Edgaru089
c58b3ead65
It now fades from background to white, instead of always fading from black to white.
79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
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#include "mapper_misc.h"
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#include "app.h"
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#include "entity.h"
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#include "render_util.h"
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#include "util/assert.h"
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#include <stdio.h>
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#include <math.h>
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#include <easyx.h>
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#ifdef __MINGW32__
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#define NCHAR char
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#else
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#define NCHAR wchar_t
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#endif
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namespace {
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static vector_Vector *tbuf;
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void convert_text(const char *str) {
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if (!tbuf)
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tbuf = vector_Create(sizeof(NCHAR));
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const NCHAR zero = 0;
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vector_Clear(tbuf);
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int len = strlen(str);
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int i = 0;
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while (i < len) {
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NCHAR wc = str[i];
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vector_Push(tbuf, &wc);
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i++;
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}
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vector_Push(tbuf, &zero);
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}
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} // namespace
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extern "C" void misc_render_Textbox(App *app, Entity *e, Vec2 entity_screen_pos, void *user) {
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if (!e->misc || !e->misc->textbox) {
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WARN("called on an entity without misc or misc.textbox", 0);
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return;
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}
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misc_Textbox *t = e->misc->textbox;
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// If we're too dim to see, quit early
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if (t->progress < EPS)
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return;
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// This is the background
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int r = app->clear_color & 0xff;
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int g = (app->clear_color & 0xff00) >> 8;
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int b = (app->clear_color & 0xff0000) >> 16;
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// Fade foreground from App bg to White
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settextcolor(RGB((int)roundf(r + (255 - r) * t->progress), (int)roundf(g + (255 - g) * t->progress), (int)roundf(b + (255 - b) * t->progress)));
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// Fade the background from App background to Black
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setbkcolor(RGB((int)roundf(r * (1.0f - t->progress)), (int)roundf(g * (1.0f - t->progress)), (int)roundf(b * (1.0f - t->progress))));
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// Compute the bounding rect
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RECT rect;
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ASSERT(e->position && "Textboxes must have a position component");
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rect.left = (LONG)round(entity_screen_pos.x) - 20;
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rect.right = (LONG)round(entity_screen_pos.x) + 20;
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rect.top = (LONG)round(entity_screen_pos.y) + t->offset * 0.8;
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// Convert & draw
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// https://docs.easyx.cn/zh-cn/drawtext
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convert_text(t->text);
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drawtext((LPCTSTR)vector_Data(tbuf), &rect, DT_CENTER | DT_NOCLIP);
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// Restore background to Black
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setbkcolor(0);
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}
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