TapestryEngine

A 2D Platformer Game Engine
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a94ff71fe029d9b5e3f73f615c2837ba2bef4114.svn-base (3921B)

      1 #include"Utils.h"
      2 #include"Console.h"
      3 #include "MiscDraw.h"
      4 
      5 SDL_Rect GetScreenPos(Actor& act, Camera cam)
      6 {
      7 	SDL_Rect ScreenPos;
      8 	ScreenPos.h = (int)floor((float)(act.GetDrawHeight()) * ((float)(SCREEN_H) / (float)(cam.GetCamView()->h)));
      9 	ScreenPos.w = (int)floor((float)(act.GetDrawWidth())  * ((float)(SCREEN_W) / (float)(cam.GetCamView()->w)));
     10 
     11 	ScreenPos.x = (int)floor((float)(act.GetDrawX() + act.GetX() - cam.GetCamX())*((float)(SCREEN_W) / (float)(cam.GetCamView()->w)));
     12 	ScreenPos.y = (int)floor((float)(act.GetDrawY() + act.GetY() - cam.GetCamY())*((float)(SCREEN_H) / (float)(cam.GetCamView()->h)));
     13 
     14 	return ScreenPos;
     15 }
     16 
     17 bool DrawParallax(SDL_Renderer* ren, SDL_Texture* img, Camera cam, float scale, int worldH, int worldW)
     18 {
     19 	int imgH;
     20 	int imgW;
     21 	SDL_QueryTexture(img, NULL, NULL, &imgW, &imgH);
     22 
     23 	SDL_Rect clip;
     24 	clip.h = (int)(cam.GetCamView()->h * scale);
     25 	clip.w = (int)(cam.GetCamView()->w * scale);
     26 	clip.x = (int)(cam.GetCamX() / ( (worldW - cam.GetCamView()->w) / ( imgW - (cam.GetCamView()->w)*scale) ));
     27 	clip.y = (int)(cam.GetCamY() / ( (worldH - cam.GetCamView()->h) / ( imgH - (cam.GetCamView()->h)*scale) ));
     28 
     29 //	gCons->ConsPrintf("para bound x: %i - %i\n", clip.x, clip.w + clip.x);
     30 //	gCons->ConsPrintf("para bound y: %i - %i\n", clip.y, clip.h + clip.y);
     31 
     32 	SDL_RenderCopy(ren, img, &clip, NULL);
     33 
     34 	return true;
     35 }
     36 
     37 SDL_Rect DrawActor(SDL_Renderer* ren, Actor& act, Camera cam)
     38 {
     39 	SDL_Rect ScreenPos = GetScreenPos(act, cam);
     40 
     41 	Frame* RenderFrame = act.GetFrame();
     42 
     43 	if (RenderFrame != NULL)
     44 	{
     45 		SDL_RendererFlip flip;
     46 		flip = (SDL_RendererFlip)act.GetDir(); //this is why LEFT and RIGHT have thier specific definitions
     47 		SDL_SetTextureAlphaMod(RenderFrame->FrameSource, act.GetOpacity());
     48 
     49 		SDL_RenderCopyEx(ren, RenderFrame->FrameSource, &(RenderFrame->FrameRect), &ScreenPos, 0, NULL, flip);
     50 		Node** hat_array = act.GetHats()->Dump();
     51 		for (int i = 0; i < act.GetHats()->Size(); i++)
     52 		{
     53 		//	if (((Hat*)( hat_array[i]->GetData() ))->IsEnabled())
     54 		//	{
     55 		//		DrawActor(ren, *(Actor*)(hat_array[i]->GetData()), cam);
     56 		//	}
     57 		}
     58 	}
     59 	else
     60 	{
     61 		//gCons->ConsPrintf("Actor frame is null\n");
     62 	}
     63 	return ScreenPos;
     64 }
     65 
     66 bool DrawRect(SDL_Renderer* mRen, SDL_Rect WrldPos, Camera& mCam)
     67 {
     68 	SDL_Rect ScreenPos;
     69 	ScreenPos.h = (int)((float)(WrldPos.h)*((float)(SCREEN_H) / (float)(mCam.GetCamView()->h)));
     70 	ScreenPos.w = (int)((float)(WrldPos.w)*((float)(SCREEN_W) / (float)(mCam.GetCamView()->w)));
     71 
     72 	ScreenPos.x = (int)((float)(WrldPos.x - mCam.GetCamX())*((float)(SCREEN_W) / (float)(mCam.GetCamView()->w)));
     73 	ScreenPos.y = (int)((float)(WrldPos.y - mCam.GetCamY())*((float)(SCREEN_H) / (float)(mCam.GetCamView()->h)));
     74 
     75 	SDL_Point pts[5];
     76 	pts[0].x = ScreenPos.x;
     77 	pts[0].y = ScreenPos.y;
     78 	pts[1].x = ScreenPos.x + ScreenPos.w;
     79 	pts[1].y = ScreenPos.y;
     80 	pts[2].x = ScreenPos.x + ScreenPos.w;
     81 	pts[2].y = ScreenPos.y + ScreenPos.h;
     82 	pts[3].x = ScreenPos.x;
     83 	pts[3].y = ScreenPos.y + ScreenPos.h;
     84 	pts[4].x = ScreenPos.x;
     85 	pts[4].y = ScreenPos.y;
     86 
     87 	SDL_RenderDrawLines(mRen, pts, 5);
     88 
     89 	return false;
     90 }
     91 
     92 bool DrawText(SDL_Renderer* ren, TTF_Font* font, char* text, SDL_Color Text_c, SDL_Color Back_c)
     93 {
     94 	const char* error;
     95 
     96 	SDL_Surface* LineSur = TTF_RenderText_Shaded(font, text, Text_c, Back_c);
     97 	if (!LineSur)
     98 	{
     99 		error = SDL_GetError();
    100 	}
    101 
    102 	SDL_SetColorKey(LineSur, SDL_TRUE, SDL_MapRGB(LineSur->format, 0xFF, 0x00, 0xFF));
    103 
    104 	SDL_Texture* LineTex = SDL_CreateTextureFromSurface(ren, LineSur);
    105 	if (!LineTex)
    106 	{
    107 		error = SDL_GetError();
    108 	}
    109 	SDL_FreeSurface(LineSur);
    110 
    111 	SDL_Rect TextRect;
    112 
    113 	if (SDL_QueryTexture(LineTex, NULL, NULL, &TextRect.w, &TextRect.h))
    114 	{
    115 		error = SDL_GetError();
    116 	}
    117 
    118 	SDL_Rect LinePosRect;
    119 
    120 	LinePosRect.w = TextRect.w;
    121 	LinePosRect.h = TextRect.h;
    122 	LinePosRect.x = 0;
    123 	LinePosRect.y = 0;
    124 	//Why comment?
    125 //	if (SDL_RenderCopy(ren, LineTex, &mTextRect, &mLinePosRect))
    126 //	{
    127 //		error = SDL_GetError();
    128 //	}
    129 	SDL_DestroyTexture(LineTex);
    130 
    131 	return false;
    132 }