGHT*FIRST_PERSON_HEIGHT_RELATIVE_EYES_POSITION) - sin(cameraMoveCounter/FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER)/FIRST_PERSON_STEP_DIVIDER;
camera->position.z = playerPosition->z;
camera->up.x = sin(cameraMovementCounter / (FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER * 2)) / FIRST_PERSON_WAVING_DIVIDER;
camera->up.z = -sin(cameraMovementCounter / (FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER * 2)) / FIRST_PERSON_WAVING_DIVIDER;
camera->up.x = sin(cameraMoveCounter/(FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER*2))/FIRST_PERSON_WAVING_DIVIDER;
camera->up.z = -sin(cameraMoveCounter/(FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER*2))/FIRST_PERSON_WAVING_DIVIDER;
}
} break;
default: break;
}
#endif
}
}

+ 39
- 12
src/camera.h Wyświetl plik

@ -24,7 +24,12 @@
#ifndef CAMERA_H
#define CAMERA_H
#include "raylib.h"
#ifndef PI
#define PI 3.14159265358979323846
#endif
#define DEG2RAD (PI / 180.0f)
#define RAD2DEG (180.0f / PI)
//----------------------------------------------------------------------------------
// Defines and Macros
@ -33,10 +38,30 @@
//----------------------------------------------------------------------------------
// Types and Structures Definition
// NOTE: Below types are required for CAMERA_STANDALONE usage
//----------------------------------------------------------------------------------
// Camera modes
typedef enum { CAMERA_CUSTOM = 0, CAMERA_FREE, CAMERA_ORBITAL, CAMERA_FIRST_PERSON, CAMERA_THIRD_PERSON } CameraMode;
// Vector2 type
typedef struct Vector2 {
float x;
float y;
} Vector2;
// Vector3 type
typedef struct Vector3 {
float x;
float y;
float z;
} Vector3;
// Camera type, defines a camera position/orientation in 3d space
typedef struct Camera {
Vector3 position;
Vector3 target;
Vector3 up;
} Camera;
#ifdef __cplusplus
extern "C" { // Prevents name mangling of functions
@ -50,17 +75,19 @@ extern "C" { // Prevents name mangling of functions
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
void SetCameraMode(int mode); // Select camera mode (multiple camera modes available)
Camera UpdateCamera(Vector3 *position); // Update camera with position
void SetCameraControls(int front, int left, int back, int right, int up, int down);
void SetCameraMouseSensitivity(float sensitivity);
void SetCameraResetPosition(Vector3 resetPosition);
void SetCameraResetControl(int resetKey);
void SetCameraPawnControl(int pawnControlKey);
void SetCameraFnControl(int fnControlKey);
void SetCameraSmoothZoomControl(int smoothZoomControlKey);
void SetCameraOrbitalTarget(Vector3 target);
void SetCameraMode(int mode); // Set camera mode (multiple camera modes available)
Camera UpdateCamera(Vector3 *playerPosition); // Update camera and player position (1st person and 3rd person cameras)
void SetCameraMoveControls(int frontKey, int backKey,
int leftKey, int rightKey,
int upKey, int downKey); // Set camera move controls (1st person and 3rd person cameras)
void SetCameraPanControl(int panKey); // Set camera pan key to combine with mouse movement (free camera)
void SetCameraAltControl(int altKey); // Set camera alt key to combine with mouse movement (free camera)
void SetCameraSmoothZoomControl(int szKey); // Set camera smooth zoom key to combine with mouse (free camera)
void SetCameraMouseSensitivity(float sensitivity); // Set camera mouse sensitivity (1st person and 3rd person cameras)
void SetCameraTarget(Vector3 target); // Set internal camera target
#ifdef __cplusplus
}

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