mirror of
https://github.com/nicbarker/clay.git
synced 2025-11-04 08:36:17 +00:00
234 lines
11 KiB
C
234 lines
11 KiB
C
#include "raylib.h"
|
|
#include "raymath.h"
|
|
#include "stdint.h"
|
|
#include "string.h"
|
|
#include "stdio.h"
|
|
#include "stdlib.h"
|
|
|
|
#define CLAY_RECTANGLE_TO_RAYLIB_RECTANGLE(rectangle) (Rectangle) { .x = rectangle.x, .y = rectangle.y, .width = rectangle.width, .height = rectangle.height }
|
|
#define CLAY_COLOR_TO_RAYLIB_COLOR(color) (Color) { .r = (unsigned char)roundf(color.r), .g = (unsigned char)roundf(color.g), .b = (unsigned char)roundf(color.b), .a = (unsigned char)roundf(color.a) }
|
|
|
|
typedef struct
|
|
{
|
|
uint32_t fontId;
|
|
Font font;
|
|
} Raylib_Font;
|
|
|
|
Raylib_Font Raylib_fonts[10];
|
|
Camera Raylib_camera;
|
|
|
|
typedef enum
|
|
{
|
|
CUSTOM_LAYOUT_ELEMENT_TYPE_3D_MODEL
|
|
} CustomLayoutElementType;
|
|
|
|
typedef struct
|
|
{
|
|
Model model;
|
|
float scale;
|
|
Vector3 position;
|
|
Matrix rotation;
|
|
} CustomLayoutElement_3DModel;
|
|
|
|
typedef struct
|
|
{
|
|
CustomLayoutElementType type;
|
|
union {
|
|
CustomLayoutElement_3DModel model;
|
|
};
|
|
} CustomLayoutElement;
|
|
|
|
// Get a ray trace from the screen position (i.e mouse) within a specific section of the screen
|
|
Ray GetScreenToWorldPointWithZDistance(Vector2 position, Camera camera, int screenWidth, int screenHeight, float zDistance)
|
|
{
|
|
Ray ray = { 0 };
|
|
|
|
// Calculate normalized device coordinates
|
|
// NOTE: y value is negative
|
|
float x = (2.0f*position.x)/(float)screenWidth - 1.0f;
|
|
float y = 1.0f - (2.0f*position.y)/(float)screenHeight;
|
|
float z = 1.0f;
|
|
|
|
// Store values in a vector
|
|
Vector3 deviceCoords = { x, y, z };
|
|
|
|
// Calculate view matrix from camera look at
|
|
Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up);
|
|
|
|
Matrix matProj = MatrixIdentity();
|
|
|
|
if (camera.projection == CAMERA_PERSPECTIVE)
|
|
{
|
|
// Calculate projection matrix from perspective
|
|
matProj = MatrixPerspective(camera.fovy*DEG2RAD, ((double)screenWidth/(double)screenHeight), 0.01f, zDistance);
|
|
}
|
|
else if (camera.projection == CAMERA_ORTHOGRAPHIC)
|
|
{
|
|
double aspect = (double)screenWidth/(double)screenHeight;
|
|
double top = camera.fovy/2.0;
|
|
double right = top*aspect;
|
|
|
|
// Calculate projection matrix from orthographic
|
|
matProj = MatrixOrtho(-right, right, -top, top, 0.01, 1000.0);
|
|
}
|
|
|
|
// Unproject far/near points
|
|
Vector3 nearPoint = Vector3Unproject((Vector3){ deviceCoords.x, deviceCoords.y, 0.0f }, matProj, matView);
|
|
Vector3 farPoint = Vector3Unproject((Vector3){ deviceCoords.x, deviceCoords.y, 1.0f }, matProj, matView);
|
|
|
|
// Calculate normalized direction vector
|
|
Vector3 direction = Vector3Normalize(Vector3Subtract(farPoint, nearPoint));
|
|
|
|
ray.position = farPoint;
|
|
|
|
// Apply calculated vectors to ray
|
|
ray.direction = direction;
|
|
|
|
return ray;
|
|
}
|
|
|
|
uint32_t measureCalls = 0;
|
|
|
|
static inline Clay_Dimensions Raylib_MeasureText(Clay_String *text, Clay_TextElementConfig *config) {
|
|
measureCalls++;
|
|
// Measure string size for Font
|
|
Clay_Dimensions textSize = { 0 };
|
|
|
|
float maxTextWidth = 0.0f;
|
|
float lineTextWidth = 0;
|
|
|
|
float textHeight = config->fontSize;
|
|
Font fontToUse = Raylib_fonts[config->fontId].font;
|
|
float scaleFactor = config->fontSize/(float)fontToUse.baseSize;
|
|
|
|
for (int i = 0; i < text->length; ++i)
|
|
{
|
|
if (text->chars[i] == '\n') {
|
|
maxTextWidth = fmax(maxTextWidth, lineTextWidth);
|
|
lineTextWidth = 0;
|
|
continue;
|
|
}
|
|
int index = text->chars[i] - 32;
|
|
if (fontToUse.glyphs[index].advanceX != 0) lineTextWidth += fontToUse.glyphs[index].advanceX;
|
|
else lineTextWidth += (fontToUse.recs[index].width + fontToUse.glyphs[index].offsetX);
|
|
}
|
|
|
|
maxTextWidth = fmax(maxTextWidth, lineTextWidth);
|
|
|
|
textSize.width = maxTextWidth * scaleFactor;
|
|
textSize.height = textHeight;
|
|
|
|
return textSize;
|
|
}
|
|
|
|
void Clay_Raylib_Initialize(int width, int height, const char *title, unsigned int flags) {
|
|
SetConfigFlags(flags);
|
|
InitWindow(width, height, title);
|
|
// EnableEventWaiting();
|
|
}
|
|
|
|
void Clay_Raylib_Render(Clay_RenderCommandArray renderCommands)
|
|
{
|
|
measureCalls = 0;
|
|
for (int j = 0; j < renderCommands.length; j++)
|
|
{
|
|
Clay_RenderCommand *renderCommand = Clay_RenderCommandArray_Get(&renderCommands, j);
|
|
Clay_BoundingBox boundingBox = renderCommand->boundingBox;
|
|
switch (renderCommand->commandType)
|
|
{
|
|
case CLAY_RENDER_COMMAND_TYPE_TEXT: {
|
|
// Raylib uses standard C strings so isn't compatible with cheap slices, we need to clone the string to append null terminator
|
|
Clay_String text = renderCommand->text;
|
|
char *cloned = (char *)malloc(text.length + 1);
|
|
memcpy(cloned, text.chars, text.length);
|
|
cloned[text.length] = '\0';
|
|
Font fontToUse = Raylib_fonts[renderCommand->config.textElementConfig->fontId].font;
|
|
DrawTextEx(fontToUse, cloned, (Vector2){boundingBox.x, boundingBox.y}, (float)renderCommand->config.textElementConfig->fontSize, (float)renderCommand->config.textElementConfig->letterSpacing, CLAY_COLOR_TO_RAYLIB_COLOR(renderCommand->config.textElementConfig->textColor));
|
|
free(cloned);
|
|
break;
|
|
}
|
|
case CLAY_RENDER_COMMAND_TYPE_IMAGE: {
|
|
Texture2D imageTexture = *(Texture2D *)renderCommand->config.imageElementConfig->imageData;
|
|
DrawTextureEx(
|
|
imageTexture,
|
|
(Vector2){boundingBox.x, boundingBox.y},
|
|
0,
|
|
boundingBox.width / (float)imageTexture.width,
|
|
WHITE);
|
|
break;
|
|
}
|
|
case CLAY_RENDER_COMMAND_TYPE_SCISSOR_START: {
|
|
BeginScissorMode((int)roundf(boundingBox.x), (int)roundf(boundingBox.y), (int)roundf(boundingBox.width), (int)roundf(boundingBox.height));
|
|
break;
|
|
}
|
|
case CLAY_RENDER_COMMAND_TYPE_SCISSOR_END: {
|
|
EndScissorMode();
|
|
break;
|
|
}
|
|
case CLAY_RENDER_COMMAND_TYPE_RECTANGLE: {
|
|
Clay_RectangleElementConfig *config = renderCommand->config.rectangleElementConfig;
|
|
if (config->cornerRadius.topLeft > 0) {
|
|
float radius = (config->cornerRadius.topLeft * 2) / (float)((boundingBox.width > boundingBox.height) ? boundingBox.height : boundingBox.width);
|
|
DrawRectangleRounded((Rectangle) { boundingBox.x, boundingBox.y, boundingBox.width, boundingBox.height }, radius, 8, CLAY_COLOR_TO_RAYLIB_COLOR(config->color));
|
|
} else {
|
|
DrawRectangle(boundingBox.x, boundingBox.y, boundingBox.width, boundingBox.height, CLAY_COLOR_TO_RAYLIB_COLOR(config->color));
|
|
}
|
|
break;
|
|
}
|
|
case CLAY_RENDER_COMMAND_TYPE_BORDER: {
|
|
Clay_BorderElementConfig *config = renderCommand->config.borderElementConfig;
|
|
// Left border
|
|
if (config->left.width > 0) {
|
|
DrawRectangle((int)roundf(boundingBox.x), (int)roundf(boundingBox.y + config->cornerRadius.topLeft), (int)config->left.width, (int)roundf(boundingBox.height - config->cornerRadius.topLeft - config->cornerRadius.bottomLeft), CLAY_COLOR_TO_RAYLIB_COLOR(config->left.color));
|
|
}
|
|
// Right border
|
|
if (config->right.width > 0) {
|
|
DrawRectangle((int)roundf(boundingBox.x + boundingBox.width - config->right.width), (int)roundf(boundingBox.y + config->cornerRadius.topRight), (int)config->right.width, (int)roundf(boundingBox.height - config->cornerRadius.topRight - config->cornerRadius.bottomRight), CLAY_COLOR_TO_RAYLIB_COLOR(config->right.color));
|
|
}
|
|
// Top border
|
|
if (config->top.width > 0) {
|
|
DrawRectangle((int)roundf(boundingBox.x + config->cornerRadius.topLeft), (int)roundf(boundingBox.y), (int)roundf(boundingBox.width - config->cornerRadius.topLeft - config->cornerRadius.topRight), (int)config->top.width, CLAY_COLOR_TO_RAYLIB_COLOR(config->top.color));
|
|
}
|
|
// Bottom border
|
|
if (config->bottom.width > 0) {
|
|
DrawRectangle((int)roundf(boundingBox.x + config->cornerRadius.bottomLeft), (int)roundf(boundingBox.y + boundingBox.height - config->bottom.width), (int)roundf(boundingBox.width - config->cornerRadius.bottomLeft - config->cornerRadius.bottomRight), (int)config->bottom.width, CLAY_COLOR_TO_RAYLIB_COLOR(config->bottom.color));
|
|
}
|
|
if (config->cornerRadius.topLeft > 0) {
|
|
DrawRing((Vector2) { roundf(boundingBox.x + config->cornerRadius.topLeft), roundf(boundingBox.y + config->cornerRadius.topLeft) }, roundf(config->cornerRadius.topLeft - config->top.width), config->cornerRadius.topLeft, 180, 270, 10, CLAY_COLOR_TO_RAYLIB_COLOR(config->top.color));
|
|
}
|
|
if (config->cornerRadius.topRight > 0) {
|
|
DrawRing((Vector2) { roundf(boundingBox.x + boundingBox.width - config->cornerRadius.topRight), roundf(boundingBox.y + config->cornerRadius.topRight) }, roundf(config->cornerRadius.topRight - config->top.width), config->cornerRadius.topRight, 270, 360, 10, CLAY_COLOR_TO_RAYLIB_COLOR(config->top.color));
|
|
}
|
|
if (config->cornerRadius.bottomLeft > 0) {
|
|
DrawRing((Vector2) { roundf(boundingBox.x + config->cornerRadius.bottomLeft), roundf(boundingBox.y + boundingBox.height - config->cornerRadius.bottomLeft) }, roundf(config->cornerRadius.bottomLeft - config->top.width), config->cornerRadius.bottomLeft, 90, 180, 10, CLAY_COLOR_TO_RAYLIB_COLOR(config->bottom.color));
|
|
}
|
|
if (config->cornerRadius.bottomRight > 0) {
|
|
DrawRing((Vector2) { roundf(boundingBox.x + boundingBox.width - config->cornerRadius.bottomRight), roundf(boundingBox.y + boundingBox.height - config->cornerRadius.bottomRight) }, roundf(config->cornerRadius.bottomRight - config->bottom.width), config->cornerRadius.bottomRight, 0.1, 90, 10, CLAY_COLOR_TO_RAYLIB_COLOR(config->bottom.color));
|
|
}
|
|
break;
|
|
}
|
|
case CLAY_RENDER_COMMAND_TYPE_CUSTOM: {
|
|
CustomLayoutElement *customElement = (CustomLayoutElement *)renderCommand->config.customElementConfig->customData;
|
|
if (!customElement) continue;
|
|
switch (customElement->type) {
|
|
case CUSTOM_LAYOUT_ELEMENT_TYPE_3D_MODEL: {
|
|
Clay_BoundingBox rootBox = renderCommands.internalArray[0].boundingBox;
|
|
float scaleValue = CLAY__MIN(CLAY__MIN(1, 768 / rootBox.height) * CLAY__MAX(1, rootBox.width / 1024), 1.5f);
|
|
Ray positionRay = GetScreenToWorldPointWithZDistance((Vector2) { renderCommand->boundingBox.x + renderCommand->boundingBox.width / 2, renderCommand->boundingBox.y + (renderCommand->boundingBox.height / 2) + 20 }, Raylib_camera, (int)roundf(rootBox.width), (int)roundf(rootBox.height), 140);
|
|
BeginMode3D(Raylib_camera);
|
|
DrawModel(customElement->model.model, positionRay.position, customElement->model.scale * scaleValue, WHITE); // Draw 3d model with texture
|
|
EndMode3D();
|
|
break;
|
|
}
|
|
default: break;
|
|
}
|
|
break;
|
|
}
|
|
default: {
|
|
printf("Error: unhandled render command.");
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
}
|