mirror of
https://github.com/krislamo/Trololo
synced 2024-12-16 10:40:36 +00:00
Broken with an error in the default argument given for parameter 5 of scrnfunk::apply_image in the core source
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202
core.cpp
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202
core.cpp
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#include "main.h"
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namespace scrnfunk
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{
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// Optimize image on load to reduce processing.
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SDL_Surface *load_image(const char *file)
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{
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SDL_Surface *image_format;
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SDL_Surface *screen_format;
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// Load image
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image_format = IMG_Load(file);
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/*
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DOES THE FILE EVEN EXIST?
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*/
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if(image_format != 0)
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{
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// Optimize
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screen_format = SDL_DisplayFormat(image_format);
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// Release old image
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SDL_FreeSurface(image_format);
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}
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return screen_format;
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}
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void apply_image(int x, int y, SDL_Surface* source, SDL_Surface* destination, SDL_Rect* clip = 0)
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{
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SDL_Rect pos;
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pos.x = x;
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pos.y = y;
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SDL_BlitSurface(source, clip, destination, &pos);
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}
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// Removes color from an image.
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bool RemoveColor(SDL_Surface* image, Uint8 R, Uint8 G, Uint8 B)
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{
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int result;
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// Map color on the image
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Uint32 color = SDL_MapRGB(image->format, R, G, B);
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// Remove color from the image.
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result = SDL_SetColorKey(image, SDL_SRCCOLORKEY, color);
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if(!result)
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return true;
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else
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return false;
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}
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}
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namespace scrns
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{
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// Returns 1 (true) on success, 0 (false) on error.
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bool initiateSDL(SDL_Surface *screen, int x, int y)
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{
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SDL_Surface *vid_init;
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int init, ttf_ret;
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// Initiate SDL and check
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init = SDL_Init(SDL_INIT_VIDEO);
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if(init < 0)
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{
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fprintf(stderr, "Unable to initiate SDL: %s\n", SDL_GetError());
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return false;
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}
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// Set video and check
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vid_init = SDL_SetVideoMode(x, y, 32, SDL_SWSURFACE);
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if(vid_init == 0)
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{
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fprintf(stderr, "Video initialization failed: %s", SDL_GetError());
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return false;
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}
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// Get video surface and check
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screen = SDL_GetVideoSurface();
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if(screen == 0)
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{
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fprintf(stderr, "Failed to get video surface: %s", SDL_GetError());
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return false;
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}
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// Set window title
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SDL_WM_SetCaption(WINDOW_TITLE, 0);
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// Initialize SDL_ttf and check
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ttf_ret = TTF_Init();
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if(ttf_ret == -1)
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{
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fprintf(stderr, "True Type Font initialization failed: %s", SDL_GetError());
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return false;
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}
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// Success: return video surface
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return true;
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}
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SDL_Surface * MainMenu()
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{
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// Screen
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SDL_Surface *screen = 0;
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SDL_Surface *background = 0;
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SDL_Surface *characters = 0;
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SDL_Surface *message = 0;
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// Image filenames
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const char *background_image = "stage1.bmp";
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const char *characters_image = "characters.bmp";
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// Char
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SDL_Rect clip[2];
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initiateSDL(screen, 900, 675);
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if(screen == 0)
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{
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fprintf(stderr, "Start up failure.\n");
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return NULL;
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}
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else
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{
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// Load images
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background = scrnfunk::load_image(background_image);
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characters = scrnfunk::load_image(characters_image);
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// The troll's coordinates
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clip[0].x = 0;
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clip[0].y = 0;
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clip[0].w = 200;
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clip[0].h = 160;
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// The codfish's coordinates
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clip[1].x = 0;
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clip[1].y = 160;
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clip[1].w = 200;
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clip[1].h = 100;
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// Remove the background from the characters
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scrnfunk::RemoveColor(characters, 0x00, 0xFF, 0x00); // Green
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// Blit background image
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scrnfunk::apply_image(0, 0, background, screen);
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// Blit troll image
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scrnfunk::apply_image(700, 40, characters, screen, &clip[0]);
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// Blit codfish image
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scrnfunk::apply_image(150, 300, characters, screen, &clip[1]);
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// Setup welcome text
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SDL_Color whitecolor = { 255, 255, 255 };
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TTF_Font *font = TTF_OpenFont("CaviarDreams.ttf", 80);
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const char* text = "Welcome to Trololo";
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if(!font)
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{
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fprintf(stderr, "TTF_OpenFont: %s\n", TTF_GetError());
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}
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/*
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Checks if font or text is 0 due to the documentation:
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0 font into this function will cause a segfault.
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0 text into this function will result in undefined behavior.
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*/
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if(font != 0 && text != 0)
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message = TTF_RenderText_Solid(font, text, whitecolor);
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else
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fprintf(stderr, "TFF Render Text Solid Error: init error\n");
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// Apply message
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if(message != 0)
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scrnfunk::apply_image(100, 200, message, screen);
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else
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fprintf(stderr, "TFF Render Text Solid Error: apply error\n");
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if(screen != 0)
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SDL_Flip(screen);
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else
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fprintf(stderr, "Couldn't update screen.\n");
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}
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return screen;
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}
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}
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118
main.cpp
118
main.cpp
@ -1,114 +1,24 @@
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// SDL + Extensions
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#include "SDL/SDL.h"
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#include "SDL/SDL_image.h"
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#include "SDL/SDL_ttf.h"
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// Common SDL functions for general processing.
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#include "commonSDL.h"
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#define WINDOW_TITLE "Trololo"
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// Screen
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SDL_Surface *screen = NULL;
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SDL_Surface *background = NULL;
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SDL_Surface *characters = NULL;
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SDL_Surface *message = NULL;
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// Image filenames
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const char *background_image = "stage1.bmp";
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const char *characters_image = "characters.bmp";
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// Char
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SDL_Rect clip[2];
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#include "main.h"
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int main(int argc, char* args[])
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{
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screen = StartUp(WINDOW_TITLE, 900, 675);
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SDL_Event event;
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int quit = 1;
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if(screen == NULL)
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SDL_Surface *screen;
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screen = scrns::MainMenu();
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// Check if user quit
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while(quit == 1)
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{
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fprintf(stderr, "Start up failure.\n");
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return 1;
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}
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else
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{
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// Load images
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background = load_image(background_image);
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characters = load_image(characters_image);
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// The troll's coordinates
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clip[0].x = 0;
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clip[0].y = 0;
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clip[0].w = 200;
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clip[0].h = 160;
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// The codfish's coordinates
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clip[1].x = 0;
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clip[1].y = 160;
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clip[1].w = 200;
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clip[1].h = 100;
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// Remove the background from the characters
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RemoveColor(characters, 0x00, 0xFF, 0x00); // Green
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// Blit background image
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apply_image(0, 0, background, screen);
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// Blit troll image
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apply_image(700, 40, characters, screen, &clip[0]);
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// Blit codfish image
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apply_image(150, 300, characters, screen, &clip[1]);
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// Setup welcome text
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SDL_Color whitecolor = { 255, 255, 255 };
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TTF_Font *font = TTF_OpenFont("CaviarDreams.ttf", 80);
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const char* text = "Welcome to Trololo";
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if(!font)
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while(SDL_PollEvent(&event))
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{
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fprintf(stderr, "TTF_OpenFont: %s\n", TTF_GetError());
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if(event.type == SDL_QUIT)
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quit = 0;
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}
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/*
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Checks if font or text is NULL due to the documentation:
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NULL font into this function will cause a segfault.
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NULL text into this function will result in undefined behavior.
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*/
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if(font != NULL && text != NULL)
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message = TTF_RenderText_Solid(font, text, whitecolor);
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else
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fprintf(stderr, "TFF Render Text Solid Error: init error\n");
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// Apply message
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if(message != NULL)
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apply_image(100, 200, message, screen);
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else
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fprintf(stderr, "TFF Render Text Solid Error: apply error\n");
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if(screen != NULL)
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SDL_Flip(screen);
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else
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fprintf(stderr, "Couldn't update screen.\n");
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SDL_Event event;
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int quit = 1;
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// Check if user quit
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while(quit == 1)
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{
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while(SDL_PollEvent(&event))
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{
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if(event.type == SDL_QUIT)
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quit = 0;
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}
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}
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return 0;
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}
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return 0;
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}
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28
main.h
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28
main.h
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#ifndef MAIN_H
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#define MAIN_H
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// SDL dependencies
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#include "SDL/SDL.h" // SDL 1.2.15 (32 bit)
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#include "SDL/SDL_image.h" // SDL_image (1.2.12)
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#include "SDL/SDL_ttf.h" // SDL_tff (2.0.11)
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// Standard dependencies
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#include <cstdio>
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namespace scrns
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{
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bool initiateSDL(SDL_Surface *screen, int x, int y);
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SDL_Surface * MainMenu();
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}
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namespace scrnfunk
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{
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SDL_Surface *load_image(const char *file);
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void apply_image(int x, int y, SDL_Surface* source, SDL_Surface* destination, SDL_Rect* clip = 0);
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bool RemoveColor(SDL_Surface* image, Uint8 R, Uint8 G, Uint8);
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}
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#define VERSION 0.1-alpha
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#define WINDOW_TITLE "Trololo"
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#endif
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