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@@ -16,7 +16,8 @@
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********************************************************************************************/
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#include "raylib.h"
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-#include "raymath.h" // For Lerp
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+
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+#include "raymath.h" // Required for: Lerp()
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//------------------------------------------------------------------------------------
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// Program main entry point
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@@ -38,35 +39,35 @@ int main(void)
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.zoom = 1
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};
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- // Loading file from resources/text_file.txt
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+ // Loading text file from resources/text_file.txt
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const char *fileName = "resources/text_file.txt";
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- char *fileData = LoadFileText(fileName);
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+ char *text = LoadFileText(fileName);
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- // Loading all the lines
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+ // Loading all the text lines
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int lineCount = 0;
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- char **lines = LoadTextLines(fileData, &lineCount);
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+ char **lines = LoadTextLines(text, &lineCount);
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- // Just sylistic choise
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+ // Stylistic choises
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int fontSize = 20;
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- int textTop = 25 + fontSize; // Top of the screen from where the text is rendered
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+ int textTop = 25 + fontSize; // Top of the screen from where the text is rendered
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int wrapWidth = screenWidth - 20;
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// Wrap the lines as needed
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- for(int i = 0; i < lineCount; i++)
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+ for (int i = 0; i < lineCount; i++)
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{
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int j = 0;
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int lastSpace = 0; // Keeping track of last valid space to insert '\n'
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int lastWrapStart = 0; // Keeping track of the start of this wrapped line.
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- while(lines[i][j] != '\0')
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+ while (lines[i][j] != '\0')
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{
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- if(lines[i][j] == ' ')
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+ if (lines[i][j] == ' ')
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{
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// Making a C Style string by adding a '\0' at the required location so that we can use the MeasureText function
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lines[i][j] = '\0';
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// Checking if the text has crossed the wrapWidth, then going back and inserting a newline
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- if(MeasureText(lines[i] + lastWrapStart, fontSize) > wrapWidth)
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+ if (MeasureText(lines[i] + lastWrapStart, fontSize) > wrapWidth)
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{
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lines[i][lastSpace] = '\n';
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@@ -85,7 +86,7 @@ int main(void)
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// Calculating the total height so that we can show a scrollbar
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int textHeight = 0;
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- for(int i = 0; i < lineCount; i++)
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+ for (int i = 0; i < lineCount; i++)
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{
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Vector2 size = MeasureTextEx(GetFontDefault(), lines[i], fontSize, 2);
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textHeight += size.y + 10;
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@@ -96,10 +97,9 @@ int main(void)
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.x = screenWidth - 5,
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.y = 0,
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.width = 5,
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- .height = screenHeight * 100 / (textHeight - screenHeight) // Scrollbar height is just a percentage
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+ .height = screenHeight*100/(textHeight - screenHeight) // Scrollbar height is just a percentage
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};
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-
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SetTargetFPS(60);
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//--------------------------------------------------------------------------------------
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@@ -109,16 +109,17 @@ int main(void)
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// Update
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//----------------------------------------------------------------------------------
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float scroll = GetMouseWheelMove();
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- cam.target.y -= scroll * fontSize * 1.5; // Choosing an arbitrary speed for scroll
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-
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- if(cam.target.y < 0) // Snapping to 0 if we go too far back
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- cam.target.y = 0;
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+ cam.target.y -= scroll*fontSize*1.5f; // Choosing an arbitrary speed for scroll
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- if(cam.target.y > textHeight - screenHeight + textTop) // Ensuring that the camera does not scroll past all text
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+ if (cam.target.y < 0) cam.target.y = 0; // Snapping to 0 if we go too far back
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+
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+ // Ensuring that the camera does not scroll past all text
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+ if (cam.target.y > textHeight - screenHeight + textTop)
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cam.target.y = textHeight - screenHeight + textTop;
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- // Computing the position of the scrollBar depending on the percentage of text covered.
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- scrollBar.y = Lerp(textTop, screenHeight - scrollBar.height, (cam.target.y - textTop) / (textHeight - screenHeight));
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+ // Computing the position of the scrollBar depending on the percentage of text covered
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+ scrollBar.y = Lerp(textTop, screenHeight - scrollBar.height, (cam.target.y - textTop)/(textHeight - screenHeight));
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+ //----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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@@ -127,17 +128,16 @@ int main(void)
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ClearBackground(RAYWHITE);
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BeginMode2D(cam);
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-
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- Font defaultFont = GetFontDefault();
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-
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// Going through all the read lines
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- for(int i = 0, t = textTop; i < lineCount; i++)
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+ for (int i = 0, t = textTop; i < lineCount; i++)
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{
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// Each time we go through and calculate the height of the text to move the cursor appropriately
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- Vector2 size = MeasureTextEx(defaultFont, lines[i], fontSize, 2);
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+ Vector2 size = MeasureTextEx(GetFontDefault(), lines[i], fontSize, 2);
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+
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DrawText(lines[i], 10, t, fontSize, RED);
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- // Inserting extra space for real newlines, wrapped lines are rendered closer together
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+ // Inserting extra space for real newlines,
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+ // wrapped lines are rendered closer together
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t += size.y + 10;
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}
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EndMode2D();
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@@ -155,7 +155,7 @@ int main(void)
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// De-Initialization
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//--------------------------------------------------------------------------------------
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UnloadTextLines(lines, lineCount);
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- UnloadFileText(fileData);
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+ UnloadFileText(text);
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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