TapestryEngine

A 2D Platformer Game Engine
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a6d057532f8604ade33918f3a62b14eea99d84fc.svn-base (4428B)

      1 #include "Utils.h"
      2 #include "DiagnosticDraw.h"
      3 #include "Console.h"
      4 
      5 ParticleTypeData NullPTdata()
      6 {
      7 	ParticleTypeData ptData;
      8 	ptData.NoData = true;
      9 	return ptData;
     10 }
     11 
     12 Time* gTime = NULL;
     13 
     14 //int GetTimeF() //measures in frames
     15 //{
     16 //	int time = (clock() / CLOCKS_PER_FRAME);
     17 //	return time;
     18 //}
     19 
     20 int GetRealTimeMS() //measures in milliseconds
     21 {
     22 	int time = (clock() / (CLOCKS_PER_SEC / 1000));
     23 	return time;
     24 }
     25 
     26 SDL_Surface* LoadSurfaceBMP(const char* filename)
     27 {
     28 #ifdef DEBUG
     29 	char* basepath = "C:\\Users\\baptistac1\\Documents\\Visual Studio 2015\\Projects\\TapestryEngineDev\\TapestryEngine\\imgs\\";
     30 #endif
     31 
     32 #ifdef RELEASE
     33 	char* basepath = ".\\imgs\\";
     34 #endif
     35 
     36 	char pathbuffer[1024];
     37 	strcpy(pathbuffer, basepath);
     38 
     39 	SDL_Surface* surface = SDL_LoadBMP(strcat(pathbuffer, filename));
     40 	if (surface == NULL)
     41 	{
     42 		gCons->ConsPrintf("SDL_LoadBMP Error: %s", SDL_GetError());
     43 	}
     44 
     45 	SDL_SetColorKey(surface, SDL_TRUE, SDL_MapRGB(surface->format, 0xFF, 0x00, 0xFF));
     46 
     47 	return surface;
     48 }
     49 
     50 TTF_Font* LoadFont(char* filename, int ptsize)
     51 {
     52 #ifdef DEBUG
     53 	char* basepath = "C:\\Users\\baptistac1\\Documents\\Visual Studio 2015\\Projects\\TapestryEngineDev\\TapestryEngine\\fonts\\";
     54 #endif
     55 
     56 #ifdef RELEASE
     57 	char* basepath = ".\\fonts\\";
     58 #endif
     59 
     60 	char pathbuffer[1024];
     61 	strcpy(pathbuffer, basepath);
     62 	char* fullpath = strcat(pathbuffer, filename);
     63 
     64 	TTF_Font* font = TTF_OpenFont(fullpath, ptsize);
     65 
     66 	assert(font != NULL);
     67 
     68 	return font;
     69 }
     70 cJSON * LoadJSON(const char* filename)
     71 {
     72 #ifdef DEBUG
     73 	char* basepath = "C:\\Users\\baptistac1\\Documents\\Visual Studio 2015\\Projects\\TapestryEngineDev\\TapestryEngine\\json\\";
     74 #endif
     75 
     76 #ifdef RELEASE
     77 	char* basepath = ".\\json\\";
     78 #endif
     79 
     80 	char pathbuffer[1024];
     81 	strcpy(pathbuffer, basepath);
     82 	strcat(pathbuffer, filename);
     83 
     84 	struct stat filestats;
     85 	stat(pathbuffer, &filestats);
     86 
     87 	char* filecontent = (char*)malloc( (filestats.st_size + 1) );
     88 
     89 	FILE* fp;
     90 	fp = fopen(pathbuffer, "rt");
     91 	
     92 	size_t size = fread(filecontent, 1, filestats.st_size, fp);
     93 	fclose(fp);
     94 
     95 	filecontent[size] = 0;
     96 
     97 	//gCons->ConsPrintf("%s\n", filecontent);
     98 
     99 	return cJSON_Parse(filecontent);
    100 }
    101 
    102 void PrintJSON(cJSON* json)
    103 {
    104 	gCons->ConsPrintf(cJSON_Print(json));
    105 }
    106 
    107 float GetSign(float x)
    108 {
    109 	if (x > 0) { return  1; }
    110 	if (x < 0) { return -1; }
    111 	return 0;
    112 }
    113 
    114 bool DetectRectIntersect(SDL_Rect* r1, SDL_Rect* r2)
    115 {
    116 	//if ( ((r1->x <= r2->x) && (r2->x <= (r1->x + r1->w))) || ( (r1->x <= (r2->x + r2->w)) && ((r2->x + r2->w) <= (r1->x + r1->w)) )) //if r1 and r2 intersect in x
    117 
    118 	int r1x1 = r1->x;
    119 	int r1x2 = r1->x + r1->w;
    120 	int r2x1 = r2->x;
    121 	int r2x2 = r2->x + r2->w;
    122 
    123 	int r1y1 = r1->y;
    124 	int r1y2 = r1->y + r1->h;
    125 	int r2y1 = r2->y;
    126 	int r2y2 = r2->y + r2->h;
    127 
    128 	//if (((r1->x <= r2->x) && (r2->x <= (r1->x + r1->w))) || ((r1->x <= (r2->x + r2->w)) && ((r2->x + r2->w) <= (r1->x + r1->w))) || ((r1->x <= r2->x) && (r2->x + r2->w) >= (r1->x + r1->w)) || ( (r1->x >= r2->x)&&( (r1->x + r1->w) >= (r2->x + r2->w) ) ) ) //if r1 and r2 intersect in x
    129 	if
    130 	(
    131 	(r1x1 <= r2x2 && r1x1 >= r2x1) ||
    132 	(r1x2 <= r2x2 && r1x2 >= r2x1) ||
    133 	(r1x1 <= r2x1 && r1x2 >= r2x2)
    134 	)
    135 	{
    136 		if
    137 		(
    138 		(r1y1 <= r2y2 && r1y1 >= r2y1) ||
    139 		(r1y2 <= r2y2 && r1y2 >= r2y1) ||
    140 		(r1y1 <= r2y1 && r1y2 >= r2y2)
    141 		)
    142 		{
    143 			//gCons->ConsPrintf("Rect Intersect Detected!\n");
    144 			return true;
    145 		}
    146 	}
    147 	//gCons->ConsPrintf("No Rect Intersect Detected!\n");
    148 	return false;
    149 }
    150 
    151 bool DetectCenterPointIntersect(SDL_Rect* zone, SDL_Rect* point) //this is a likely culprit
    152 {
    153 	gDiagDraw->LogDiagRect(*point);
    154 	int pointX = point->x + (int)((float)point->w / 2);
    155 	int pointY = point->y + (int)((float)point->h / 2);
    156 	if ( (zone->x <= pointX) && (pointX <= (zone->x + zone->w)) )
    157 	{
    158 		if ((zone->y <= pointY) && (pointY <= (zone->y + zone->h)))
    159 		{
    160 			//gCons->ConsPrintf("Center point intersect detected\n");
    161 			return true;
    162 		}
    163 	}
    164 	//gCons->ConsPrintf("center point not intersecting\n");
    165 	return false;
    166 }
    167 
    168 int CalcDistance(int x1, int y1, int x2, int y2)
    169 {
    170 	int Xdelt = abs(x1 - x2);
    171 	int Ydelt = abs(y1 - y2);
    172 
    173 	return (int)sqrt((Xdelt*Xdelt) + (Ydelt*Ydelt));
    174 }
    175 
    176 int EvenOutcomes(int NumberofOutcomes)
    177 {
    178 	int	i = (rand() % (NumberofOutcomes)) + 1;
    179 	//gCons->ConsPrintf("Roll : %i\n", i);
    180 	return i;
    181 }
    182 
    183 int RandRange(int min, int max)
    184 {
    185 	int	i = (min + (rand() % (max-min)));
    186 	//gCons->ConsPrintf("Range Roll : %i\n", i);
    187 	return i;
    188 }
    189 
    190 
    191 bool IsEven(int i) //Not working alawys return true
    192 {
    193 	if ( (i % 2) == 0)
    194 	{
    195 		return true;
    196 	}
    197 	else
    198 	{
    199 		return false;
    200 	}
    201 }