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Util: Rect structure

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Valeriano A.R.
2021-10-03 14:18:17 +02:00
parent 354521ec51
commit e63924eb70
2 changed files with 72 additions and 2 deletions
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47
src/Util.c
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@@ -1,4 +1,4 @@
// Copyright (C) 2011 Valeriano Alfonso Rodriguez (Kableado)
// Copyright (C) 2011-2021 Valeriano Alfonso Rodriguez (Kableado)
#include <math.h>
#include <stdio.h>
@@ -8,8 +8,53 @@
#include "Util.h"
/////////////////////////////
// Misc
//
float CosineInterpolation(float f) { return (1.0f - cos(f * Pi)) * 0.5f; }
int MinimumInt(int i0, int i1) {
if (i1 < i0) {
return i1;
}
return i0;
}
int MaximumInt(int i0, int i1) {
if (i1 > i0) {
return i1;
}
return i0;
}
/////////////////////////////
// Rect
//
int Rect_UnionRect(Rect r0, Rect r1, Rect rd) {
rd->x0 = MinimumInt(r0->x0, r1->x0);
rd->y0 = MinimumInt(r0->y0, r1->y0);
rd->x1 = MaximumInt(r0->x1, r1->x1);
rd->y1 = MaximumInt(r0->y1, r1->y1);
}
int Rect_PointInside(Rect r, int x, int y) {
return (x >= r->x0 && x < r->x1 && y >= r->y0 && y < r->y1);
}
int Rect_PointInsideAny(TRect r[], int rCount, int x, int y) {
int insideAny = 0;
int i;
for (i = 0; i < rCount; i++) {
if (Rect_PointInside(&(r[i]), x, y)) {
insideAny = 1;
break;
}
}
return insideAny;
}
/////////////////////////////
// SolveQuadratic
//

27
src/Util.h
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@@ -1,4 +1,4 @@
// Copyright (C) 2011 Valeriano Alfonso Rodriguez (Kableado)
// Copyright (C) 2011-2021 Valeriano Alfonso Rodriguez (Kableado)
#ifndef _UTIL_H_
#define _UTIL_H_
@@ -8,8 +8,32 @@
#define Pi (3.1415925f)
/////////////////////////////
// Misc
//
float CosineInterpolation(float f);
int MinimumInt(int i0, int i1);
int MaximumInt(int i0, int i1);
/////////////////////////////
// Rect
//
typedef struct SRect TRect, *Rect;
struct SRect {
int x0;
int y0;
int x1;
int y1;
};
int Rect_UnionRect(Rect r0, Rect r1, Rect rd);
int Rect_PointInside(Rect r, int x, int y);
int Rect_PointInsideAny(TRect r[], int rCount, int x, int y);
/////////////////////////////
// SolveQuadratic
//
@@ -90,6 +114,7 @@ int EndsWith(char *str, char *suffix);
/////////////////////////////
// Rand
//
void Rand_Seed(unsigned seed);
unsigned Rand_Get();