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#include "video/video.h"
#include "game/game.h"
/* draw a 2d map */
void draw2D( Visual *d ) {
float width, height;
float border_left, border_bottom;
int i;
float aspect = (float)d->vp_w / (float)d->vp_h;
if(d->vp_w / game2->grid.width < d->vp_h / game2->grid.height) {
// black borders top/bottom
width = game2->grid.width + 1.0f;
height = width / aspect;
border_bottom = (height - game2->grid.height) / 2;
border_left = 0;
} else {
// black borders left/right
height = game2->grid.height + 1.0f;
width = height * aspect;
border_left = (width - game2->grid.width) / 2;
border_bottom = 0;
}
/*
{
static int foo = 0;
if(!foo)
printf("w,h: (%f,%f), border l/b: (%f,%f)\n",
width, height, border_left, border_bottom);
foo = 1;
}
*/
glViewport(d->vp_x, d->vp_y, d->vp_w, d->vp_h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, width, 0, height, 0, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(border_left, border_bottom, 0);
{
float w = game2->grid.width;
float h = game2->grid.height;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBegin(GL_QUADS);
glColor4f(0.7f, 0.7f, 0.7f, 0.3f);
glVertex2f(0, 0);
glVertex2f(w, 0);
glVertex2f(w, h);
glVertex2f(0, h);
glEnd();
}
glDisable(GL_LIGHTING);
// glDisable(GL_BLEND);
glEnable(GL_BLEND);
{
float w = game2->grid.width;
float h = game2->grid.height;
glColor3f(1, 1, 1);
glBegin(GL_LINE_LOOP);
glVertex3f( 0, 0, 0 );
glVertex3f( w, 0, 0 );
glVertex3f( w, h, 0 );
glVertex3f( 0, h, 0 );
glEnd();
}
for(i = 0; i < game->players; i++) {
Player *p = &game->player[i];
PlayerVisual *pV = gPlayerVisuals + i;
segment2* trail;
float x, y;
getPositionFromData(&x, &y, p->data);
// fixme: check if trails vanish
if (p->data->trail_height <= 0) {
continue;
}
if (p->data->trail_height < TRAIL_HEIGHT) {
/*
if player crashed but the trail hasn't disappeared yet, fade
the trail on the 2d map as it disappears.
*/
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glColor4f(pV->pColorAlpha[0], pV->pColorAlpha[1], pV->pColorAlpha[2],
p->data->trail_height / TRAIL_HEIGHT);
} else {
glBlendFunc(GL_ONE, GL_ONE);
glColor3fv(pV->pColorAlpha);
}
glPointSize(2);
glBegin(GL_POINTS);
glVertex2f( x, y );
glEnd();
glBegin(GL_LINES);
for(trail = p->data->trails; trail != p->data->trails + p->data->trailOffset; trail++)
{
glVertex2f(trail->vStart.v[0],
trail->vStart.v[1]
);
glVertex2f(trail->vStart.v[0] + trail->vDirection.v[0],
trail->vStart.v[1] + trail->vDirection.v[1]
);
}
if(trail != p->data->trails)
{
trail--;
glVertex2f(trail->vStart.v[0] + trail->vDirection.v[0],
trail->vStart.v[1] + trail->vDirection.v[1]
);
glVertex2f( floorf(x), floorf(y));
}
else
{
glVertex2f(trail->vStart.v[0],
trail->vStart.v[1]
);
glVertex2f( floorf(x), floorf(y));
}
#if 0
// draw AI debug lines
glColor3f(1,1,1);
glVertex2f(p->ai->front.vStart.v[0],
p->ai->front.vStart.v[1]);
glVertex2f(p->ai->front.vStart.v[0] + p->ai->front.vDirection.v[0],
p->ai->front.vStart.v[1] + p->ai->front.vDirection.v[1]);
glColor3f(0,1,0);
glVertex2f(p->ai->left.vStart.v[0],
p->ai->left.vStart.v[1]);
glVertex2f(p->ai->left.vStart.v[0] + p->ai->left.vDirection.v[0],
p->ai->left.vStart.v[1] + p->ai->left.vDirection.v[1]);
glColor3f(0,0,1);
glVertex2f(p->ai->right.vStart.v[0],
p->ai->right.vStart.v[1]);
glVertex2f(p->ai->right.vStart.v[0] + p->ai->right.vDirection.v[0],
p->ai->right.vStart.v[1] + p->ai->right.vDirection.v[1]);
glColor3f(0,1,1);
glVertex2f(p->ai->backleft.vStart.v[0],
p->ai->backleft.vStart.v[1]);
glVertex2f(p->ai->backleft.vStart.v[0] +
p->ai->backleft.vDirection.v[0],
p->ai->backleft.vStart.v[1] +
p->ai->backleft.vDirection.v[1]);
#endif
glEnd();
}
glDisable(GL_BLEND);
}
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