Another Game In C ! :D

Another small Project XD. It was less of a headache than the previous one, but oh boy, there's still a LOOONNG way to go, AYE! XD. Next time, I'll try implementing more complicated stuff...XD

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	#include <stdio.h>
	#include <SDL.h>
	#include <SDL_image.h>
	#include <SDL_ttf.h>
	#include <math.h>
	#define RESX 800
	#define RESY 600
	#define FPS_LIMIT 16
	struct Vecc
	{
	int x;
	int y;
	};
	struct Player
	{
	SDL_Rect body;
	float verticalVelocity;
	int jumpcount;
	};
	struct Triangle
	{
	struct Vecc top_vertex;
	struct Vecc left_vertex;
	struct Vecc right_vertex;
	int slant_length;
	};
	struct Player p;
	struct Triangle t;
	int scored = 0;
	int IsRunning = 1;
	int floorY = (RESY/2) -5;
	int TriangleVx = 10;
	int Score = 0;
	long framecount = 1;
	SDL_Color textcolor = {255, 255, 255};
	SDL_Window* window;
	SDL_Renderer* renderer;
	TTF_Font * font;
	void limit_fps(unsigned int limit)
	{
	unsigned int ticks = SDL_GetTicks();
	if(limit < ticks)
	return;
	else if(limit> ticks + FPS_LIMIT)
	SDL_Delay(FPS_LIMIT);
	else
	SDL_Delay(limit - ticks);
	}
	void ExitOnError()
	{
	if( renderer != NULL)
	{
	SDL_DestroyRenderer(renderer);
	printf("Renderer Destroyed");
	}
	if( window != NULL)
	{
	SDL_DestroyWindow(window);
	printf("Window Destroyed");
	}
	TTF_Quit();
	SDL_Quit();
	printf("SDL2 Quit");
	}
	int Initialise_stuff()
	{
	TTF_Init();
	font = TTF_OpenFont("arial.ttf", 25);
	if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
	{
	printf("[DEBUG: SDL2 Failed to initialise]");
	return (-1);
	}
	window = SDL_CreateWindow("test-Jumpey",
	SDL_WINDOWPOS_CENTERED,
	SDL_WINDOWPOS_CENTERED,
	RESX,
	RESY,
	0 );
	if (window == NULL)
	{
	printf("[DEBUG: Window failed to Initialise]");
	return -1;
	}
	renderer = SDL_CreateRenderer(window,-1,SDL_RENDERER_ACCELERATED);
	if (renderer == NULL)
	{
	printf("[DEBUG: Renderer failed to Initialise]");
	return -1;
	}
	t.top_vertex.x = RESX/2;
	t.top_vertex.y = RESY/2;
	t.slant_length = 50;
	p.body.h = 50;
	p.body.w = 50;
	p.body.x = RESX/4;
	p.body.y = (RESY/2) -5;
	p.verticalVelocity = 0;
	return 0;
	}
	void DrawText(char* message , int x, int y)
	{
	int texW = 0;
	int texH = 0;
	SDL_Color color = { 255, 255, 255 };
	SDL_Surface * surface = TTF_RenderText_Solid(font, message, color);
	SDL_Texture * texture = SDL_CreateTextureFromSurface(renderer, surface);
	SDL_QueryTexture(texture, NULL, NULL, &texW, &texH);
	SDL_Rect dstrect = { x, y, texW, texH };
	SDL_RenderCopy(renderer, texture, NULL, &dstrect);
	SDL_DestroyTexture(texture);
	SDL_FreeSurface(surface);
	}
	struct Triangle Draw_Triangle(struct Triangle t)
	{
	int isdrawsuccess = 1;
	int height = (int)(t.slant_length * sin((M_PI/3)));
	int half_base = (int)(t.slant_length * cos((M_PI/3)));
	t.left_vertex.y = t.top_vertex.y + height;
	t.left_vertex.x = t.top_vertex.x - half_base;
	t.right_vertex.y = t.left_vertex.y;
	t.right_vertex.x = t.top_vertex.x + half_base;
	//TODO: Function to change Render Colour.
	if (SDL_SetRenderDrawColor(renderer, 0, 255, 0, 255) != 0)
	{
	printf("[DEBUG: Error when changing Renderer draw Color ...]");
	ExitOnError();
	}
	if (SDL_RenderDrawLine(renderer, t.top_vertex.x, t.top_vertex.y, t.left_vertex.x, t.left_vertex.y) != 0)
	{
	isdrawsuccess = 0;
	}
	if (SDL_RenderDrawLine(renderer, t.top_vertex.x, t.top_vertex.y, t.right_vertex.x, t.right_vertex.y))
	{
	isdrawsuccess = 0;
	}
	if(SDL_RenderDrawLine(renderer, t.right_vertex.x, t.right_vertex.y, t.left_vertex.x, t.left_vertex.y))
	{
	isdrawsuccess = 0;
	}
	if(isdrawsuccess != 1)
	{
	printf("[DEBUG: Error Drawing a line ...]");
	ExitOnError();
	} //else{printf("[DEBUG: ALL 3 Lines drawn] \n");}
	return t;
	}
	void Draw_Player()
	{
	if(SDL_SetRenderDrawColor(renderer, 0, 200, 200, 225) != 0)
	{
	printf("[DEBUG: Error When Changing Renderer's color]");
	ExitOnError();
	}
	if(SDL_RenderDrawRect(renderer, &p.body) != 0)
	{
	printf("[DEBUG: Error When Drawing Player]");
	}
	}
	int handleInput()
	{
	SDL_Event event;
	while (SDL_PollEvent(&event))
	{
	if(event.type == SDL_QUIT)
	{
	printf("[DEBUG: Safely Exiting ...]");
	IsRunning = 0;
	}
	switch(event.type)
	{
	case SDL_KEYDOWN:
	printf("a key has been pressed \n");
	if (event.key.keysym.sym == SDLK_SPACE)
	{
	printf("that key is space \n");
	if(p.jumpcount <= 1)
	{
	p.verticalVelocity = 20;
	p.jumpcount ++;
	}
	}
	}
	}
	}
	int processLogic()
	{
	if(framecount % 100 == 0)
	{
	TriangleVx ++;
	}
	t.top_vertex.x -= TriangleVx;
	if( t.top_vertex.x <= 0)
	{
	t.top_vertex.x = RESX;
	}
	p.body.y -= p.verticalVelocity;
	if (p.body.y >= floorY)
	{
	p.jumpcount = 0;
	p.body.y = floorY;
	p.verticalVelocity = 0;
	scored = 0;
	if ((p.body.x > t.left_vertex.x) && (p.body.x < t.right_vertex.x) )
	{
	Score = 0;
	}
	}
	p.verticalVelocity -= 3;
	if((p.body.y + p.body.h < (t.top_vertex.y)) && (p.body.x > t.left_vertex.x) && (p.body.x < t.right_vertex.x) & scored == 0 )
	{
	Score++;
	scored = 1;
	}
	framecount ++;
	}
	int drawOnScreen()
	{
	char scoretext[16];
	sprintf(scoretext, "%d", Score);
	if (SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0) != 0)
	{
	printf("[DEBUG: Error when changing Renderer draw Color ...]");
	ExitOnError();
	}
	SDL_RenderClear(renderer);
	DrawText(scoretext, RESX/2, RESY/4);
	t = Draw_Triangle(t);
	Draw_Player();
	SDL_RenderPresent(renderer);
	//SDL_RenderClear(renderer);
	}
	int main(int argc, char** argv)
	{
	unsigned int frame_limit = 0;
	int feedback = 0;
	feedback = Initialise_stuff();
	if (feedback < 0 )
	{
	printf("[DEBUG: Exiting on Error...]");
	ExitOnError();
	}
	frame_limit = SDL_GetTicks() + FPS_LIMIT;
	while(IsRunning == 1)
	{
	limit_fps(frame_limit);
	handleInput();
	processLogic();
	drawOnScreen();
	frame_limit = SDL_GetTicks() + FPS_LIMIT;
	}
	//closing...
	ExitOnError();
	return 0;
	}

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