From 71b4bfa7768c7256de1ecd7098cfd34af3dd4f32 Mon Sep 17 00:00:00 2001
From: Michael <michaef01@zedat.fu-berlin.de>
Date: Thu, 21 Mar 2024 14:15:56 +0100
Subject: [PATCH] added commentary to output.c
---
output.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/output.c b/output.c
index edbcec0..754b652 100644
--- a/output.c
+++ b/output.c
@@ -1,5 +1,7 @@
#include "output.h"
+//V: renderer exists, enum row_type is correct and not renamed, correct y coordinates are transferred
+//N: img corresponding to row_type is set to coordinates: x: 0 to 900 y: y to y+100 and displayed via renderer
int paste_row(SDL_Renderer* renderer, int y, enum row row_type){
SDL_Rect destination = {
@@ -60,7 +62,10 @@ int paste_row(SDL_Renderer* renderer, int y, enum row row_type){
return 0;
}
+//V renderer exists, correct x, y coordinates and width and height and speed and type of car is passed on
+//N: car is set to correct variables and displayed in renderer with correct image and direction
int paste_car(SDL_Renderer* renderer, int x, int y, int width, int height,int speed,enum vehicle type) {
+ //Prevents cars from being displayed at the wrong position
int offset = 20;
if (type == coin){
@@ -73,6 +78,8 @@ int paste_car(SDL_Renderer* renderer, int x, int y, int width, int height,int sp
.w = width,
.h = height};
+ //correct "car" type is displayed
+ //could be implemented like above with switch case
if (type == boat){
if (SDL_RenderCopy(renderer, img_plank, NULL, &rect) != 0) {
SDL_Log("Bild konnte nicht kopiert werden! SDL_Error Error: %s\n",SDL_GetError());
@@ -123,7 +130,9 @@ int paste_car(SDL_Renderer* renderer, int x, int y, int width, int height,int sp
return(0);
}
-
+//used to calculate width of score display
+//V: score exists
+//N: returns int corresponding to digits of score
int func_digits(int score){
if (score == 0)
return(1);
@@ -135,6 +144,8 @@ int func_digits(int score){
return(i);
}
+//V: renderer exists
+//N: current playerhighscore is displayed in white in the upper right corner
int paste_score (SDL_Renderer* renderer) {
int digits = func_digits(playerhighscore);
@@ -157,7 +168,8 @@ int paste_score (SDL_Renderer* renderer) {
return -1;
}
- char output [5];
+ char output [10];
+ //max displayable score has 10 digits
sprintf(output, "%d", playerhighscore);
SDL_Surface* surfaceMessage =
TTF_RenderText_Blended_Wrapped (font, output, (SDL_Color) {225, 225, 225, 255}, 4*200);
--
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