mirror of
https://github.com/danule222/xrbDS.git
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106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
#include "renderer.h"
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#include <nds.h>
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#include <stdio.h>
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std::unique_ptr<Renderer> Renderer::Create() {
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return std::unique_ptr<Renderer>(new Renderer());
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}
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void Renderer::render() {
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// clearScreen(); // Clear the screen
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beginFrame(); // Prepare for rendering
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glLoadIdentity(); // Load the identity matrix
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// Render scene
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glTranslatef(0.0f, 0.0f, -4.0f); // Move the camera back
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glRotatef(45, 1, 1, 0); // Rotation
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drawCube(1.0f); // Draw a cube
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endFrame(); // Finish rendering
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}
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void Renderer::beginFrame() {
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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gluPerspective(70, 256.0 / 192.0, 0.1, 100);
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix(); // Save the current matrix state
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glPolyFmt(POLY_ALPHA(31) | POLY_CULL_BACK);
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}
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void Renderer::endFrame() {
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glFlush(0); // Flush the rendering pipeline
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}
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void Renderer::clearScreen() {
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// glClearColor(15, 0, 0, 0); // Clear to black
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}
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void Renderer::drawCube(float size) {
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glBegin(GL_QUADS);
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// Front face
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glColor3f(1.0, 0.0, 0.0); // Red
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glVertex3f(-size, -size, size);
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glVertex3f(size, -size, size);
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glVertex3f(size, size, size);
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glVertex3f(-size, size, size);
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// Back face
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glColor3f(0.0, 1.0, 0.0); // Green
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glVertex3f(-size, -size, -size);
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glVertex3f(-size, size, -size);
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glVertex3f(size, size, -size);
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glVertex3f(size, -size, -size);
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// Left face
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glColor3f(0.0, 0.0, 1.0); // Blue
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glVertex3f(-size, -size, -size);
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glVertex3f(-size, -size, size);
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glVertex3f(-size, size, size);
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glVertex3f(-size, size, -size);
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// Right face
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glColor3f(1.0, 1.0, 0.0); // Yellow
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glVertex3f(size, -size, -size);
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glVertex3f(size, size, -size);
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glVertex3f(size, size, size);
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glVertex3f(size, -size, size);
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// Top face
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glColor3f(1.0, 0.0, 1.0); // Magenta
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glVertex3f(-size, size, -size);
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glVertex3f(-size, size, size);
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glVertex3f(size, size, size);
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glVertex3f(size, size, -size);
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// Bottom face
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glColor3f(0.0, 1.0, 1.0); // Cyan
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glVertex3f(-size, -size, -size);
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glVertex3f(size, -size, -size);
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glVertex3f(size, -size, size);
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glVertex3f(-size, -size, size);
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glEnd();
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glPopMatrix(1);
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}
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Renderer::Renderer() {
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// Initialize the video subsystem
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lcdMainOnTop(); // Set the main screen on top
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videoSetMode(MODE_0_3D); // Set 3D rendering mode
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videoSetModeSub(MODE_5_2D); // Set 2D rendering mode for the sub-screen
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vramSetBankA(VRAM_A_MAIN_BG); // Allocate VRAM for textures
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// Initialize the 3D engine
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glInit();
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glEnable(GL_ANTIALIAS);
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glClearColor(0, 0, 0, 31); // Set clear color (black)
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glClearPolyID(63); // Set default polygon ID
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glClearDepth(GL_MAX_DEPTH); // Set clear depth
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glViewport(0, 0, 255, 191); // Set viewport
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}
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