dungeon_crawler

annotate prototype/src/cmdcon.cc @ 75:b05ab29cd17d

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color grading done
author John Tsiombikas <nuclear@member.fsf.org>
date Mon, 22 Oct 2012 03:55:00 +0300
parents 2fc004802739
children
rev   line source
nuclear@24 1 #include <stdlib.h>
nuclear@24 2 #include <iostream>
nuclear@24 3 #include <sstream>
nuclear@24 4 #include <string>
nuclear@24 5 #include "opengl.h"
nuclear@24 6 #include "cmdcon.h"
nuclear@24 7 #include "drawtext.h"
nuclear@24 8 #include "datapath.h"
nuclear@24 9 #include "cfg.h"
nuclear@24 10
nuclear@24 11 #define FONT_FILENAME "droid_sans_mono.ttf"
nuclear@24 12
nuclear@24 13 static void runcmd();
nuclear@24 14 static void complete();
nuclear@24 15
nuclear@24 16 static struct dtx_font *font;
nuclear@24 17
nuclear@24 18 std::string cmdline;
nuclear@24 19
nuclear@24 20 bool init_cmdcon()
nuclear@24 21 {
nuclear@63 22 std::string path = datafile_path(FONT_FILENAME);
nuclear@63 23 if(path.empty()) {
nuclear@24 24 fprintf(stderr, "failed to locate font file: %s\n", FONT_FILENAME);
nuclear@24 25 return false;
nuclear@24 26 }
nuclear@24 27
nuclear@63 28 printf("loading font: %s\n", path.c_str());
nuclear@63 29 if(!(font = dtx_open_font(path.c_str(), 14))) {
nuclear@63 30 fprintf(stderr, "failed to open font file: %s\n", path.c_str());
nuclear@24 31 return false;
nuclear@24 32 }
nuclear@29 33 dtx_use_font(font, 14);
nuclear@24 34 return true;
nuclear@24 35 }
nuclear@24 36
nuclear@24 37 void cleanup_cmdcon()
nuclear@24 38 {
nuclear@24 39 if(font) {
nuclear@24 40 dtx_close_font(font);
nuclear@24 41 }
nuclear@24 42 }
nuclear@24 43
nuclear@24 44 void cmdcon_keypress(int key)
nuclear@24 45 {
nuclear@24 46 if(isprint(key)) {
nuclear@24 47 cmdline.push_back(key);
nuclear@24 48 return;
nuclear@24 49 }
nuclear@24 50
nuclear@24 51 switch(key) {
nuclear@24 52 case '\n':
nuclear@24 53 case '\r':
nuclear@24 54 runcmd();
nuclear@24 55 cmdline.clear();
nuclear@24 56 break;
nuclear@24 57
nuclear@24 58 case '\t':
nuclear@24 59 complete();
nuclear@24 60 break;
nuclear@24 61
nuclear@24 62 case '\b':
nuclear@24 63 if(!cmdline.empty()) {
nuclear@25 64 cmdline.pop_back(); // <-- C++11
nuclear@24 65 }
nuclear@24 66 break;
nuclear@24 67
nuclear@24 68 default:
nuclear@24 69 break;
nuclear@24 70 }
nuclear@24 71 }
nuclear@24 72
nuclear@24 73 void draw_cmdcon()
nuclear@24 74 {
nuclear@24 75 glMatrixMode(GL_PROJECTION);
nuclear@24 76 glPushMatrix();
nuclear@24 77 glLoadIdentity();
nuclear@29 78 glOrtho(0, cfg.width, cfg.height, 0, -1, 1);
nuclear@24 79 glMatrixMode(GL_MODELVIEW);
nuclear@24 80 glPushMatrix();
nuclear@24 81 glLoadIdentity();
nuclear@24 82
nuclear@29 83 glPushAttrib(GL_ENABLE_BIT | GL_CURRENT_BIT | GL_POLYGON_BIT);
nuclear@29 84 glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
nuclear@26 85 glUseProgram(0);
nuclear@24 86 glDisable(GL_DEPTH_TEST);
nuclear@24 87 glDisable(GL_LIGHTING);
nuclear@26 88 glDisable(GL_CULL_FACE);
nuclear@26 89 glEnable(GL_BLEND);
nuclear@24 90 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
nuclear@24 91
nuclear@24 92 glBegin(GL_QUADS);
nuclear@29 93 glColor4f(0.2, 0.2, 0.2, 0.6);
nuclear@29 94 glVertex2f(0, 0);
nuclear@29 95 glVertex2f(0, dtx_line_height() * 1.5);
nuclear@29 96 glVertex2f(cfg.width, dtx_line_height() * 1.5);
nuclear@29 97 glVertex2f(cfg.width, 0);
nuclear@24 98 glEnd();
nuclear@24 99
nuclear@29 100 glTranslatef(0, dtx_line_height(), 0);
nuclear@29 101 glScalef(1, -1, 1);
nuclear@29 102
nuclear@24 103 glColor4f(0.2, 0.9, 0.3, 1.0);
nuclear@24 104 dtx_string(cmdline.c_str());
nuclear@24 105 dtx_flush();
nuclear@24 106
nuclear@24 107 glPopAttrib();
nuclear@24 108
nuclear@24 109 glMatrixMode(GL_PROJECTION);
nuclear@24 110 glPopMatrix();
nuclear@24 111 glMatrixMode(GL_MODELVIEW);
nuclear@24 112 glPopMatrix();
nuclear@24 113 }
nuclear@24 114
nuclear@24 115 static bool cmd_toggle_wire(std::stringstream &strin)
nuclear@24 116 {
nuclear@24 117 static bool wire;
nuclear@24 118 wire = !wire;
nuclear@24 119 glPolygonMode(GL_FRONT_AND_BACK, wire ? GL_LINE : GL_FILL);
nuclear@24 120 return true;
nuclear@24 121 }
nuclear@24 122
nuclear@24 123 static bool cmd_quit(std::stringstream &strin)
nuclear@24 124 {
nuclear@24 125 exit(0);
nuclear@24 126 }
nuclear@24 127
nuclear@24 128 static struct {
nuclear@24 129 std::string name;
nuclear@24 130 bool (*func)(std::stringstream &strin);
nuclear@24 131 } cmd[] = {
nuclear@24 132 {"wire", cmd_toggle_wire},
nuclear@24 133 {"quit", cmd_quit},
nuclear@24 134 {"exit", cmd_quit}
nuclear@24 135 };
nuclear@24 136 #define NUM_CMD (int)(sizeof cmd / sizeof *cmd)
nuclear@24 137
nuclear@24 138 static void runcmd()
nuclear@24 139 {
nuclear@24 140 std::stringstream strin(cmdline);
nuclear@24 141
nuclear@24 142 std::string token;
nuclear@24 143 strin >> token;
nuclear@24 144
nuclear@24 145 for(int i=0; i<NUM_CMD; i++) {
nuclear@24 146 if(token == cmd[i].name) {
nuclear@24 147 cmd[i].func(strin);
nuclear@24 148 return;
nuclear@24 149 }
nuclear@24 150 }
nuclear@24 151
nuclear@24 152 std::cerr << "unrecognized command: " << token << std::endl;
nuclear@24 153 }
nuclear@24 154
nuclear@24 155 static void complete()
nuclear@24 156 {
nuclear@24 157 }