archeus/src/math/rectangle.c

#include "arc/math/rectangle.h"

//VERY TEMP
// #include <SDL.h>

void ARC_Rect_CenterOn(ARC_Rect *rect, ARC_Rect *bounds){
    rect->x = ((bounds->x + bounds->w) / 2) - (rect->w / 2);
    rect->y = ((bounds->y + bounds->h) / 2) - (rect->h / 2);
}

void ARC_FRect_CenterOn(ARC_FRect *rect, ARC_FRect *bounds){
    rect->x = ((bounds->x + bounds->w) / 2.0f) - (rect->w / 2.0f);
    rect->y = ((bounds->y + bounds->h) / 2.0f) - (rect->h / 2.0f);
}

ARC_Rect ARC_FRect_CastToRect(ARC_FRect *rect){
    return (ARC_Rect){
        .x = (int32_t)rect->x,
        .y = (int32_t)rect->y,
        .w = (int32_t)rect->w,
        .h = (int32_t)rect->h,
    };
}

int32_t ARC_Rect_Intersects(ARC_Rect *rect1, ARC_Rect *rect2){
    if(rect1->x <= rect2->x + rect2->w && rect1->x + rect1->w >= rect2->x &&
       rect1->y <= rect2->y + rect2->h && rect1->y + rect1->h >= rect2->y){
        return 1;
    }
    return 0;
}

int32_t ARC_Rect_LineIntersects(ARC_Rect *rect, int32_t *x1, int32_t *y1, int32_t *x2, int32_t *y2){
    //TODO: Replace soon
    // return SDL_IntersectRectAndLine((SDL_Rect *) rect, x1, y1, x2, y2);
    return 1;
}