archivemuh

archive/dusksdl2/display/ui/CMakeLists.txt

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+# Copyright (c) 2025 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+# Sources
+target_sources(${DUSK_TARGET_NAME}
+  PRIVATE
+    renderconsole.c
+    renderfps.c
+    rendertext.c
+    renderui.c
+    rendertextbox.c
+)

archive/dusksdl2/display/ui/renderconsole.c

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "renderconsole.h"
+#include "console/console.h"
+#include "display/ui/rendertext.h"
+
+void renderConsoleDraw(void) {
+  if(!CONSOLE.visible) return;
+
+  int32_t i = 0;
+  char_t *line;
+  do {
+    line = CONSOLE.line[i];
+    if(line[0] == '\0') {
+      i++;
+      continue;
+    }
+    renderTextDraw(
+      0, (CONSOLE_HISTORY_MAX - i - 1) * FONT_TILE_HEIGHT, line,
+      0xFF, 0xFF, 0xFF
+    );
+    i++;
+  } while(i < CONSOLE_HISTORY_MAX);
+}

archive/dusksdl2/display/ui/renderconsole.h

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusksdl2.h"
+
+/**
+ * Draws the console overlay.
+ */
+void renderConsoleDraw(void);

archive/dusksdl2/display/ui/renderfps.c

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "renderfps.h"
+#include "display/render.h"
+#include "display/ui/rendertext.h"
+#include "time.h"
+#include "game.h"
+
+float_t RENDER_FPS_AVG = -1.0f;
+float_t RENDER_TPS_AVG = -1.0f;
+
+void renderFPSDraw(void) {
+  
+  if(TIME.delta > 0) {
+    float_t fps = 1.0f / TIME.realDelta;
+
+    if(RENDER_FPS_AVG == -1.0f) {
+      RENDER_FPS_AVG = fps;
+    } else {
+      RENDER_FPS_AVG = (RENDER_FPS_AVG + fps) / 2.0f;
+    }
+  }
+  
+  if(TIME.time != TIME.lastTick) {
+    float_t timeSinceLastTick = TIME.realTime - TIME.lastTick;
+    float_t tps = 1.0f / timeSinceLastTick;
+
+    if(RENDER_TPS_AVG == -1.0f) {
+      RENDER_TPS_AVG = tps;
+    } else {
+      RENDER_TPS_AVG = (RENDER_TPS_AVG + tps) / 2.0f;
+    }
+  }
+
+  char_t buffer[64];
+  snprintf(buffer, sizeof(buffer), "%.1f/%.1f", RENDER_FPS_AVG, RENDER_TPS_AVG);
+
+  int32_t width, height;
+  renderTextMeasure(buffer, &width, &height);
+  renderTextDraw(RENDER_WIDTH - width, 0, buffer, 0x00, 0xFF, 0x00);
+}

archive/dusksdl2/display/ui/renderfps.h

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+
+/**
+ * Draws the FPS overlay.
+ */
+void renderFPSDraw(void);

archive/dusksdl2/display/ui/rendertext.c

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "rendertext.h"
+#include "display/render.h"
+#include "assert/assert.h"
+#include "display/spritebatch/spritebatch.h"
+#include "util/memory.h"
+#include "util/math.h"
+
+texture_t RENDER_TEXT_TEXTURE;
+
+static mesh_t RENDER_TEXT_QUAD_MESH;
+
+void renderTextInit(void) {
+  const int32_t cols = FONT_COLUMN_COUNT;
+  const int32_t rows = (FONT_TILE_COUNT + cols - 1) / cols;
+  const int32_t inputFontWidth  = cols * FONT_TILE_WIDTH;
+  const int32_t inputFontHeight = rows * FONT_TILE_HEIGHT;
+
+  int32_t outputFontWidth = inputFontWidth;
+  int32_t outputFontHeight = inputFontHeight;
+
+  // Round up to nearest power of 2
+  #if PSP
+    outputFontWidth = mathNextPowTwo(inputFontWidth);
+    outputFontHeight = mathNextPowTwo(inputFontHeight);
+  #endif
+
+  uint8_t *pixels = (uint8_t *)memoryAllocate(
+    outputFontWidth * outputFontHeight *
+    sizeof(uint8_t)
+  );
+
+  // Buffer the pixels.
+  for(int tileIndex = 0; tileIndex < FONT_TILE_COUNT; ++tileIndex) {
+    const int32_t tileX = (tileIndex % FONT_COLUMN_COUNT) * FONT_TILE_WIDTH;
+    const int32_t tileY = (tileIndex / FONT_COLUMN_COUNT) * FONT_TILE_HEIGHT;
+    const uint8_t* tile = TILE_PIXEL_DATA[tileIndex];
+
+    for (int y = 0; y < FONT_TILE_HEIGHT; ++y) {
+      for (int x = 0; x < FONT_TILE_WIDTH; ++x) {
+        const int32_t pixel = (tileY + y) * outputFontWidth + (tileX + x);
+        const int32_t pixelOffset = pixel;
+        uint8_t value = tile[y * FONT_TILE_WIDTH + x];
+        pixels[pixel] = value ? 0xFF : 0x00; // Alpha channel
+      }
+    }
+  }
+
+  textureInit(
+    &RENDER_TEXT_TEXTURE,
+    outputFontWidth, outputFontHeight,
+    GL_ALPHA, pixels
+  );
+  memoryFree(pixels);
+}
+
+void renderTextDrawChar(
+  const float_t x,
+  const float_t y,
+  const char_t c,
+  const uint8_t r,
+  const uint8_t g,
+  const uint8_t b
+) {
+  int32_t tileIndex = (int32_t)(c) - FONT_CHAR_START;
+  assertTrue(
+    tileIndex >= 0 && tileIndex < FONT_TILE_COUNT, 
+    "Character is out of bounds for font tiles"
+  );
+
+  const float_t w = (float)RENDER_TEXT_TEXTURE.width;
+  const float_t h = (float)RENDER_TEXT_TEXTURE.height;
+  const int32_t tileX = (tileIndex % FONT_COLUMN_COUNT);
+  const int32_t tileY = (tileIndex / FONT_COLUMN_COUNT);
+
+  spriteBatchPush(
+    &RENDER_TEXT_TEXTURE,
+    x, y,
+    x + FONT_TILE_WIDTH, y + FONT_TILE_HEIGHT,
+    r, g, b, 0xFF,
+    (tileX * FONT_TILE_WIDTH) / w,
+    (tileY * FONT_TILE_HEIGHT) / h,
+    ((tileX + 1) * FONT_TILE_WIDTH) / w,
+    ((tileY + 1) * FONT_TILE_HEIGHT) / h
+  );
+}
+
+void renderTextDraw(
+  const float_t x,
+  const float_t y,
+  const char_t *text,
+  const uint8_t r,
+  const uint8_t g,
+  const uint8_t b
+) {
+  assertNotNull(text, "Text cannot be NULL");
+
+  float_t posX = x;
+  float_t posY = y;
+
+  char_t c;
+  int32_t i = 0;
+  while((c = text[i++]) != '\0') {
+    if(c == '\n') {
+      posX = x;
+      posY += FONT_TILE_HEIGHT;
+      continue;
+    }
+
+    renderTextDrawChar(posX, posY, c, r, g, b);
+    posX += FONT_TILE_WIDTH;
+  }
+}
+
+void renderTextMeasure(
+  const char_t *text,
+  int32_t *outWidth,
+  int32_t *outHeight
+) {
+  assertNotNull(text, "Text cannot be NULL");
+  assertNotNull(outWidth, "Output width pointer cannot be NULL");
+  assertNotNull(outHeight, "Output height pointer cannot be NULL");
+
+  int32_t width = 0;
+  int32_t height = FONT_TILE_HEIGHT;
+  int32_t lineWidth = 0;
+
+  char_t c;
+  int32_t i = 0;
+  while((c = text[i++]) != '\0') {
+    if(c == '\n') {
+      if(lineWidth > width) {
+        width = lineWidth;
+      }
+      lineWidth = 0;
+      height += FONT_TILE_HEIGHT;
+      continue;
+    }
+
+    lineWidth += FONT_TILE_WIDTH;
+  }
+
+  if(lineWidth > width) {
+    width = lineWidth;
+  }
+
+  *outWidth = width;
+  *outHeight = height;
+}
+
+void renderTextDispose(void) {
+  textureDispose(&RENDER_TEXT_TEXTURE);
+}

archive/dusksdl2/display/ui/rendertext.h

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusksdl2.h"
+#include "ui/font.h"
+#include "display/texture/texture.h"
+
+extern texture_t RENDER_TEXT_TEXTURE;
+
+/**
+ * Initializes the text rendering system.
+ */
+void renderTextInit(void);
+
+/**
+ * Draws a single character at the specified position.
+ * 
+ * @param x The x-coordinate to draw the character at.
+ * @param y The y-coordinate to draw the character at.
+ * @param c The character to draw.
+ * @param r The red component of the color (0-255).
+ * @param g The green component of the color (0-255).
+ * @param b The blue component of the color (0-255).
+ */
+void renderTextDrawChar(
+  const float_t x,
+  const float_t y,
+  const char_t c,
+  const uint8_t r,
+  const uint8_t g,
+  const uint8_t b
+);
+
+/**
+ * Draws a string of text at the specified position.
+ * 
+ * @param x The x-coordinate to draw the text at.
+ * @param y The y-coordinate to draw the text at.
+ * @param text The null-terminated string of text to draw.
+ * @param r The red component of the color (0-255).
+ * @param g The green component of the color (0-255).
+ * @param b The blue component of the color (0-255).
+ */
+void renderTextDraw(
+  const float_t x,
+  const float_t y,
+  const char_t *text,
+  const uint8_t r,
+  const uint8_t g,
+  const uint8_t b
+);
+
+/**
+ * Measures the width and height of the given text string when rendered.
+ * 
+ * @param text The null-terminated string of text to measure.
+ * @param outWidth Pointer to store the measured width in pixels.
+ * @param outHeight Pointer to store the measured height in pixels.
+ */
+void renderTextMeasure(
+  const char_t *text,
+  int32_t *outWidth,
+  int32_t *outHeight
+);
+
+/**
+ * Disposes of the text rendering system, freeing any allocated resources.
+ */
+void renderTextDispose(void);

archive/dusksdl2/display/ui/rendertextbox.c

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "rendertextbox.h"
+#include "ui/uitextbox.h"
+#include "display/ui/rendertext.h"
+#include "display/spritebatch/spritebatch.h"
+#include "assert/assert.h"
+
+void renderTextboxDraw(void) {
+  if(!UI_TEXTBOX.visible) return;
+
+  // Background
+  spriteBatchPush(
+    NULL,
+    0, RENDER_HEIGHT - UI_TEXTBOX_HEIGHT,
+    RENDER_WIDTH, RENDER_HEIGHT,
+    0x00, 0x00, 0x00, 0xFF,
+    0.0f, 0.0f, 1.0f, 1.0f
+  );
+
+  uint32_t x = 0;
+  uint32_t y = RENDER_HEIGHT - UI_TEXTBOX_HEIGHT;
+
+  if(UI_TEXTBOX.charsRevealed > 0) {
+    uint8_t charsRendered = 0;
+
+    // For each line
+    for(uint8_t i = 0; i < UI_TEXTBOX_LINES_PER_PAGE; i++) {
+      // Get count of chars in the line
+      uint8_t lineLength = UI_TEXTBOX.lineLengths[
+        i + (UI_TEXTBOX.page * UI_TEXTBOX_LINES_PER_PAGE)
+      ];
+      if(lineLength == 0) continue;
+
+      // Determine how many chars left to render
+      uint8_t lineChars = UI_TEXTBOX.charsRevealed - charsRendered;
+      
+      // Don't render more than in line
+      if(lineChars > lineLength) lineChars = lineLength;
+      assertTrue(lineChars > 0, "Line chars must be greater than 0");
+
+      // Update how many rendered
+      charsRendered += lineChars;
+
+      for(uint8_t j = 0; j < lineChars; j++) {
+        renderTextDrawChar(
+          x + UI_TEXTBOX_PADDING_X + UI_TEXTBOX_BORDER_WIDTH + (
+            j * FONT_TILE_WIDTH
+          ),
+          y + UI_TEXTBOX_PADDING_Y + UI_TEXTBOX_BORDER_HEIGHT + (
+            i * FONT_TILE_HEIGHT
+          ),
+          UI_TEXTBOX.text[
+            (i * UI_TEXTBOX_CHARS_PER_LINE) + j +
+            (UI_TEXTBOX.page * UI_TEXTBOX_CHARS_PER_PAGE)
+          ],
+          0xFF, 0xFF, 0xFF
+        );
+      }
+
+      // Check if we're done rendering text
+      if(UI_TEXTBOX.charsRevealed - charsRendered == 0) break;
+    }
+  }
+}

archive/dusksdl2/display/ui/rendertextbox.h

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+
+void renderTextboxDraw(void);

archive/dusksdl2/display/ui/renderui.c

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "renderui.h"
+#include "display/ui/rendertext.h"
+#include "display/ui/renderconsole.h"
+#include "display/ui/renderfps.h"
+#include "display/ui/rendertextbox.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/camera/camera.h"
+
+renderuicallback_t RENDER_UI_CALLBACKS[] = {
+  {
+    .init = renderTextInit,
+    .dispose = renderTextDispose
+  },
+
+  {
+    .draw = renderTextboxDraw,
+  },
+
+  {
+    .draw = renderConsoleDraw,
+  },
+  
+  {
+    .draw = renderFPSDraw,
+  },
+};
+
+#define RENDER_UI_CALLBACKS_COUNT ( \
+  sizeof(RENDER_UI_CALLBACKS) / sizeof(RENDER_UI_CALLBACKS[0]) \
+)
+
+void renderUIInit(void) {
+  for (int32_t i = 0; i < RENDER_UI_CALLBACKS_COUNT; i++) {
+    if(!RENDER_UI_CALLBACKS[i].init) continue;
+    RENDER_UI_CALLBACKS[i].init();
+  }
+}
+
+void renderUIDraw(void) {
+  cameraUIPush();
+
+  for (int32_t i = 0; i < RENDER_UI_CALLBACKS_COUNT; i++) {
+    if(!RENDER_UI_CALLBACKS[i].draw) continue;
+    RENDER_UI_CALLBACKS[i].draw();
+  }
+
+  spriteBatchFlush();
+  cameraUIPop();
+}
+
+void renderUIDispose(void) {
+  for (int32_t i = 0; i < RENDER_UI_CALLBACKS_COUNT; i++) {
+    if(!RENDER_UI_CALLBACKS[i].dispose) continue;
+    RENDER_UI_CALLBACKS[i].dispose();
+  }
+}

archive/dusksdl2/display/ui/renderui.h

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+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusksdl2.h"
+
+typedef struct {
+  void (*init)(void);
+  void (*draw)(void);
+  void (*dispose)(void);
+} renderuicallback_t;
+
+extern renderuicallback_t RENDER_UI_CALLBACKS[];
+
+/**
+ * Initialize the UI rendering system.
+ */
+void renderUIInit(void);
+
+/**
+ * Draw the UI elements.
+ */
+void renderUIDraw(void);
+
+/**
+ * Dispose of the UI rendering system.
+ */
+void renderUIDispose(void);