aboutsummaryrefslogtreecommitdiff
path: root/src/libjin/Graphics/Geometry.cpp
diff options
context:
space:
mode:
authorchai <chaifix@163.com>2018-08-22 14:01:31 +0800
committerchai <chaifix@163.com>2018-08-22 14:01:31 +0800
commit4013357b9dd88c614906263cd5b0657b535bd9cb (patch)
treefde8bb6f4f99b46f453e9e290bc5d7b122d9fbf1 /src/libjin/Graphics/Geometry.cpp
parent36621e6be9604517c900adc0d97665e975c2b325 (diff)
*update
Diffstat (limited to 'src/libjin/Graphics/Geometry.cpp')
-rw-r--r--src/libjin/Graphics/Geometry.cpp122
1 files changed, 0 insertions, 122 deletions
diff --git a/src/libjin/Graphics/Geometry.cpp b/src/libjin/Graphics/Geometry.cpp
deleted file mode 100644
index 69e3596..0000000
--- a/src/libjin/Graphics/Geometry.cpp
+++ /dev/null
@@ -1,122 +0,0 @@
-#include "../modules.h"
-#if JIN_MODULES_RENDER
-
-#include "Geometry.h"
-#include "../math/matrix.h"
-#include "../math/constant.h"
-#include <string>
-
-namespace jin
-{
-namespace graphics
-{
-
- void point(int x, int y)
- {
- float vers[] = { x + 0.5f , y + 0.5f };
- glEnableClientState(GL_VERTEX_ARRAY);
- glVertexPointer(2, GL_FLOAT, 0, (GLvoid*)vers);
- glDrawArrays(GL_POINTS, 0, 1);
- glDisableClientState(GL_VERTEX_ARRAY);
- }
-
- void points(int n, GLshort* p)
- {
- glEnableClientState(GL_VERTEX_ARRAY);
-
- glVertexPointer(2, GL_SHORT, 0, (GLvoid*)p);
- glDrawArrays(GL_POINTS, 0, n);
-
- glDisableClientState(GL_VERTEX_ARRAY);
- }
-
- void line(int x1, int y1, int x2, int y2)
- {
- glDisable(GL_TEXTURE_2D);
- float verts[] = {
- x1, y1,
- x2, y2
- };
-
- glEnableClientState(GL_VERTEX_ARRAY);
- glVertexPointer(2, GL_FLOAT, 0, (GLvoid*)verts);
- glDrawArrays(GL_LINES, 0, 2);
- glDisableClientState(GL_VERTEX_ARRAY);
- }
-
- void circle(RENDER_MODE mode, int x, int y, int r)
- {
- r = r < 0 ? 0 : r;
-
- int points = 40;
- float two_pi = static_cast<float>(PI * 2);
- if (points <= 0) points = 1;
- float angle_shift = (two_pi / points);
- float phi = .0f;
-
- float *coords = new float[2 * (points + 1)];
- for (int i = 0; i < points; ++i, phi += angle_shift)
- {
- coords[2 * i] = x + r * cos(phi);
- coords[2 * i + 1] = y + r * sin(phi);
- }
-
- coords[2 * points] = coords[0];
- coords[2 * points + 1] = coords[1];
-
- polygon(mode, coords, points);
-
- delete[] coords;
- }
-
- void rect(RENDER_MODE mode, int x, int y, int w, int h)
- {
- float coords[] = { x, y, x + w, y, x + w, y + h, x, y + h };
- polygon(mode, coords, 4);
- }
-
- void triangle(RENDER_MODE mode, int x1, int y1, int x2, int y2, int x3, int y3)
- {
- float coords[] = { x1, y1, x2, y2, x3, y3 };
- polygon(mode, coords, 3);
- }
-
- void polygon_line(float* p, int count)
- {
- float* verts = new float[count * 4];
- for (int i = 0; i < count; ++i)
- {
- // each line has two point n,n+1
- verts[i * 4] = p[i * 2];
- verts[i * 4 + 1] = p[i * 2 + 1];
- verts[i * 4 + 2] = p[(i + 1) % count * 2];
- verts[i * 4 + 3] = p[(i + 1) % count * 2 + 1];
- }
-
- glEnableClientState(GL_VERTEX_ARRAY);
- glVertexPointer(2, GL_FLOAT, 0, (GLvoid*)verts);
- glDrawArrays(GL_LINES, 0, count * 2);
- glDisableClientState(GL_VERTEX_ARRAY);
-
- delete[] verts;
- }
-
- void polygon(RENDER_MODE mode, float* p, int count)
- {
- if (mode == LINE)
- {
- polygon_line(p, count);
- }
- else if (mode == FILL)
- {
- glEnableClientState(GL_VERTEX_ARRAY);
- glVertexPointer(2, GL_FLOAT, 0, (const GLvoid*)p);
- glDrawArrays(GL_POLYGON, 0, count);
- glDisableClientState(GL_VERTEX_ARRAY);
- }
- }
-
-}
-}
-
-#endif // JIN_MODULES_RENDER \ No newline at end of file