camera.c File Reference

Game camera system. More...

#include <camera.h>
#include <app.h>
#include <input.h>

Functions
void	Camera_UpdatePosition ()
	[PostUpdate] Updates the camera position based on player position and mouse input
Vec2	Camera_WorldVecToScreen (Vec2 worldPosition)
	[Utility] Converts world coordinates to screen coordinates
Vec2	Camera_ScreenVecToWorld (Vec2 screenPosition)
	[Utility] Converts screen coordinates to world coordinates
SDL_Rect	Camera_ScreenRectToWorld (SDL_Rect screenRect)
	[Utility] Converts a screen rectangle to world coordinates
SDL_Rect	Camera_GetWorldViewRect ()
	[Utility] Gets the current view rectangle in world coordinates
bool	Camera_WorldRectIsOnScreen (SDL_Rect rect)
	[Utility] Checks if a rectangle is visible on screen
bool	Camera_ScreenRectIsOnScreen (SDL_Rect rect)

Variables
CameraSystem	camera

Detailed Description

Game camera system.

Manages the game's camera view, handling player tracking, coordinate transformations between screen and world space, and viewport calculations.

Author

Mango

Date

2025-03-01

Function Documentation

Camera_GetWorldViewRect()

SDL_Rect Camera_GetWorldViewRect

(

)

[Utility] Gets the current view rectangle in world coordinates

Returns

SDL_Rect Rectangle representing the camera's view in world space

Camera_ScreenRectIsOnScreen()

bool Camera_ScreenRectIsOnScreen

(

SDL_Rect

rect

)

Camera_ScreenRectToWorld()

SDL_Rect Camera_ScreenRectToWorld

(

SDL_Rect

screenRect

)

[Utility] Converts a screen rectangle to world coordinates

Parameters

screenRect

Rectangle in screen space

Returns

SDL_Rect Converted rectangle in world space

Camera_ScreenVecToWorld()

Vec2 Camera_ScreenVecToWorld

(

Vec2

screenPosition

)

[Utility] Converts screen coordinates to world coordinates

Parameters

screenPosition

Position in screen space

Returns

Vec2 Converted position in world space

Camera_UpdatePosition()

void Camera_UpdatePosition

(

)

[PostUpdate] Updates the camera position based on player position and mouse input

Camera_WorldRectIsOnScreen()

bool Camera_WorldRectIsOnScreen

(

SDL_Rect

rect

)

[Utility] Checks if a rectangle is visible on screen

Parameters

rect	Rectangle in world coordinates to check

Returns

bool True if the rectangle is at least partially visible, false otherwise

Camera_WorldVecToScreen()

Vec2 Camera_WorldVecToScreen

(

Vec2

worldPosition

)

[Utility] Converts world coordinates to screen coordinates

Parameters

worldPosition

Position in world space

Returns

Vec2 Converted position in screen space

Variable Documentation

camera

CameraSystem camera

Initial value:

= {
    .position = {4200, 4200}
}