core functionality CAMERA_FREE
This commit is contained in:
Crydsch
parent
234576da71
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864da80858
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@ -49,6 +49,9 @@ int main(void)
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SetCameraMode(camera, CAMERA_FIRST_PERSON); // Set a first person camera mode
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// Catch cursor
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DisableCursor();
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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@ -307,6 +307,7 @@ typedef struct Camera3D {
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Vector3 up; // Camera up vector (rotation over its axis)
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float fovy; // Camera field-of-view apperture in Y (degrees) in perspective, used as near plane width in orthographic
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int projection; // Camera projection: CAMERA_PERSPECTIVE or CAMERA_ORTHOGRAPHIC
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int mode; // Camera mode: CAMERA_FREE, CAMERA_FIRST_PERSON, CAMERA_THIRD_PERSON, CAMERA_ORBITAL or CUSTOM
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} Camera3D;
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typedef Camera3D Camera; // Camera type fallback, defaults to Camera3D
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@ -1151,7 +1152,7 @@ RLAPI float GetGesturePinchAngle(void); // Get gesture pinch ang
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//------------------------------------------------------------------------------------
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// Camera System Functions (Module: rcamera)
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//------------------------------------------------------------------------------------
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RLAPI void SetCameraMode(Camera camera, int mode); // Set camera mode (multiple camera modes available)
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RLAPI void SetCameraMode(Camera* camera, int mode); // Set camera mode (multiple camera modes available)
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RLAPI void UpdateCamera(Camera *camera); // Update camera position for selected mode
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RLAPI void SetCameraPanControl(int keyPan); // Set camera pan key to combine with mouse movement (free camera)
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595
src/rcamera.h
595
src/rcamera.h
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@ -2,7 +2,7 @@
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*
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* rcamera - Basic camera system for multiple camera modes
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*
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* NOTE: Memory footprint of this library is aproximately 52 bytes (global variables)
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* NOTE: Memory footprint of this library is aproximately ??? TODO bytes (global variables)
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*
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* CONFIGURATION:
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*
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@ -17,6 +17,7 @@
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*
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* CONTRIBUTORS:
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* Ramon Santamaria: Supervision, review, update and maintenance
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* Christoph Wagner: Redesign (2022)
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* Marc Palau: Initial implementation (2014)
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*
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*
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@ -44,15 +45,26 @@
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#ifndef RCAMERA_H
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#define RCAMERA_H
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// The only dependency // TODO review standalone mode
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#include "raymath.h"
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//----------------------------------------------------------------------------------
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// Defines and Macros
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//----------------------------------------------------------------------------------
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//...
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#if defined(CAMERA_STANDALONE)
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#define CAMERA_CULL_DISTANCE_NEAR 0.01
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#define CAMERA_CULL_DISTANCE_FAR 1000.0
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#else
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#define CAMERA_CULL_DISTANCE_NEAR RL_CULL_DISTANCE_NEAR
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#define CAMERA_CULL_DISTANCE_FAR RL_CULL_DISTANCE_FAR
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#endif
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//----------------------------------------------------------------------------------
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// Types and Structures Definition
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// NOTE: Below types are required for CAMERA_STANDALONE usage
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//----------------------------------------------------------------------------------
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// TODO review
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#if defined(CAMERA_STANDALONE)
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// Vector2 type
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typedef struct Vector2 {
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@ -134,42 +146,16 @@ void SetCameraMoveControls(int keyFront, int keyBack,
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#if defined(CAMERA_IMPLEMENTATION)
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#include <math.h> // Required for: sinf(), cosf(), sqrtf()
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//----------------------------------------------------------------------------------
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// Defines and Macros
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//----------------------------------------------------------------------------------
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#ifndef PI
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#define PI 3.14159265358979323846
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#endif
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#ifndef DEG2RAD
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#define DEG2RAD (PI/180.0f)
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#endif
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#ifndef RAD2DEG
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#define RAD2DEG (180.0f/PI)
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#endif
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// Camera mouse movement sensitivity
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#define CAMERA_MOUSE_MOVE_SENSITIVITY 0.5f // TODO: it should be independant of framerate
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#define CAMERA_MOUSE_SCROLL_SENSITIVITY 1.5f
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// FREE_CAMERA
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#define CAMERA_FREE_MOUSE_SENSITIVITY 0.01f
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#define CAMERA_FREE_DISTANCE_MIN_CLAMP 0.3f
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#define CAMERA_FREE_DISTANCE_MAX_CLAMP 120.0f
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#define CAMERA_FREE_MIN_CLAMP 85.0f
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#define CAMERA_FREE_MAX_CLAMP -85.0f
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#define CAMERA_FREE_SMOOTH_ZOOM_SENSITIVITY 0.05f
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#define CAMERA_FREE_PANNING_DIVIDER 5.1f
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#define CAMERA_ORBITAL_SPEED 0.01f // Radians per frame
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// ORBITAL_CAMERA
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#define CAMERA_ORBITAL_SPEED 0.5f // Radians per second
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// FIRST_PERSON
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//#define CAMERA_FIRST_PERSON_MOUSE_SENSITIVITY 0.003f
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#define CAMERA_FIRST_PERSON_FOCUS_DISTANCE 25.0f
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#define CAMERA_FIRST_PERSON_MIN_CLAMP 89.0f
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#define CAMERA_FIRST_PERSON_MAX_CLAMP -89.0f
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// When walking, y-position of the player moves up-down at step frequency (swinging) but
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// also the body slightly tilts left-right on every step, when all the body weight is left over one foot (tilting)
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@ -177,13 +163,6 @@ void SetCameraMoveControls(int keyFront, int keyBack,
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#define CAMERA_FIRST_PERSON_SWINGING_DELTA 0.03f // Maximum up-down swinging distance when walking
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#define CAMERA_FIRST_PERSON_TILTING_DELTA 0.005f // Maximum left-right tilting distance when walking
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// THIRD_PERSON
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//#define CAMERA_THIRD_PERSON_MOUSE_SENSITIVITY 0.003f
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#define CAMERA_THIRD_PERSON_DISTANCE_CLAMP 1.2f
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#define CAMERA_THIRD_PERSON_MIN_CLAMP 5.0f
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#define CAMERA_THIRD_PERSON_MAX_CLAMP -85.0f
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#define CAMERA_THIRD_PERSON_OFFSET (Vector3){ 0.4f, 0.0f, 0.0f }
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// PLAYER (used by camera)
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#define PLAYER_MOVEMENT_SENSITIVITY 2.0f
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@ -192,7 +171,7 @@ void SetCameraMoveControls(int keyFront, int keyBack,
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//----------------------------------------------------------------------------------
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// Camera move modes (first person and third person cameras)
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typedef enum {
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MOVE_FRONT = 0,
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MOVE_FORWARD = 0,
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MOVE_BACK,
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MOVE_RIGHT,
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MOVE_LEFT,
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@ -201,339 +180,281 @@ typedef enum {
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} CameraMove;
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// Camera global state context data [56 bytes]
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typedef struct {
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unsigned int mode; // Current camera mode
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float targetDistance; // Camera distance from position to target
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float playerEyesPosition; // Player eyes position from ground (in meters)
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Vector2 angle; // Camera angle in plane XZ
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// typedef struct {
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// unsigned int mode; // Current camera mode
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// float targetDistance; // Camera distance from position to target
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// float playerEyesPosition; // Player eyes position from ground (in meters)
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// Vector2 angle; // Camera angle in plane XZ
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// Vector2 previousMousePosition; // Previous mouse position
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// Camera movement control keys
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int moveControl[6]; // Move controls (CAMERA_FIRST_PERSON)
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int smoothZoomControl; // Smooth zoom control key
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int altControl; // Alternative control key
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int panControl; // Pan view control key
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} CameraData;
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// // Camera movement control keys
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// int moveControl[6]; // Move controls (CAMERA_FIRST_PERSON)
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// int smoothZoomControl; // Smooth zoom control key
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// int altControl; // Alternative control key
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// int panControl; // Pan view control key
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// } CameraData;
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//----------------------------------------------------------------------------------
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// Global Variables Definition
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//----------------------------------------------------------------------------------
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static CameraData CAMERA = { // Global CAMERA state context
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.mode = 0,
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.targetDistance = 0,
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.playerEyesPosition = 1.85f,
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.angle = { 0 },
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.moveControl = { 'W', 'S', 'D', 'A', 'E', 'Q' },
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.smoothZoomControl = 341, // raylib: KEY_LEFT_CONTROL
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.altControl = 342, // raylib: KEY_LEFT_ALT
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.panControl = 2 // raylib: MOUSE_BUTTON_MIDDLE
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};
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// static CameraData CAMERA = { // Global CAMERA state context
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// .mode = 0,
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// .targetDistance = 0,
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// .playerEyesPosition = 1.85f,
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// .angle = { 0 },
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// .previousMousePosition = { 0 },
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// .moveControl = { 'W', 'S', 'D', 'A', 'E', 'Q' },
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// .smoothZoomControl = 341, // raylib: KEY_LEFT_CONTROL
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// .altControl = 342, // raylib: KEY_LEFT_ALT
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// .panControl = 2 // raylib: MOUSE_BUTTON_MIDDLE
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// };
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//----------------------------------------------------------------------------------
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// Module specific Functions Declaration
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//----------------------------------------------------------------------------------
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#if defined(CAMERA_STANDALONE)
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// NOTE: Camera controls depend on some raylib input functions
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static void EnableCursor() {} // Unlock cursor
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static void DisableCursor() {} // Lock cursor
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static int IsKeyDown(int key) { return 0; }
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static int IsMouseButtonDown(int button) { return 0;}
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static float GetMouseWheelMove() { return 0.0f; }
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static Vector2 GetMousePosition() { return (Vector2){ 0.0f, 0.0f }; }
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#endif
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// Rotates the given vector around the given axis
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// Note: angle must be provided in radians
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Vector3 Vector3RotateAxis(Vector3 v, Vector3 axis, float angle) { // TODO there is a better way without the intermediate matrix
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Matrix rot = MatrixRotate(axis, angle);
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return Vector3Transform(v, rot);
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}
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//----------------------------------------------------------------------------------
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// Module Functions Definition
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//----------------------------------------------------------------------------------
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// TODO declare all functions in raylib.h and standalone "header"
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void CameraPitch(Camera3D* camera, float angle);
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void CameraYaw(Camera3D* camera, float angle);
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void CameraRoll(Camera3D* camera, float angle);
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// Select camera mode (multiple camera modes available)
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void SetCameraMode(Camera camera, int mode)
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void SetCameraMode(Camera3D* camera, int mode)
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{
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Vector3 v1 = camera.position;
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Vector3 v2 = camera.target;
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camera->mode = mode;
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float dx = v2.x - v1.x;
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float dy = v2.y - v1.y;
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float dz = v2.z - v1.z;
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// TODO
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CAMERA.targetDistance = sqrtf(dx*dx + dy*dy + dz*dz); // Distance to target
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// TODO Reset roll and fix overrotation (i.e. somersaults)
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// Camera angle calculation
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CAMERA.angle.x = atan2f(dx, dz); // Camera angle in plane XZ (0 aligned with Z, move positive CCW)
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CAMERA.angle.y = atan2f(dy, sqrtf(dx*dx + dz*dz)); // Camera angle in plane XY (0 aligned with X, move positive CW)
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CAMERA.playerEyesPosition = camera.position.y; // Init player eyes position to camera Y position
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// Lock cursor for first person and third person cameras
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if ((mode == CAMERA_FIRST_PERSON) || (mode == CAMERA_THIRD_PERSON)) DisableCursor();
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else EnableCursor();
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CAMERA.mode = mode;
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}
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// Update camera depending on selected mode
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// NOTE: Camera controls depend on some raylib functions:
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// System: EnableCursor(), DisableCursor()
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// Mouse: IsMouseButtonDown(), GetMousePosition(), GetMouseWheelMove()
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// Keys: IsKeyDown()
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void UpdateCamera(Camera *camera)
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// Returns the cameras current forward vector (normalized)
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Vector3 GetCameraForward(Camera3D* camera) {
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return Vector3Normalize(Vector3Subtract(camera->target, camera->position));
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}
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// Returns the cameras current up vector (normalized)
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Vector3 GetCameraUp(Camera3D* camera) {
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// Note: The up vector might not be perpendicular to the forward vector
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Vector3 forward = Vector3Subtract(camera->target, camera->position);
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Vector3OrthoNormalize(&forward, &camera->up);
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return camera->up;
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}
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// Returns the cameras current right vector (normalized)
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Vector3 GetCameraRight(Camera3D* camera) {
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Vector3 forward = GetCameraForward(camera);
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Vector3 up = GetCameraUp(camera);
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return Vector3CrossProduct(forward, up);
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}
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// Moves the camera in its current forward vector direction
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void CameraMoveForward(Camera3D *camera, float distance) {
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Vector3 forward = GetCameraForward(camera);
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if (camera->mode == CAMERA_FIRST_PERSON ||
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camera->mode == CAMERA_THIRD_PERSON)
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{
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static float swingCounter = 0.0f; // Used for 1st person swinging movement
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// Project vector onto world plane
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forward.y = 0;
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forward = Vector3Normalize(forward);
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}
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// TODO: Compute CAMERA.targetDistance and CAMERA.angle here (?)
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forward = Vector3Scale(forward, distance);
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// Mouse movement detection
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camera->position = Vector3Add(camera->position, forward);
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camera->target = Vector3Add(camera->target, forward);
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}
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// Moves the camera in its current up vector direction
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void CameraMoveUp(Camera3D *camera, float distance) {
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Vector3 up = GetCameraUp(camera);
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up = Vector3Scale(up, distance);
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camera->position = Vector3Add(camera->position, up);
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camera->target = Vector3Add(camera->target, up);
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}
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// Moves the camera target in its current right vector direction
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void CameraMoveRight(Camera3D *camera, float distance) {
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Vector3 right = GetCameraRight(camera);
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if (camera->mode == CAMERA_FIRST_PERSON ||
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camera->mode == CAMERA_THIRD_PERSON)
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{
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// Project vector onto world plane
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right.y = 0;
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right = Vector3Normalize(right);
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}
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right = Vector3Scale(right, distance);
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camera->position = Vector3Add(camera->position, right);
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camera->target = Vector3Add(camera->target, right);
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}
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// Rotates the camera around its current up vector
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// Yaw is "looking left and right"
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// Note: angle must be provided in radians
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void CameraYaw(Camera3D *camera, float angle) {
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// Rotation axis
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Vector3 up = GetCameraUp(camera);
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Vector3 target_position = Vector3Subtract(camera->target, camera->position);
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// Rotate target
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target_position = Vector3RotateAxis(target_position, up, angle);
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camera->target = Vector3Add(camera->position, target_position);
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}
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// Rotates the camera around its current right vector
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// Pitch is "looking up and down"
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// Note: angle must be provided in radians
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void CameraPitch(Camera3D *camera, float angle) {
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if (camera->mode == CAMERA_FIRST_PERSON ||
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camera->mode == CAMERA_THIRD_PERSON ||
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camera->mode == CAMERA_ORBITAL)
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{
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// In these camera modes we clamp the Pitch angle
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// to allow only viewing straight up or down.
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// i.e. prevent somersaults
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// TODO
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}
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// Rotation axis
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Vector3 right = GetCameraRight(camera);
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Vector3 target_position = Vector3Subtract(camera->target, camera->position);
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// Rotate target
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target_position = Vector3RotateAxis(target_position, right, angle);
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camera->target = Vector3Add(camera->position, target_position);
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// Rotate up direction
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camera->up = Vector3RotateAxis(camera->up, right, angle);
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}
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// Rotates the camera around its current forward vector
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// Roll is "turning your head sideways to the left or right"
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// Note: angle must be provided in radians
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void CameraRoll(Camera3D *camera, float angle) {
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// Rotation axis
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Vector3 forward = GetCameraForward(camera);
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// Rotate up direction
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camera->up = Vector3RotateAxis(camera->up, forward, angle);
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}
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// Returns the current camera view matrix
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Matrix GetCameraViewMatrix(Camera3D* camera) {
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// Note: MatrixLookAt normalizes up internally
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// TODO review up needs to be perpendicular?
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return MatrixLookAt(camera->position, camera->target, camera->up);
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}
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// Returns the current camera projection matrix
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Matrix GetCameraProjectionMatrix(Camera3D* camera, float aspect) {
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if (camera->projection == CAMERA_PERSPECTIVE)
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{
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return MatrixPerspective(camera->fovy * DEG2RAD, aspect, CAMERA_CULL_DISTANCE_NEAR, CAMERA_CULL_DISTANCE_FAR);
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}
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else if (camera->projection == CAMERA_ORTHOGRAPHIC)
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{
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double top = camera->fovy / 2.0;
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double right = top * aspect;
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return MatrixOrtho(-right, right, -top, top, CAMERA_CULL_DISTANCE_NEAR, CAMERA_CULL_DISTANCE_FAR);
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}
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return MatrixIdentity();
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}
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static bool on_init = true;
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void UpdateCamera(Camera3D* camera) {
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// TODO review
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const float CAMERA_MOVE_SPEED = 0.03f;
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// TODO Input detection is raylib-dependant
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// Avoid inital mouse "jump"
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if (on_init) {
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SetMousePosition(0, 0);
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on_init = false;
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}
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Vector2 mousePositionDelta = GetMouseDelta();
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float mouseWheelMove = GetMouseWheelMove();
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// Keys input detection
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// TODO: Input detection is raylib-dependant, it could be moved outside the module
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bool keyPan = IsMouseButtonDown(CAMERA.panControl);
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bool keyAlt = IsKeyDown(CAMERA.altControl);
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bool szoomKey = IsKeyDown(CAMERA.smoothZoomControl);
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bool direction[6] = { IsKeyDown(CAMERA.moveControl[MOVE_FRONT]),
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IsKeyDown(CAMERA.moveControl[MOVE_BACK]),
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IsKeyDown(CAMERA.moveControl[MOVE_RIGHT]),
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IsKeyDown(CAMERA.moveControl[MOVE_LEFT]),
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IsKeyDown(CAMERA.moveControl[MOVE_UP]),
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IsKeyDown(CAMERA.moveControl[MOVE_DOWN]) };
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// Camera movement
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if (IsKeyDown(KEY_W)) CameraMoveForward(camera, CAMERA_MOVE_SPEED * 3);
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if (IsKeyDown(KEY_S)) CameraMoveForward(camera, -CAMERA_MOVE_SPEED * 3);
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if (IsKeyDown(KEY_D)) CameraMoveRight(camera, CAMERA_MOVE_SPEED * 3);
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if (IsKeyDown(KEY_A)) CameraMoveRight(camera, -CAMERA_MOVE_SPEED * 3);
|
||||
if (IsKeyDown(KEY_SPACE)) CameraMoveUp(camera, CAMERA_MOVE_SPEED * 3);
|
||||
if (IsKeyDown(KEY_LEFT_CONTROL)) CameraMoveUp(camera, -CAMERA_MOVE_SPEED * 3);
|
||||
|
||||
// Support for multiple automatic camera modes
|
||||
// NOTE: In case of CAMERA_CUSTOM nothing happens here, user must update it manually
|
||||
switch (CAMERA.mode)
|
||||
{
|
||||
case CAMERA_FREE: // Camera free controls, using standard 3d-content-creation scheme
|
||||
{
|
||||
// Camera zoom
|
||||
if ((CAMERA.targetDistance < CAMERA_FREE_DISTANCE_MAX_CLAMP) && (mouseWheelMove < 0))
|
||||
{
|
||||
CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY);
|
||||
if (CAMERA.targetDistance > CAMERA_FREE_DISTANCE_MAX_CLAMP) CAMERA.targetDistance = CAMERA_FREE_DISTANCE_MAX_CLAMP;
|
||||
}
|
||||
|
||||
// Camera looking down
|
||||
else if ((camera->position.y > camera->target.y) && (CAMERA.targetDistance == CAMERA_FREE_DISTANCE_MAX_CLAMP) && (mouseWheelMove < 0))
|
||||
{
|
||||
camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
}
|
||||
else if ((camera->position.y > camera->target.y) && (camera->target.y >= 0))
|
||||
{
|
||||
camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
|
||||
// if (camera->target.y < 0) camera->target.y = -0.001;
|
||||
}
|
||||
else if ((camera->position.y > camera->target.y) && (camera->target.y < 0) && (mouseWheelMove > 0))
|
||||
{
|
||||
CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY);
|
||||
if (CAMERA.targetDistance < CAMERA_FREE_DISTANCE_MIN_CLAMP) CAMERA.targetDistance = CAMERA_FREE_DISTANCE_MIN_CLAMP;
|
||||
}
|
||||
// Camera looking up
|
||||
else if ((camera->position.y < camera->target.y) && (CAMERA.targetDistance == CAMERA_FREE_DISTANCE_MAX_CLAMP) && (mouseWheelMove < 0))
|
||||
{
|
||||
camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
}
|
||||
else if ((camera->position.y < camera->target.y) && (camera->target.y <= 0))
|
||||
{
|
||||
camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance;
|
||||
|
||||
// if (camera->target.y > 0) camera->target.y = 0.001;
|
||||
}
|
||||
else if ((camera->position.y < camera->target.y) && (camera->target.y > 0) && (mouseWheelMove > 0))
|
||||
{
|
||||
CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY);
|
||||
if (CAMERA.targetDistance < CAMERA_FREE_DISTANCE_MIN_CLAMP) CAMERA.targetDistance = CAMERA_FREE_DISTANCE_MIN_CLAMP;
|
||||
}
|
||||
|
||||
// Input keys checks
|
||||
if (keyPan)
|
||||
{
|
||||
if (keyAlt) // Alternative key behaviour
|
||||
{
|
||||
if (szoomKey)
|
||||
{
|
||||
// Camera smooth zoom
|
||||
CAMERA.targetDistance += (mousePositionDelta.y*CAMERA_FREE_SMOOTH_ZOOM_SENSITIVITY);
|
||||
}
|
||||
else
|
||||
{
|
||||
// Camera rotation
|
||||
CAMERA.angle.x += mousePositionDelta.x*-CAMERA_FREE_MOUSE_SENSITIVITY;
|
||||
CAMERA.angle.y += mousePositionDelta.y*-CAMERA_FREE_MOUSE_SENSITIVITY;
|
||||
if (IsKeyDown(KEY_DOWN)) CameraPitch(camera, -CAMERA_MOVE_SPEED);
|
||||
if (IsKeyDown(KEY_UP)) CameraPitch(camera, CAMERA_MOVE_SPEED);
|
||||
if (IsKeyDown(KEY_RIGHT)) CameraYaw(camera, -CAMERA_MOVE_SPEED);
|
||||
if (IsKeyDown(KEY_LEFT)) CameraYaw(camera, CAMERA_MOVE_SPEED);
|
||||
if (IsKeyDown(KEY_Q)) CameraRoll(camera, -CAMERA_MOVE_SPEED);
|
||||
if (IsKeyDown(KEY_E)) CameraRoll(camera, CAMERA_MOVE_SPEED);
|
||||
|
||||
// Angle clamp
|
||||
if (CAMERA.angle.y > CAMERA_FREE_MIN_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_FREE_MIN_CLAMP*DEG2RAD;
|
||||
else if (CAMERA.angle.y < CAMERA_FREE_MAX_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_FREE_MAX_CLAMP*DEG2RAD;
|
||||
|
||||
CameraYaw(camera, mousePositionDelta.x * -CAMERA_MOUSE_MOVE_SENSITIVITY);
|
||||
CameraPitch(camera, mousePositionDelta.y * -CAMERA_MOUSE_MOVE_SENSITIVITY);
|
||||
|
||||
#if 0
|
||||
|
||||
// Adjust camera target_distance
|
||||
camera->target_distance -= GetMouseWheelMove();
|
||||
if (IsKeyPressed(KEY_KP_SUBTRACT)) camera->target_distance -= 1.0f;
|
||||
if (IsKeyPressed(KEY_KP_ADD)) camera->target_distance += 1.0f;
|
||||
|
||||
|
||||
// Switch camera mode
|
||||
if (IsKeyPressed(KEY_ONE)) SetCameraMode(camera, CAMERA_FREE);
|
||||
if (IsKeyPressed(KEY_TWO)) SetCameraMode(camera, CAMERA_FIRST_PERSON);
|
||||
if (IsKeyPressed(KEY_THREE)) SetCameraMode(camera, CAMERA_THIRD_PERSON);
|
||||
if (IsKeyPressed(KEY_FOUR)) SetCameraMode(camera, CAMERA_ORBITAL);
|
||||
|
||||
// Switch camera projection
|
||||
if (IsKeyPressed(KEY_P)) {
|
||||
if (camera->projection == CAMERA_PERSPECTIVE) {
|
||||
// Create isometric view
|
||||
InitializeCamera(camera, camera->aspect);
|
||||
camera->mode = CAMERA_THIRD_PERSON;
|
||||
camera->projection = CAMERA_ORTHOGRAPHIC;
|
||||
camera->fovy = 20.0f; // near plane width in orthografic
|
||||
camera->target_distance = 100.0f; // influences only clip distance
|
||||
CameraYaw(camera, -135 * DEG2RAD);
|
||||
CameraPitch(camera, 45 * DEG2RAD);
|
||||
}
|
||||
else if (camera->projection == CAMERA_ORTHOGRAPHIC) {
|
||||
// Reset default view
|
||||
InitializeCamera(camera, camera->aspect);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// Camera panning
|
||||
camera->target.x += ((mousePositionDelta.x*CAMERA_FREE_MOUSE_SENSITIVITY)*cosf(CAMERA.angle.x) + (mousePositionDelta.y*-CAMERA_FREE_MOUSE_SENSITIVITY)*sinf(CAMERA.angle.x)*sinf(CAMERA.angle.y))*(CAMERA.targetDistance/CAMERA_FREE_PANNING_DIVIDER);
|
||||
camera->target.y += ((mousePositionDelta.y*CAMERA_FREE_MOUSE_SENSITIVITY)*cosf(CAMERA.angle.y))*(CAMERA.targetDistance/CAMERA_FREE_PANNING_DIVIDER);
|
||||
camera->target.z += ((mousePositionDelta.x*-CAMERA_FREE_MOUSE_SENSITIVITY)*sinf(CAMERA.angle.x) + (mousePositionDelta.y*-CAMERA_FREE_MOUSE_SENSITIVITY)*cosf(CAMERA.angle.x)*sinf(CAMERA.angle.y))*(CAMERA.targetDistance/CAMERA_FREE_PANNING_DIVIDER);
|
||||
}
|
||||
#endif
|
||||
|
||||
}
|
||||
|
||||
// Update camera position with changes
|
||||
camera->position.x = -sinf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.x;
|
||||
camera->position.y = -sinf(CAMERA.angle.y)*CAMERA.targetDistance + camera->target.y;
|
||||
camera->position.z = -cosf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.z;
|
||||
|
||||
} break;
|
||||
case CAMERA_ORBITAL: // Camera just orbits around target, only zoom allowed
|
||||
{
|
||||
CAMERA.angle.x += CAMERA_ORBITAL_SPEED*GetFrameTime(); // Camera orbit angle
|
||||
CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY); // Camera zoom
|
||||
|
||||
// Camera distance clamp
|
||||
if (CAMERA.targetDistance < CAMERA_THIRD_PERSON_DISTANCE_CLAMP) CAMERA.targetDistance = CAMERA_THIRD_PERSON_DISTANCE_CLAMP;
|
||||
|
||||
// Update camera position with changes
|
||||
camera->position.x = sinf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.x;
|
||||
camera->position.y = ((CAMERA.angle.y <= 0.0f)? 1 : -1)*sinf(CAMERA.angle.y)*CAMERA.targetDistance*sinf(CAMERA.angle.y) + camera->target.y;
|
||||
camera->position.z = cosf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.z;
|
||||
|
||||
} break;
|
||||
case CAMERA_FIRST_PERSON: // Camera moves as in a first-person game, controls are configurable
|
||||
{
|
||||
camera->position.x += (sinf(CAMERA.angle.x)*direction[MOVE_BACK] -
|
||||
sinf(CAMERA.angle.x)*direction[MOVE_FRONT] -
|
||||
cosf(CAMERA.angle.x)*direction[MOVE_LEFT] +
|
||||
cosf(CAMERA.angle.x)*direction[MOVE_RIGHT])*PLAYER_MOVEMENT_SENSITIVITY*GetFrameTime();
|
||||
|
||||
camera->position.y += (sinf(CAMERA.angle.y)*direction[MOVE_FRONT] -
|
||||
sinf(CAMERA.angle.y)*direction[MOVE_BACK] +
|
||||
1.0f*direction[MOVE_UP] - 1.0f*direction[MOVE_DOWN])*PLAYER_MOVEMENT_SENSITIVITY*GetFrameTime();
|
||||
|
||||
camera->position.z += (cosf(CAMERA.angle.x)*direction[MOVE_BACK] -
|
||||
cosf(CAMERA.angle.x)*direction[MOVE_FRONT] +
|
||||
sinf(CAMERA.angle.x)*direction[MOVE_LEFT] -
|
||||
sinf(CAMERA.angle.x)*direction[MOVE_RIGHT])*PLAYER_MOVEMENT_SENSITIVITY*GetFrameTime();
|
||||
|
||||
// Camera orientation calculation
|
||||
CAMERA.angle.x -= mousePositionDelta.x*CAMERA_MOUSE_MOVE_SENSITIVITY*GetFrameTime();
|
||||
CAMERA.angle.y -= mousePositionDelta.y*CAMERA_MOUSE_MOVE_SENSITIVITY*GetFrameTime();
|
||||
|
||||
// Angle clamp
|
||||
if (CAMERA.angle.y > CAMERA_FIRST_PERSON_MIN_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_FIRST_PERSON_MIN_CLAMP*DEG2RAD;
|
||||
else if (CAMERA.angle.y < CAMERA_FIRST_PERSON_MAX_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_FIRST_PERSON_MAX_CLAMP*DEG2RAD;
|
||||
|
||||
// Calculate translation matrix
|
||||
Matrix matTranslation = { 1.0f, 0.0f, 0.0f, 0.0f,
|
||||
0.0f, 1.0f, 0.0f, 0.0f,
|
||||
0.0f, 0.0f, 1.0f, (CAMERA.targetDistance/CAMERA_FREE_PANNING_DIVIDER),
|
||||
0.0f, 0.0f, 0.0f, 1.0f };
|
||||
|
||||
// Calculate rotation matrix
|
||||
Matrix matRotation = { 1.0f, 0.0f, 0.0f, 0.0f,
|
||||
0.0f, 1.0f, 0.0f, 0.0f,
|
||||
0.0f, 0.0f, 1.0f, 0.0f,
|
||||
0.0f, 0.0f, 0.0f, 1.0f };
|
||||
|
||||
float cosz = cosf(0.0f);
|
||||
float sinz = sinf(0.0f);
|
||||
float cosy = cosf(-(PI*2 - CAMERA.angle.x));
|
||||
float siny = sinf(-(PI*2 - CAMERA.angle.x));
|
||||
float cosx = cosf(-(PI*2 - CAMERA.angle.y));
|
||||
float sinx = sinf(-(PI*2 - CAMERA.angle.y));
|
||||
|
||||
matRotation.m0 = cosz*cosy;
|
||||
matRotation.m4 = (cosz*siny*sinx) - (sinz*cosx);
|
||||
matRotation.m8 = (cosz*siny*cosx) + (sinz*sinx);
|
||||
matRotation.m1 = sinz*cosy;
|
||||
matRotation.m5 = (sinz*siny*sinx) + (cosz*cosx);
|
||||
matRotation.m9 = (sinz*siny*cosx) - (cosz*sinx);
|
||||
matRotation.m2 = -siny;
|
||||
matRotation.m6 = cosy*sinx;
|
||||
matRotation.m10= cosy*cosx;
|
||||
|
||||
// Multiply translation and rotation matrices
|
||||
Matrix matTransform = { 0 };
|
||||
matTransform.m0 = matTranslation.m0*matRotation.m0 + matTranslation.m1*matRotation.m4 + matTranslation.m2*matRotation.m8 + matTranslation.m3*matRotation.m12;
|
||||
matTransform.m1 = matTranslation.m0*matRotation.m1 + matTranslation.m1*matRotation.m5 + matTranslation.m2*matRotation.m9 + matTranslation.m3*matRotation.m13;
|
||||
matTransform.m2 = matTranslation.m0*matRotation.m2 + matTranslation.m1*matRotation.m6 + matTranslation.m2*matRotation.m10 + matTranslation.m3*matRotation.m14;
|
||||
matTransform.m3 = matTranslation.m0*matRotation.m3 + matTranslation.m1*matRotation.m7 + matTranslation.m2*matRotation.m11 + matTranslation.m3*matRotation.m15;
|
||||
matTransform.m4 = matTranslation.m4*matRotation.m0 + matTranslation.m5*matRotation.m4 + matTranslation.m6*matRotation.m8 + matTranslation.m7*matRotation.m12;
|
||||
matTransform.m5 = matTranslation.m4*matRotation.m1 + matTranslation.m5*matRotation.m5 + matTranslation.m6*matRotation.m9 + matTranslation.m7*matRotation.m13;
|
||||
matTransform.m6 = matTranslation.m4*matRotation.m2 + matTranslation.m5*matRotation.m6 + matTranslation.m6*matRotation.m10 + matTranslation.m7*matRotation.m14;
|
||||
matTransform.m7 = matTranslation.m4*matRotation.m3 + matTranslation.m5*matRotation.m7 + matTranslation.m6*matRotation.m11 + matTranslation.m7*matRotation.m15;
|
||||
matTransform.m8 = matTranslation.m8*matRotation.m0 + matTranslation.m9*matRotation.m4 + matTranslation.m10*matRotation.m8 + matTranslation.m11*matRotation.m12;
|
||||
matTransform.m9 = matTranslation.m8*matRotation.m1 + matTranslation.m9*matRotation.m5 + matTranslation.m10*matRotation.m9 + matTranslation.m11*matRotation.m13;
|
||||
matTransform.m10 = matTranslation.m8*matRotation.m2 + matTranslation.m9*matRotation.m6 + matTranslation.m10*matRotation.m10 + matTranslation.m11*matRotation.m14;
|
||||
matTransform.m11 = matTranslation.m8*matRotation.m3 + matTranslation.m9*matRotation.m7 + matTranslation.m10*matRotation.m11 + matTranslation.m11*matRotation.m15;
|
||||
matTransform.m12 = matTranslation.m12*matRotation.m0 + matTranslation.m13*matRotation.m4 + matTranslation.m14*matRotation.m8 + matTranslation.m15*matRotation.m12;
|
||||
matTransform.m13 = matTranslation.m12*matRotation.m1 + matTranslation.m13*matRotation.m5 + matTranslation.m14*matRotation.m9 + matTranslation.m15*matRotation.m13;
|
||||
matTransform.m14 = matTranslation.m12*matRotation.m2 + matTranslation.m13*matRotation.m6 + matTranslation.m14*matRotation.m10 + matTranslation.m15*matRotation.m14;
|
||||
matTransform.m15 = matTranslation.m12*matRotation.m3 + matTranslation.m13*matRotation.m7 + matTranslation.m14*matRotation.m11 + matTranslation.m15*matRotation.m15;
|
||||
|
||||
camera->target.x = camera->position.x - matTransform.m12;
|
||||
camera->target.y = camera->position.y - matTransform.m13;
|
||||
camera->target.z = camera->position.z - matTransform.m14;
|
||||
|
||||
// Camera position update
|
||||
// NOTE: On CAMERA_FIRST_PERSON player Y-movement is limited to player 'eyes position'
|
||||
camera->position.y = CAMERA.playerEyesPosition;
|
||||
|
||||
// Camera swinging (y-movement), only when walking (some key pressed)
|
||||
for (int i = 0; i < 6; i++) if (direction[i]) { swingCounter += GetFrameTime(); break; }
|
||||
camera->position.y -= sinf(2*PI*CAMERA_FIRST_PERSON_STEP_FREQUENCY*swingCounter)*CAMERA_FIRST_PERSON_SWINGING_DELTA;
|
||||
|
||||
// Camera waiving (xz-movement), only when walking (some key pressed)
|
||||
camera->up.x = sinf(2*PI*CAMERA_FIRST_PERSON_STEP_FREQUENCY*swingCounter)*CAMERA_FIRST_PERSON_TILTING_DELTA;
|
||||
camera->up.z = -sinf(2*PI*CAMERA_FIRST_PERSON_STEP_FREQUENCY*swingCounter)*CAMERA_FIRST_PERSON_TILTING_DELTA;
|
||||
|
||||
} break;
|
||||
case CAMERA_THIRD_PERSON: // Camera moves as in a third-person game, following target at a distance, controls are configurable
|
||||
{
|
||||
camera->position.x += (sinf(CAMERA.angle.x)*direction[MOVE_BACK] -
|
||||
sinf(CAMERA.angle.x)*direction[MOVE_FRONT] -
|
||||
cosf(CAMERA.angle.x)*direction[MOVE_LEFT] +
|
||||
cosf(CAMERA.angle.x)*direction[MOVE_RIGHT])*PLAYER_MOVEMENT_SENSITIVITY*GetFrameTime();
|
||||
|
||||
camera->position.y += (sinf(CAMERA.angle.y)*direction[MOVE_FRONT] -
|
||||
sinf(CAMERA.angle.y)*direction[MOVE_BACK] +
|
||||
1.0f*direction[MOVE_UP] - 1.0f*direction[MOVE_DOWN])*PLAYER_MOVEMENT_SENSITIVITY*GetFrameTime();
|
||||
|
||||
camera->position.z += (cosf(CAMERA.angle.x)*direction[MOVE_BACK] -
|
||||
cosf(CAMERA.angle.x)*direction[MOVE_FRONT] +
|
||||
sinf(CAMERA.angle.x)*direction[MOVE_LEFT] -
|
||||
sinf(CAMERA.angle.x)*direction[MOVE_RIGHT])*PLAYER_MOVEMENT_SENSITIVITY*GetFrameTime();
|
||||
|
||||
// Camera orientation calculation
|
||||
CAMERA.angle.x += (mousePositionDelta.x*-CAMERA_MOUSE_MOVE_SENSITIVITY);
|
||||
CAMERA.angle.y += (mousePositionDelta.y*-CAMERA_MOUSE_MOVE_SENSITIVITY);
|
||||
|
||||
// Angle clamp
|
||||
if (CAMERA.angle.y > CAMERA_THIRD_PERSON_MIN_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_THIRD_PERSON_MIN_CLAMP*DEG2RAD;
|
||||
else if (CAMERA.angle.y < CAMERA_THIRD_PERSON_MAX_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_THIRD_PERSON_MAX_CLAMP*DEG2RAD;
|
||||
|
||||
// Camera zoom
|
||||
CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY);
|
||||
|
||||
// Camera distance clamp
|
||||
if (CAMERA.targetDistance < CAMERA_THIRD_PERSON_DISTANCE_CLAMP) CAMERA.targetDistance = CAMERA_THIRD_PERSON_DISTANCE_CLAMP;
|
||||
|
||||
camera->position.x = sinf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.x;
|
||||
|
||||
if (CAMERA.angle.y <= 0.0f) camera->position.y = sinf(CAMERA.angle.y)*CAMERA.targetDistance*sinf(CAMERA.angle.y) + camera->target.y;
|
||||
else camera->position.y = -sinf(CAMERA.angle.y)*CAMERA.targetDistance*sinf(CAMERA.angle.y) + camera->target.y;
|
||||
|
||||
camera->position.z = cosf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.z;
|
||||
|
||||
} break;
|
||||
case CAMERA_CUSTOM: break;
|
||||
default: break;
|
||||
}
|
||||
}
|
||||
// TODO can we provide compatibility with the old rcamera usage?
|
||||
#if 0
|
||||
|
||||
// Set camera pan key to combine with mouse movement (free camera)
|
||||
void SetCameraPanControl(int keyPan) { CAMERA.panControl = keyPan; }
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||||
|
|
@ -554,5 +475,7 @@ void SetCameraMoveControls(int keyFront, int keyBack, int keyRight, int keyLeft,
|
|||
CAMERA.moveControl[MOVE_UP] = keyUp;
|
||||
CAMERA.moveControl[MOVE_DOWN] = keyDown;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#endif // CAMERA_IMPLEMENTATION
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user